mbed library sources
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targets/cmsis/TARGET_STM/TARGET_NUCLEO_F401RE/stm32f4xx_hal_rcc.c@106:ced8cbb51063, 2014-02-26 (annotated)
- Committer:
- mbed_official
- Date:
- Wed Feb 26 09:45:12 2014 +0000
- Revision:
- 106:ced8cbb51063
- Parent:
- 87:085cde657901
Synchronized with git revision 4222735eff5868389433f0e9271976b39c8115cd
Full URL: https://github.com/mbedmicro/mbed/commit/4222735eff5868389433f0e9271976b39c8115cd/
[NUCLEO_xxx] Update STM32CubeF4 driver V1.0.0 + update license
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
mbed_official | 87:085cde657901 | 1 | /** |
mbed_official | 87:085cde657901 | 2 | ****************************************************************************** |
mbed_official | 87:085cde657901 | 3 | * @file stm32f4xx_hal_rcc.c |
mbed_official | 87:085cde657901 | 4 | * @author MCD Application Team |
mbed_official | 106:ced8cbb51063 | 5 | * @version V1.0.0 |
mbed_official | 106:ced8cbb51063 | 6 | * @date 18-February-2014 |
mbed_official | 87:085cde657901 | 7 | * @brief RCC HAL module driver. |
mbed_official | 87:085cde657901 | 8 | * This file provides firmware functions to manage the following |
mbed_official | 87:085cde657901 | 9 | * functionalities of the Reset and Clock Control (RCC) peripheral: |
mbed_official | 87:085cde657901 | 10 | * + Initialization and de-initialization functions |
mbed_official | 87:085cde657901 | 11 | * + Peripheral Control functions |
mbed_official | 87:085cde657901 | 12 | * |
mbed_official | 87:085cde657901 | 13 | @verbatim |
mbed_official | 87:085cde657901 | 14 | ============================================================================== |
mbed_official | 87:085cde657901 | 15 | ##### RCC specific features ##### |
mbed_official | 87:085cde657901 | 16 | ============================================================================== |
mbed_official | 87:085cde657901 | 17 | [..] |
mbed_official | 87:085cde657901 | 18 | After reset the device is running from Internal High Speed oscillator |
mbed_official | 87:085cde657901 | 19 | (HSI 16MHz) with Flash 0 wait state, Flash prefetch buffer, D-Cache |
mbed_official | 87:085cde657901 | 20 | and I-Cache are disabled, and all peripherals are off except internal |
mbed_official | 87:085cde657901 | 21 | SRAM, Flash and JTAG. |
mbed_official | 87:085cde657901 | 22 | (+) There is no prescaler on High speed (AHB) and Low speed (APB) busses; |
mbed_official | 87:085cde657901 | 23 | all peripherals mapped on these busses are running at HSI speed. |
mbed_official | 87:085cde657901 | 24 | (+) The clock for all peripherals is switched off, except the SRAM and FLASH. |
mbed_official | 87:085cde657901 | 25 | (+) All GPIOs are in input floating state, except the JTAG pins which |
mbed_official | 87:085cde657901 | 26 | are assigned to be used for debug purpose. |
mbed_official | 87:085cde657901 | 27 | |
mbed_official | 87:085cde657901 | 28 | [..] |
mbed_official | 87:085cde657901 | 29 | Once the device started from reset, the user application has to: |
mbed_official | 87:085cde657901 | 30 | (+) Configure the clock source to be used to drive the System clock |
mbed_official | 87:085cde657901 | 31 | (if the application needs higher frequency/performance) |
mbed_official | 87:085cde657901 | 32 | (+) Configure the System clock frequency and Flash settings |
mbed_official | 87:085cde657901 | 33 | (+) Configure the AHB and APB busses prescalers |
mbed_official | 87:085cde657901 | 34 | (+) Enable the clock for the peripheral(s) to be used |
mbed_official | 87:085cde657901 | 35 | (+) Configure the clock source(s) for peripherals which clocks are not |
mbed_official | 87:085cde657901 | 36 | derived from the System clock (I2S, RTC, ADC, USB OTG FS/SDIO/RNG) |
mbed_official | 87:085cde657901 | 37 | |
mbed_official | 87:085cde657901 | 38 | @endverbatim |
mbed_official | 87:085cde657901 | 39 | ****************************************************************************** |
mbed_official | 87:085cde657901 | 40 | * @attention |
mbed_official | 87:085cde657901 | 41 | * |
mbed_official | 87:085cde657901 | 42 | * <h2><center>© COPYRIGHT(c) 2014 STMicroelectronics</center></h2> |
mbed_official | 87:085cde657901 | 43 | * |
mbed_official | 87:085cde657901 | 44 | * Redistribution and use in source and binary forms, with or without modification, |
mbed_official | 87:085cde657901 | 45 | * are permitted provided that the following conditions are met: |
mbed_official | 87:085cde657901 | 46 | * 1. Redistributions of source code must retain the above copyright notice, |
mbed_official | 87:085cde657901 | 47 | * this list of conditions and the following disclaimer. |
mbed_official | 87:085cde657901 | 48 | * 2. Redistributions in binary form must reproduce the above copyright notice, |
mbed_official | 87:085cde657901 | 49 | * this list of conditions and the following disclaimer in the documentation |
mbed_official | 87:085cde657901 | 50 | * and/or other materials provided with the distribution. |
mbed_official | 87:085cde657901 | 51 | * 3. Neither the name of STMicroelectronics nor the names of its contributors |
mbed_official | 87:085cde657901 | 52 | * may be used to endorse or promote products derived from this software |
mbed_official | 87:085cde657901 | 53 | * without specific prior written permission. |
mbed_official | 87:085cde657901 | 54 | * |
mbed_official | 87:085cde657901 | 55 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
mbed_official | 87:085cde657901 | 56 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
mbed_official | 87:085cde657901 | 57 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
mbed_official | 87:085cde657901 | 58 | * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE |
mbed_official | 87:085cde657901 | 59 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
mbed_official | 87:085cde657901 | 60 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
mbed_official | 87:085cde657901 | 61 | * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
mbed_official | 87:085cde657901 | 62 | * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
mbed_official | 87:085cde657901 | 63 | * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
mbed_official | 87:085cde657901 | 64 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
mbed_official | 87:085cde657901 | 65 | * |
mbed_official | 87:085cde657901 | 66 | ****************************************************************************** |
mbed_official | 87:085cde657901 | 67 | */ |
mbed_official | 87:085cde657901 | 68 | |
mbed_official | 87:085cde657901 | 69 | /* Includes ------------------------------------------------------------------*/ |
mbed_official | 87:085cde657901 | 70 | #include "stm32f4xx_hal.h" |
mbed_official | 87:085cde657901 | 71 | |
mbed_official | 87:085cde657901 | 72 | /** @addtogroup STM32F4xx_HAL_Driver |
mbed_official | 87:085cde657901 | 73 | * @{ |
mbed_official | 87:085cde657901 | 74 | */ |
mbed_official | 87:085cde657901 | 75 | |
mbed_official | 87:085cde657901 | 76 | /** @defgroup RCC |
mbed_official | 87:085cde657901 | 77 | * @brief RCC HAL module driver |
mbed_official | 87:085cde657901 | 78 | * @{ |
mbed_official | 87:085cde657901 | 79 | */ |
mbed_official | 87:085cde657901 | 80 | |
mbed_official | 87:085cde657901 | 81 | #ifdef HAL_RCC_MODULE_ENABLED |
mbed_official | 87:085cde657901 | 82 | |
mbed_official | 87:085cde657901 | 83 | /* Private typedef -----------------------------------------------------------*/ |
mbed_official | 87:085cde657901 | 84 | /* Private define ------------------------------------------------------------*/ |
mbed_official | 87:085cde657901 | 85 | #define HSE_TIMEOUT_VALUE HSE_STARTUP_TIMEOUT |
mbed_official | 87:085cde657901 | 86 | #define HSI_TIMEOUT_VALUE ((uint32_t)100) /* 100 ms */ |
mbed_official | 87:085cde657901 | 87 | #define LSI_TIMEOUT_VALUE ((uint32_t)100) /* 100 ms */ |
mbed_official | 87:085cde657901 | 88 | #define PLL_TIMEOUT_VALUE ((uint32_t)100) /* 100 ms */ |
mbed_official | 87:085cde657901 | 89 | #define CLOCKSWITCH_TIMEOUT_VALUE ((uint32_t)5000) /* 5 s */ |
mbed_official | 87:085cde657901 | 90 | |
mbed_official | 87:085cde657901 | 91 | /* Private macro -------------------------------------------------------------*/ |
mbed_official | 87:085cde657901 | 92 | #define __MCO1_CLK_ENABLE() __GPIOA_CLK_ENABLE() |
mbed_official | 87:085cde657901 | 93 | #define MCO1_GPIO_PORT GPIOA |
mbed_official | 87:085cde657901 | 94 | #define MCO1_PIN GPIO_PIN_8 |
mbed_official | 87:085cde657901 | 95 | |
mbed_official | 87:085cde657901 | 96 | #define __MCO2_CLK_ENABLE() __GPIOC_CLK_ENABLE() |
mbed_official | 87:085cde657901 | 97 | #define MCO2_GPIO_PORT GPIOC |
mbed_official | 87:085cde657901 | 98 | #define MCO2_PIN GPIO_PIN_9 |
mbed_official | 87:085cde657901 | 99 | |
mbed_official | 87:085cde657901 | 100 | /* Private variables ---------------------------------------------------------*/ |
mbed_official | 87:085cde657901 | 101 | const uint8_t APBAHBPrescTable[16] = {0, 0, 0, 0, 1, 2, 3, 4, 1, 2, 3, 4, 6, 7, 8, 9}; |
mbed_official | 87:085cde657901 | 102 | |
mbed_official | 87:085cde657901 | 103 | /* Private function prototypes -----------------------------------------------*/ |
mbed_official | 87:085cde657901 | 104 | /* Private functions ---------------------------------------------------------*/ |
mbed_official | 87:085cde657901 | 105 | |
mbed_official | 87:085cde657901 | 106 | /** @defgroup RCC_Private_Functions |
mbed_official | 87:085cde657901 | 107 | * @{ |
mbed_official | 87:085cde657901 | 108 | */ |
mbed_official | 87:085cde657901 | 109 | |
mbed_official | 87:085cde657901 | 110 | /** @defgroup RCC_Group1 Initialization and de-initialization functions |
mbed_official | 87:085cde657901 | 111 | * @brief Initialization and Configuration functions |
mbed_official | 87:085cde657901 | 112 | * |
mbed_official | 87:085cde657901 | 113 | @verbatim |
mbed_official | 87:085cde657901 | 114 | =============================================================================== |
mbed_official | 87:085cde657901 | 115 | ##### Initialization and de-initialization functions ##### |
mbed_official | 87:085cde657901 | 116 | =============================================================================== |
mbed_official | 87:085cde657901 | 117 | [..] |
mbed_official | 87:085cde657901 | 118 | This section provide functions allowing to configure the internal/external oscillators |
mbed_official | 87:085cde657901 | 119 | (HSE, HSI, LSE, LSI, PLL, CSS and MCO) and the System busses clocks (SYSCLK, AHB, APB1 |
mbed_official | 87:085cde657901 | 120 | and APB2). |
mbed_official | 87:085cde657901 | 121 | |
mbed_official | 87:085cde657901 | 122 | [..] Internal/external clock and PLL configuration |
mbed_official | 87:085cde657901 | 123 | (#) HSI (high-speed internal), 16 MHz factory-trimmed RC used directly or through |
mbed_official | 87:085cde657901 | 124 | the PLL as System clock source. |
mbed_official | 87:085cde657901 | 125 | |
mbed_official | 87:085cde657901 | 126 | (#) LSI (low-speed internal), 32 KHz low consumption RC used as IWDG and/or RTC |
mbed_official | 87:085cde657901 | 127 | clock source. |
mbed_official | 87:085cde657901 | 128 | |
mbed_official | 87:085cde657901 | 129 | (#) HSE (high-speed external), 4 to 26 MHz crystal oscillator used directly or |
mbed_official | 87:085cde657901 | 130 | through the PLL as System clock source. Can be used also as RTC clock source. |
mbed_official | 87:085cde657901 | 131 | |
mbed_official | 87:085cde657901 | 132 | (#) LSE (low-speed external), 32 KHz oscillator used as RTC clock source. |
mbed_official | 87:085cde657901 | 133 | |
mbed_official | 87:085cde657901 | 134 | (#) PLL (clocked by HSI or HSE), featuring two different output clocks: |
mbed_official | 87:085cde657901 | 135 | (++) The first output is used to generate the high speed system clock (up to 168 MHz) |
mbed_official | 87:085cde657901 | 136 | (++) The second output is used to generate the clock for the USB OTG FS (48 MHz), |
mbed_official | 87:085cde657901 | 137 | the random analog generator (<=48 MHz) and the SDIO (<= 48 MHz). |
mbed_official | 87:085cde657901 | 138 | |
mbed_official | 87:085cde657901 | 139 | (#) CSS (Clock security system), once enable using the macro __HAL_RCC_CSS_ENABLE() |
mbed_official | 87:085cde657901 | 140 | and if a HSE clock failure occurs(HSE used directly or through PLL as System |
mbed_official | 87:085cde657901 | 141 | clock source), the System clockis automatically switched to HSI and an interrupt |
mbed_official | 87:085cde657901 | 142 | is generated if enabled. The interrupt is linked to the Cortex-M4 NMI |
mbed_official | 87:085cde657901 | 143 | (Non-Maskable Interrupt) exception vector. |
mbed_official | 87:085cde657901 | 144 | |
mbed_official | 87:085cde657901 | 145 | (#) MCO1 (microcontroller clock output), used to output HSI, LSE, HSE or PLL |
mbed_official | 87:085cde657901 | 146 | clock (through a configurable prescaler) on PA8 pin. |
mbed_official | 87:085cde657901 | 147 | |
mbed_official | 87:085cde657901 | 148 | (#) MCO2 (microcontroller clock output), used to output HSE, PLL, SYSCLK or PLLI2S |
mbed_official | 87:085cde657901 | 149 | clock (through a configurable prescaler) on PC9 pin. |
mbed_official | 87:085cde657901 | 150 | |
mbed_official | 87:085cde657901 | 151 | [..] System, AHB and APB busses clocks configuration |
mbed_official | 87:085cde657901 | 152 | (#) Several clock sources can be used to drive the System clock (SYSCLK): HSI, |
mbed_official | 87:085cde657901 | 153 | HSE and PLL. |
mbed_official | 87:085cde657901 | 154 | The AHB clock (HCLK) is derived from System clock through configurable |
mbed_official | 87:085cde657901 | 155 | prescaler and used to clock the CPU, memory and peripherals mapped |
mbed_official | 87:085cde657901 | 156 | on AHB bus (DMA, GPIO...). APB1 (PCLK1) and APB2 (PCLK2) clocks are derived |
mbed_official | 87:085cde657901 | 157 | from AHB clock through configurable prescalers and used to clock |
mbed_official | 87:085cde657901 | 158 | the peripherals mapped on these busses. You can use |
mbed_official | 87:085cde657901 | 159 | "HAL_RCC_GetSysClockFreq()" function to retrieve the frequencies of these clocks. |
mbed_official | 87:085cde657901 | 160 | |
mbed_official | 87:085cde657901 | 161 | -@- All the peripheral clocks are derived from the System clock (SYSCLK) except: |
mbed_official | 87:085cde657901 | 162 | (+@) I2S: the I2S clock can be derived either from a specific PLL (PLLI2S) or |
mbed_official | 87:085cde657901 | 163 | from an external clock mapped on the I2S_CKIN pin. |
mbed_official | 87:085cde657901 | 164 | You have to use __HAL_RCC_PLLI2S_CONFIG() macro to configure this clock. |
mbed_official | 87:085cde657901 | 165 | (+@) SAI: the SAI clock can be derived either from a specific PLL (PLLI2S) or (PLLSAI) or |
mbed_official | 87:085cde657901 | 166 | from an external clock mapped on the I2S_CKIN pin. |
mbed_official | 87:085cde657901 | 167 | You have to use __HAL_RCC_PLLI2S_CONFIG() macro to configure this clock. |
mbed_official | 87:085cde657901 | 168 | (+@) RTC: the RTC clock can be derived either from the LSI, LSE or HSE clock |
mbed_official | 87:085cde657901 | 169 | divided by 2 to 31. You have to use __HAL_RCC_RTC_CONFIG() and __HAL_RCC_RTC_ENABLE() |
mbed_official | 87:085cde657901 | 170 | macros to configure this clock. |
mbed_official | 87:085cde657901 | 171 | (+@) USB OTG FS, SDIO and RTC: USB OTG FS require a frequency equal to 48 MHz |
mbed_official | 87:085cde657901 | 172 | to work correctly, while the SDIO require a frequency equal or lower than |
mbed_official | 87:085cde657901 | 173 | to 48. This clock is derived of the main PLL through PLLQ divider. |
mbed_official | 87:085cde657901 | 174 | (+@) IWDG clock which is always the LSI clock. |
mbed_official | 87:085cde657901 | 175 | |
mbed_official | 87:085cde657901 | 176 | (#) For the STM32F405xx/07xx and STM32F415xx/17xx devices, the maximum |
mbed_official | 87:085cde657901 | 177 | frequency of the SYSCLK and HCLK is 168 MHz, PCLK2 84 MHz and PCLK1 42 MHz. |
mbed_official | 87:085cde657901 | 178 | Depending on the device voltage range, the maximum frequency should |
mbed_official | 87:085cde657901 | 179 | be adapted accordingly: |
mbed_official | 87:085cde657901 | 180 | +-------------------------------------------------------------------------------------+ |
mbed_official | 87:085cde657901 | 181 | | Latency | HCLK clock frequency (MHz) | |
mbed_official | 87:085cde657901 | 182 | | |---------------------------------------------------------------------| |
mbed_official | 87:085cde657901 | 183 | | | voltage range | voltage range | voltage range | voltage range | |
mbed_official | 87:085cde657901 | 184 | | | 2.7 V - 3.6 V | 2.4 V - 2.7 V | 2.1 V - 2.4 V | 1.8 V - 2.1 V | |
mbed_official | 87:085cde657901 | 185 | |---------------|----------------|----------------|-----------------|-----------------| |
mbed_official | 87:085cde657901 | 186 | |0WS(1CPU cycle)|0 < HCLK <= 30 |0 < HCLK <= 24 |0 < HCLK <= 22 |0 < HCLK <= 20 | |
mbed_official | 87:085cde657901 | 187 | |---------------|----------------|----------------|-----------------|-----------------| |
mbed_official | 87:085cde657901 | 188 | |1WS(2CPU cycle)|30 < HCLK <= 60 |24 < HCLK <= 48 |22 < HCLK <= 44 |20 < HCLK <= 40 | |
mbed_official | 87:085cde657901 | 189 | |---------------|----------------|----------------|-----------------|-----------------| |
mbed_official | 87:085cde657901 | 190 | |2WS(3CPU cycle)|60 < HCLK <= 90 |48 < HCLK <= 72 |44 < HCLK <= 66 |40 < HCLK <= 60 | |
mbed_official | 87:085cde657901 | 191 | |---------------|----------------|----------------|-----------------|-----------------| |
mbed_official | 87:085cde657901 | 192 | |3WS(4CPU cycle)|90 < HCLK <= 120|72 < HCLK <= 96 |66 < HCLK <= 88 |60 < HCLK <= 80 | |
mbed_official | 87:085cde657901 | 193 | |---------------|----------------|----------------|-----------------|-----------------| |
mbed_official | 87:085cde657901 | 194 | |4WS(5CPU cycle)|120< HCLK <= 150|96 < HCLK <= 120|88 < HCLK <= 110 |80 < HCLK <= 100 | |
mbed_official | 87:085cde657901 | 195 | |---------------|----------------|----------------|-----------------|-----------------| |
mbed_official | 87:085cde657901 | 196 | |5WS(6CPU cycle)|150< HCLK <= 168|120< HCLK <= 144|110 < HCLK <= 132|100 < HCLK <= 120| |
mbed_official | 87:085cde657901 | 197 | |---------------|----------------|----------------|-----------------|-----------------| |
mbed_official | 87:085cde657901 | 198 | |6WS(7CPU cycle)| NA |144< HCLK <= 168|132 < HCLK <= 154|120 < HCLK <= 140| |
mbed_official | 87:085cde657901 | 199 | |---------------|----------------|----------------|-----------------|-----------------| |
mbed_official | 87:085cde657901 | 200 | |7WS(8CPU cycle)| NA | NA |154 < HCLK <= 168|140 < HCLK <= 160| |
mbed_official | 87:085cde657901 | 201 | +-------------------------------------------------------------------------------------+ |
mbed_official | 87:085cde657901 | 202 | (#) For the STM32F42xxx and STM32F43xxx devices, the maximum frequency |
mbed_official | 87:085cde657901 | 203 | of the SYSCLK and HCLK is 180 MHz, PCLK2 90 MHz and PCLK1 45 MHz. |
mbed_official | 87:085cde657901 | 204 | Depending on the device voltage range, the maximum frequency should |
mbed_official | 87:085cde657901 | 205 | be adapted accordingly: |
mbed_official | 87:085cde657901 | 206 | +-------------------------------------------------------------------------------------+ |
mbed_official | 87:085cde657901 | 207 | | Latency | HCLK clock frequency (MHz) | |
mbed_official | 87:085cde657901 | 208 | | |---------------------------------------------------------------------| |
mbed_official | 87:085cde657901 | 209 | | | voltage range | voltage range | voltage range | voltage range | |
mbed_official | 87:085cde657901 | 210 | | | 2.7 V - 3.6 V | 2.4 V - 2.7 V | 2.1 V - 2.4 V | 1.8 V - 2.1 V | |
mbed_official | 87:085cde657901 | 211 | |---------------|----------------|----------------|-----------------|-----------------| |
mbed_official | 87:085cde657901 | 212 | |0WS(1CPU cycle)|0 < HCLK <= 30 |0 < HCLK <= 24 |0 < HCLK <= 22 |0 < HCLK <= 20 | |
mbed_official | 87:085cde657901 | 213 | |---------------|----------------|----------------|-----------------|-----------------| |
mbed_official | 87:085cde657901 | 214 | |1WS(2CPU cycle)|30 < HCLK <= 60 |24 < HCLK <= 48 |22 < HCLK <= 44 |20 < HCLK <= 40 | |
mbed_official | 87:085cde657901 | 215 | |---------------|----------------|----------------|-----------------|-----------------| |
mbed_official | 87:085cde657901 | 216 | |2WS(3CPU cycle)|60 < HCLK <= 90 |48 < HCLK <= 72 |44 < HCLK <= 66 |40 < HCLK <= 60 | |
mbed_official | 87:085cde657901 | 217 | |---------------|----------------|----------------|-----------------|-----------------| |
mbed_official | 87:085cde657901 | 218 | |3WS(4CPU cycle)|90 < HCLK <= 120|72 < HCLK <= 96 |66 < HCLK <= 88 |60 < HCLK <= 80 | |
mbed_official | 87:085cde657901 | 219 | |---------------|----------------|----------------|-----------------|-----------------| |
mbed_official | 87:085cde657901 | 220 | |4WS(5CPU cycle)|120< HCLK <= 150|96 < HCLK <= 120|88 < HCLK <= 110 |80 < HCLK <= 100 | |
mbed_official | 87:085cde657901 | 221 | |---------------|----------------|----------------|-----------------|-----------------| |
mbed_official | 87:085cde657901 | 222 | |5WS(6CPU cycle)|150< HCLK <= 180|120< HCLK <= 144|110 < HCLK <= 132|100 < HCLK <= 120| |
mbed_official | 87:085cde657901 | 223 | |---------------|----------------|----------------|-----------------|-----------------| |
mbed_official | 87:085cde657901 | 224 | |6WS(7CPU cycle)| NA |144< HCLK <= 168|132 < HCLK <= 154|120 < HCLK <= 140| |
mbed_official | 87:085cde657901 | 225 | |---------------|----------------|----------------|-----------------|-----------------| |
mbed_official | 87:085cde657901 | 226 | |7WS(8CPU cycle)| NA |168< HCLK <= 180|154 < HCLK <= 176|140 < HCLK <= 160| |
mbed_official | 87:085cde657901 | 227 | |-------------------------------------------------------------------------------------| |
mbed_official | 87:085cde657901 | 228 | |8WS(9CPU cycle)| NA | NA |176 < HCLK <= 180|160 < HCLK <= 180| |
mbed_official | 87:085cde657901 | 229 | +-------------------------------------------------------------------------------------+ |
mbed_official | 87:085cde657901 | 230 | (#) For the STM32F401xx, the maximum frequency of the SYSCLK and HCLK is 84 MHz, |
mbed_official | 87:085cde657901 | 231 | PCLK2 84 MHz and PCLK1 42 MHz. |
mbed_official | 87:085cde657901 | 232 | Depending on the device voltage range, the maximum frequency should |
mbed_official | 87:085cde657901 | 233 | be adapted accordingly: |
mbed_official | 87:085cde657901 | 234 | +-------------------------------------------------------------------------------------+ |
mbed_official | 87:085cde657901 | 235 | | Latency | HCLK clock frequency (MHz) | |
mbed_official | 87:085cde657901 | 236 | | |---------------------------------------------------------------------| |
mbed_official | 87:085cde657901 | 237 | | | voltage range | voltage range | voltage range | voltage range | |
mbed_official | 87:085cde657901 | 238 | | | 2.7 V - 3.6 V | 2.4 V - 2.7 V | 2.1 V - 2.4 V | 1.8 V - 2.1 V | |
mbed_official | 87:085cde657901 | 239 | |---------------|----------------|----------------|-----------------|-----------------| |
mbed_official | 87:085cde657901 | 240 | |0WS(1CPU cycle)|0 < HCLK <= 30 |0 < HCLK <= 24 |0 < HCLK <= 22 |0 < HCLK <= 20 | |
mbed_official | 87:085cde657901 | 241 | |---------------|----------------|----------------|-----------------|-----------------| |
mbed_official | 87:085cde657901 | 242 | |1WS(2CPU cycle)|30 < HCLK <= 60 |24 < HCLK <= 48 |22 < HCLK <= 44 |20 < HCLK <= 40 | |
mbed_official | 87:085cde657901 | 243 | |---------------|----------------|----------------|-----------------|-----------------| |
mbed_official | 87:085cde657901 | 244 | |2WS(3CPU cycle)|60 < HCLK <= 84 |48 < HCLK <= 72 |44 < HCLK <= 66 |40 < HCLK <= 60 | |
mbed_official | 87:085cde657901 | 245 | |---------------|----------------|----------------|-----------------|-----------------| |
mbed_official | 87:085cde657901 | 246 | |3WS(4CPU cycle)| NA |72 < HCLK <= 84 |66 < HCLK <= 84 |60 < HCLK <= 80 | |
mbed_official | 87:085cde657901 | 247 | |---------------|----------------|----------------|-----------------|-----------------| |
mbed_official | 87:085cde657901 | 248 | |4WS(5CPU cycle)| NA | NA | NA |80 < HCLK <= 84 | |
mbed_official | 87:085cde657901 | 249 | +-------------------------------------------------------------------------------------+ |
mbed_official | 87:085cde657901 | 250 | @endverbatim |
mbed_official | 87:085cde657901 | 251 | * @{ |
mbed_official | 87:085cde657901 | 252 | */ |
mbed_official | 87:085cde657901 | 253 | |
mbed_official | 87:085cde657901 | 254 | /** |
mbed_official | 87:085cde657901 | 255 | * @brief Resets the RCC clock configuration to the default reset state. |
mbed_official | 87:085cde657901 | 256 | * @note The default reset state of the clock configuration is given below: |
mbed_official | 87:085cde657901 | 257 | * - HSI ON and used as system clock source |
mbed_official | 87:085cde657901 | 258 | * - HSE, PLL and PLLI2S OFF |
mbed_official | 87:085cde657901 | 259 | * - AHB, APB1 and APB2 prescaler set to 1. |
mbed_official | 87:085cde657901 | 260 | * - CSS, MCO1 and MCO2 OFF |
mbed_official | 87:085cde657901 | 261 | * - All interrupts disabled |
mbed_official | 87:085cde657901 | 262 | * @note This function doesn't modify the configuration of the |
mbed_official | 87:085cde657901 | 263 | * - Peripheral clocks |
mbed_official | 87:085cde657901 | 264 | * - LSI, LSE and RTC clocks |
mbed_official | 87:085cde657901 | 265 | * @param None |
mbed_official | 87:085cde657901 | 266 | * @retval None |
mbed_official | 87:085cde657901 | 267 | */ |
mbed_official | 87:085cde657901 | 268 | void HAL_RCC_DeInit(void) |
mbed_official | 87:085cde657901 | 269 | { |
mbed_official | 87:085cde657901 | 270 | /* Set HSION bit */ |
mbed_official | 87:085cde657901 | 271 | SET_BIT(RCC->CR, RCC_CR_HSION | RCC_CR_HSITRIM_4); |
mbed_official | 87:085cde657901 | 272 | |
mbed_official | 87:085cde657901 | 273 | /* Reset CFGR register */ |
mbed_official | 87:085cde657901 | 274 | CLEAR_REG(RCC->CFGR); |
mbed_official | 87:085cde657901 | 275 | |
mbed_official | 87:085cde657901 | 276 | /* Reset HSEON, CSSON, PLLON, PLLI2S */ |
mbed_official | 87:085cde657901 | 277 | CLEAR_BIT(RCC->CR, RCC_CR_HSEON | RCC_CR_CSSON | RCC_CR_PLLON| RCC_CR_PLLI2SON); |
mbed_official | 87:085cde657901 | 278 | |
mbed_official | 87:085cde657901 | 279 | /* Reset PLLCFGR register */ |
mbed_official | 87:085cde657901 | 280 | CLEAR_REG(RCC->PLLCFGR); |
mbed_official | 87:085cde657901 | 281 | SET_BIT(RCC->PLLCFGR, RCC_PLLCFGR_PLLM_4 | RCC_PLLCFGR_PLLN_6 | RCC_PLLCFGR_PLLN_7 | RCC_PLLCFGR_PLLQ_2); |
mbed_official | 87:085cde657901 | 282 | |
mbed_official | 87:085cde657901 | 283 | /* Reset PLLI2SCFGR register */ |
mbed_official | 87:085cde657901 | 284 | CLEAR_REG(RCC->PLLI2SCFGR); |
mbed_official | 87:085cde657901 | 285 | SET_BIT(RCC->PLLI2SCFGR, RCC_PLLI2SCFGR_PLLI2SN_6 | RCC_PLLI2SCFGR_PLLI2SN_7 | RCC_PLLI2SCFGR_PLLI2SR_1); |
mbed_official | 87:085cde657901 | 286 | |
mbed_official | 87:085cde657901 | 287 | /* Reset HSEBYP bit */ |
mbed_official | 87:085cde657901 | 288 | CLEAR_BIT(RCC->CR, RCC_CR_HSEBYP); |
mbed_official | 87:085cde657901 | 289 | |
mbed_official | 87:085cde657901 | 290 | /* Disable all interrupts */ |
mbed_official | 87:085cde657901 | 291 | CLEAR_REG(RCC->CIR); |
mbed_official | 87:085cde657901 | 292 | } |
mbed_official | 87:085cde657901 | 293 | |
mbed_official | 87:085cde657901 | 294 | /** |
mbed_official | 87:085cde657901 | 295 | * @brief Initializes the RCC Oscillators according to the specified parameters in the |
mbed_official | 87:085cde657901 | 296 | * RCC_OscInitTypeDef. |
mbed_official | 87:085cde657901 | 297 | * @param RCC_OscInitStruct: pointer to an RCC_OscInitTypeDef structure that |
mbed_official | 87:085cde657901 | 298 | * contains the configuration information for the RCC Oscillators. |
mbed_official | 87:085cde657901 | 299 | * @note The PLL is not disabled when used as system clock. |
mbed_official | 87:085cde657901 | 300 | * @retval HAL status |
mbed_official | 87:085cde657901 | 301 | */ |
mbed_official | 87:085cde657901 | 302 | HAL_StatusTypeDef HAL_RCC_OscConfig(RCC_OscInitTypeDef *RCC_OscInitStruct) |
mbed_official | 87:085cde657901 | 303 | { |
mbed_official | 87:085cde657901 | 304 | |
mbed_official | 87:085cde657901 | 305 | uint32_t timeout = 0; |
mbed_official | 87:085cde657901 | 306 | |
mbed_official | 87:085cde657901 | 307 | /* Check the parameters */ |
mbed_official | 87:085cde657901 | 308 | assert_param(IS_RCC_OSCILLATORTYPE(RCC_OscInitStruct->OscillatorType)); |
mbed_official | 87:085cde657901 | 309 | /*------------------------------- HSE Configuration ------------------------*/ |
mbed_official | 87:085cde657901 | 310 | if(((RCC_OscInitStruct->OscillatorType) & RCC_OSCILLATORTYPE_HSE) == RCC_OSCILLATORTYPE_HSE) |
mbed_official | 87:085cde657901 | 311 | { |
mbed_official | 87:085cde657901 | 312 | /* Check the parameters */ |
mbed_official | 87:085cde657901 | 313 | assert_param(IS_RCC_HSE(RCC_OscInitStruct->HSEState)); |
mbed_official | 87:085cde657901 | 314 | /* When the HSE is used as system clock or clock source for PLL in these cases HSE will not disabled */ |
mbed_official | 87:085cde657901 | 315 | if((__HAL_RCC_GET_SYSCLK_SOURCE() == RCC_CFGR_SWS_HSE) || ((__HAL_RCC_GET_SYSCLK_SOURCE() == RCC_CFGR_SWS_PLL) && ((RCC->PLLCFGR & RCC_PLLCFGR_PLLSRC) == RCC_PLLCFGR_PLLSRC_HSE))) |
mbed_official | 87:085cde657901 | 316 | { |
mbed_official | 87:085cde657901 | 317 | if((__HAL_RCC_GET_FLAG(RCC_FLAG_HSERDY) != RESET) && (RCC_OscInitStruct->HSEState != RCC_HSE_ON)) |
mbed_official | 87:085cde657901 | 318 | { |
mbed_official | 87:085cde657901 | 319 | return HAL_ERROR; |
mbed_official | 87:085cde657901 | 320 | } |
mbed_official | 87:085cde657901 | 321 | } |
mbed_official | 87:085cde657901 | 322 | else |
mbed_official | 87:085cde657901 | 323 | { |
mbed_official | 87:085cde657901 | 324 | /* Reset HSEON and HSEBYP bits before configuring the HSE --------------*/ |
mbed_official | 87:085cde657901 | 325 | __HAL_RCC_HSE_CONFIG(RCC_HSE_OFF); |
mbed_official | 87:085cde657901 | 326 | |
mbed_official | 87:085cde657901 | 327 | /* Get timeout */ |
mbed_official | 87:085cde657901 | 328 | timeout = HAL_GetTick() + HSE_TIMEOUT_VALUE; |
mbed_official | 87:085cde657901 | 329 | |
mbed_official | 87:085cde657901 | 330 | /* Wait till HSE is disabled */ |
mbed_official | 87:085cde657901 | 331 | while(__HAL_RCC_GET_FLAG(RCC_FLAG_HSERDY) != RESET) |
mbed_official | 87:085cde657901 | 332 | { |
mbed_official | 87:085cde657901 | 333 | if(HAL_GetTick() >= timeout) |
mbed_official | 87:085cde657901 | 334 | { |
mbed_official | 87:085cde657901 | 335 | return HAL_TIMEOUT; |
mbed_official | 87:085cde657901 | 336 | } |
mbed_official | 87:085cde657901 | 337 | } |
mbed_official | 87:085cde657901 | 338 | |
mbed_official | 87:085cde657901 | 339 | /* Set the new HSE configuration ---------------------------------------*/ |
mbed_official | 87:085cde657901 | 340 | __HAL_RCC_HSE_CONFIG(RCC_OscInitStruct->HSEState); |
mbed_official | 87:085cde657901 | 341 | |
mbed_official | 87:085cde657901 | 342 | /* Check the HSE State */ |
mbed_official | 87:085cde657901 | 343 | if((RCC_OscInitStruct->HSEState) == RCC_HSE_ON) |
mbed_official | 87:085cde657901 | 344 | { |
mbed_official | 87:085cde657901 | 345 | /* Get timeout */ |
mbed_official | 87:085cde657901 | 346 | timeout = HAL_GetTick() + HSE_TIMEOUT_VALUE; |
mbed_official | 87:085cde657901 | 347 | |
mbed_official | 87:085cde657901 | 348 | /* Wait till HSE is ready */ |
mbed_official | 87:085cde657901 | 349 | while(__HAL_RCC_GET_FLAG(RCC_FLAG_HSERDY) == RESET) |
mbed_official | 87:085cde657901 | 350 | { |
mbed_official | 87:085cde657901 | 351 | if(HAL_GetTick() >= timeout) |
mbed_official | 87:085cde657901 | 352 | { |
mbed_official | 87:085cde657901 | 353 | return HAL_TIMEOUT; |
mbed_official | 87:085cde657901 | 354 | } |
mbed_official | 87:085cde657901 | 355 | } |
mbed_official | 87:085cde657901 | 356 | } |
mbed_official | 87:085cde657901 | 357 | else |
mbed_official | 87:085cde657901 | 358 | { |
mbed_official | 87:085cde657901 | 359 | /* Get timeout */ |
mbed_official | 87:085cde657901 | 360 | timeout = HAL_GetTick() + HSE_TIMEOUT_VALUE; |
mbed_official | 87:085cde657901 | 361 | |
mbed_official | 87:085cde657901 | 362 | /* Wait till HSE is bypassed or disabled */ |
mbed_official | 87:085cde657901 | 363 | while(__HAL_RCC_GET_FLAG(RCC_FLAG_HSERDY) != RESET) |
mbed_official | 87:085cde657901 | 364 | { |
mbed_official | 87:085cde657901 | 365 | if(HAL_GetTick() >= timeout) |
mbed_official | 87:085cde657901 | 366 | { |
mbed_official | 87:085cde657901 | 367 | return HAL_TIMEOUT; |
mbed_official | 87:085cde657901 | 368 | } |
mbed_official | 87:085cde657901 | 369 | } |
mbed_official | 87:085cde657901 | 370 | } |
mbed_official | 87:085cde657901 | 371 | } |
mbed_official | 87:085cde657901 | 372 | } |
mbed_official | 87:085cde657901 | 373 | /*----------------------------- HSI Configuration --------------------------*/ |
mbed_official | 87:085cde657901 | 374 | if(((RCC_OscInitStruct->OscillatorType) & RCC_OSCILLATORTYPE_HSI) == RCC_OSCILLATORTYPE_HSI) |
mbed_official | 87:085cde657901 | 375 | { |
mbed_official | 87:085cde657901 | 376 | /* Check the parameters */ |
mbed_official | 87:085cde657901 | 377 | assert_param(IS_RCC_HSI(RCC_OscInitStruct->HSIState)); |
mbed_official | 87:085cde657901 | 378 | assert_param(IS_RCC_CALIBRATION_VALUE(RCC_OscInitStruct->HSICalibrationValue)); |
mbed_official | 87:085cde657901 | 379 | |
mbed_official | 87:085cde657901 | 380 | /* When the HSI is used as system clock it will not disabled */ |
mbed_official | 87:085cde657901 | 381 | if((__HAL_RCC_GET_SYSCLK_SOURCE() == RCC_CFGR_SWS_HSI) || ((__HAL_RCC_GET_SYSCLK_SOURCE() == RCC_CFGR_SWS_PLL) && ((RCC->PLLCFGR & RCC_PLLCFGR_PLLSRC) == RCC_PLLCFGR_PLLSRC_HSI))) |
mbed_official | 87:085cde657901 | 382 | { |
mbed_official | 87:085cde657901 | 383 | if((__HAL_RCC_GET_FLAG(RCC_FLAG_HSIRDY) != RESET) && (RCC_OscInitStruct->HSIState != RCC_HSI_ON)) |
mbed_official | 87:085cde657901 | 384 | { |
mbed_official | 87:085cde657901 | 385 | return HAL_ERROR; |
mbed_official | 87:085cde657901 | 386 | } |
mbed_official | 87:085cde657901 | 387 | } |
mbed_official | 87:085cde657901 | 388 | else |
mbed_official | 87:085cde657901 | 389 | { |
mbed_official | 87:085cde657901 | 390 | /* Check the HSI State */ |
mbed_official | 87:085cde657901 | 391 | if((RCC_OscInitStruct->HSIState)!= RCC_HSI_OFF) |
mbed_official | 87:085cde657901 | 392 | { |
mbed_official | 87:085cde657901 | 393 | /* Enable the Internal High Speed oscillator (HSI). */ |
mbed_official | 87:085cde657901 | 394 | __HAL_RCC_HSI_ENABLE(); |
mbed_official | 87:085cde657901 | 395 | |
mbed_official | 87:085cde657901 | 396 | /* Get timeout */ |
mbed_official | 87:085cde657901 | 397 | timeout = HAL_GetTick() + HSI_TIMEOUT_VALUE; |
mbed_official | 87:085cde657901 | 398 | |
mbed_official | 87:085cde657901 | 399 | /* Wait till HSI is ready */ |
mbed_official | 87:085cde657901 | 400 | while(__HAL_RCC_GET_FLAG(RCC_FLAG_HSIRDY) == RESET) |
mbed_official | 87:085cde657901 | 401 | { |
mbed_official | 87:085cde657901 | 402 | if(HAL_GetTick() >= timeout) |
mbed_official | 87:085cde657901 | 403 | { |
mbed_official | 87:085cde657901 | 404 | return HAL_TIMEOUT; |
mbed_official | 87:085cde657901 | 405 | } |
mbed_official | 87:085cde657901 | 406 | } |
mbed_official | 87:085cde657901 | 407 | |
mbed_official | 87:085cde657901 | 408 | /* Adjusts the Internal High Speed oscillator (HSI) calibration value.*/ |
mbed_official | 87:085cde657901 | 409 | __HAL_RCC_HSI_CALIBRATIONVALUE_ADJUST(RCC_OscInitStruct->HSICalibrationValue); |
mbed_official | 87:085cde657901 | 410 | } |
mbed_official | 87:085cde657901 | 411 | else |
mbed_official | 87:085cde657901 | 412 | { |
mbed_official | 87:085cde657901 | 413 | /* Disable the Internal High Speed oscillator (HSI). */ |
mbed_official | 87:085cde657901 | 414 | __HAL_RCC_HSI_DISABLE(); |
mbed_official | 87:085cde657901 | 415 | |
mbed_official | 87:085cde657901 | 416 | /* Get timeout */ |
mbed_official | 87:085cde657901 | 417 | timeout = HAL_GetTick() + HSI_TIMEOUT_VALUE; |
mbed_official | 87:085cde657901 | 418 | |
mbed_official | 87:085cde657901 | 419 | /* Wait till HSI is ready */ |
mbed_official | 87:085cde657901 | 420 | while(__HAL_RCC_GET_FLAG(RCC_FLAG_HSIRDY) != RESET) |
mbed_official | 87:085cde657901 | 421 | { |
mbed_official | 87:085cde657901 | 422 | if(HAL_GetTick() >= timeout) |
mbed_official | 87:085cde657901 | 423 | { |
mbed_official | 87:085cde657901 | 424 | return HAL_TIMEOUT; |
mbed_official | 87:085cde657901 | 425 | } |
mbed_official | 87:085cde657901 | 426 | } |
mbed_official | 87:085cde657901 | 427 | } |
mbed_official | 87:085cde657901 | 428 | } |
mbed_official | 87:085cde657901 | 429 | } |
mbed_official | 87:085cde657901 | 430 | /*------------------------------ LSI Configuration -------------------------*/ |
mbed_official | 87:085cde657901 | 431 | if(((RCC_OscInitStruct->OscillatorType) & RCC_OSCILLATORTYPE_LSI) == RCC_OSCILLATORTYPE_LSI) |
mbed_official | 87:085cde657901 | 432 | { |
mbed_official | 87:085cde657901 | 433 | /* Check the parameters */ |
mbed_official | 87:085cde657901 | 434 | assert_param(IS_RCC_LSI(RCC_OscInitStruct->LSIState)); |
mbed_official | 87:085cde657901 | 435 | |
mbed_official | 87:085cde657901 | 436 | /* Check the LSI State */ |
mbed_official | 87:085cde657901 | 437 | if((RCC_OscInitStruct->LSIState)!= RCC_LSI_OFF) |
mbed_official | 87:085cde657901 | 438 | { |
mbed_official | 87:085cde657901 | 439 | /* Enable the Internal Low Speed oscillator (LSI). */ |
mbed_official | 87:085cde657901 | 440 | __HAL_RCC_LSI_ENABLE(); |
mbed_official | 87:085cde657901 | 441 | |
mbed_official | 87:085cde657901 | 442 | /* Get timeout */ |
mbed_official | 87:085cde657901 | 443 | timeout = HAL_GetTick() + LSI_TIMEOUT_VALUE; |
mbed_official | 87:085cde657901 | 444 | |
mbed_official | 87:085cde657901 | 445 | /* Wait till LSI is ready */ |
mbed_official | 87:085cde657901 | 446 | while(__HAL_RCC_GET_FLAG(RCC_FLAG_LSIRDY) == RESET) |
mbed_official | 87:085cde657901 | 447 | { |
mbed_official | 87:085cde657901 | 448 | if(HAL_GetTick() >= timeout) |
mbed_official | 87:085cde657901 | 449 | { |
mbed_official | 87:085cde657901 | 450 | return HAL_TIMEOUT; |
mbed_official | 87:085cde657901 | 451 | } |
mbed_official | 87:085cde657901 | 452 | } |
mbed_official | 87:085cde657901 | 453 | } |
mbed_official | 87:085cde657901 | 454 | else |
mbed_official | 87:085cde657901 | 455 | { |
mbed_official | 87:085cde657901 | 456 | /* Disable the Internal Low Speed oscillator (LSI). */ |
mbed_official | 87:085cde657901 | 457 | __HAL_RCC_LSI_DISABLE(); |
mbed_official | 87:085cde657901 | 458 | |
mbed_official | 87:085cde657901 | 459 | /* Get timeout */ |
mbed_official | 87:085cde657901 | 460 | timeout = HAL_GetTick() + LSI_TIMEOUT_VALUE; |
mbed_official | 87:085cde657901 | 461 | |
mbed_official | 87:085cde657901 | 462 | /* Wait till LSI is ready */ |
mbed_official | 87:085cde657901 | 463 | while(__HAL_RCC_GET_FLAG(RCC_FLAG_LSIRDY) != RESET) |
mbed_official | 87:085cde657901 | 464 | { |
mbed_official | 87:085cde657901 | 465 | if(HAL_GetTick() >= timeout) |
mbed_official | 87:085cde657901 | 466 | { |
mbed_official | 87:085cde657901 | 467 | return HAL_TIMEOUT; |
mbed_official | 87:085cde657901 | 468 | } |
mbed_official | 87:085cde657901 | 469 | } |
mbed_official | 87:085cde657901 | 470 | } |
mbed_official | 87:085cde657901 | 471 | } |
mbed_official | 87:085cde657901 | 472 | /*------------------------------ LSE Configuration -------------------------*/ |
mbed_official | 87:085cde657901 | 473 | if(((RCC_OscInitStruct->OscillatorType) & RCC_OSCILLATORTYPE_LSE) == RCC_OSCILLATORTYPE_LSE) |
mbed_official | 87:085cde657901 | 474 | { |
mbed_official | 87:085cde657901 | 475 | /* Check the parameters */ |
mbed_official | 87:085cde657901 | 476 | assert_param(IS_RCC_LSE(RCC_OscInitStruct->LSEState)); |
mbed_official | 87:085cde657901 | 477 | |
mbed_official | 106:ced8cbb51063 | 478 | /* Enable Power Clock*/ |
mbed_official | 106:ced8cbb51063 | 479 | __PWR_CLK_ENABLE(); |
mbed_official | 106:ced8cbb51063 | 480 | |
mbed_official | 106:ced8cbb51063 | 481 | /* Enable write access to Backup domain */ |
mbed_official | 106:ced8cbb51063 | 482 | PWR->CR |= PWR_CR_DBP; |
mbed_official | 106:ced8cbb51063 | 483 | |
mbed_official | 106:ced8cbb51063 | 484 | /* Wait for Backup domain Write protection disable */ |
mbed_official | 106:ced8cbb51063 | 485 | timeout = HAL_GetTick() + DBP_TIMEOUT_VALUE; |
mbed_official | 106:ced8cbb51063 | 486 | |
mbed_official | 106:ced8cbb51063 | 487 | while((PWR->CR & PWR_CR_DBP) == RESET) |
mbed_official | 87:085cde657901 | 488 | { |
mbed_official | 106:ced8cbb51063 | 489 | if(HAL_GetTick() >= timeout) |
mbed_official | 106:ced8cbb51063 | 490 | { |
mbed_official | 106:ced8cbb51063 | 491 | return HAL_TIMEOUT; |
mbed_official | 106:ced8cbb51063 | 492 | } |
mbed_official | 87:085cde657901 | 493 | } |
mbed_official | 106:ced8cbb51063 | 494 | |
mbed_official | 87:085cde657901 | 495 | /* Reset LSEON and LSEBYP bits before configuring the LSE ----------------*/ |
mbed_official | 87:085cde657901 | 496 | __HAL_RCC_LSE_CONFIG(RCC_LSE_OFF); |
mbed_official | 87:085cde657901 | 497 | |
mbed_official | 87:085cde657901 | 498 | /* Get timeout */ |
mbed_official | 87:085cde657901 | 499 | timeout = HAL_GetTick() + LSE_TIMEOUT_VALUE; |
mbed_official | 87:085cde657901 | 500 | |
mbed_official | 87:085cde657901 | 501 | /* Wait till LSE is ready */ |
mbed_official | 87:085cde657901 | 502 | while(__HAL_RCC_GET_FLAG(RCC_FLAG_LSERDY) != RESET) |
mbed_official | 87:085cde657901 | 503 | { |
mbed_official | 87:085cde657901 | 504 | if(HAL_GetTick() >= timeout) |
mbed_official | 87:085cde657901 | 505 | { |
mbed_official | 87:085cde657901 | 506 | return HAL_TIMEOUT; |
mbed_official | 87:085cde657901 | 507 | } |
mbed_official | 87:085cde657901 | 508 | } |
mbed_official | 87:085cde657901 | 509 | |
mbed_official | 87:085cde657901 | 510 | /* Set the new LSE configuration -----------------------------------------*/ |
mbed_official | 87:085cde657901 | 511 | __HAL_RCC_LSE_CONFIG(RCC_OscInitStruct->LSEState); |
mbed_official | 87:085cde657901 | 512 | /* Check the LSE State */ |
mbed_official | 87:085cde657901 | 513 | if((RCC_OscInitStruct->LSEState) == RCC_LSE_ON) |
mbed_official | 87:085cde657901 | 514 | { |
mbed_official | 87:085cde657901 | 515 | /* Get timeout */ |
mbed_official | 87:085cde657901 | 516 | timeout = HAL_GetTick() + LSE_TIMEOUT_VALUE; |
mbed_official | 87:085cde657901 | 517 | |
mbed_official | 87:085cde657901 | 518 | /* Wait till LSE is ready */ |
mbed_official | 87:085cde657901 | 519 | while(__HAL_RCC_GET_FLAG(RCC_FLAG_LSERDY) == RESET) |
mbed_official | 87:085cde657901 | 520 | { |
mbed_official | 87:085cde657901 | 521 | if(HAL_GetTick() >= timeout) |
mbed_official | 87:085cde657901 | 522 | { |
mbed_official | 87:085cde657901 | 523 | return HAL_TIMEOUT; |
mbed_official | 87:085cde657901 | 524 | } |
mbed_official | 87:085cde657901 | 525 | } |
mbed_official | 87:085cde657901 | 526 | } |
mbed_official | 87:085cde657901 | 527 | else |
mbed_official | 87:085cde657901 | 528 | { |
mbed_official | 87:085cde657901 | 529 | /* Get timeout */ |
mbed_official | 87:085cde657901 | 530 | timeout = HAL_GetTick() + LSE_TIMEOUT_VALUE; |
mbed_official | 87:085cde657901 | 531 | |
mbed_official | 87:085cde657901 | 532 | /* Wait till LSE is ready */ |
mbed_official | 87:085cde657901 | 533 | while(__HAL_RCC_GET_FLAG(RCC_FLAG_LSERDY) != RESET) |
mbed_official | 87:085cde657901 | 534 | { |
mbed_official | 87:085cde657901 | 535 | if(HAL_GetTick() >= timeout) |
mbed_official | 87:085cde657901 | 536 | { |
mbed_official | 87:085cde657901 | 537 | return HAL_TIMEOUT; |
mbed_official | 87:085cde657901 | 538 | } |
mbed_official | 87:085cde657901 | 539 | } |
mbed_official | 87:085cde657901 | 540 | } |
mbed_official | 87:085cde657901 | 541 | } |
mbed_official | 87:085cde657901 | 542 | /*-------------------------------- PLL Configuration -----------------------*/ |
mbed_official | 87:085cde657901 | 543 | /* Check the parameters */ |
mbed_official | 87:085cde657901 | 544 | assert_param(IS_RCC_PLL(RCC_OscInitStruct->PLL.PLLState)); |
mbed_official | 87:085cde657901 | 545 | if ((RCC_OscInitStruct->PLL.PLLState) != RCC_PLL_NONE) |
mbed_official | 87:085cde657901 | 546 | { |
mbed_official | 87:085cde657901 | 547 | /* Check if the PLL is used as system clock or not */ |
mbed_official | 87:085cde657901 | 548 | if(__HAL_RCC_GET_SYSCLK_SOURCE() != RCC_CFGR_SWS_PLL) |
mbed_official | 87:085cde657901 | 549 | { |
mbed_official | 87:085cde657901 | 550 | if((RCC_OscInitStruct->PLL.PLLState) == RCC_PLL_ON) |
mbed_official | 87:085cde657901 | 551 | { |
mbed_official | 87:085cde657901 | 552 | /* Check the parameters */ |
mbed_official | 87:085cde657901 | 553 | assert_param(IS_RCC_PLLSOURCE(RCC_OscInitStruct->PLL.PLLSource)); |
mbed_official | 87:085cde657901 | 554 | assert_param(IS_RCC_PLLM_VALUE(RCC_OscInitStruct->PLL.PLLM)); |
mbed_official | 87:085cde657901 | 555 | assert_param(IS_RCC_PLLN_VALUE(RCC_OscInitStruct->PLL.PLLN)); |
mbed_official | 87:085cde657901 | 556 | assert_param(IS_RCC_PLLP_VALUE(RCC_OscInitStruct->PLL.PLLP)); |
mbed_official | 87:085cde657901 | 557 | assert_param(IS_RCC_PLLQ_VALUE(RCC_OscInitStruct->PLL.PLLQ)); |
mbed_official | 87:085cde657901 | 558 | |
mbed_official | 87:085cde657901 | 559 | /* Disable the main PLL. */ |
mbed_official | 87:085cde657901 | 560 | __HAL_RCC_PLL_DISABLE(); |
mbed_official | 87:085cde657901 | 561 | |
mbed_official | 87:085cde657901 | 562 | /* Get timeout */ |
mbed_official | 87:085cde657901 | 563 | timeout = HAL_GetTick() + PLL_TIMEOUT_VALUE; |
mbed_official | 87:085cde657901 | 564 | |
mbed_official | 87:085cde657901 | 565 | /* Wait till PLL is ready */ |
mbed_official | 87:085cde657901 | 566 | while(__HAL_RCC_GET_FLAG(RCC_FLAG_PLLRDY) != RESET) |
mbed_official | 87:085cde657901 | 567 | { |
mbed_official | 87:085cde657901 | 568 | if(HAL_GetTick() >= timeout) |
mbed_official | 87:085cde657901 | 569 | { |
mbed_official | 87:085cde657901 | 570 | return HAL_TIMEOUT; |
mbed_official | 87:085cde657901 | 571 | } |
mbed_official | 87:085cde657901 | 572 | } |
mbed_official | 87:085cde657901 | 573 | |
mbed_official | 87:085cde657901 | 574 | /* Configure the main PLL clock source, multiplication and division factors. */ |
mbed_official | 87:085cde657901 | 575 | __HAL_RCC_PLL_CONFIG(RCC_OscInitStruct->PLL.PLLSource, |
mbed_official | 87:085cde657901 | 576 | RCC_OscInitStruct->PLL.PLLM, |
mbed_official | 87:085cde657901 | 577 | RCC_OscInitStruct->PLL.PLLN, |
mbed_official | 87:085cde657901 | 578 | RCC_OscInitStruct->PLL.PLLP, |
mbed_official | 87:085cde657901 | 579 | RCC_OscInitStruct->PLL.PLLQ); |
mbed_official | 87:085cde657901 | 580 | /* Enable the main PLL. */ |
mbed_official | 87:085cde657901 | 581 | __HAL_RCC_PLL_ENABLE(); |
mbed_official | 87:085cde657901 | 582 | |
mbed_official | 87:085cde657901 | 583 | /* Get timeout */ |
mbed_official | 87:085cde657901 | 584 | timeout = HAL_GetTick() + PLL_TIMEOUT_VALUE; |
mbed_official | 87:085cde657901 | 585 | |
mbed_official | 87:085cde657901 | 586 | /* Wait till PLL is ready */ |
mbed_official | 87:085cde657901 | 587 | while(__HAL_RCC_GET_FLAG(RCC_FLAG_PLLRDY) == RESET) |
mbed_official | 87:085cde657901 | 588 | { |
mbed_official | 87:085cde657901 | 589 | if(HAL_GetTick() >= timeout) |
mbed_official | 87:085cde657901 | 590 | { |
mbed_official | 87:085cde657901 | 591 | return HAL_TIMEOUT; |
mbed_official | 87:085cde657901 | 592 | } |
mbed_official | 87:085cde657901 | 593 | } |
mbed_official | 87:085cde657901 | 594 | } |
mbed_official | 87:085cde657901 | 595 | else |
mbed_official | 87:085cde657901 | 596 | { |
mbed_official | 87:085cde657901 | 597 | /* Disable the main PLL. */ |
mbed_official | 87:085cde657901 | 598 | __HAL_RCC_PLL_DISABLE(); |
mbed_official | 87:085cde657901 | 599 | /* Get timeout */ |
mbed_official | 87:085cde657901 | 600 | timeout = HAL_GetTick() + PLL_TIMEOUT_VALUE; |
mbed_official | 87:085cde657901 | 601 | |
mbed_official | 87:085cde657901 | 602 | /* Wait till PLL is ready */ |
mbed_official | 87:085cde657901 | 603 | while(__HAL_RCC_GET_FLAG(RCC_FLAG_PLLRDY) != RESET) |
mbed_official | 87:085cde657901 | 604 | { |
mbed_official | 87:085cde657901 | 605 | if(HAL_GetTick() >= timeout) |
mbed_official | 87:085cde657901 | 606 | { |
mbed_official | 87:085cde657901 | 607 | return HAL_TIMEOUT; |
mbed_official | 87:085cde657901 | 608 | } |
mbed_official | 87:085cde657901 | 609 | } |
mbed_official | 87:085cde657901 | 610 | } |
mbed_official | 87:085cde657901 | 611 | } |
mbed_official | 87:085cde657901 | 612 | else |
mbed_official | 87:085cde657901 | 613 | { |
mbed_official | 87:085cde657901 | 614 | return HAL_ERROR; |
mbed_official | 87:085cde657901 | 615 | } |
mbed_official | 87:085cde657901 | 616 | } |
mbed_official | 87:085cde657901 | 617 | return HAL_OK; |
mbed_official | 87:085cde657901 | 618 | } |
mbed_official | 87:085cde657901 | 619 | |
mbed_official | 87:085cde657901 | 620 | /** |
mbed_official | 87:085cde657901 | 621 | * @brief Initializes the CPU, AHB and APB busses clocks according to the specified |
mbed_official | 87:085cde657901 | 622 | * parameters in the RCC_ClkInitStruct. |
mbed_official | 87:085cde657901 | 623 | * @param RCC_ClkInitStruct: pointer to an RCC_OscInitTypeDef structure that |
mbed_official | 87:085cde657901 | 624 | * contains the configuration information for the RCC peripheral. |
mbed_official | 87:085cde657901 | 625 | * @param FLatency: FLASH Latency, this parameter depend on device selected |
mbed_official | 87:085cde657901 | 626 | * |
mbed_official | 87:085cde657901 | 627 | * @note The SystemCoreClock CMSIS variable is used to store System Clock Frequency |
mbed_official | 87:085cde657901 | 628 | * and updated by HAL_RCC_GetHCLKFreq() function called within this function |
mbed_official | 87:085cde657901 | 629 | * |
mbed_official | 87:085cde657901 | 630 | * @note The HSI is used (enabled by hardware) as system clock source after |
mbed_official | 87:085cde657901 | 631 | * startup from Reset, wake-up from STOP and STANDBY mode, or in case |
mbed_official | 87:085cde657901 | 632 | * of failure of the HSE used directly or indirectly as system clock |
mbed_official | 87:085cde657901 | 633 | * (if the Clock Security System CSS is enabled). |
mbed_official | 87:085cde657901 | 634 | * |
mbed_official | 87:085cde657901 | 635 | * @note A switch from one clock source to another occurs only if the target |
mbed_official | 87:085cde657901 | 636 | * clock source is ready (clock stable after startup delay or PLL locked). |
mbed_official | 87:085cde657901 | 637 | * If a clock source which is not yet ready is selected, the switch will |
mbed_official | 87:085cde657901 | 638 | * occur when the clock source will be ready. |
mbed_official | 87:085cde657901 | 639 | * |
mbed_official | 87:085cde657901 | 640 | * @note Depending on the device voltage range, the software has to set correctly |
mbed_official | 87:085cde657901 | 641 | * HPRE[3:0] bits to ensure that HCLK not exceed the maximum allowed frequency |
mbed_official | 87:085cde657901 | 642 | * (for more details refer to section above "Initialization/de-initialization functions") |
mbed_official | 87:085cde657901 | 643 | * @retval None |
mbed_official | 87:085cde657901 | 644 | */ |
mbed_official | 87:085cde657901 | 645 | HAL_StatusTypeDef HAL_RCC_ClockConfig(RCC_ClkInitTypeDef *RCC_ClkInitStruct, uint32_t FLatency) |
mbed_official | 87:085cde657901 | 646 | { |
mbed_official | 87:085cde657901 | 647 | |
mbed_official | 87:085cde657901 | 648 | uint32_t timeout = 0; |
mbed_official | 87:085cde657901 | 649 | |
mbed_official | 87:085cde657901 | 650 | /* Check the parameters */ |
mbed_official | 87:085cde657901 | 651 | assert_param(IS_RCC_CLOCKTYPE(RCC_ClkInitStruct->ClockType)); |
mbed_official | 87:085cde657901 | 652 | assert_param(IS_FLASH_LATENCY(FLatency)); |
mbed_official | 87:085cde657901 | 653 | |
mbed_official | 87:085cde657901 | 654 | /* To correctly read data from FLASH memory, the number of wait states (LATENCY) |
mbed_official | 87:085cde657901 | 655 | must be correctly programmed according to the frequency of the CPU clock |
mbed_official | 87:085cde657901 | 656 | (HCLK) and the supply voltage of the device. */ |
mbed_official | 87:085cde657901 | 657 | |
mbed_official | 87:085cde657901 | 658 | /* Increasing the CPU frequency */ |
mbed_official | 87:085cde657901 | 659 | if(FLatency > (FLASH->ACR & FLASH_ACR_LATENCY)) |
mbed_official | 87:085cde657901 | 660 | { |
mbed_official | 87:085cde657901 | 661 | /* Program the new number of wait states to the LATENCY bits in the FLASH_ACR register */ |
mbed_official | 87:085cde657901 | 662 | __HAL_FLASH_SET_LATENCY(FLatency); |
mbed_official | 87:085cde657901 | 663 | |
mbed_official | 87:085cde657901 | 664 | /* Check that the new number of wait states is taken into account to access the Flash |
mbed_official | 87:085cde657901 | 665 | memory by reading the FLASH_ACR register */ |
mbed_official | 87:085cde657901 | 666 | if((FLASH->ACR & FLASH_ACR_LATENCY) != FLatency) |
mbed_official | 87:085cde657901 | 667 | { |
mbed_official | 87:085cde657901 | 668 | return HAL_ERROR; |
mbed_official | 87:085cde657901 | 669 | } |
mbed_official | 87:085cde657901 | 670 | |
mbed_official | 87:085cde657901 | 671 | /*------------------------- SYSCLK Configuration ---------------------------*/ |
mbed_official | 87:085cde657901 | 672 | if(((RCC_ClkInitStruct->ClockType) & RCC_CLOCKTYPE_SYSCLK) == RCC_CLOCKTYPE_SYSCLK) |
mbed_official | 87:085cde657901 | 673 | { |
mbed_official | 87:085cde657901 | 674 | assert_param(IS_RCC_SYSCLKSOURCE(RCC_ClkInitStruct->SYSCLKSource)); |
mbed_official | 87:085cde657901 | 675 | |
mbed_official | 87:085cde657901 | 676 | /* HSE is selected as System Clock Source */ |
mbed_official | 87:085cde657901 | 677 | if(RCC_ClkInitStruct->SYSCLKSource == RCC_SYSCLKSOURCE_HSE) |
mbed_official | 87:085cde657901 | 678 | { |
mbed_official | 87:085cde657901 | 679 | /* Check the HSE ready flag */ |
mbed_official | 87:085cde657901 | 680 | if(__HAL_RCC_GET_FLAG(RCC_FLAG_HSERDY) == RESET) |
mbed_official | 87:085cde657901 | 681 | { |
mbed_official | 87:085cde657901 | 682 | return HAL_ERROR; |
mbed_official | 87:085cde657901 | 683 | } |
mbed_official | 87:085cde657901 | 684 | } |
mbed_official | 87:085cde657901 | 685 | /* PLL is selected as System Clock Source */ |
mbed_official | 87:085cde657901 | 686 | else if(RCC_ClkInitStruct->SYSCLKSource == RCC_SYSCLKSOURCE_PLLCLK) |
mbed_official | 87:085cde657901 | 687 | { |
mbed_official | 87:085cde657901 | 688 | /* Check the PLL ready flag */ |
mbed_official | 87:085cde657901 | 689 | if(__HAL_RCC_GET_FLAG(RCC_FLAG_PLLRDY) == RESET) |
mbed_official | 87:085cde657901 | 690 | { |
mbed_official | 87:085cde657901 | 691 | return HAL_ERROR; |
mbed_official | 87:085cde657901 | 692 | } |
mbed_official | 87:085cde657901 | 693 | } |
mbed_official | 87:085cde657901 | 694 | /* HSI is selected as System Clock Source */ |
mbed_official | 87:085cde657901 | 695 | else |
mbed_official | 87:085cde657901 | 696 | { |
mbed_official | 87:085cde657901 | 697 | /* Check the HSI ready flag */ |
mbed_official | 87:085cde657901 | 698 | if(__HAL_RCC_GET_FLAG(RCC_FLAG_HSIRDY) == RESET) |
mbed_official | 87:085cde657901 | 699 | { |
mbed_official | 87:085cde657901 | 700 | return HAL_ERROR; |
mbed_official | 87:085cde657901 | 701 | } |
mbed_official | 87:085cde657901 | 702 | } |
mbed_official | 87:085cde657901 | 703 | MODIFY_REG(RCC->CFGR, RCC_CFGR_SW, RCC_ClkInitStruct->SYSCLKSource); |
mbed_official | 87:085cde657901 | 704 | |
mbed_official | 87:085cde657901 | 705 | /* Get timeout */ |
mbed_official | 87:085cde657901 | 706 | timeout = HAL_GetTick() + CLOCKSWITCH_TIMEOUT_VALUE; |
mbed_official | 87:085cde657901 | 707 | |
mbed_official | 87:085cde657901 | 708 | if(RCC_ClkInitStruct->SYSCLKSource == RCC_SYSCLKSOURCE_HSE) |
mbed_official | 87:085cde657901 | 709 | { |
mbed_official | 87:085cde657901 | 710 | while (__HAL_RCC_GET_SYSCLK_SOURCE() != RCC_CFGR_SWS_HSE) |
mbed_official | 87:085cde657901 | 711 | { |
mbed_official | 87:085cde657901 | 712 | if(HAL_GetTick() >= timeout) |
mbed_official | 87:085cde657901 | 713 | { |
mbed_official | 87:085cde657901 | 714 | return HAL_TIMEOUT; |
mbed_official | 87:085cde657901 | 715 | } |
mbed_official | 87:085cde657901 | 716 | } |
mbed_official | 87:085cde657901 | 717 | } |
mbed_official | 87:085cde657901 | 718 | else if(RCC_ClkInitStruct->SYSCLKSource == RCC_SYSCLKSOURCE_PLLCLK) |
mbed_official | 87:085cde657901 | 719 | { |
mbed_official | 87:085cde657901 | 720 | while (__HAL_RCC_GET_SYSCLK_SOURCE() != RCC_CFGR_SWS_PLL) |
mbed_official | 87:085cde657901 | 721 | { |
mbed_official | 87:085cde657901 | 722 | if(HAL_GetTick() >= timeout) |
mbed_official | 87:085cde657901 | 723 | { |
mbed_official | 87:085cde657901 | 724 | return HAL_TIMEOUT; |
mbed_official | 87:085cde657901 | 725 | } |
mbed_official | 87:085cde657901 | 726 | } |
mbed_official | 87:085cde657901 | 727 | } |
mbed_official | 87:085cde657901 | 728 | else |
mbed_official | 87:085cde657901 | 729 | { |
mbed_official | 87:085cde657901 | 730 | while(__HAL_RCC_GET_SYSCLK_SOURCE() != RCC_CFGR_SWS_HSI) |
mbed_official | 87:085cde657901 | 731 | { |
mbed_official | 87:085cde657901 | 732 | if(HAL_GetTick() >= timeout) |
mbed_official | 87:085cde657901 | 733 | { |
mbed_official | 87:085cde657901 | 734 | return HAL_TIMEOUT; |
mbed_official | 87:085cde657901 | 735 | } |
mbed_official | 87:085cde657901 | 736 | } |
mbed_official | 87:085cde657901 | 737 | } |
mbed_official | 87:085cde657901 | 738 | } |
mbed_official | 87:085cde657901 | 739 | } |
mbed_official | 87:085cde657901 | 740 | /* Decreasing the CPU frequency */ |
mbed_official | 87:085cde657901 | 741 | else |
mbed_official | 87:085cde657901 | 742 | { |
mbed_official | 87:085cde657901 | 743 | /*------------------------- SYSCLK Configuration ---------------------------*/ |
mbed_official | 87:085cde657901 | 744 | if(((RCC_ClkInitStruct->ClockType) & RCC_CLOCKTYPE_SYSCLK) == RCC_CLOCKTYPE_SYSCLK) |
mbed_official | 87:085cde657901 | 745 | { |
mbed_official | 87:085cde657901 | 746 | assert_param(IS_RCC_SYSCLKSOURCE(RCC_ClkInitStruct->SYSCLKSource)); |
mbed_official | 87:085cde657901 | 747 | |
mbed_official | 87:085cde657901 | 748 | /* HSE is selected as System Clock Source */ |
mbed_official | 87:085cde657901 | 749 | if(RCC_ClkInitStruct->SYSCLKSource == RCC_SYSCLKSOURCE_HSE) |
mbed_official | 87:085cde657901 | 750 | { |
mbed_official | 87:085cde657901 | 751 | /* Check the HSE ready flag */ |
mbed_official | 87:085cde657901 | 752 | if(__HAL_RCC_GET_FLAG(RCC_FLAG_HSERDY) == RESET) |
mbed_official | 87:085cde657901 | 753 | { |
mbed_official | 87:085cde657901 | 754 | return HAL_ERROR; |
mbed_official | 87:085cde657901 | 755 | } |
mbed_official | 87:085cde657901 | 756 | } |
mbed_official | 87:085cde657901 | 757 | /* PLL is selected as System Clock Source */ |
mbed_official | 87:085cde657901 | 758 | else if(RCC_ClkInitStruct->SYSCLKSource == RCC_SYSCLKSOURCE_PLLCLK) |
mbed_official | 87:085cde657901 | 759 | { |
mbed_official | 87:085cde657901 | 760 | /* Check the PLL ready flag */ |
mbed_official | 87:085cde657901 | 761 | if(__HAL_RCC_GET_FLAG(RCC_FLAG_PLLRDY) == RESET) |
mbed_official | 87:085cde657901 | 762 | { |
mbed_official | 87:085cde657901 | 763 | return HAL_ERROR; |
mbed_official | 87:085cde657901 | 764 | } |
mbed_official | 87:085cde657901 | 765 | } |
mbed_official | 87:085cde657901 | 766 | /* HSI is selected as System Clock Source */ |
mbed_official | 87:085cde657901 | 767 | else |
mbed_official | 87:085cde657901 | 768 | { |
mbed_official | 87:085cde657901 | 769 | /* Check the HSI ready flag */ |
mbed_official | 87:085cde657901 | 770 | if(__HAL_RCC_GET_FLAG(RCC_FLAG_HSIRDY) == RESET) |
mbed_official | 87:085cde657901 | 771 | { |
mbed_official | 87:085cde657901 | 772 | return HAL_ERROR; |
mbed_official | 87:085cde657901 | 773 | } |
mbed_official | 87:085cde657901 | 774 | } |
mbed_official | 87:085cde657901 | 775 | MODIFY_REG(RCC->CFGR, RCC_CFGR_SW, RCC_ClkInitStruct->SYSCLKSource); |
mbed_official | 87:085cde657901 | 776 | |
mbed_official | 87:085cde657901 | 777 | /* Get timeout */ |
mbed_official | 87:085cde657901 | 778 | timeout = HAL_GetTick() + CLOCKSWITCH_TIMEOUT_VALUE; |
mbed_official | 87:085cde657901 | 779 | |
mbed_official | 87:085cde657901 | 780 | if(RCC_ClkInitStruct->SYSCLKSource == RCC_SYSCLKSOURCE_HSE) |
mbed_official | 87:085cde657901 | 781 | { |
mbed_official | 87:085cde657901 | 782 | while (__HAL_RCC_GET_SYSCLK_SOURCE() != RCC_CFGR_SWS_HSE) |
mbed_official | 87:085cde657901 | 783 | { |
mbed_official | 87:085cde657901 | 784 | if(HAL_GetTick() >= timeout) |
mbed_official | 87:085cde657901 | 785 | { |
mbed_official | 87:085cde657901 | 786 | return HAL_TIMEOUT; |
mbed_official | 87:085cde657901 | 787 | } |
mbed_official | 87:085cde657901 | 788 | } |
mbed_official | 87:085cde657901 | 789 | } |
mbed_official | 87:085cde657901 | 790 | else if(RCC_ClkInitStruct->SYSCLKSource == RCC_SYSCLKSOURCE_PLLCLK) |
mbed_official | 87:085cde657901 | 791 | { |
mbed_official | 87:085cde657901 | 792 | while (__HAL_RCC_GET_SYSCLK_SOURCE() != RCC_CFGR_SWS_PLL) |
mbed_official | 87:085cde657901 | 793 | { |
mbed_official | 87:085cde657901 | 794 | if(HAL_GetTick() >= timeout) |
mbed_official | 87:085cde657901 | 795 | { |
mbed_official | 87:085cde657901 | 796 | return HAL_TIMEOUT; |
mbed_official | 87:085cde657901 | 797 | } |
mbed_official | 87:085cde657901 | 798 | } |
mbed_official | 87:085cde657901 | 799 | } |
mbed_official | 87:085cde657901 | 800 | else |
mbed_official | 87:085cde657901 | 801 | { |
mbed_official | 87:085cde657901 | 802 | while(__HAL_RCC_GET_SYSCLK_SOURCE() != RCC_CFGR_SWS_HSI) |
mbed_official | 87:085cde657901 | 803 | { |
mbed_official | 87:085cde657901 | 804 | if(HAL_GetTick() >= timeout) |
mbed_official | 87:085cde657901 | 805 | { |
mbed_official | 87:085cde657901 | 806 | return HAL_TIMEOUT; |
mbed_official | 87:085cde657901 | 807 | } |
mbed_official | 87:085cde657901 | 808 | } |
mbed_official | 87:085cde657901 | 809 | } |
mbed_official | 87:085cde657901 | 810 | } |
mbed_official | 87:085cde657901 | 811 | |
mbed_official | 87:085cde657901 | 812 | /* Program the new number of wait states to the LATENCY bits in the FLASH_ACR register */ |
mbed_official | 87:085cde657901 | 813 | __HAL_FLASH_SET_LATENCY(FLatency); |
mbed_official | 87:085cde657901 | 814 | |
mbed_official | 87:085cde657901 | 815 | /* Check that the new number of wait states is taken into account to access the Flash |
mbed_official | 87:085cde657901 | 816 | memory by reading the FLASH_ACR register */ |
mbed_official | 87:085cde657901 | 817 | if((FLASH->ACR & FLASH_ACR_LATENCY) != FLatency) |
mbed_official | 87:085cde657901 | 818 | { |
mbed_official | 87:085cde657901 | 819 | return HAL_ERROR; |
mbed_official | 87:085cde657901 | 820 | } |
mbed_official | 87:085cde657901 | 821 | } |
mbed_official | 87:085cde657901 | 822 | |
mbed_official | 87:085cde657901 | 823 | /*-------------------------- HCLK Configuration ----------------------------*/ |
mbed_official | 87:085cde657901 | 824 | if(((RCC_ClkInitStruct->ClockType) & RCC_CLOCKTYPE_HCLK) == RCC_CLOCKTYPE_HCLK) |
mbed_official | 87:085cde657901 | 825 | { |
mbed_official | 87:085cde657901 | 826 | assert_param(IS_RCC_HCLK(RCC_ClkInitStruct->AHBCLKDivider)); |
mbed_official | 87:085cde657901 | 827 | MODIFY_REG(RCC->CFGR, RCC_CFGR_HPRE, RCC_ClkInitStruct->AHBCLKDivider); |
mbed_official | 87:085cde657901 | 828 | } |
mbed_official | 87:085cde657901 | 829 | |
mbed_official | 87:085cde657901 | 830 | /*-------------------------- PCLK1 Configuration ---------------------------*/ |
mbed_official | 87:085cde657901 | 831 | if(((RCC_ClkInitStruct->ClockType) & RCC_CLOCKTYPE_PCLK1) == RCC_CLOCKTYPE_PCLK1) |
mbed_official | 87:085cde657901 | 832 | { |
mbed_official | 87:085cde657901 | 833 | assert_param(IS_RCC_PCLK(RCC_ClkInitStruct->APB1CLKDivider)); |
mbed_official | 87:085cde657901 | 834 | MODIFY_REG(RCC->CFGR, RCC_CFGR_PPRE1, RCC_ClkInitStruct->APB1CLKDivider); |
mbed_official | 87:085cde657901 | 835 | } |
mbed_official | 87:085cde657901 | 836 | |
mbed_official | 87:085cde657901 | 837 | /*-------------------------- PCLK2 Configuration ---------------------------*/ |
mbed_official | 87:085cde657901 | 838 | if(((RCC_ClkInitStruct->ClockType) & RCC_CLOCKTYPE_PCLK2) == RCC_CLOCKTYPE_PCLK2) |
mbed_official | 87:085cde657901 | 839 | { |
mbed_official | 87:085cde657901 | 840 | assert_param(IS_RCC_PCLK(RCC_ClkInitStruct->APB2CLKDivider)); |
mbed_official | 87:085cde657901 | 841 | MODIFY_REG(RCC->CFGR, RCC_CFGR_PPRE2, ((RCC_ClkInitStruct->APB2CLKDivider) << 3)); |
mbed_official | 87:085cde657901 | 842 | } |
mbed_official | 87:085cde657901 | 843 | |
mbed_official | 87:085cde657901 | 844 | /* Setup SysTick Timer for 1 msec interrupts. |
mbed_official | 87:085cde657901 | 845 | ------------------------------------------ |
mbed_official | 87:085cde657901 | 846 | The SysTick_Config() function is a CMSIS function which configure: |
mbed_official | 87:085cde657901 | 847 | - The SysTick Reload register with value passed as function parameter. |
mbed_official | 87:085cde657901 | 848 | - Configure the SysTick IRQ priority to the lowest value (0x0F). |
mbed_official | 87:085cde657901 | 849 | - Reset the SysTick Counter register. |
mbed_official | 87:085cde657901 | 850 | - Configure the SysTick Counter clock source to be Core Clock Source (HCLK). |
mbed_official | 87:085cde657901 | 851 | - Enable the SysTick Interrupt. |
mbed_official | 87:085cde657901 | 852 | - Start the SysTick Counter.*/ |
mbed_official | 87:085cde657901 | 853 | SysTick_Config(HAL_RCC_GetHCLKFreq() / 1000); |
mbed_official | 87:085cde657901 | 854 | |
mbed_official | 87:085cde657901 | 855 | return HAL_OK; |
mbed_official | 87:085cde657901 | 856 | } |
mbed_official | 87:085cde657901 | 857 | |
mbed_official | 87:085cde657901 | 858 | /** |
mbed_official | 87:085cde657901 | 859 | * @} |
mbed_official | 87:085cde657901 | 860 | */ |
mbed_official | 87:085cde657901 | 861 | |
mbed_official | 87:085cde657901 | 862 | /** @defgroup RCC_Group2 Peripheral Control functions |
mbed_official | 87:085cde657901 | 863 | * @brief RCC clocks control functions |
mbed_official | 87:085cde657901 | 864 | * |
mbed_official | 87:085cde657901 | 865 | @verbatim |
mbed_official | 87:085cde657901 | 866 | =============================================================================== |
mbed_official | 87:085cde657901 | 867 | ##### Peripheral Control functions ##### |
mbed_official | 87:085cde657901 | 868 | =============================================================================== |
mbed_official | 87:085cde657901 | 869 | [..] |
mbed_official | 87:085cde657901 | 870 | This subsection provides a set of functions allowing to control the RCC Clocks |
mbed_official | 87:085cde657901 | 871 | frequencies. |
mbed_official | 87:085cde657901 | 872 | |
mbed_official | 87:085cde657901 | 873 | @endverbatim |
mbed_official | 87:085cde657901 | 874 | * @{ |
mbed_official | 87:085cde657901 | 875 | */ |
mbed_official | 87:085cde657901 | 876 | |
mbed_official | 87:085cde657901 | 877 | /** |
mbed_official | 87:085cde657901 | 878 | * @brief Selects the clock source to output on MCO1 pin(PA8) or on MCO2 pin(PC9). |
mbed_official | 87:085cde657901 | 879 | * @note PA8/PC9 should be configured in alternate function mode. |
mbed_official | 87:085cde657901 | 880 | * @param RCC_MCOx: specifies the output direction for the clock source. |
mbed_official | 87:085cde657901 | 881 | * This parameter can be one of the following values: |
mbed_official | 87:085cde657901 | 882 | * @arg RCC_MCO1: Clock source to output on MCO1 pin(PA8). |
mbed_official | 87:085cde657901 | 883 | * @arg RCC_MCO2: Clock source to output on MCO2 pin(PC9). |
mbed_official | 87:085cde657901 | 884 | * @param RCC_MCOSource: specifies the clock source to output. |
mbed_official | 87:085cde657901 | 885 | * This parameter can be one of the following values: |
mbed_official | 87:085cde657901 | 886 | * @arg RCC_MCO1SOURCE_HSI: HSI clock selected as MCO1 source |
mbed_official | 87:085cde657901 | 887 | * @arg RCC_MCO1SOURCE_LSE: LSE clock selected as MCO1 source |
mbed_official | 87:085cde657901 | 888 | * @arg RCC_MCO1SOURCE_HSE: HSE clock selected as MCO1 source |
mbed_official | 87:085cde657901 | 889 | * @arg RCC_MCO1SOURCE_PLLCLK: main PLL clock selected as MCO1 source |
mbed_official | 87:085cde657901 | 890 | * @arg RCC_MCO2SOURCE_SYSCLK: System clock (SYSCLK) selected as MCO2 source |
mbed_official | 87:085cde657901 | 891 | * @arg RCC_MCO2SOURCE_PLLI2SCLK: PLLI2S clock selected as MCO2 source |
mbed_official | 87:085cde657901 | 892 | * @arg RCC_MCO2SOURCE_HSE: HSE clock selected as MCO2 source |
mbed_official | 87:085cde657901 | 893 | * @arg RCC_MCO2SOURCE_PLLCLK: main PLL clock selected as MCO2 source |
mbed_official | 87:085cde657901 | 894 | * @param RCC_MCODiv: specifies the MCOx prescaler. |
mbed_official | 87:085cde657901 | 895 | * This parameter can be one of the following values: |
mbed_official | 87:085cde657901 | 896 | * @arg RCC_MCODIV_1: no division applied to MCOx clock |
mbed_official | 87:085cde657901 | 897 | * @arg RCC_MCODIV_2: division by 2 applied to MCOx clock |
mbed_official | 87:085cde657901 | 898 | * @arg RCC_MCODIV_3: division by 3 applied to MCOx clock |
mbed_official | 87:085cde657901 | 899 | * @arg RCC_MCODIV_4: division by 4 applied to MCOx clock |
mbed_official | 87:085cde657901 | 900 | * @arg RCC_MCODIV_5: division by 5 applied to MCOx clock |
mbed_official | 87:085cde657901 | 901 | * @retval None |
mbed_official | 87:085cde657901 | 902 | */ |
mbed_official | 87:085cde657901 | 903 | void HAL_RCC_MCOConfig(uint32_t RCC_MCOx, uint32_t RCC_MCOSource, uint32_t RCC_MCODiv) |
mbed_official | 87:085cde657901 | 904 | { |
mbed_official | 87:085cde657901 | 905 | GPIO_InitTypeDef GPIO_InitStruct; |
mbed_official | 87:085cde657901 | 906 | /* Check the parameters */ |
mbed_official | 87:085cde657901 | 907 | assert_param(IS_RCC_MCO(RCC_MCOx)); |
mbed_official | 87:085cde657901 | 908 | assert_param(IS_RCC_MCODIV(RCC_MCODiv)); |
mbed_official | 87:085cde657901 | 909 | /* RCC_MCO1 */ |
mbed_official | 87:085cde657901 | 910 | if(RCC_MCOx == RCC_MCO1) |
mbed_official | 87:085cde657901 | 911 | { |
mbed_official | 87:085cde657901 | 912 | assert_param(IS_RCC_MCO1SOURCE(RCC_MCOSource)); |
mbed_official | 87:085cde657901 | 913 | |
mbed_official | 87:085cde657901 | 914 | /* MCO1 Clock Enable */ |
mbed_official | 87:085cde657901 | 915 | __MCO1_CLK_ENABLE(); |
mbed_official | 87:085cde657901 | 916 | |
mbed_official | 87:085cde657901 | 917 | /* Configue the MCO1 pin in alternate function mode */ |
mbed_official | 87:085cde657901 | 918 | GPIO_InitStruct.Pin = MCO1_PIN; |
mbed_official | 87:085cde657901 | 919 | GPIO_InitStruct.Mode = GPIO_MODE_AF_PP; |
mbed_official | 87:085cde657901 | 920 | GPIO_InitStruct.Speed = GPIO_SPEED_HIGH; |
mbed_official | 87:085cde657901 | 921 | GPIO_InitStruct.Pull = GPIO_NOPULL; |
mbed_official | 87:085cde657901 | 922 | GPIO_InitStruct.Alternate = GPIO_AF0_MCO; |
mbed_official | 87:085cde657901 | 923 | HAL_GPIO_Init(MCO1_GPIO_PORT, &GPIO_InitStruct); |
mbed_official | 87:085cde657901 | 924 | |
mbed_official | 87:085cde657901 | 925 | /* Mask MCO1 and MCO1PRE[2:0] bits then Select MCO1 clock source and prescaler */ |
mbed_official | 87:085cde657901 | 926 | MODIFY_REG(RCC->CFGR, (RCC_CFGR_MCO1 | RCC_CFGR_MCO1PRE), (RCC_MCOSource | RCC_MCODiv)); |
mbed_official | 87:085cde657901 | 927 | } |
mbed_official | 87:085cde657901 | 928 | else |
mbed_official | 87:085cde657901 | 929 | { |
mbed_official | 87:085cde657901 | 930 | assert_param(IS_RCC_MCO2SOURCE(RCC_MCOSource)); |
mbed_official | 87:085cde657901 | 931 | |
mbed_official | 87:085cde657901 | 932 | /* MCO2 Clock Enable */ |
mbed_official | 87:085cde657901 | 933 | __MCO2_CLK_ENABLE(); |
mbed_official | 87:085cde657901 | 934 | |
mbed_official | 87:085cde657901 | 935 | /* Configue the MCO2 pin in alternate function mode */ |
mbed_official | 87:085cde657901 | 936 | GPIO_InitStruct.Pin = MCO2_PIN; |
mbed_official | 87:085cde657901 | 937 | GPIO_InitStruct.Mode = GPIO_MODE_AF_PP; |
mbed_official | 87:085cde657901 | 938 | GPIO_InitStruct.Speed = GPIO_SPEED_HIGH; |
mbed_official | 87:085cde657901 | 939 | GPIO_InitStruct.Pull = GPIO_NOPULL; |
mbed_official | 87:085cde657901 | 940 | GPIO_InitStruct.Alternate = GPIO_AF0_MCO; |
mbed_official | 87:085cde657901 | 941 | HAL_GPIO_Init(MCO2_GPIO_PORT, &GPIO_InitStruct); |
mbed_official | 87:085cde657901 | 942 | |
mbed_official | 87:085cde657901 | 943 | /* Mask MCO2 and MCO2PRE[2:0] bits then Select MCO2 clock source and prescaler */ |
mbed_official | 87:085cde657901 | 944 | MODIFY_REG(RCC->CFGR, (RCC_CFGR_MCO2 | RCC_CFGR_MCO2PRE), (RCC_MCOSource | (RCC_MCODiv << 3))); |
mbed_official | 87:085cde657901 | 945 | } |
mbed_official | 87:085cde657901 | 946 | } |
mbed_official | 87:085cde657901 | 947 | |
mbed_official | 87:085cde657901 | 948 | /** |
mbed_official | 87:085cde657901 | 949 | * @brief Enables the Clock Security System. |
mbed_official | 87:085cde657901 | 950 | * @note If a failure is detected on the HSE oscillator clock, this oscillator |
mbed_official | 87:085cde657901 | 951 | * is automatically disabled and an interrupt is generated to inform the |
mbed_official | 87:085cde657901 | 952 | * software about the failure (Clock Security System Interrupt, CSSI), |
mbed_official | 87:085cde657901 | 953 | * allowing the MCU to perform rescue operations. The CSSI is linked to |
mbed_official | 87:085cde657901 | 954 | * the Cortex-M4 NMI (Non-Maskable Interrupt) exception vector. |
mbed_official | 87:085cde657901 | 955 | * @param None |
mbed_official | 87:085cde657901 | 956 | * @retval None |
mbed_official | 87:085cde657901 | 957 | */ |
mbed_official | 87:085cde657901 | 958 | void HAL_RCC_EnableCSS(void) |
mbed_official | 87:085cde657901 | 959 | { |
mbed_official | 87:085cde657901 | 960 | *(__IO uint32_t *) CR_CSSON_BB = (uint32_t)ENABLE; |
mbed_official | 87:085cde657901 | 961 | } |
mbed_official | 87:085cde657901 | 962 | |
mbed_official | 87:085cde657901 | 963 | /** |
mbed_official | 87:085cde657901 | 964 | * @brief Disables the Clock Security System. |
mbed_official | 87:085cde657901 | 965 | * @param None |
mbed_official | 87:085cde657901 | 966 | * @retval None |
mbed_official | 87:085cde657901 | 967 | */ |
mbed_official | 87:085cde657901 | 968 | void HAL_RCC_DisableCSS(void) |
mbed_official | 87:085cde657901 | 969 | { |
mbed_official | 87:085cde657901 | 970 | *(__IO uint32_t *) CR_CSSON_BB = (uint32_t)DISABLE; |
mbed_official | 87:085cde657901 | 971 | } |
mbed_official | 87:085cde657901 | 972 | |
mbed_official | 87:085cde657901 | 973 | /** |
mbed_official | 87:085cde657901 | 974 | * @brief Returns the SYSCLK frequency |
mbed_official | 87:085cde657901 | 975 | * |
mbed_official | 87:085cde657901 | 976 | * @note The system frequency computed by this function is not the real |
mbed_official | 87:085cde657901 | 977 | * frequency in the chip. It is calculated based on the predefined |
mbed_official | 87:085cde657901 | 978 | * constant and the selected clock source: |
mbed_official | 87:085cde657901 | 979 | * @note If SYSCLK source is HSI, function returns values based on HSI_VALUE(*) |
mbed_official | 87:085cde657901 | 980 | * @note If SYSCLK source is HSE, function returns values based on HSE_VALUE(**) |
mbed_official | 87:085cde657901 | 981 | * @note If SYSCLK source is PLL, function returns values based on HSE_VALUE(**) |
mbed_official | 87:085cde657901 | 982 | * or HSI_VALUE(*) multiplied/divided by the PLL factors. |
mbed_official | 87:085cde657901 | 983 | * @note (*) HSI_VALUE is a constant defined in stm32f4xx_hal_conf.h file (default value |
mbed_official | 87:085cde657901 | 984 | * 16 MHz) but the real value may vary depending on the variations |
mbed_official | 87:085cde657901 | 985 | * in voltage and temperature. |
mbed_official | 87:085cde657901 | 986 | * @note (**) HSE_VALUE is a constant defined in stm32f4xx_hal_conf.h file (default value |
mbed_official | 87:085cde657901 | 987 | * 25 MHz), user has to ensure that HSE_VALUE is same as the real |
mbed_official | 87:085cde657901 | 988 | * frequency of the crystal used. Otherwise, this function may |
mbed_official | 87:085cde657901 | 989 | * have wrong result. |
mbed_official | 87:085cde657901 | 990 | * |
mbed_official | 87:085cde657901 | 991 | * @note The result of this function could be not correct when using fractional |
mbed_official | 87:085cde657901 | 992 | * value for HSE crystal. |
mbed_official | 87:085cde657901 | 993 | * |
mbed_official | 87:085cde657901 | 994 | * @note This function can be used by the user application to compute the |
mbed_official | 87:085cde657901 | 995 | * baudrate for the communication peripherals or configure other parameters. |
mbed_official | 87:085cde657901 | 996 | * |
mbed_official | 87:085cde657901 | 997 | * @note Each time SYSCLK changes, this function must be called to update the |
mbed_official | 87:085cde657901 | 998 | * right SYSCLK value. Otherwise, any configuration based on this function will be incorrect. |
mbed_official | 87:085cde657901 | 999 | * |
mbed_official | 87:085cde657901 | 1000 | * |
mbed_official | 87:085cde657901 | 1001 | * @param None |
mbed_official | 87:085cde657901 | 1002 | * @retval SYSCLK frequency |
mbed_official | 87:085cde657901 | 1003 | */ |
mbed_official | 87:085cde657901 | 1004 | uint32_t HAL_RCC_GetSysClockFreq(void) |
mbed_official | 87:085cde657901 | 1005 | { |
mbed_official | 87:085cde657901 | 1006 | uint32_t pllm = 0, pllvco = 0, pllp = 0; |
mbed_official | 87:085cde657901 | 1007 | uint32_t sysclockfreq = 0; |
mbed_official | 87:085cde657901 | 1008 | |
mbed_official | 87:085cde657901 | 1009 | /* Get SYSCLK source -------------------------------------------------------*/ |
mbed_official | 87:085cde657901 | 1010 | switch (RCC->CFGR & RCC_CFGR_SWS) |
mbed_official | 87:085cde657901 | 1011 | { |
mbed_official | 87:085cde657901 | 1012 | case RCC_CFGR_SWS_HSI: /* HSI used as system clock source */ |
mbed_official | 87:085cde657901 | 1013 | { |
mbed_official | 87:085cde657901 | 1014 | sysclockfreq = HSI_VALUE; |
mbed_official | 87:085cde657901 | 1015 | break; |
mbed_official | 87:085cde657901 | 1016 | } |
mbed_official | 87:085cde657901 | 1017 | case RCC_CFGR_SWS_HSE: /* HSE used as system clock source */ |
mbed_official | 87:085cde657901 | 1018 | { |
mbed_official | 87:085cde657901 | 1019 | sysclockfreq = HSE_VALUE; |
mbed_official | 87:085cde657901 | 1020 | break; |
mbed_official | 87:085cde657901 | 1021 | } |
mbed_official | 87:085cde657901 | 1022 | case RCC_CFGR_SWS_PLL: /* PLL used as system clock source */ |
mbed_official | 87:085cde657901 | 1023 | { |
mbed_official | 87:085cde657901 | 1024 | /* PLL_VCO = (HSE_VALUE or HSI_VALUE / PLLM) * PLLN |
mbed_official | 87:085cde657901 | 1025 | SYSCLK = PLL_VCO / PLLP */ |
mbed_official | 87:085cde657901 | 1026 | pllm = RCC->PLLCFGR & RCC_PLLCFGR_PLLM; |
mbed_official | 87:085cde657901 | 1027 | if (__RCC_PLLSRC() != 0) |
mbed_official | 87:085cde657901 | 1028 | { |
mbed_official | 87:085cde657901 | 1029 | /* HSE used as PLL clock source */ |
mbed_official | 87:085cde657901 | 1030 | pllvco = ((HSE_VALUE / pllm) * ((RCC->PLLCFGR & RCC_PLLCFGR_PLLN) >> POSITION_VAL(RCC_PLLCFGR_PLLN))); |
mbed_official | 87:085cde657901 | 1031 | } |
mbed_official | 87:085cde657901 | 1032 | else |
mbed_official | 87:085cde657901 | 1033 | { |
mbed_official | 87:085cde657901 | 1034 | /* HSI used as PLL clock source */ |
mbed_official | 87:085cde657901 | 1035 | pllvco = ((HSI_VALUE / pllm) * ((RCC->PLLCFGR & RCC_PLLCFGR_PLLN) >> POSITION_VAL(RCC_PLLCFGR_PLLN))); |
mbed_official | 87:085cde657901 | 1036 | } |
mbed_official | 87:085cde657901 | 1037 | pllp = ((((RCC->PLLCFGR & RCC_PLLCFGR_PLLP) >> POSITION_VAL(RCC_PLLCFGR_PLLP)) + 1 ) *2); |
mbed_official | 87:085cde657901 | 1038 | |
mbed_official | 87:085cde657901 | 1039 | sysclockfreq = pllvco/pllp; |
mbed_official | 87:085cde657901 | 1040 | break; |
mbed_official | 87:085cde657901 | 1041 | } |
mbed_official | 87:085cde657901 | 1042 | default: |
mbed_official | 87:085cde657901 | 1043 | { |
mbed_official | 87:085cde657901 | 1044 | sysclockfreq = HSI_VALUE; |
mbed_official | 87:085cde657901 | 1045 | break; |
mbed_official | 87:085cde657901 | 1046 | } |
mbed_official | 87:085cde657901 | 1047 | } |
mbed_official | 87:085cde657901 | 1048 | return sysclockfreq; |
mbed_official | 87:085cde657901 | 1049 | } |
mbed_official | 87:085cde657901 | 1050 | |
mbed_official | 87:085cde657901 | 1051 | /** |
mbed_official | 87:085cde657901 | 1052 | * @brief Returns the HCLK frequency |
mbed_official | 87:085cde657901 | 1053 | * @note Each time HCLK changes, this function must be called to update the |
mbed_official | 87:085cde657901 | 1054 | * right HCLK value. Otherwise, any configuration based on this function will be incorrect. |
mbed_official | 87:085cde657901 | 1055 | * |
mbed_official | 87:085cde657901 | 1056 | * @note The SystemCoreClock CMSIS variable is used to store System Clock Frequency |
mbed_official | 87:085cde657901 | 1057 | * and updated within this function |
mbed_official | 87:085cde657901 | 1058 | * @param None |
mbed_official | 87:085cde657901 | 1059 | * @retval HCLK frequency |
mbed_official | 87:085cde657901 | 1060 | */ |
mbed_official | 87:085cde657901 | 1061 | uint32_t HAL_RCC_GetHCLKFreq(void) |
mbed_official | 87:085cde657901 | 1062 | { |
mbed_official | 87:085cde657901 | 1063 | SystemCoreClock = HAL_RCC_GetSysClockFreq() >> APBAHBPrescTable[(RCC->CFGR & RCC_CFGR_HPRE)>> POSITION_VAL(RCC_CFGR_HPRE)]; |
mbed_official | 87:085cde657901 | 1064 | return SystemCoreClock; |
mbed_official | 87:085cde657901 | 1065 | } |
mbed_official | 87:085cde657901 | 1066 | |
mbed_official | 87:085cde657901 | 1067 | /** |
mbed_official | 87:085cde657901 | 1068 | * @brief Returns the PCLK1 frequency |
mbed_official | 87:085cde657901 | 1069 | * @note Each time PCLK1 changes, this function must be called to update the |
mbed_official | 87:085cde657901 | 1070 | * right PCLK1 value. Otherwise, any configuration based on this function will be incorrect. |
mbed_official | 87:085cde657901 | 1071 | * @param None |
mbed_official | 87:085cde657901 | 1072 | * @retval PCLK1 frequency |
mbed_official | 87:085cde657901 | 1073 | */ |
mbed_official | 87:085cde657901 | 1074 | uint32_t HAL_RCC_GetPCLK1Freq(void) |
mbed_official | 87:085cde657901 | 1075 | { |
mbed_official | 87:085cde657901 | 1076 | /* Get HCLK source and Compute PCLK1 frequency ---------------------------*/ |
mbed_official | 87:085cde657901 | 1077 | return (HAL_RCC_GetHCLKFreq() >> APBAHBPrescTable[(RCC->CFGR & RCC_CFGR_PPRE1)>> POSITION_VAL(RCC_CFGR_PPRE1)]); |
mbed_official | 87:085cde657901 | 1078 | } |
mbed_official | 87:085cde657901 | 1079 | |
mbed_official | 87:085cde657901 | 1080 | /** |
mbed_official | 87:085cde657901 | 1081 | * @brief Returns the PCLK2 frequency |
mbed_official | 87:085cde657901 | 1082 | * @note Each time PCLK2 changes, this function must be called to update the |
mbed_official | 87:085cde657901 | 1083 | * right PCLK2 value. Otherwise, any configuration based on this function will be incorrect. |
mbed_official | 87:085cde657901 | 1084 | * @param None |
mbed_official | 87:085cde657901 | 1085 | * @retval PCLK2 frequency |
mbed_official | 87:085cde657901 | 1086 | */ |
mbed_official | 87:085cde657901 | 1087 | uint32_t HAL_RCC_GetPCLK2Freq(void) |
mbed_official | 87:085cde657901 | 1088 | { |
mbed_official | 87:085cde657901 | 1089 | /* Get HCLK source and Compute PCLK2 frequency ---------------------------*/ |
mbed_official | 87:085cde657901 | 1090 | return (HAL_RCC_GetHCLKFreq()>> APBAHBPrescTable[(RCC->CFGR & RCC_CFGR_PPRE2)>> POSITION_VAL(RCC_CFGR_PPRE2)]); |
mbed_official | 87:085cde657901 | 1091 | } |
mbed_official | 87:085cde657901 | 1092 | |
mbed_official | 87:085cde657901 | 1093 | /** |
mbed_official | 87:085cde657901 | 1094 | * @brief Configures the RCC_OscInitStruct according to the internal |
mbed_official | 87:085cde657901 | 1095 | * RCC configuration registers. |
mbed_official | 87:085cde657901 | 1096 | * @param RCC_OscInitStruct: pointer to an RCC_OscInitTypeDef structure that |
mbed_official | 87:085cde657901 | 1097 | * will be configured. |
mbed_official | 87:085cde657901 | 1098 | * @retval None |
mbed_official | 87:085cde657901 | 1099 | */ |
mbed_official | 87:085cde657901 | 1100 | void HAL_RCC_GetOscConfig(RCC_OscInitTypeDef *RCC_OscInitStruct) |
mbed_official | 87:085cde657901 | 1101 | { |
mbed_official | 87:085cde657901 | 1102 | /* Set all possible values for the Oscillator type parameter ---------------*/ |
mbed_official | 87:085cde657901 | 1103 | RCC_OscInitStruct->OscillatorType = RCC_OSCILLATORTYPE_HSE | RCC_OSCILLATORTYPE_HSI | RCC_OSCILLATORTYPE_LSE | RCC_OSCILLATORTYPE_LSI; |
mbed_official | 87:085cde657901 | 1104 | |
mbed_official | 87:085cde657901 | 1105 | /* Get the HSE configuration -----------------------------------------------*/ |
mbed_official | 87:085cde657901 | 1106 | if((RCC->CR &RCC_CR_HSEBYP) == RCC_CR_HSEBYP) |
mbed_official | 87:085cde657901 | 1107 | { |
mbed_official | 87:085cde657901 | 1108 | RCC_OscInitStruct->HSEState = RCC_HSE_BYPASS; |
mbed_official | 87:085cde657901 | 1109 | } |
mbed_official | 87:085cde657901 | 1110 | else if((RCC->CR &RCC_CR_HSEON) == RCC_CR_HSEON) |
mbed_official | 87:085cde657901 | 1111 | { |
mbed_official | 87:085cde657901 | 1112 | RCC_OscInitStruct->HSEState = RCC_HSE_ON; |
mbed_official | 87:085cde657901 | 1113 | } |
mbed_official | 87:085cde657901 | 1114 | else |
mbed_official | 87:085cde657901 | 1115 | { |
mbed_official | 87:085cde657901 | 1116 | RCC_OscInitStruct->HSEState = RCC_HSE_OFF; |
mbed_official | 87:085cde657901 | 1117 | } |
mbed_official | 87:085cde657901 | 1118 | |
mbed_official | 87:085cde657901 | 1119 | /* Get the HSI configuration -----------------------------------------------*/ |
mbed_official | 87:085cde657901 | 1120 | if((RCC->CR &RCC_CR_HSION) == RCC_CR_HSION) |
mbed_official | 87:085cde657901 | 1121 | { |
mbed_official | 87:085cde657901 | 1122 | RCC_OscInitStruct->HSIState = RCC_HSI_ON; |
mbed_official | 87:085cde657901 | 1123 | } |
mbed_official | 87:085cde657901 | 1124 | else |
mbed_official | 87:085cde657901 | 1125 | { |
mbed_official | 87:085cde657901 | 1126 | RCC_OscInitStruct->HSIState = RCC_HSI_OFF; |
mbed_official | 87:085cde657901 | 1127 | } |
mbed_official | 87:085cde657901 | 1128 | |
mbed_official | 87:085cde657901 | 1129 | RCC_OscInitStruct->HSICalibrationValue = (uint32_t)((RCC->CR &RCC_CR_HSITRIM) >> POSITION_VAL(RCC_CR_HSITRIM)); |
mbed_official | 87:085cde657901 | 1130 | |
mbed_official | 87:085cde657901 | 1131 | /* Get the LSE configuration -----------------------------------------------*/ |
mbed_official | 87:085cde657901 | 1132 | if((RCC->BDCR &RCC_BDCR_LSEBYP) == RCC_BDCR_LSEBYP) |
mbed_official | 87:085cde657901 | 1133 | { |
mbed_official | 87:085cde657901 | 1134 | RCC_OscInitStruct->LSEState = RCC_LSE_BYPASS; |
mbed_official | 87:085cde657901 | 1135 | } |
mbed_official | 87:085cde657901 | 1136 | else if((RCC->BDCR &RCC_BDCR_LSEON) == RCC_BDCR_LSEON) |
mbed_official | 87:085cde657901 | 1137 | { |
mbed_official | 87:085cde657901 | 1138 | RCC_OscInitStruct->LSEState = RCC_LSE_ON; |
mbed_official | 87:085cde657901 | 1139 | } |
mbed_official | 87:085cde657901 | 1140 | else |
mbed_official | 87:085cde657901 | 1141 | { |
mbed_official | 87:085cde657901 | 1142 | RCC_OscInitStruct->LSEState = RCC_LSE_OFF; |
mbed_official | 87:085cde657901 | 1143 | } |
mbed_official | 87:085cde657901 | 1144 | |
mbed_official | 87:085cde657901 | 1145 | /* Get the LSI configuration -----------------------------------------------*/ |
mbed_official | 87:085cde657901 | 1146 | if((RCC->CSR &RCC_CSR_LSION) == RCC_CSR_LSION) |
mbed_official | 87:085cde657901 | 1147 | { |
mbed_official | 87:085cde657901 | 1148 | RCC_OscInitStruct->LSIState = RCC_LSI_ON; |
mbed_official | 87:085cde657901 | 1149 | } |
mbed_official | 87:085cde657901 | 1150 | else |
mbed_official | 87:085cde657901 | 1151 | { |
mbed_official | 87:085cde657901 | 1152 | RCC_OscInitStruct->LSIState = RCC_LSI_OFF; |
mbed_official | 87:085cde657901 | 1153 | } |
mbed_official | 87:085cde657901 | 1154 | |
mbed_official | 87:085cde657901 | 1155 | /* Get the PLL configuration -----------------------------------------------*/ |
mbed_official | 87:085cde657901 | 1156 | if((RCC->CR &RCC_CR_PLLON) == RCC_CR_PLLON) |
mbed_official | 87:085cde657901 | 1157 | { |
mbed_official | 87:085cde657901 | 1158 | RCC_OscInitStruct->PLL.PLLState = RCC_PLL_ON; |
mbed_official | 87:085cde657901 | 1159 | } |
mbed_official | 87:085cde657901 | 1160 | else |
mbed_official | 87:085cde657901 | 1161 | { |
mbed_official | 87:085cde657901 | 1162 | RCC_OscInitStruct->PLL.PLLState = RCC_PLL_OFF; |
mbed_official | 87:085cde657901 | 1163 | } |
mbed_official | 87:085cde657901 | 1164 | RCC_OscInitStruct->PLL.PLLSource = (uint32_t)(RCC->PLLCFGR & RCC_PLLCFGR_PLLSRC); |
mbed_official | 87:085cde657901 | 1165 | RCC_OscInitStruct->PLL.PLLM = (uint32_t)(RCC->PLLCFGR & RCC_PLLCFGR_PLLM); |
mbed_official | 87:085cde657901 | 1166 | RCC_OscInitStruct->PLL.PLLN = (uint32_t)((RCC->PLLCFGR & RCC_PLLCFGR_PLLN) >> POSITION_VAL(RCC_PLLCFGR_PLLN)); |
mbed_official | 87:085cde657901 | 1167 | RCC_OscInitStruct->PLL.PLLP = (uint32_t)((((RCC->PLLCFGR & RCC_PLLCFGR_PLLP) + RCC_PLLCFGR_PLLP_0) << 1) >> POSITION_VAL(RCC_PLLCFGR_PLLP)); |
mbed_official | 87:085cde657901 | 1168 | RCC_OscInitStruct->PLL.PLLQ = (uint32_t)((RCC->PLLCFGR & RCC_PLLCFGR_PLLQ) >> POSITION_VAL(RCC_PLLCFGR_PLLQ)); |
mbed_official | 87:085cde657901 | 1169 | } |
mbed_official | 87:085cde657901 | 1170 | |
mbed_official | 87:085cde657901 | 1171 | /** |
mbed_official | 87:085cde657901 | 1172 | * @brief Configures the RCC_ClkInitStruct according to the internal |
mbed_official | 87:085cde657901 | 1173 | * RCC configuration registers. |
mbed_official | 87:085cde657901 | 1174 | * @param RCC_OscInitStruct: pointer to an RCC_ClkInitTypeDef structure that |
mbed_official | 87:085cde657901 | 1175 | * will be configured. |
mbed_official | 87:085cde657901 | 1176 | * @param pFLatency: Pointer on the Flash Latency. |
mbed_official | 87:085cde657901 | 1177 | * @retval None |
mbed_official | 87:085cde657901 | 1178 | */ |
mbed_official | 87:085cde657901 | 1179 | void HAL_RCC_GetClockConfig(RCC_ClkInitTypeDef *RCC_ClkInitStruct, uint32_t *pFLatency) |
mbed_official | 87:085cde657901 | 1180 | { |
mbed_official | 87:085cde657901 | 1181 | /* Set all possible values for the Clock type parameter --------------------*/ |
mbed_official | 87:085cde657901 | 1182 | RCC_ClkInitStruct->ClockType = RCC_CLOCKTYPE_SYSCLK | RCC_CLOCKTYPE_HCLK | RCC_CLOCKTYPE_PCLK1 | RCC_CLOCKTYPE_PCLK2; |
mbed_official | 87:085cde657901 | 1183 | |
mbed_official | 87:085cde657901 | 1184 | /* Get the SYSCLK configuration --------------------------------------------*/ |
mbed_official | 87:085cde657901 | 1185 | RCC_ClkInitStruct->SYSCLKSource = (uint32_t)(RCC->CFGR & RCC_CFGR_SW); |
mbed_official | 87:085cde657901 | 1186 | |
mbed_official | 87:085cde657901 | 1187 | /* Get the HCLK configuration ----------------------------------------------*/ |
mbed_official | 87:085cde657901 | 1188 | RCC_ClkInitStruct->AHBCLKDivider = (uint32_t)(RCC->CFGR & RCC_CFGR_HPRE); |
mbed_official | 87:085cde657901 | 1189 | |
mbed_official | 87:085cde657901 | 1190 | /* Get the APB1 configuration ----------------------------------------------*/ |
mbed_official | 87:085cde657901 | 1191 | RCC_ClkInitStruct->APB1CLKDivider = (uint32_t)(RCC->CFGR & RCC_CFGR_PPRE1); |
mbed_official | 87:085cde657901 | 1192 | |
mbed_official | 87:085cde657901 | 1193 | /* Get the APB2 configuration ----------------------------------------------*/ |
mbed_official | 87:085cde657901 | 1194 | RCC_ClkInitStruct->APB2CLKDivider = (uint32_t)((RCC->CFGR & RCC_CFGR_PPRE2) >> 3); |
mbed_official | 87:085cde657901 | 1195 | |
mbed_official | 87:085cde657901 | 1196 | /* Get the Flash Wait State (Latency) configuration ------------------------*/ |
mbed_official | 87:085cde657901 | 1197 | *pFLatency = (uint32_t)(FLASH->ACR & FLASH_ACR_LATENCY); |
mbed_official | 87:085cde657901 | 1198 | } |
mbed_official | 87:085cde657901 | 1199 | |
mbed_official | 87:085cde657901 | 1200 | /** |
mbed_official | 87:085cde657901 | 1201 | * @brief This function handles the RCC CSS interrupt request. |
mbed_official | 87:085cde657901 | 1202 | * @note This API should be called under the NMI_Handler(). |
mbed_official | 87:085cde657901 | 1203 | * @param None |
mbed_official | 87:085cde657901 | 1204 | * @retval None |
mbed_official | 87:085cde657901 | 1205 | */ |
mbed_official | 87:085cde657901 | 1206 | void HAL_RCC_NMI_IRQHandler(void) |
mbed_official | 87:085cde657901 | 1207 | { |
mbed_official | 87:085cde657901 | 1208 | /* Check RCC CSSF flag */ |
mbed_official | 87:085cde657901 | 1209 | if(__HAL_RCC_GET_IT(RCC_IT_CSS)) |
mbed_official | 87:085cde657901 | 1210 | { |
mbed_official | 87:085cde657901 | 1211 | /* RCC Clock Security System interrupt user callback */ |
mbed_official | 87:085cde657901 | 1212 | HAL_RCC_CCSCallback(); |
mbed_official | 87:085cde657901 | 1213 | |
mbed_official | 87:085cde657901 | 1214 | /* Clear RCC CSS pending bit */ |
mbed_official | 87:085cde657901 | 1215 | __HAL_RCC_CLEAR_IT(RCC_IT_CSS); |
mbed_official | 87:085cde657901 | 1216 | } |
mbed_official | 87:085cde657901 | 1217 | } |
mbed_official | 87:085cde657901 | 1218 | |
mbed_official | 87:085cde657901 | 1219 | /** |
mbed_official | 87:085cde657901 | 1220 | * @brief RCC Clock Security System interrupt callback |
mbed_official | 87:085cde657901 | 1221 | * @param none |
mbed_official | 87:085cde657901 | 1222 | * @retval none |
mbed_official | 87:085cde657901 | 1223 | */ |
mbed_official | 87:085cde657901 | 1224 | __weak void HAL_RCC_CCSCallback(void) |
mbed_official | 87:085cde657901 | 1225 | { |
mbed_official | 87:085cde657901 | 1226 | /* NOTE : This function Should not be modified, when the callback is needed, |
mbed_official | 87:085cde657901 | 1227 | the HAL_RCC_CCSCallback could be implemented in the user file |
mbed_official | 87:085cde657901 | 1228 | */ |
mbed_official | 87:085cde657901 | 1229 | } |
mbed_official | 87:085cde657901 | 1230 | |
mbed_official | 87:085cde657901 | 1231 | /** |
mbed_official | 87:085cde657901 | 1232 | * @} |
mbed_official | 87:085cde657901 | 1233 | */ |
mbed_official | 87:085cde657901 | 1234 | |
mbed_official | 87:085cde657901 | 1235 | /** |
mbed_official | 87:085cde657901 | 1236 | * @} |
mbed_official | 87:085cde657901 | 1237 | */ |
mbed_official | 87:085cde657901 | 1238 | |
mbed_official | 87:085cde657901 | 1239 | #endif /* HAL_RCC_MODULE_ENABLED */ |
mbed_official | 87:085cde657901 | 1240 | /** |
mbed_official | 87:085cde657901 | 1241 | * @} |
mbed_official | 87:085cde657901 | 1242 | */ |
mbed_official | 87:085cde657901 | 1243 | |
mbed_official | 87:085cde657901 | 1244 | /** |
mbed_official | 87:085cde657901 | 1245 | * @} |
mbed_official | 87:085cde657901 | 1246 | */ |
mbed_official | 87:085cde657901 | 1247 | |
mbed_official | 87:085cde657901 | 1248 | /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ |