long dao
Mbed for VNG board
Fork of
mbed-src
by 
mbed official
targets/cmsis/TARGET_STM/TARGET_STM32L1/stm32l1xx_hal_comp.c@394:83f921546702, 2014-11-07 (annotated)
- Committer:
- mbed_official
- Date:
- Fri Nov 07 15:45:07 2014 +0000
- Revision:
- 394:83f921546702
- Parent:
- targets/cmsis/TARGET_STM/TARGET_NUCLEO_L152RE/stm32l1xx_hal_comp.c@354:e67efb2aab0e
Synchronized with git revision aab52cb7ec5a665869e507dd988bbfd55b7e087e
Full URL: https://github.com/mbedmicro/mbed/commit/aab52cb7ec5a665869e507dd988bbfd55b7e087e/
Tests: Fix cpputest testrunner
Who changed what in which revision?
| User | Revision | Line number | New contents of line |
|---|---|---|---|
| mbed_official | 354:e67efb2aab0e | 1 | /** |
| mbed_official | 354:e67efb2aab0e | 2 | ****************************************************************************** |
| mbed_official | 354:e67efb2aab0e | 3 | * @file stm32l1xx_hal_comp.c |
| mbed_official | 354:e67efb2aab0e | 4 | * @author MCD Application Team |
| mbed_official | 354:e67efb2aab0e | 5 | * @version V1.0.0 |
| mbed_official | 354:e67efb2aab0e | 6 | * @date 5-September-2014 |
| mbed_official | 354:e67efb2aab0e | 7 | * @brief COMP HAL module driver. |
| mbed_official | 354:e67efb2aab0e | 8 | * |
| mbed_official | 354:e67efb2aab0e | 9 | * This file provides firmware functions to manage the following |
| mbed_official | 354:e67efb2aab0e | 10 | * functionalities of the COMP peripheral: |
| mbed_official | 354:e67efb2aab0e | 11 | * + Initialization and de-initialization functions |
| mbed_official | 354:e67efb2aab0e | 12 | * + I/O operation functions |
| mbed_official | 354:e67efb2aab0e | 13 | * + Peripheral Control functions |
| mbed_official | 354:e67efb2aab0e | 14 | * + Peripheral State functions |
| mbed_official | 354:e67efb2aab0e | 15 | * |
| mbed_official | 354:e67efb2aab0e | 16 | @verbatim |
| mbed_official | 354:e67efb2aab0e | 17 | ================================================================================ |
| mbed_official | 354:e67efb2aab0e | 18 | ##### COMP Peripheral features ##### |
| mbed_official | 354:e67efb2aab0e | 19 | ================================================================================ |
| mbed_official | 354:e67efb2aab0e | 20 | |
| mbed_official | 354:e67efb2aab0e | 21 | [..] |
| mbed_official | 354:e67efb2aab0e | 22 | The STM32L1xx device family integrates 2 analog comparators COMP1 and |
| mbed_official | 354:e67efb2aab0e | 23 | COMP2: |
| mbed_official | 354:e67efb2aab0e | 24 | (#) The non inverting input and inverting input can be set to GPIO pins. |
| mbed_official | 354:e67efb2aab0e | 25 | Refer to "table1. COMP Inputs" below. |
| mbed_official | 354:e67efb2aab0e | 26 | HAL COMP driver configures the Routing Interface (RI) to connect the |
| mbed_official | 354:e67efb2aab0e | 27 | selected I/O pins to comparator input. |
| mbed_official | 354:e67efb2aab0e | 28 | Caution: Comparator COMP1 and ADC cannot be used at the same time as |
| mbed_official | 354:e67efb2aab0e | 29 | ADC since they share the ADC switch matrix: COMP1 non-inverting |
| mbed_official | 354:e67efb2aab0e | 30 | input is routed through ADC switch matrix. Except if ADC is intented |
| mbed_official | 354:e67efb2aab0e | 31 | to measure voltage on COMP1 non-inverting input: it can be performed |
| mbed_official | 354:e67efb2aab0e | 32 | on ADC channel VCOMP. |
| mbed_official | 354:e67efb2aab0e | 33 | |
| mbed_official | 354:e67efb2aab0e | 34 | (#) The COMP output is available using HAL_COMP_GetOutputLevel(). |
| mbed_official | 354:e67efb2aab0e | 35 | |
| mbed_official | 354:e67efb2aab0e | 36 | (#) The COMP output can be redirected to embedded timers (TIM2, TIM3, |
| mbed_official | 354:e67efb2aab0e | 37 | TIM4, TIM10). |
| mbed_official | 354:e67efb2aab0e | 38 | COMP output cannot be redirected to any I/O pin. |
| mbed_official | 354:e67efb2aab0e | 39 | Refer to "table 2. COMP Outputs redirection to embedded timers" below. |
| mbed_official | 354:e67efb2aab0e | 40 | |
| mbed_official | 354:e67efb2aab0e | 41 | (#) The comparators COMP1 and COMP2 can be combined in window mode. |
| mbed_official | 354:e67efb2aab0e | 42 | In this mode, COMP2 non inverting input is used as common |
| mbed_official | 354:e67efb2aab0e | 43 | non-inverting input. |
| mbed_official | 354:e67efb2aab0e | 44 | |
| mbed_official | 354:e67efb2aab0e | 45 | (#) The 2 comparators have interrupt capability with wake-up |
| mbed_official | 354:e67efb2aab0e | 46 | from Sleep and Stop modes (through the EXTI controller): |
| mbed_official | 354:e67efb2aab0e | 47 | (++) COMP1 is internally connected to EXTI Line 21 |
| mbed_official | 354:e67efb2aab0e | 48 | (++) COMP2 is internally connected to EXTI Line 22 |
| mbed_official | 354:e67efb2aab0e | 49 | |
| mbed_official | 354:e67efb2aab0e | 50 | From the corresponding IRQ handler, the right interrupt source can be |
| mbed_official | 354:e67efb2aab0e | 51 | retrieved with macro __HAL_COMP_EXTI_GET_FLAG(). Possible values are: |
| mbed_official | 354:e67efb2aab0e | 52 | (++) COMP_EXTI_LINE_COMP1_EVENT |
| mbed_official | 354:e67efb2aab0e | 53 | (++) COMP_EXTI_LINE_COMP2_EVENT |
| mbed_official | 354:e67efb2aab0e | 54 | |
| mbed_official | 354:e67efb2aab0e | 55 | (#) The comparators also offer the possibility to ouput the voltage |
| mbed_official | 354:e67efb2aab0e | 56 | reference (VrefInt), used on inverting inputs, on I/O pin through |
| mbed_official | 354:e67efb2aab0e | 57 | a buffer. To use it, refer to macro "__HAL_VREFINT_OUT_ENABLE()". |
| mbed_official | 354:e67efb2aab0e | 58 | |
| mbed_official | 354:e67efb2aab0e | 59 | |
| mbed_official | 354:e67efb2aab0e | 60 | [..] Table 1. COMP Inputs for the STM32L1xx devices |
| mbed_official | 354:e67efb2aab0e | 61 | +----------------------------------------------------------------------+ |
| mbed_official | 354:e67efb2aab0e | 62 | | | | COMP1 | COMP2 | |
| mbed_official | 354:e67efb2aab0e | 63 | |-----------------|--------------------------------|---------|---------| |
| mbed_official | 354:e67efb2aab0e | 64 | | | 1/4 VREFINT | -- | OK | |
| mbed_official | 354:e67efb2aab0e | 65 | | | 1/2 VREFINT | -- | OK | |
| mbed_official | 354:e67efb2aab0e | 66 | | | 3/4 VREFINT | -- | OK | |
| mbed_official | 354:e67efb2aab0e | 67 | | Inverting | VREFINT | OK | OK | |
| mbed_official | 354:e67efb2aab0e | 68 | | input | DAC Ch1 OUT (PA4) | -- | OK | |
| mbed_official | 354:e67efb2aab0e | 69 | | | DAC Ch2 OUT (PA5) | -- | OK | |
| mbed_official | 354:e67efb2aab0e | 70 | | | IO: PB3 | -- | OK | |
| mbed_official | 354:e67efb2aab0e | 71 | |-----------------|--------------------------------|---------|---------| |
| mbed_official | 354:e67efb2aab0e | 72 | | | IO: | | | |
| mbed_official | 354:e67efb2aab0e | 73 | | | PB4, 5, 6*, 7* | --- | OK | |
| mbed_official | 354:e67efb2aab0e | 74 | | Non-inverting | PA0*, 1*, 2*, 3*, 4, 5, 6, 7 | OK | --- | |
| mbed_official | 354:e67efb2aab0e | 75 | | input | PB0, 1, 12, 13, 14, 15 | OK | --- | |
| mbed_official | 354:e67efb2aab0e | 76 | | | PC0, 1, 2, 3, 4, 5 | OK | --- | |
| mbed_official | 354:e67efb2aab0e | 77 | | | PE7, 8, 9, 10 | OK | --- | |
| mbed_official | 354:e67efb2aab0e | 78 | | | PF6, 7, 8, 9, 10 | OK | --- | |
| mbed_official | 354:e67efb2aab0e | 79 | | | OPAMP1 output | OK | --- | |
| mbed_official | 354:e67efb2aab0e | 80 | | | OPAMP2 output | OK | --- | |
| mbed_official | 354:e67efb2aab0e | 81 | | | OPAMP3 output** | OK | --- | |
| mbed_official | 354:e67efb2aab0e | 82 | +----------------------------------------------------------------------+ |
| mbed_official | 354:e67efb2aab0e | 83 | *: Available on devices category Cat.3, Cat.4, Cat.5 only. |
| mbed_official | 354:e67efb2aab0e | 84 | **: Available on devices category Cat.4 only. |
| mbed_official | 354:e67efb2aab0e | 85 | |
| mbed_official | 354:e67efb2aab0e | 86 | [..] Table 2. COMP Outputs redirection to embedded timers |
| mbed_official | 354:e67efb2aab0e | 87 | +-----------------------------------+ |
| mbed_official | 354:e67efb2aab0e | 88 | | COMP1 | COMP2 | |
| mbed_official | 354:e67efb2aab0e | 89 | |-----------------|-----------------| |
| mbed_official | 354:e67efb2aab0e | 90 | | | TIM2 IC4 | |
| mbed_official | 354:e67efb2aab0e | 91 | | | TIM2 OCREF CLR | |
| mbed_official | 354:e67efb2aab0e | 92 | | (no redirection | TIM3 IC4 | |
| mbed_official | 354:e67efb2aab0e | 93 | | to timers) | TIM3 OCREF CLR | |
| mbed_official | 354:e67efb2aab0e | 94 | | | TIM4 IC4 | |
| mbed_official | 354:e67efb2aab0e | 95 | | | TIM4 OCREF CLR | |
| mbed_official | 354:e67efb2aab0e | 96 | | | TIM10 IC1 | |
| mbed_official | 354:e67efb2aab0e | 97 | +-----------------------------------+ |
| mbed_official | 354:e67efb2aab0e | 98 | |
| mbed_official | 354:e67efb2aab0e | 99 | |
| mbed_official | 354:e67efb2aab0e | 100 | ##### How to use this driver ##### |
| mbed_official | 354:e67efb2aab0e | 101 | ================================================================================ |
| mbed_official | 354:e67efb2aab0e | 102 | [..] |
| mbed_official | 354:e67efb2aab0e | 103 | This driver provides functions to configure and program the Comparators of all STM32L1xx devices. |
| mbed_official | 354:e67efb2aab0e | 104 | |
| mbed_official | 354:e67efb2aab0e | 105 | To use the comparator, perform the following steps: |
| mbed_official | 354:e67efb2aab0e | 106 | |
| mbed_official | 354:e67efb2aab0e | 107 | (#) Initialize the COMP low level resources by implementing the HAL_COMP_MspInit(). |
| mbed_official | 354:e67efb2aab0e | 108 | (++) Configure the comparator input I/O pin using HAL_GPIO_Init(): |
| mbed_official | 354:e67efb2aab0e | 109 | - For all inputs: I/O pin in analog mode (Schmitt trigger disabled) |
| mbed_official | 354:e67efb2aab0e | 110 | - Possible alternate configuration, for non-inverting inputs of comparator 2: I/O pin in floating mode (Schmitt trigger enabled). |
| mbed_official | 354:e67efb2aab0e | 111 | It is recommended to use analog configuration to avoid any overconsumption around VDD/2. |
| mbed_official | 354:e67efb2aab0e | 112 | (++) Enable COMP Peripheral clock using macro __COMP_CLK_ENABLE() |
| mbed_official | 354:e67efb2aab0e | 113 | (++) If required enable the COMP interrupt (EXTI line Interrupt): enable |
| mbed_official | 354:e67efb2aab0e | 114 | the comparator interrupt vector using HAL_NVIC_EnableIRQ(COMP_IRQn) |
| mbed_official | 354:e67efb2aab0e | 115 | and HAL_NVIC_SetPriority(COMP_IRQn, xxx, xxx) functions. |
| mbed_official | 354:e67efb2aab0e | 116 | |
| mbed_official | 354:e67efb2aab0e | 117 | (#) Configure the comparator using HAL_COMP_Init() function: |
| mbed_official | 354:e67efb2aab0e | 118 | (++) Select the inverting input (COMP2 only) |
| mbed_official | 354:e67efb2aab0e | 119 | (++) Select the non-inverting input |
| mbed_official | 354:e67efb2aab0e | 120 | (++) Select the output redirection to timers (COMP2 only) |
| mbed_official | 354:e67efb2aab0e | 121 | (++) Select the speed mode (COMP2 only) |
| mbed_official | 354:e67efb2aab0e | 122 | (++) Select the window mode (related to COMP1 and COMP2, but selected |
| mbed_official | 354:e67efb2aab0e | 123 | by COMP2 only) |
| mbed_official | 354:e67efb2aab0e | 124 | (++) Select the pull-up/down resistors on non-inverting input (COMP1 only) |
| mbed_official | 354:e67efb2aab0e | 125 | |
| mbed_official | 354:e67efb2aab0e | 126 | (#) Enable the comparator using HAL_COMP_Start() or HAL_COMP_Start_IT() |
| mbed_official | 354:e67efb2aab0e | 127 | function |
| mbed_official | 354:e67efb2aab0e | 128 | |
| mbed_official | 354:e67efb2aab0e | 129 | (#) If needed, use HAL_COMP_GetOutputLevel() or HAL_COMP_TriggerCallback() |
| mbed_official | 354:e67efb2aab0e | 130 | functions to manage comparator actions (output level or events) |
| mbed_official | 354:e67efb2aab0e | 131 | |
| mbed_official | 354:e67efb2aab0e | 132 | (#) Disable the comparator using HAL_COMP_Stop() or HAL_COMP_Stop_IT() |
| mbed_official | 354:e67efb2aab0e | 133 | function |
| mbed_official | 354:e67efb2aab0e | 134 | |
| mbed_official | 354:e67efb2aab0e | 135 | (#) De-initialize the comparator using HAL_COMP_DeInit() function |
| mbed_official | 354:e67efb2aab0e | 136 | |
| mbed_official | 354:e67efb2aab0e | 137 | |
| mbed_official | 354:e67efb2aab0e | 138 | @endverbatim |
| mbed_official | 354:e67efb2aab0e | 139 | ****************************************************************************** |
| mbed_official | 354:e67efb2aab0e | 140 | * @attention |
| mbed_official | 354:e67efb2aab0e | 141 | * |
| mbed_official | 354:e67efb2aab0e | 142 | * <h2><center>© COPYRIGHT(c) 2014 STMicroelectronics</center></h2> |
| mbed_official | 354:e67efb2aab0e | 143 | * |
| mbed_official | 354:e67efb2aab0e | 144 | * Redistribution and use in source and binary forms, with or without modification, |
| mbed_official | 354:e67efb2aab0e | 145 | * are permitted provided that the following conditions are met: |
| mbed_official | 354:e67efb2aab0e | 146 | * 1. Redistributions of source code must retain the above copyright notice, |
| mbed_official | 354:e67efb2aab0e | 147 | * this list of conditions and the following disclaimer. |
| mbed_official | 354:e67efb2aab0e | 148 | * 2. Redistributions in binary form must reproduce the above copyright notice, |
| mbed_official | 354:e67efb2aab0e | 149 | * this list of conditions and the following disclaimer in the documentation |
| mbed_official | 354:e67efb2aab0e | 150 | * and/or other materials provided with the distribution. |
| mbed_official | 354:e67efb2aab0e | 151 | * 3. Neither the name of STMicroelectronics nor the names of its contributors |
| mbed_official | 354:e67efb2aab0e | 152 | * may be used to endorse or promote products derived from this software |
| mbed_official | 354:e67efb2aab0e | 153 | * without specific prior written permission. |
| mbed_official | 354:e67efb2aab0e | 154 | * |
| mbed_official | 354:e67efb2aab0e | 155 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
| mbed_official | 354:e67efb2aab0e | 156 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| mbed_official | 354:e67efb2aab0e | 157 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| mbed_official | 354:e67efb2aab0e | 158 | * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE |
| mbed_official | 354:e67efb2aab0e | 159 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| mbed_official | 354:e67efb2aab0e | 160 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
| mbed_official | 354:e67efb2aab0e | 161 | * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
| mbed_official | 354:e67efb2aab0e | 162 | * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
| mbed_official | 354:e67efb2aab0e | 163 | * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| mbed_official | 354:e67efb2aab0e | 164 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| mbed_official | 354:e67efb2aab0e | 165 | * |
| mbed_official | 354:e67efb2aab0e | 166 | ****************************************************************************** |
| mbed_official | 354:e67efb2aab0e | 167 | */ |
| mbed_official | 354:e67efb2aab0e | 168 | |
| mbed_official | 354:e67efb2aab0e | 169 | /* Includes ------------------------------------------------------------------*/ |
| mbed_official | 354:e67efb2aab0e | 170 | #include "stm32l1xx_hal.h" |
| mbed_official | 354:e67efb2aab0e | 171 | |
| mbed_official | 354:e67efb2aab0e | 172 | /** @addtogroup STM32L1xx_HAL_Driver |
| mbed_official | 354:e67efb2aab0e | 173 | * @{ |
| mbed_official | 354:e67efb2aab0e | 174 | */ |
| mbed_official | 354:e67efb2aab0e | 175 | |
| mbed_official | 354:e67efb2aab0e | 176 | /** @defgroup COMP COMP |
| mbed_official | 354:e67efb2aab0e | 177 | * @brief COMP HAL module driver |
| mbed_official | 354:e67efb2aab0e | 178 | * @{ |
| mbed_official | 354:e67efb2aab0e | 179 | */ |
| mbed_official | 354:e67efb2aab0e | 180 | |
| mbed_official | 354:e67efb2aab0e | 181 | #ifdef HAL_COMP_MODULE_ENABLED |
| mbed_official | 354:e67efb2aab0e | 182 | |
| mbed_official | 354:e67efb2aab0e | 183 | /* Private typedef -----------------------------------------------------------*/ |
| mbed_official | 354:e67efb2aab0e | 184 | /* Private define ------------------------------------------------------------*/ |
| mbed_official | 354:e67efb2aab0e | 185 | |
| mbed_official | 354:e67efb2aab0e | 186 | /** @defgroup COMP_Private_Constants COMP Private Constants |
| mbed_official | 354:e67efb2aab0e | 187 | * @{ |
| mbed_official | 354:e67efb2aab0e | 188 | */ |
| mbed_official | 354:e67efb2aab0e | 189 | /* Delay for COMP startup time. */ |
| mbed_official | 354:e67efb2aab0e | 190 | /* Maximum delay is 10us for comparator 1 and 25us for comparator 2 in slow */ |
| mbed_official | 354:e67efb2aab0e | 191 | /* mode (refer to device datasheet, parameter tSTART). */ |
| mbed_official | 354:e67efb2aab0e | 192 | /* Delay in CPU cycles, fixed to worst case: maximum CPU frequency 32MHz to */ |
| mbed_official | 354:e67efb2aab0e | 193 | /* have the minimum number of CPU cycles to fulfill this delay. */ |
| mbed_official | 354:e67efb2aab0e | 194 | /* - Comparator 1: delay minimum of 320 CPU cyles. Wait loop takes 3 CPU */ |
| mbed_official | 354:e67efb2aab0e | 195 | /* cycles per iteration, therefore total wait iterations */ |
| mbed_official | 354:e67efb2aab0e | 196 | /* number must be initialized at 106 iterations. */ |
| mbed_official | 354:e67efb2aab0e | 197 | /* - Comparator 2: delay minimum of 800 CPU cyles. Wait loop takes 3 CPU */ |
| mbed_official | 354:e67efb2aab0e | 198 | /* cycles per iteration, therefore total wait iterations */ |
| mbed_official | 354:e67efb2aab0e | 199 | /* number must be initialized at 266 iterations. */ |
| mbed_official | 354:e67efb2aab0e | 200 | #define COMP1_START_DELAY_CPU_CYCLES ((uint32_t)106) |
| mbed_official | 354:e67efb2aab0e | 201 | #define COMP2_START_DELAY_CPU_CYCLES ((uint32_t)266) |
| mbed_official | 354:e67efb2aab0e | 202 | |
| mbed_official | 354:e67efb2aab0e | 203 | /* Comparator status "locked": to update COMP handle state (software lock */ |
| mbed_official | 354:e67efb2aab0e | 204 | /* only on COMP of STM32L1xx devices) by bitfield: */ |
| mbed_official | 354:e67efb2aab0e | 205 | /* states HAL_COMP_STATE_READY_LOCKED, HAL_COMP_STATE_BUSY_LOCKED. */ |
| mbed_official | 354:e67efb2aab0e | 206 | #define COMP_STATE_BIT_LOCK ((uint32_t) 0x00000010) |
| mbed_official | 354:e67efb2aab0e | 207 | |
| mbed_official | 354:e67efb2aab0e | 208 | /** |
| mbed_official | 354:e67efb2aab0e | 209 | * @} |
| mbed_official | 354:e67efb2aab0e | 210 | */ |
| mbed_official | 354:e67efb2aab0e | 211 | |
| mbed_official | 354:e67efb2aab0e | 212 | |
| mbed_official | 354:e67efb2aab0e | 213 | /* Private macro -------------------------------------------------------------*/ |
| mbed_official | 354:e67efb2aab0e | 214 | /* Private variables ---------------------------------------------------------*/ |
| mbed_official | 354:e67efb2aab0e | 215 | /* Private function prototypes -----------------------------------------------*/ |
| mbed_official | 354:e67efb2aab0e | 216 | /* Private functions ---------------------------------------------------------*/ |
| mbed_official | 354:e67efb2aab0e | 217 | |
| mbed_official | 354:e67efb2aab0e | 218 | /** @defgroup COMP_Exported_Functions COMP Exported Functions |
| mbed_official | 354:e67efb2aab0e | 219 | * @{ |
| mbed_official | 354:e67efb2aab0e | 220 | */ |
| mbed_official | 354:e67efb2aab0e | 221 | |
| mbed_official | 354:e67efb2aab0e | 222 | /** @defgroup COMP_Exported_Functions_Group1 Initialization and de-initialization functions |
| mbed_official | 354:e67efb2aab0e | 223 | * @brief Initialization and Configuration functions |
| mbed_official | 354:e67efb2aab0e | 224 | * |
| mbed_official | 354:e67efb2aab0e | 225 | @verbatim |
| mbed_official | 354:e67efb2aab0e | 226 | =============================================================================== |
| mbed_official | 354:e67efb2aab0e | 227 | ##### Initialization and de-initialization functions ##### |
| mbed_official | 354:e67efb2aab0e | 228 | =============================================================================== |
| mbed_official | 354:e67efb2aab0e | 229 | [..] This section provides functions to initialize and de-initialize comparators |
| mbed_official | 354:e67efb2aab0e | 230 | |
| mbed_official | 354:e67efb2aab0e | 231 | @endverbatim |
| mbed_official | 354:e67efb2aab0e | 232 | * @{ |
| mbed_official | 354:e67efb2aab0e | 233 | */ |
| mbed_official | 354:e67efb2aab0e | 234 | |
| mbed_official | 354:e67efb2aab0e | 235 | /** |
| mbed_official | 354:e67efb2aab0e | 236 | * @brief Initializes the COMP according to the specified |
| mbed_official | 354:e67efb2aab0e | 237 | * parameters in the COMP_InitTypeDef and create the associated handle. |
| mbed_official | 354:e67efb2aab0e | 238 | * @note If the selected comparator is locked, initialization can't be performed. |
| mbed_official | 354:e67efb2aab0e | 239 | * To unlock the configuration, perform a system reset. |
| mbed_official | 354:e67efb2aab0e | 240 | * @param hcomp: COMP handle |
| mbed_official | 354:e67efb2aab0e | 241 | * @retval HAL status |
| mbed_official | 354:e67efb2aab0e | 242 | */ |
| mbed_official | 354:e67efb2aab0e | 243 | HAL_StatusTypeDef HAL_COMP_Init(COMP_HandleTypeDef *hcomp) |
| mbed_official | 354:e67efb2aab0e | 244 | { |
| mbed_official | 354:e67efb2aab0e | 245 | HAL_StatusTypeDef status = HAL_OK; |
| mbed_official | 354:e67efb2aab0e | 246 | |
| mbed_official | 354:e67efb2aab0e | 247 | /* Check the COMP handle allocation and lock status */ |
| mbed_official | 354:e67efb2aab0e | 248 | if((hcomp == HAL_NULL) || ((hcomp->State & COMP_STATE_BIT_LOCK) != RESET)) |
| mbed_official | 354:e67efb2aab0e | 249 | { |
| mbed_official | 354:e67efb2aab0e | 250 | status = HAL_ERROR; |
| mbed_official | 354:e67efb2aab0e | 251 | } |
| mbed_official | 354:e67efb2aab0e | 252 | else |
| mbed_official | 354:e67efb2aab0e | 253 | { |
| mbed_official | 354:e67efb2aab0e | 254 | /* Check the parameter */ |
| mbed_official | 354:e67efb2aab0e | 255 | assert_param(IS_COMP_ALL_INSTANCE(hcomp->Instance)); |
| mbed_official | 354:e67efb2aab0e | 256 | |
| mbed_official | 354:e67efb2aab0e | 257 | if (hcomp->Instance == COMP1) |
| mbed_official | 354:e67efb2aab0e | 258 | { |
| mbed_official | 354:e67efb2aab0e | 259 | assert_param(IS_COMP_NONINVERTINGINPUTPULL(hcomp->Init.NonInvertingInputPull)); |
| mbed_official | 354:e67efb2aab0e | 260 | } |
| mbed_official | 354:e67efb2aab0e | 261 | else /* if (hcomp->Instance == COMP2) */ |
| mbed_official | 354:e67efb2aab0e | 262 | { |
| mbed_official | 354:e67efb2aab0e | 263 | assert_param(IS_COMP_INVERTINGINPUT(hcomp->Init.InvertingInput)); |
| mbed_official | 354:e67efb2aab0e | 264 | assert_param(IS_COMP_OUTPUT(hcomp->Init.Output)); |
| mbed_official | 354:e67efb2aab0e | 265 | assert_param(IS_COMP_MODE(hcomp->Init.Mode)); |
| mbed_official | 354:e67efb2aab0e | 266 | assert_param(IS_COMP_WINDOWMODE(hcomp->Init.WindowMode)); |
| mbed_official | 354:e67efb2aab0e | 267 | } |
| mbed_official | 354:e67efb2aab0e | 268 | |
| mbed_official | 354:e67efb2aab0e | 269 | /* In window mode, non-inverting inputs of the 2 comparators are */ |
| mbed_official | 354:e67efb2aab0e | 270 | /* connected together and are using inputs of COMP2 only. If COMP1 is */ |
| mbed_official | 354:e67efb2aab0e | 271 | /* selected, this parameter is discarded. */ |
| mbed_official | 354:e67efb2aab0e | 272 | if ((hcomp->Init.WindowMode == COMP_WINDOWMODE_DISABLED) || |
| mbed_official | 354:e67efb2aab0e | 273 | (hcomp->Instance == COMP2) ) |
| mbed_official | 354:e67efb2aab0e | 274 | { |
| mbed_official | 354:e67efb2aab0e | 275 | assert_param(IS_COMP_NONINVERTINGINPUT(hcomp->Init.NonInvertingInput)); |
| mbed_official | 354:e67efb2aab0e | 276 | } |
| mbed_official | 354:e67efb2aab0e | 277 | |
| mbed_official | 354:e67efb2aab0e | 278 | |
| mbed_official | 354:e67efb2aab0e | 279 | /* Enable SYSCFG clock and the low level hardware to access comparators */ |
| mbed_official | 354:e67efb2aab0e | 280 | if(hcomp->State == HAL_COMP_STATE_RESET) |
| mbed_official | 354:e67efb2aab0e | 281 | { |
| mbed_official | 354:e67efb2aab0e | 282 | /* Enable SYSCFG clock to control the routing Interface (RI) */ |
| mbed_official | 354:e67efb2aab0e | 283 | __SYSCFG_CLK_ENABLE(); |
| mbed_official | 354:e67efb2aab0e | 284 | |
| mbed_official | 354:e67efb2aab0e | 285 | /* Init the low level hardware */ |
| mbed_official | 354:e67efb2aab0e | 286 | HAL_COMP_MspInit(hcomp); |
| mbed_official | 354:e67efb2aab0e | 287 | } |
| mbed_official | 354:e67efb2aab0e | 288 | |
| mbed_official | 354:e67efb2aab0e | 289 | /* Configuration of comparator: */ |
| mbed_official | 354:e67efb2aab0e | 290 | /* - Output selection */ |
| mbed_official | 354:e67efb2aab0e | 291 | /* - Inverting input selection */ |
| mbed_official | 354:e67efb2aab0e | 292 | /* - Window mode */ |
| mbed_official | 354:e67efb2aab0e | 293 | /* - Mode fast/slow speed */ |
| mbed_official | 354:e67efb2aab0e | 294 | /* - Inverting input pull-up/down resistors */ |
| mbed_official | 354:e67efb2aab0e | 295 | |
| mbed_official | 354:e67efb2aab0e | 296 | /* Configuration depending on comparator instance */ |
| mbed_official | 354:e67efb2aab0e | 297 | if (hcomp->Instance == COMP1) |
| mbed_official | 354:e67efb2aab0e | 298 | { |
| mbed_official | 354:e67efb2aab0e | 299 | MODIFY_REG(COMP->CSR, COMP_CSR_400KPD | COMP_CSR_10KPD | COMP_CSR_400KPU | COMP_CSR_10KPU, |
| mbed_official | 354:e67efb2aab0e | 300 | hcomp->Init.NonInvertingInputPull ); |
| mbed_official | 354:e67efb2aab0e | 301 | } |
| mbed_official | 354:e67efb2aab0e | 302 | else /* if (hcomp->Instance == COMP2) */ |
| mbed_official | 354:e67efb2aab0e | 303 | { |
| mbed_official | 354:e67efb2aab0e | 304 | /* Note: If comparator 2 is not enabled, inverting input (parameter */ |
| mbed_official | 354:e67efb2aab0e | 305 | /* "hcomp->Init.InvertingInput") is configured into function */ |
| mbed_official | 354:e67efb2aab0e | 306 | /* "HAL_COMP_Start()" since inverting input selection also */ |
| mbed_official | 354:e67efb2aab0e | 307 | /* enables the comparator 2. */ |
| mbed_official | 354:e67efb2aab0e | 308 | /* If comparator 2 is already enabled, inverting input is */ |
| mbed_official | 354:e67efb2aab0e | 309 | /* reconfigured on the fly. */ |
| mbed_official | 354:e67efb2aab0e | 310 | if (__COMP_IS_ENABLED(hcomp) == RESET) |
| mbed_official | 354:e67efb2aab0e | 311 | { |
| mbed_official | 354:e67efb2aab0e | 312 | MODIFY_REG(COMP->CSR, COMP_CSR_OUTSEL | |
| mbed_official | 354:e67efb2aab0e | 313 | COMP_CSR_WNDWE | |
| mbed_official | 354:e67efb2aab0e | 314 | COMP_CSR_SPEED , |
| mbed_official | 354:e67efb2aab0e | 315 | hcomp->Init.Output | |
| mbed_official | 354:e67efb2aab0e | 316 | hcomp->Init.WindowMode | |
| mbed_official | 354:e67efb2aab0e | 317 | hcomp->Init.Mode ); |
| mbed_official | 354:e67efb2aab0e | 318 | } |
| mbed_official | 354:e67efb2aab0e | 319 | else |
| mbed_official | 354:e67efb2aab0e | 320 | { |
| mbed_official | 354:e67efb2aab0e | 321 | MODIFY_REG(COMP->CSR, COMP_CSR_OUTSEL | |
| mbed_official | 354:e67efb2aab0e | 322 | COMP_CSR_INSEL | |
| mbed_official | 354:e67efb2aab0e | 323 | COMP_CSR_WNDWE | |
| mbed_official | 354:e67efb2aab0e | 324 | COMP_CSR_SPEED , |
| mbed_official | 354:e67efb2aab0e | 325 | hcomp->Init.Output | |
| mbed_official | 354:e67efb2aab0e | 326 | hcomp->Init.InvertingInput | |
| mbed_official | 354:e67efb2aab0e | 327 | hcomp->Init.WindowMode | |
| mbed_official | 354:e67efb2aab0e | 328 | hcomp->Init.Mode ); |
| mbed_official | 354:e67efb2aab0e | 329 | } |
| mbed_official | 354:e67efb2aab0e | 330 | } |
| mbed_official | 354:e67efb2aab0e | 331 | |
| mbed_official | 354:e67efb2aab0e | 332 | /* Configure Routing Interface (RI) switches for comparator non-inverting */ |
| mbed_official | 354:e67efb2aab0e | 333 | /* input. */ |
| mbed_official | 354:e67efb2aab0e | 334 | /* Except in 2 cases: */ |
| mbed_official | 354:e67efb2aab0e | 335 | /* - if non-inverting input has no selection: it can be the case for */ |
| mbed_official | 354:e67efb2aab0e | 336 | /* COMP1 in window mode. */ |
| mbed_official | 354:e67efb2aab0e | 337 | /* - particular case for PC3: if switch COMP1_SW1 is closed */ |
| mbed_official | 354:e67efb2aab0e | 338 | /* (by macro "__HAL_OPAMP_OPAMP3OUT_CONNECT_ADC_COMP1()" or */ |
| mbed_official | 354:e67efb2aab0e | 339 | /* "__HAL_RI_SWITCH_COMP1_SW1_CLOSE()"), connection between pin PC3 */ |
| mbed_official | 354:e67efb2aab0e | 340 | /* (or OPAMP3, if available) and COMP1 is done directly, without going */ |
| mbed_official | 354:e67efb2aab0e | 341 | /* through ADC switch matrix. */ |
| mbed_official | 354:e67efb2aab0e | 342 | if (__COMP_ROUTING_INTERFACE_TOBECONFIGURED(hcomp)) |
| mbed_official | 354:e67efb2aab0e | 343 | { |
| mbed_official | 354:e67efb2aab0e | 344 | if (hcomp->Instance == COMP1) |
| mbed_official | 354:e67efb2aab0e | 345 | { |
| mbed_official | 354:e67efb2aab0e | 346 | /* Enable the switch control mode */ |
| mbed_official | 354:e67efb2aab0e | 347 | __HAL_RI_SWITCHCONTROLMODE_ENABLE(); |
| mbed_official | 354:e67efb2aab0e | 348 | |
| mbed_official | 354:e67efb2aab0e | 349 | /* Close the analog switch of ADC switch matrix to COMP1 (ADC */ |
| mbed_official | 354:e67efb2aab0e | 350 | /* channel 26: Vcomp) */ |
| mbed_official | 354:e67efb2aab0e | 351 | __HAL_RI_IOSWITCH_CLOSE(RI_IOSWITCH_VCOMP); |
| mbed_official | 354:e67efb2aab0e | 352 | } |
| mbed_official | 354:e67efb2aab0e | 353 | |
| mbed_official | 354:e67efb2aab0e | 354 | /* Close the I/O analog switch corresponding to comparator */ |
| mbed_official | 354:e67efb2aab0e | 355 | /* non-inverting input selected. */ |
| mbed_official | 354:e67efb2aab0e | 356 | __HAL_RI_IOSWITCH_CLOSE(hcomp->Init.NonInvertingInput); |
| mbed_official | 354:e67efb2aab0e | 357 | } |
| mbed_official | 354:e67efb2aab0e | 358 | |
| mbed_official | 354:e67efb2aab0e | 359 | |
| mbed_official | 354:e67efb2aab0e | 360 | /* Initialize the COMP state*/ |
| mbed_official | 354:e67efb2aab0e | 361 | if(hcomp->State == HAL_COMP_STATE_RESET) |
| mbed_official | 354:e67efb2aab0e | 362 | { |
| mbed_official | 354:e67efb2aab0e | 363 | hcomp->State = HAL_COMP_STATE_READY; |
| mbed_official | 354:e67efb2aab0e | 364 | } |
| mbed_official | 354:e67efb2aab0e | 365 | } |
| mbed_official | 354:e67efb2aab0e | 366 | |
| mbed_official | 354:e67efb2aab0e | 367 | return status; |
| mbed_official | 354:e67efb2aab0e | 368 | } |
| mbed_official | 354:e67efb2aab0e | 369 | |
| mbed_official | 354:e67efb2aab0e | 370 | |
| mbed_official | 354:e67efb2aab0e | 371 | /** |
| mbed_official | 354:e67efb2aab0e | 372 | * @brief DeInitializes the COMP peripheral |
| mbed_official | 354:e67efb2aab0e | 373 | * @note Deinitialization can't be performed if the COMP configuration is locked. |
| mbed_official | 354:e67efb2aab0e | 374 | * To unlock the configuration, perform a system reset. |
| mbed_official | 354:e67efb2aab0e | 375 | * @param hcomp: COMP handle |
| mbed_official | 354:e67efb2aab0e | 376 | * @retval HAL status |
| mbed_official | 354:e67efb2aab0e | 377 | */ |
| mbed_official | 354:e67efb2aab0e | 378 | HAL_StatusTypeDef HAL_COMP_DeInit(COMP_HandleTypeDef *hcomp) |
| mbed_official | 354:e67efb2aab0e | 379 | { |
| mbed_official | 354:e67efb2aab0e | 380 | HAL_StatusTypeDef status = HAL_OK; |
| mbed_official | 354:e67efb2aab0e | 381 | |
| mbed_official | 354:e67efb2aab0e | 382 | /* Check the COMP handle allocation and lock status */ |
| mbed_official | 354:e67efb2aab0e | 383 | if((hcomp == HAL_NULL) || ((hcomp->State & COMP_STATE_BIT_LOCK) != RESET)) |
| mbed_official | 354:e67efb2aab0e | 384 | { |
| mbed_official | 354:e67efb2aab0e | 385 | status = HAL_ERROR; |
| mbed_official | 354:e67efb2aab0e | 386 | } |
| mbed_official | 354:e67efb2aab0e | 387 | else |
| mbed_official | 354:e67efb2aab0e | 388 | { |
| mbed_official | 354:e67efb2aab0e | 389 | /* Check the parameter */ |
| mbed_official | 354:e67efb2aab0e | 390 | assert_param(IS_COMP_ALL_INSTANCE(hcomp->Instance)); |
| mbed_official | 354:e67efb2aab0e | 391 | |
| mbed_official | 354:e67efb2aab0e | 392 | /* Reset configuration depending on comparator instance */ |
| mbed_official | 354:e67efb2aab0e | 393 | if (hcomp->Instance == COMP1) |
| mbed_official | 354:e67efb2aab0e | 394 | { |
| mbed_official | 354:e67efb2aab0e | 395 | CLEAR_BIT(COMP->CSR , COMP_CSR_400KPD | COMP_CSR_10KPD | COMP_CSR_400KPU | COMP_CSR_10KPU); |
| mbed_official | 354:e67efb2aab0e | 396 | } |
| mbed_official | 354:e67efb2aab0e | 397 | else /* if (hcomp->Instance == COMP2) */ |
| mbed_official | 354:e67efb2aab0e | 398 | { |
| mbed_official | 354:e67efb2aab0e | 399 | CLEAR_BIT(COMP->CSR , COMP_CSR_OUTSEL | |
| mbed_official | 354:e67efb2aab0e | 400 | COMP_CSR_WNDWE | |
| mbed_official | 354:e67efb2aab0e | 401 | COMP_CSR_INSEL | |
| mbed_official | 354:e67efb2aab0e | 402 | COMP_CSR_SPEED ); |
| mbed_official | 354:e67efb2aab0e | 403 | } |
| mbed_official | 354:e67efb2aab0e | 404 | |
| mbed_official | 354:e67efb2aab0e | 405 | |
| mbed_official | 354:e67efb2aab0e | 406 | /* Restore default state of Routing Interface (RI) switches for */ |
| mbed_official | 354:e67efb2aab0e | 407 | /* comparator non-inverting input. */ |
| mbed_official | 354:e67efb2aab0e | 408 | if (hcomp->Init.NonInvertingInput != COMP_NONINVERTINGINPUT_NONE) |
| mbed_official | 354:e67efb2aab0e | 409 | { |
| mbed_official | 354:e67efb2aab0e | 410 | /* Open the I/O analog switch corresponding to comparator */ |
| mbed_official | 354:e67efb2aab0e | 411 | /* non-inverting input selected. */ |
| mbed_official | 354:e67efb2aab0e | 412 | __HAL_RI_IOSWITCH_OPEN(hcomp->Init.NonInvertingInput); |
| mbed_official | 354:e67efb2aab0e | 413 | } |
| mbed_official | 354:e67efb2aab0e | 414 | if (hcomp->Instance == COMP1) |
| mbed_official | 354:e67efb2aab0e | 415 | { |
| mbed_official | 354:e67efb2aab0e | 416 | /* Open the analog switch of ADC switch matrix to COMP1 (ADC */ |
| mbed_official | 354:e67efb2aab0e | 417 | /* channel 26: Vcomp) */ |
| mbed_official | 354:e67efb2aab0e | 418 | __HAL_RI_IOSWITCH_OPEN(RI_IOSWITCH_VCOMP); |
| mbed_official | 354:e67efb2aab0e | 419 | |
| mbed_official | 354:e67efb2aab0e | 420 | /* Disable the switch control mode */ |
| mbed_official | 354:e67efb2aab0e | 421 | __HAL_RI_SWITCHCONTROLMODE_DISABLE(); |
| mbed_official | 354:e67efb2aab0e | 422 | } |
| mbed_official | 354:e67efb2aab0e | 423 | |
| mbed_official | 354:e67efb2aab0e | 424 | |
| mbed_official | 354:e67efb2aab0e | 425 | /* DeInit the low level hardware: SYSCFG, GPIO, CLOCK and NVIC */ |
| mbed_official | 354:e67efb2aab0e | 426 | HAL_COMP_MspDeInit(hcomp); |
| mbed_official | 354:e67efb2aab0e | 427 | |
| mbed_official | 354:e67efb2aab0e | 428 | hcomp->State = HAL_COMP_STATE_RESET; |
| mbed_official | 354:e67efb2aab0e | 429 | |
| mbed_official | 354:e67efb2aab0e | 430 | /* Process unlocked */ |
| mbed_official | 354:e67efb2aab0e | 431 | __HAL_UNLOCK(hcomp); |
| mbed_official | 354:e67efb2aab0e | 432 | } |
| mbed_official | 354:e67efb2aab0e | 433 | |
| mbed_official | 354:e67efb2aab0e | 434 | return status; |
| mbed_official | 354:e67efb2aab0e | 435 | } |
| mbed_official | 354:e67efb2aab0e | 436 | |
| mbed_official | 354:e67efb2aab0e | 437 | /** |
| mbed_official | 354:e67efb2aab0e | 438 | * @brief Initializes the COMP MSP. |
| mbed_official | 354:e67efb2aab0e | 439 | * @param hcomp: COMP handle |
| mbed_official | 354:e67efb2aab0e | 440 | * @retval None |
| mbed_official | 354:e67efb2aab0e | 441 | */ |
| mbed_official | 354:e67efb2aab0e | 442 | __weak void HAL_COMP_MspInit(COMP_HandleTypeDef *hcomp) |
| mbed_official | 354:e67efb2aab0e | 443 | { |
| mbed_official | 354:e67efb2aab0e | 444 | /* NOTE : This function Should not be modified, when the callback is needed, |
| mbed_official | 354:e67efb2aab0e | 445 | the HAL_COMP_MspInit could be implenetd in the user file |
| mbed_official | 354:e67efb2aab0e | 446 | */ |
| mbed_official | 354:e67efb2aab0e | 447 | } |
| mbed_official | 354:e67efb2aab0e | 448 | |
| mbed_official | 354:e67efb2aab0e | 449 | /** |
| mbed_official | 354:e67efb2aab0e | 450 | * @brief DeInitializes COMP MSP. |
| mbed_official | 354:e67efb2aab0e | 451 | * @param hcomp: COMP handle |
| mbed_official | 354:e67efb2aab0e | 452 | * @retval None |
| mbed_official | 354:e67efb2aab0e | 453 | */ |
| mbed_official | 354:e67efb2aab0e | 454 | __weak void HAL_COMP_MspDeInit(COMP_HandleTypeDef *hcomp) |
| mbed_official | 354:e67efb2aab0e | 455 | { |
| mbed_official | 354:e67efb2aab0e | 456 | /* NOTE : This function Should not be modified, when the callback is needed, |
| mbed_official | 354:e67efb2aab0e | 457 | the HAL_COMP_MspDeInit could be implenetd in the user file |
| mbed_official | 354:e67efb2aab0e | 458 | */ |
| mbed_official | 354:e67efb2aab0e | 459 | } |
| mbed_official | 354:e67efb2aab0e | 460 | |
| mbed_official | 354:e67efb2aab0e | 461 | /** |
| mbed_official | 354:e67efb2aab0e | 462 | * @} |
| mbed_official | 354:e67efb2aab0e | 463 | */ |
| mbed_official | 354:e67efb2aab0e | 464 | |
| mbed_official | 354:e67efb2aab0e | 465 | /** @defgroup COMP_Exported_Functions_Group2 I/O operation functions |
| mbed_official | 354:e67efb2aab0e | 466 | * @brief I/O operation functions |
| mbed_official | 354:e67efb2aab0e | 467 | * |
| mbed_official | 354:e67efb2aab0e | 468 | @verbatim |
| mbed_official | 354:e67efb2aab0e | 469 | =============================================================================== |
| mbed_official | 354:e67efb2aab0e | 470 | ##### IO operation functions ##### |
| mbed_official | 354:e67efb2aab0e | 471 | =============================================================================== |
| mbed_official | 354:e67efb2aab0e | 472 | [..] |
| mbed_official | 354:e67efb2aab0e | 473 | This subsection provides a set of functions allowing to manage the COMP |
| mbed_official | 354:e67efb2aab0e | 474 | start and stop actions with or without interruption on ExtI line. |
| mbed_official | 354:e67efb2aab0e | 475 | |
| mbed_official | 354:e67efb2aab0e | 476 | @endverbatim |
| mbed_official | 354:e67efb2aab0e | 477 | * @{ |
| mbed_official | 354:e67efb2aab0e | 478 | */ |
| mbed_official | 354:e67efb2aab0e | 479 | |
| mbed_official | 354:e67efb2aab0e | 480 | /** |
| mbed_official | 354:e67efb2aab0e | 481 | * @brief Start the comparator |
| mbed_official | 354:e67efb2aab0e | 482 | * @param hcomp: COMP handle |
| mbed_official | 354:e67efb2aab0e | 483 | * @retval HAL status |
| mbed_official | 354:e67efb2aab0e | 484 | */ |
| mbed_official | 354:e67efb2aab0e | 485 | HAL_StatusTypeDef HAL_COMP_Start(COMP_HandleTypeDef *hcomp) |
| mbed_official | 354:e67efb2aab0e | 486 | { |
| mbed_official | 354:e67efb2aab0e | 487 | HAL_StatusTypeDef status = HAL_OK; |
| mbed_official | 354:e67efb2aab0e | 488 | uint32_t wait_loop_cycles = 0; |
| mbed_official | 354:e67efb2aab0e | 489 | __IO uint32_t wait_loop_index = 0; |
| mbed_official | 354:e67efb2aab0e | 490 | |
| mbed_official | 354:e67efb2aab0e | 491 | /* Check the COMP handle allocation and lock status */ |
| mbed_official | 354:e67efb2aab0e | 492 | if((hcomp == HAL_NULL) || ((hcomp->State & COMP_STATE_BIT_LOCK) != RESET)) |
| mbed_official | 354:e67efb2aab0e | 493 | { |
| mbed_official | 354:e67efb2aab0e | 494 | status = HAL_ERROR; |
| mbed_official | 354:e67efb2aab0e | 495 | } |
| mbed_official | 354:e67efb2aab0e | 496 | else |
| mbed_official | 354:e67efb2aab0e | 497 | { |
| mbed_official | 354:e67efb2aab0e | 498 | /* Check the parameter */ |
| mbed_official | 354:e67efb2aab0e | 499 | assert_param(IS_COMP_ALL_INSTANCE(hcomp->Instance)); |
| mbed_official | 354:e67efb2aab0e | 500 | |
| mbed_official | 354:e67efb2aab0e | 501 | if(hcomp->State == HAL_COMP_STATE_READY) |
| mbed_official | 354:e67efb2aab0e | 502 | { |
| mbed_official | 354:e67efb2aab0e | 503 | |
| mbed_official | 354:e67efb2aab0e | 504 | /* Note: For comparator 2, inverting input (parameter */ |
| mbed_official | 354:e67efb2aab0e | 505 | /* "hcomp->Init.InvertingInput") is configured into this */ |
| mbed_official | 354:e67efb2aab0e | 506 | /* function instead of function "HAL_COMP_Init()" since */ |
| mbed_official | 354:e67efb2aab0e | 507 | /* inverting input selection also enables the comparator 2. */ |
| mbed_official | 354:e67efb2aab0e | 508 | __HAL_COMP_ENABLE(hcomp); |
| mbed_official | 354:e67efb2aab0e | 509 | |
| mbed_official | 354:e67efb2aab0e | 510 | /* Set delay for COMP startup time */ |
| mbed_official | 354:e67efb2aab0e | 511 | if (hcomp->Instance == COMP1) |
| mbed_official | 354:e67efb2aab0e | 512 | { |
| mbed_official | 354:e67efb2aab0e | 513 | wait_loop_cycles = COMP1_START_DELAY_CPU_CYCLES; |
| mbed_official | 354:e67efb2aab0e | 514 | } |
| mbed_official | 354:e67efb2aab0e | 515 | else /* if (hcomp->Instance == COMP2) */ |
| mbed_official | 354:e67efb2aab0e | 516 | { |
| mbed_official | 354:e67efb2aab0e | 517 | wait_loop_cycles = COMP2_START_DELAY_CPU_CYCLES; |
| mbed_official | 354:e67efb2aab0e | 518 | } |
| mbed_official | 354:e67efb2aab0e | 519 | |
| mbed_official | 354:e67efb2aab0e | 520 | /* Delay for COMP startup time. */ |
| mbed_official | 354:e67efb2aab0e | 521 | /* Delay fixed to worst case: maximum CPU frequency */ |
| mbed_official | 354:e67efb2aab0e | 522 | while(wait_loop_index < wait_loop_cycles) |
| mbed_official | 354:e67efb2aab0e | 523 | { |
| mbed_official | 354:e67efb2aab0e | 524 | wait_loop_index++; |
| mbed_official | 354:e67efb2aab0e | 525 | } |
| mbed_official | 354:e67efb2aab0e | 526 | |
| mbed_official | 354:e67efb2aab0e | 527 | /* Update COMP state */ |
| mbed_official | 354:e67efb2aab0e | 528 | hcomp->State = HAL_COMP_STATE_BUSY; |
| mbed_official | 354:e67efb2aab0e | 529 | |
| mbed_official | 354:e67efb2aab0e | 530 | } |
| mbed_official | 354:e67efb2aab0e | 531 | else |
| mbed_official | 354:e67efb2aab0e | 532 | { |
| mbed_official | 354:e67efb2aab0e | 533 | status = HAL_ERROR; |
| mbed_official | 354:e67efb2aab0e | 534 | } |
| mbed_official | 354:e67efb2aab0e | 535 | } |
| mbed_official | 354:e67efb2aab0e | 536 | |
| mbed_official | 354:e67efb2aab0e | 537 | return status; |
| mbed_official | 354:e67efb2aab0e | 538 | } |
| mbed_official | 354:e67efb2aab0e | 539 | |
| mbed_official | 354:e67efb2aab0e | 540 | /** |
| mbed_official | 354:e67efb2aab0e | 541 | * @brief Stop the comparator |
| mbed_official | 354:e67efb2aab0e | 542 | * @param hcomp: COMP handle |
| mbed_official | 354:e67efb2aab0e | 543 | * @retval HAL status |
| mbed_official | 354:e67efb2aab0e | 544 | */ |
| mbed_official | 354:e67efb2aab0e | 545 | HAL_StatusTypeDef HAL_COMP_Stop(COMP_HandleTypeDef *hcomp) |
| mbed_official | 354:e67efb2aab0e | 546 | { |
| mbed_official | 354:e67efb2aab0e | 547 | HAL_StatusTypeDef status = HAL_OK; |
| mbed_official | 354:e67efb2aab0e | 548 | |
| mbed_official | 354:e67efb2aab0e | 549 | /* Check the COMP handle allocation and lock status */ |
| mbed_official | 354:e67efb2aab0e | 550 | if((hcomp == HAL_NULL) || ((hcomp->State & COMP_STATE_BIT_LOCK) != RESET)) |
| mbed_official | 354:e67efb2aab0e | 551 | { |
| mbed_official | 354:e67efb2aab0e | 552 | status = HAL_ERROR; |
| mbed_official | 354:e67efb2aab0e | 553 | } |
| mbed_official | 354:e67efb2aab0e | 554 | else |
| mbed_official | 354:e67efb2aab0e | 555 | { |
| mbed_official | 354:e67efb2aab0e | 556 | /* Check the parameter */ |
| mbed_official | 354:e67efb2aab0e | 557 | assert_param(IS_COMP_ALL_INSTANCE(hcomp->Instance)); |
| mbed_official | 354:e67efb2aab0e | 558 | |
| mbed_official | 354:e67efb2aab0e | 559 | if(hcomp->State == HAL_COMP_STATE_BUSY) |
| mbed_official | 354:e67efb2aab0e | 560 | { |
| mbed_official | 354:e67efb2aab0e | 561 | /* Disable the selected comparator */ |
| mbed_official | 354:e67efb2aab0e | 562 | __HAL_COMP_DISABLE(hcomp); |
| mbed_official | 354:e67efb2aab0e | 563 | |
| mbed_official | 354:e67efb2aab0e | 564 | /* Update COMP state */ |
| mbed_official | 354:e67efb2aab0e | 565 | hcomp->State = HAL_COMP_STATE_READY; |
| mbed_official | 354:e67efb2aab0e | 566 | } |
| mbed_official | 354:e67efb2aab0e | 567 | else |
| mbed_official | 354:e67efb2aab0e | 568 | { |
| mbed_official | 354:e67efb2aab0e | 569 | status = HAL_ERROR; |
| mbed_official | 354:e67efb2aab0e | 570 | } |
| mbed_official | 354:e67efb2aab0e | 571 | } |
| mbed_official | 354:e67efb2aab0e | 572 | |
| mbed_official | 354:e67efb2aab0e | 573 | return status; |
| mbed_official | 354:e67efb2aab0e | 574 | } |
| mbed_official | 354:e67efb2aab0e | 575 | |
| mbed_official | 354:e67efb2aab0e | 576 | /** |
| mbed_official | 354:e67efb2aab0e | 577 | * @brief Enables the interrupt and starts the comparator |
| mbed_official | 354:e67efb2aab0e | 578 | * @param hcomp: COMP handle |
| mbed_official | 354:e67efb2aab0e | 579 | * @retval HAL status. |
| mbed_official | 354:e67efb2aab0e | 580 | */ |
| mbed_official | 354:e67efb2aab0e | 581 | HAL_StatusTypeDef HAL_COMP_Start_IT(COMP_HandleTypeDef *hcomp) |
| mbed_official | 354:e67efb2aab0e | 582 | { |
| mbed_official | 354:e67efb2aab0e | 583 | HAL_StatusTypeDef status = HAL_OK; |
| mbed_official | 354:e67efb2aab0e | 584 | uint32_t extiline = 0; |
| mbed_official | 354:e67efb2aab0e | 585 | |
| mbed_official | 354:e67efb2aab0e | 586 | status = HAL_COMP_Start(hcomp); |
| mbed_official | 354:e67efb2aab0e | 587 | if(status == HAL_OK) |
| mbed_official | 354:e67efb2aab0e | 588 | { |
| mbed_official | 354:e67efb2aab0e | 589 | /* Check the parameter */ |
| mbed_official | 354:e67efb2aab0e | 590 | assert_param(IS_COMP_TRIGGERMODE(hcomp->Init.TriggerMode)); |
| mbed_official | 354:e67efb2aab0e | 591 | |
| mbed_official | 354:e67efb2aab0e | 592 | /* Get the Exti Line output configuration */ |
| mbed_official | 354:e67efb2aab0e | 593 | extiline = __HAL_COMP_GET_EXTI_LINE(hcomp->Instance); |
| mbed_official | 354:e67efb2aab0e | 594 | |
| mbed_official | 354:e67efb2aab0e | 595 | /* Configure the rising edge */ |
| mbed_official | 354:e67efb2aab0e | 596 | /* COMP TriggerMode set to COMP_TRIGGERMODE_IT_RISING or */ |
| mbed_official | 354:e67efb2aab0e | 597 | /* COMP_TRIGGERMODE_IT_RISING_FALLING. */ |
| mbed_official | 354:e67efb2aab0e | 598 | if((hcomp->Init.TriggerMode & COMP_TRIGGERMODE_IT_RISING) != RESET) |
| mbed_official | 354:e67efb2aab0e | 599 | { |
| mbed_official | 354:e67efb2aab0e | 600 | __HAL_COMP_EXTI_RISING_IT_ENABLE(extiline); |
| mbed_official | 354:e67efb2aab0e | 601 | } |
| mbed_official | 354:e67efb2aab0e | 602 | else |
| mbed_official | 354:e67efb2aab0e | 603 | { |
| mbed_official | 354:e67efb2aab0e | 604 | __HAL_COMP_EXTI_RISING_IT_DISABLE(extiline); |
| mbed_official | 354:e67efb2aab0e | 605 | } |
| mbed_official | 354:e67efb2aab0e | 606 | |
| mbed_official | 354:e67efb2aab0e | 607 | /* Configure the falling edge */ |
| mbed_official | 354:e67efb2aab0e | 608 | /* COMP TriggerMode set to COMP_TRIGGERMODE_IT_FALLING or */ |
| mbed_official | 354:e67efb2aab0e | 609 | /* COMP_TRIGGERMODE_IT_RISING_FALLING. */ |
| mbed_official | 354:e67efb2aab0e | 610 | if((hcomp->Init.TriggerMode & COMP_TRIGGERMODE_IT_FALLING) != RESET) |
| mbed_official | 354:e67efb2aab0e | 611 | { |
| mbed_official | 354:e67efb2aab0e | 612 | __HAL_COMP_EXTI_FALLING_IT_ENABLE(extiline); |
| mbed_official | 354:e67efb2aab0e | 613 | } |
| mbed_official | 354:e67efb2aab0e | 614 | else |
| mbed_official | 354:e67efb2aab0e | 615 | { |
| mbed_official | 354:e67efb2aab0e | 616 | __HAL_COMP_EXTI_FALLING_IT_DISABLE(extiline); |
| mbed_official | 354:e67efb2aab0e | 617 | } |
| mbed_official | 354:e67efb2aab0e | 618 | |
| mbed_official | 354:e67efb2aab0e | 619 | /* Enable Exti interrupt mode */ |
| mbed_official | 354:e67efb2aab0e | 620 | __HAL_COMP_EXTI_ENABLE_IT(extiline); |
| mbed_official | 354:e67efb2aab0e | 621 | /* Clear COMP Exti pending bit */ |
| mbed_official | 354:e67efb2aab0e | 622 | __HAL_COMP_EXTI_CLEAR_FLAG(extiline); |
| mbed_official | 354:e67efb2aab0e | 623 | } |
| mbed_official | 354:e67efb2aab0e | 624 | |
| mbed_official | 354:e67efb2aab0e | 625 | return status; |
| mbed_official | 354:e67efb2aab0e | 626 | } |
| mbed_official | 354:e67efb2aab0e | 627 | |
| mbed_official | 354:e67efb2aab0e | 628 | /** |
| mbed_official | 354:e67efb2aab0e | 629 | * @brief Disable the interrupt and Stop the comparator |
| mbed_official | 354:e67efb2aab0e | 630 | * @param hcomp: COMP handle |
| mbed_official | 354:e67efb2aab0e | 631 | * @retval HAL status |
| mbed_official | 354:e67efb2aab0e | 632 | */ |
| mbed_official | 354:e67efb2aab0e | 633 | HAL_StatusTypeDef HAL_COMP_Stop_IT(COMP_HandleTypeDef *hcomp) |
| mbed_official | 354:e67efb2aab0e | 634 | { |
| mbed_official | 354:e67efb2aab0e | 635 | HAL_StatusTypeDef status = HAL_OK; |
| mbed_official | 354:e67efb2aab0e | 636 | |
| mbed_official | 354:e67efb2aab0e | 637 | /* Disable the Exti Line interrupt mode */ |
| mbed_official | 354:e67efb2aab0e | 638 | __HAL_COMP_EXTI_DISABLE_IT(__HAL_COMP_GET_EXTI_LINE(hcomp->Instance)); |
| mbed_official | 354:e67efb2aab0e | 639 | |
| mbed_official | 354:e67efb2aab0e | 640 | status = HAL_COMP_Stop(hcomp); |
| mbed_official | 354:e67efb2aab0e | 641 | |
| mbed_official | 354:e67efb2aab0e | 642 | return status; |
| mbed_official | 354:e67efb2aab0e | 643 | } |
| mbed_official | 354:e67efb2aab0e | 644 | |
| mbed_official | 354:e67efb2aab0e | 645 | /** |
| mbed_official | 354:e67efb2aab0e | 646 | * @brief Comparator IRQ Handler |
| mbed_official | 354:e67efb2aab0e | 647 | * @param hcomp: COMP handle |
| mbed_official | 354:e67efb2aab0e | 648 | * @retval HAL status |
| mbed_official | 354:e67efb2aab0e | 649 | */ |
| mbed_official | 354:e67efb2aab0e | 650 | void HAL_COMP_IRQHandler(COMP_HandleTypeDef *hcomp) |
| mbed_official | 354:e67efb2aab0e | 651 | { |
| mbed_official | 354:e67efb2aab0e | 652 | uint32_t extiline = __HAL_COMP_GET_EXTI_LINE(hcomp->Instance); |
| mbed_official | 354:e67efb2aab0e | 653 | |
| mbed_official | 354:e67efb2aab0e | 654 | /* Check COMP Exti flag */ |
| mbed_official | 354:e67efb2aab0e | 655 | if(__HAL_COMP_EXTI_GET_FLAG(extiline) != RESET) |
| mbed_official | 354:e67efb2aab0e | 656 | { |
| mbed_official | 354:e67efb2aab0e | 657 | /* Clear COMP Exti pending bit */ |
| mbed_official | 354:e67efb2aab0e | 658 | __HAL_COMP_EXTI_CLEAR_FLAG(extiline); |
| mbed_official | 354:e67efb2aab0e | 659 | |
| mbed_official | 354:e67efb2aab0e | 660 | /* COMP trigger user callback */ |
| mbed_official | 354:e67efb2aab0e | 661 | HAL_COMP_TriggerCallback(hcomp); |
| mbed_official | 354:e67efb2aab0e | 662 | } |
| mbed_official | 354:e67efb2aab0e | 663 | } |
| mbed_official | 354:e67efb2aab0e | 664 | |
| mbed_official | 354:e67efb2aab0e | 665 | /** |
| mbed_official | 354:e67efb2aab0e | 666 | * @} |
| mbed_official | 354:e67efb2aab0e | 667 | */ |
| mbed_official | 354:e67efb2aab0e | 668 | |
| mbed_official | 354:e67efb2aab0e | 669 | /** @defgroup COMP_Exported_Functions_Group3 Peripheral Control functions |
| mbed_official | 354:e67efb2aab0e | 670 | * @brief Peripheral Control functions |
| mbed_official | 354:e67efb2aab0e | 671 | * |
| mbed_official | 354:e67efb2aab0e | 672 | @verbatim |
| mbed_official | 354:e67efb2aab0e | 673 | =============================================================================== |
| mbed_official | 354:e67efb2aab0e | 674 | ##### Peripheral Control functions ##### |
| mbed_official | 354:e67efb2aab0e | 675 | =============================================================================== |
| mbed_official | 354:e67efb2aab0e | 676 | [..] |
| mbed_official | 354:e67efb2aab0e | 677 | This subsection provides a set of functions allowing to control the COMP |
| mbed_official | 354:e67efb2aab0e | 678 | management functions: Lock status, comparator output level check, IRQ |
| mbed_official | 354:e67efb2aab0e | 679 | callback (in case of usage of comparator with interruption on ExtI line). |
| mbed_official | 354:e67efb2aab0e | 680 | |
| mbed_official | 354:e67efb2aab0e | 681 | @endverbatim |
| mbed_official | 354:e67efb2aab0e | 682 | * @{ |
| mbed_official | 354:e67efb2aab0e | 683 | */ |
| mbed_official | 354:e67efb2aab0e | 684 | |
| mbed_official | 354:e67efb2aab0e | 685 | /** |
| mbed_official | 354:e67efb2aab0e | 686 | * @brief Lock the selected comparator configuration. |
| mbed_official | 354:e67efb2aab0e | 687 | * Caution: On STM32L1, HAL COMP lock is software lock only (not |
| mbed_official | 354:e67efb2aab0e | 688 | * hardware lock as on some other STM32 devices) |
| mbed_official | 354:e67efb2aab0e | 689 | * @param hcomp: COMP handle |
| mbed_official | 354:e67efb2aab0e | 690 | * @retval HAL status |
| mbed_official | 354:e67efb2aab0e | 691 | */ |
| mbed_official | 354:e67efb2aab0e | 692 | HAL_StatusTypeDef HAL_COMP_Lock(COMP_HandleTypeDef *hcomp) |
| mbed_official | 354:e67efb2aab0e | 693 | { |
| mbed_official | 354:e67efb2aab0e | 694 | HAL_StatusTypeDef status = HAL_OK; |
| mbed_official | 354:e67efb2aab0e | 695 | |
| mbed_official | 354:e67efb2aab0e | 696 | /* Check the COMP handle allocation and lock status */ |
| mbed_official | 354:e67efb2aab0e | 697 | if((hcomp == HAL_NULL) || ((hcomp->State & COMP_STATE_BIT_LOCK) != RESET)) |
| mbed_official | 354:e67efb2aab0e | 698 | { |
| mbed_official | 354:e67efb2aab0e | 699 | status = HAL_ERROR; |
| mbed_official | 354:e67efb2aab0e | 700 | } |
| mbed_official | 354:e67efb2aab0e | 701 | else |
| mbed_official | 354:e67efb2aab0e | 702 | { |
| mbed_official | 354:e67efb2aab0e | 703 | /* Check the parameter */ |
| mbed_official | 354:e67efb2aab0e | 704 | assert_param(IS_COMP_ALL_INSTANCE(hcomp->Instance)); |
| mbed_official | 354:e67efb2aab0e | 705 | |
| mbed_official | 354:e67efb2aab0e | 706 | /* Set lock flag */ |
| mbed_official | 354:e67efb2aab0e | 707 | hcomp->State |= COMP_STATE_BIT_LOCK; |
| mbed_official | 354:e67efb2aab0e | 708 | } |
| mbed_official | 354:e67efb2aab0e | 709 | |
| mbed_official | 354:e67efb2aab0e | 710 | return status; |
| mbed_official | 354:e67efb2aab0e | 711 | } |
| mbed_official | 354:e67efb2aab0e | 712 | |
| mbed_official | 354:e67efb2aab0e | 713 | /** |
| mbed_official | 354:e67efb2aab0e | 714 | * @brief Return the output level (high or low) of the selected comparator. |
| mbed_official | 354:e67efb2aab0e | 715 | * The output level depends on the selected polarity. |
| mbed_official | 354:e67efb2aab0e | 716 | * - Comparator output is low when the non-inverting input is at a lower |
| mbed_official | 354:e67efb2aab0e | 717 | * voltage than the inverting input |
| mbed_official | 354:e67efb2aab0e | 718 | * - Comparator output is high when the non-inverting input is at a higher |
| mbed_official | 354:e67efb2aab0e | 719 | * voltage than the inverting input |
| mbed_official | 354:e67efb2aab0e | 720 | * @param hcomp: COMP handle |
| mbed_official | 354:e67efb2aab0e | 721 | * @retval Returns the selected comparator output level: COMP_OUTPUTLEVEL_LOW or COMP_OUTPUTLEVEL_HIGH. |
| mbed_official | 354:e67efb2aab0e | 722 | * |
| mbed_official | 354:e67efb2aab0e | 723 | */ |
| mbed_official | 354:e67efb2aab0e | 724 | uint32_t HAL_COMP_GetOutputLevel(COMP_HandleTypeDef *hcomp) |
| mbed_official | 354:e67efb2aab0e | 725 | { |
| mbed_official | 354:e67efb2aab0e | 726 | uint32_t level = 0; |
| mbed_official | 354:e67efb2aab0e | 727 | |
| mbed_official | 354:e67efb2aab0e | 728 | /* Check the parameter */ |
| mbed_official | 354:e67efb2aab0e | 729 | assert_param(IS_COMP_ALL_INSTANCE(hcomp->Instance)); |
| mbed_official | 354:e67efb2aab0e | 730 | |
| mbed_official | 354:e67efb2aab0e | 731 | /* Read output level of the selected comparator */ |
| mbed_official | 354:e67efb2aab0e | 732 | if(READ_BIT(COMP->CSR, __COMP_CSR_CMPXOUT(hcomp)) == RESET) |
| mbed_official | 354:e67efb2aab0e | 733 | { |
| mbed_official | 354:e67efb2aab0e | 734 | level = COMP_OUTPUTLEVEL_LOW; |
| mbed_official | 354:e67efb2aab0e | 735 | } |
| mbed_official | 354:e67efb2aab0e | 736 | else |
| mbed_official | 354:e67efb2aab0e | 737 | { |
| mbed_official | 354:e67efb2aab0e | 738 | level = COMP_OUTPUTLEVEL_HIGH; |
| mbed_official | 354:e67efb2aab0e | 739 | } |
| mbed_official | 354:e67efb2aab0e | 740 | |
| mbed_official | 354:e67efb2aab0e | 741 | return(level); |
| mbed_official | 354:e67efb2aab0e | 742 | } |
| mbed_official | 354:e67efb2aab0e | 743 | |
| mbed_official | 354:e67efb2aab0e | 744 | /** |
| mbed_official | 354:e67efb2aab0e | 745 | * @brief Comparator callback. |
| mbed_official | 354:e67efb2aab0e | 746 | * @param hcomp: COMP handle |
| mbed_official | 354:e67efb2aab0e | 747 | * @retval None |
| mbed_official | 354:e67efb2aab0e | 748 | */ |
| mbed_official | 354:e67efb2aab0e | 749 | __weak void HAL_COMP_TriggerCallback(COMP_HandleTypeDef *hcomp) |
| mbed_official | 354:e67efb2aab0e | 750 | { |
| mbed_official | 354:e67efb2aab0e | 751 | /* NOTE : This function should not be modified, when the callback is needed, |
| mbed_official | 354:e67efb2aab0e | 752 | the HAL_COMP_TriggerCallback should be implemented in the user file |
| mbed_official | 354:e67efb2aab0e | 753 | */ |
| mbed_official | 354:e67efb2aab0e | 754 | } |
| mbed_official | 354:e67efb2aab0e | 755 | |
| mbed_official | 354:e67efb2aab0e | 756 | |
| mbed_official | 354:e67efb2aab0e | 757 | /** |
| mbed_official | 354:e67efb2aab0e | 758 | * @} |
| mbed_official | 354:e67efb2aab0e | 759 | */ |
| mbed_official | 354:e67efb2aab0e | 760 | |
| mbed_official | 354:e67efb2aab0e | 761 | /** @defgroup COMP_Exported_Functions_Group4 Peripheral State functions |
| mbed_official | 354:e67efb2aab0e | 762 | * @brief Peripheral State functions |
| mbed_official | 354:e67efb2aab0e | 763 | * |
| mbed_official | 354:e67efb2aab0e | 764 | @verbatim |
| mbed_official | 354:e67efb2aab0e | 765 | =============================================================================== |
| mbed_official | 354:e67efb2aab0e | 766 | ##### Peripheral State functions ##### |
| mbed_official | 354:e67efb2aab0e | 767 | =============================================================================== |
| mbed_official | 354:e67efb2aab0e | 768 | [..] |
| mbed_official | 354:e67efb2aab0e | 769 | This subsection permit to get in run-time the status of the peripheral. |
| mbed_official | 354:e67efb2aab0e | 770 | |
| mbed_official | 354:e67efb2aab0e | 771 | @endverbatim |
| mbed_official | 354:e67efb2aab0e | 772 | * @{ |
| mbed_official | 354:e67efb2aab0e | 773 | */ |
| mbed_official | 354:e67efb2aab0e | 774 | |
| mbed_official | 354:e67efb2aab0e | 775 | /** |
| mbed_official | 354:e67efb2aab0e | 776 | * @brief Return the COMP state |
| mbed_official | 354:e67efb2aab0e | 777 | * @param hcomp : COMP handle |
| mbed_official | 354:e67efb2aab0e | 778 | * @retval HAL state |
| mbed_official | 354:e67efb2aab0e | 779 | */ |
| mbed_official | 354:e67efb2aab0e | 780 | HAL_COMP_StateTypeDef HAL_COMP_GetState(COMP_HandleTypeDef *hcomp) |
| mbed_official | 354:e67efb2aab0e | 781 | { |
| mbed_official | 354:e67efb2aab0e | 782 | /* Check the COMP handle allocation */ |
| mbed_official | 354:e67efb2aab0e | 783 | if(hcomp == HAL_NULL) |
| mbed_official | 354:e67efb2aab0e | 784 | { |
| mbed_official | 354:e67efb2aab0e | 785 | return HAL_COMP_STATE_RESET; |
| mbed_official | 354:e67efb2aab0e | 786 | } |
| mbed_official | 354:e67efb2aab0e | 787 | |
| mbed_official | 354:e67efb2aab0e | 788 | /* Check the parameter */ |
| mbed_official | 354:e67efb2aab0e | 789 | assert_param(IS_COMP_ALL_INSTANCE(hcomp->Instance)); |
| mbed_official | 354:e67efb2aab0e | 790 | |
| mbed_official | 354:e67efb2aab0e | 791 | return hcomp->State; |
| mbed_official | 354:e67efb2aab0e | 792 | } |
| mbed_official | 354:e67efb2aab0e | 793 | /** |
| mbed_official | 354:e67efb2aab0e | 794 | * @} |
| mbed_official | 354:e67efb2aab0e | 795 | */ |
| mbed_official | 354:e67efb2aab0e | 796 | |
| mbed_official | 354:e67efb2aab0e | 797 | /** |
| mbed_official | 354:e67efb2aab0e | 798 | * @} |
| mbed_official | 354:e67efb2aab0e | 799 | */ |
| mbed_official | 354:e67efb2aab0e | 800 | |
| mbed_official | 354:e67efb2aab0e | 801 | #endif /* HAL_COMP_MODULE_ENABLED */ |
| mbed_official | 354:e67efb2aab0e | 802 | /** |
| mbed_official | 354:e67efb2aab0e | 803 | * @} |
| mbed_official | 354:e67efb2aab0e | 804 | */ |
| mbed_official | 354:e67efb2aab0e | 805 | |
| mbed_official | 354:e67efb2aab0e | 806 | /** |
| mbed_official | 354:e67efb2aab0e | 807 | * @} |
| mbed_official | 354:e67efb2aab0e | 808 | */ |
| mbed_official | 354:e67efb2aab0e | 809 | |
| mbed_official | 354:e67efb2aab0e | 810 | /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ |