Peter Drescher / mbed-F401

mbed library with additional peripherals for ST F401 board

Fork of mbed-src by mbed official

This mbed LIB has additional peripherals for ST F401 board

  • UART2 : PA_3 rx, PA_2 tx
  • UART3 : PC_7 rx, PC_6 tx
  • I2C2 : PB_3 SDA, PB_10 SCL
  • I2C3 : PB_4 SDA, PA_8 SCL

targets/cmsis/TARGET_STM/TARGET_NUCLEO_L152RE/stm32l1xx_lcd.c@106:ced8cbb51063, 2014-02-26 (annotated)

Committer:
mbed_official
Date:
Wed Feb 26 09:45:12 2014 +0000
Revision:
106:ced8cbb51063
Parent:
80:66393a7b209d 
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?

UserRevisionLine numberNew contents of line
mbed_official 76:aeb1df146756 1 /**
mbed_official 76:aeb1df146756 2 ******************************************************************************
mbed_official 76:aeb1df146756 3 * @file stm32l1xx_lcd.c
mbed_official 76:aeb1df146756 4 * @author MCD Application Team
mbed_official 80:66393a7b209d 5 * @version V1.3.0
mbed_official 80:66393a7b209d 6 * @date 31-January-2014
mbed_official 76:aeb1df146756 7 * @brief This file provides firmware functions to manage the following
mbed_official 76:aeb1df146756 8 * functionalities of the LCD controller (LCD) peripheral:
mbed_official 76:aeb1df146756 9 * + Initialization and configuration
mbed_official 76:aeb1df146756 10 * + LCD RAM memory write
mbed_official 76:aeb1df146756 11 * + Interrupts and flags management
mbed_official 76:aeb1df146756 12 *
mbed_official 76:aeb1df146756 13 * @verbatim
mbed_official 76:aeb1df146756 14
mbed_official 76:aeb1df146756 15 ===============================================================================
mbed_official 76:aeb1df146756 16 ##### LCD Clock #####
mbed_official 76:aeb1df146756 17 ===============================================================================
mbed_official 76:aeb1df146756 18 [..] LCDCLK is the same as RTCCLK.
mbed_official 76:aeb1df146756 19 [..] To configure the RTCCLK/LCDCLK, proceed as follows:
mbed_official 76:aeb1df146756 20 (+) Enable the Power Controller (PWR) APB1 interface clock using the
mbed_official 76:aeb1df146756 21 RCC_APB1PeriphClockCmd() function.
mbed_official 76:aeb1df146756 22 (+) Enable access to RTC domain using the PWR_RTCAccessCmd() function.
mbed_official 76:aeb1df146756 23 (+) Select the RTC clock source using the RCC_RTCCLKConfig() function.
mbed_official 76:aeb1df146756 24
mbed_official 76:aeb1df146756 25 [..] The frequency generator allows you to achieve various LCD frame rates
mbed_official 76:aeb1df146756 26 starting from an LCD input clock frequency (LCDCLK) which can vary
mbed_official 76:aeb1df146756 27 from 32 kHz up to 1 MHz.
mbed_official 76:aeb1df146756 28
mbed_official 76:aeb1df146756 29 ##### LCD and low power modes #####
mbed_official 76:aeb1df146756 30 ===============================================================================
mbed_official 76:aeb1df146756 31 [..] The LCD still active during STOP mode.
mbed_official 76:aeb1df146756 32
mbed_official 76:aeb1df146756 33 ##### How to use this driver #####
mbed_official 76:aeb1df146756 34 ===============================================================================
mbed_official 76:aeb1df146756 35 [..]
mbed_official 76:aeb1df146756 36 (#) Enable LCD clock using
mbed_official 76:aeb1df146756 37 RCC_APB1PeriphClockCmd(RCC_APB1Periph_LCD, ENABLE) function.
mbed_official 76:aeb1df146756 38 (#) Configure the LCD prescaler, divider, duty, bias and voltage source
mbed_official 76:aeb1df146756 39 using LCD_Init() function.
mbed_official 76:aeb1df146756 40 (#) Optionally you can enable/configure:
mbed_official 76:aeb1df146756 41 (++) LCD High Drive using the LCD_HighDriveCmd() function.
mbed_official 76:aeb1df146756 42 (++) LCD COM/SEG Mux using the LCD_MuxSegmentCmd() function.
mbed_official 76:aeb1df146756 43 (++) LCD Pulse ON Duration using the LCD_PulseOnDurationConfig() function.
mbed_official 76:aeb1df146756 44 (++) LCD Dead Time using the LCD_DeadTimeConfig() function
mbed_official 76:aeb1df146756 45 (++) The LCD Blink mode and frequency using the LCD_BlinkConfig() function.
mbed_official 76:aeb1df146756 46 (++) The LCD Contrast using the LCD_ContrastConfig() function.
mbed_official 76:aeb1df146756 47 (#) Call the LCD_WaitForSynchro() function to wait for LCD_FCR register
mbed_official 76:aeb1df146756 48 synchronization.
mbed_official 76:aeb1df146756 49 (#) Call the LCD_Cmd() to enable the LCD controller.
mbed_official 76:aeb1df146756 50 (#) Wait until the LCD Controller status is enabled and the step-up
mbed_official 76:aeb1df146756 51 converter is ready using the LCD_GetFlagStatus() and
mbed_official 76:aeb1df146756 52 LCD_FLAG_ENS and LCD_FLAG_RDY flags.
mbed_official 76:aeb1df146756 53 (#) Write to the LCD RAM memory using the LCD_Write() function.
mbed_official 76:aeb1df146756 54 (#) Request an update display using the LCD_UpdateDisplayRequest()
mbed_official 76:aeb1df146756 55 function.
mbed_official 76:aeb1df146756 56 (#) Wait until the update display is finished by checking the UDD
mbed_official 76:aeb1df146756 57 flag status using the LCD_GetFlagStatus(LCD_FLAG_UDD).
mbed_official 76:aeb1df146756 58
mbed_official 76:aeb1df146756 59 @endverbatim
mbed_official 76:aeb1df146756 60
mbed_official 76:aeb1df146756 61 ******************************************************************************
mbed_official 76:aeb1df146756 62 * @attention
mbed_official 76:aeb1df146756 63 *
mbed_official 106:ced8cbb51063 64 * <h2><center>&copy; COPYRIGHT(c) 2014 STMicroelectronics</center></h2>
mbed_official 76:aeb1df146756 65 *
mbed_official 106:ced8cbb51063 66 * Redistribution and use in source and binary forms, with or without modification,
mbed_official 106:ced8cbb51063 67 * are permitted provided that the following conditions are met:
mbed_official 106:ced8cbb51063 68 * 1. Redistributions of source code must retain the above copyright notice,
mbed_official 106:ced8cbb51063 69 * this list of conditions and the following disclaimer.
mbed_official 106:ced8cbb51063 70 * 2. Redistributions in binary form must reproduce the above copyright notice,
mbed_official 106:ced8cbb51063 71 * this list of conditions and the following disclaimer in the documentation
mbed_official 106:ced8cbb51063 72 * and/or other materials provided with the distribution.
mbed_official 106:ced8cbb51063 73 * 3. Neither the name of STMicroelectronics nor the names of its contributors
mbed_official 106:ced8cbb51063 74 * may be used to endorse or promote products derived from this software
mbed_official 106:ced8cbb51063 75 * without specific prior written permission.
mbed_official 76:aeb1df146756 76 *
mbed_official 106:ced8cbb51063 77 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
mbed_official 106:ced8cbb51063 78 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
mbed_official 106:ced8cbb51063 79 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
mbed_official 106:ced8cbb51063 80 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
mbed_official 106:ced8cbb51063 81 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
mbed_official 106:ced8cbb51063 82 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
mbed_official 106:ced8cbb51063 83 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
mbed_official 106:ced8cbb51063 84 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
mbed_official 106:ced8cbb51063 85 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
mbed_official 106:ced8cbb51063 86 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
mbed_official 76:aeb1df146756 87 *
mbed_official 76:aeb1df146756 88 ******************************************************************************
mbed_official 76:aeb1df146756 89 */
mbed_official 76:aeb1df146756 90
mbed_official 76:aeb1df146756 91 /* Includes ------------------------------------------------------------------*/
mbed_official 76:aeb1df146756 92 #include "stm32l1xx_lcd.h"
mbed_official 76:aeb1df146756 93 #include "stm32l1xx_rcc.h"
mbed_official 76:aeb1df146756 94
mbed_official 76:aeb1df146756 95 /** @addtogroup STM32L1xx_StdPeriph_Driver
mbed_official 76:aeb1df146756 96 * @{
mbed_official 76:aeb1df146756 97 */
mbed_official 76:aeb1df146756 98
mbed_official 76:aeb1df146756 99 /** @defgroup LCD
mbed_official 76:aeb1df146756 100 * @brief LCD driver modules
mbed_official 76:aeb1df146756 101 * @{
mbed_official 76:aeb1df146756 102 */
mbed_official 76:aeb1df146756 103
mbed_official 76:aeb1df146756 104 /* Private typedef -----------------------------------------------------------*/
mbed_official 76:aeb1df146756 105 /* Private define ------------------------------------------------------------*/
mbed_official 76:aeb1df146756 106 /* ------------ LCD registers bit address in the alias region --------------- */
mbed_official 76:aeb1df146756 107 #define LCD_OFFSET (LCD_BASE - PERIPH_BASE)
mbed_official 76:aeb1df146756 108
mbed_official 76:aeb1df146756 109 /* --- CR Register ---*/
mbed_official 76:aeb1df146756 110
mbed_official 76:aeb1df146756 111 /* Alias word address of LCDEN bit */
mbed_official 76:aeb1df146756 112 #define CR_OFFSET (LCD_OFFSET + 0x00)
mbed_official 76:aeb1df146756 113 #define LCDEN_BitNumber 0x00
mbed_official 76:aeb1df146756 114 #define CR_LCDEN_BB (PERIPH_BB_BASE + (CR_OFFSET * 32) + (LCDEN_BitNumber * 4))
mbed_official 76:aeb1df146756 115
mbed_official 76:aeb1df146756 116 /* Alias word address of MUX_SEG bit */
mbed_official 76:aeb1df146756 117 #define MUX_SEG_BitNumber 0x07
mbed_official 76:aeb1df146756 118 #define CR_MUX_SEG_BB (PERIPH_BB_BASE + (CR_OFFSET * 32) + (MUX_SEG_BitNumber * 4))
mbed_official 76:aeb1df146756 119
mbed_official 76:aeb1df146756 120
mbed_official 76:aeb1df146756 121 /* --- FCR Register ---*/
mbed_official 76:aeb1df146756 122
mbed_official 76:aeb1df146756 123 /* Alias word address of HD bit */
mbed_official 76:aeb1df146756 124 #define FCR_OFFSET (LCD_OFFSET + 0x04)
mbed_official 76:aeb1df146756 125 #define HD_BitNumber 0x00
mbed_official 76:aeb1df146756 126 #define FCR_HD_BB (PERIPH_BB_BASE + (FCR_OFFSET * 32) + (HD_BitNumber * 4))
mbed_official 76:aeb1df146756 127
mbed_official 76:aeb1df146756 128 /* --- SR Register ---*/
mbed_official 76:aeb1df146756 129
mbed_official 76:aeb1df146756 130 /* Alias word address of UDR bit */
mbed_official 76:aeb1df146756 131 #define SR_OFFSET (LCD_OFFSET + 0x08)
mbed_official 76:aeb1df146756 132 #define UDR_BitNumber 0x02
mbed_official 76:aeb1df146756 133 #define SR_UDR_BB (PERIPH_BB_BASE + (SR_OFFSET * 32) + (UDR_BitNumber * 4))
mbed_official 76:aeb1df146756 134
mbed_official 76:aeb1df146756 135 #define FCR_MASK ((uint32_t)0xFC03FFFF) /* LCD FCR Mask */
mbed_official 76:aeb1df146756 136 #define CR_MASK ((uint32_t)0xFFFFFF81) /* LCD CR Mask */
mbed_official 76:aeb1df146756 137 #define PON_MASK ((uint32_t)0xFFFFFF8F) /* LCD PON Mask */
mbed_official 76:aeb1df146756 138 #define DEAD_MASK ((uint32_t)0xFFFFFC7F) /* LCD DEAD Mask */
mbed_official 76:aeb1df146756 139 #define BLINK_MASK ((uint32_t)0xFFFC1FFF) /* LCD BLINK Mask */
mbed_official 76:aeb1df146756 140 #define CONTRAST_MASK ((uint32_t)0xFFFFE3FF) /* LCD CONTRAST Mask */
mbed_official 76:aeb1df146756 141
mbed_official 80:66393a7b209d 142 #define SYNCHRO_TIMEOUT ((uint32_t) 0x00008000)
mbed_official 80:66393a7b209d 143
mbed_official 76:aeb1df146756 144 /* Private macro -------------------------------------------------------------*/
mbed_official 76:aeb1df146756 145 /* Private variables ---------------------------------------------------------*/
mbed_official 76:aeb1df146756 146 /* Private function prototypes -----------------------------------------------*/
mbed_official 76:aeb1df146756 147 /* Private functions ---------------------------------------------------------*/
mbed_official 76:aeb1df146756 148
mbed_official 76:aeb1df146756 149 /** @defgroup LCD_Private_Functions
mbed_official 76:aeb1df146756 150 * @{
mbed_official 76:aeb1df146756 151 */
mbed_official 76:aeb1df146756 152
mbed_official 76:aeb1df146756 153 /** @defgroup LCD_Group1 Initialization and Configuration functions
mbed_official 76:aeb1df146756 154 * @brief Initialization and Configuration functions
mbed_official 76:aeb1df146756 155 *
mbed_official 76:aeb1df146756 156 @verbatim
mbed_official 76:aeb1df146756 157 ===============================================================================
mbed_official 76:aeb1df146756 158 ##### Initialization and Configuration functions #####
mbed_official 76:aeb1df146756 159 ===============================================================================
mbed_official 76:aeb1df146756 160
mbed_official 76:aeb1df146756 161 @endverbatim
mbed_official 76:aeb1df146756 162 * @{
mbed_official 76:aeb1df146756 163 */
mbed_official 76:aeb1df146756 164
mbed_official 76:aeb1df146756 165 /**
mbed_official 76:aeb1df146756 166 * @brief Deinitializes the LCD peripheral registers to their default reset
mbed_official 76:aeb1df146756 167 * values.
mbed_official 76:aeb1df146756 168 * @param None
mbed_official 76:aeb1df146756 169 * @retval None
mbed_official 76:aeb1df146756 170 */
mbed_official 76:aeb1df146756 171 void LCD_DeInit(void)
mbed_official 76:aeb1df146756 172 {
mbed_official 76:aeb1df146756 173 /* Enable LCD reset state */
mbed_official 76:aeb1df146756 174 RCC_APB1PeriphResetCmd(RCC_APB1Periph_LCD, ENABLE);
mbed_official 76:aeb1df146756 175 /* Release LCD from reset state */
mbed_official 76:aeb1df146756 176 RCC_APB1PeriphResetCmd(RCC_APB1Periph_LCD, DISABLE);
mbed_official 76:aeb1df146756 177 }
mbed_official 76:aeb1df146756 178
mbed_official 76:aeb1df146756 179 /**
mbed_official 76:aeb1df146756 180 * @brief Initializes the LCD peripheral according to the specified parameters
mbed_official 76:aeb1df146756 181 * in the LCD_InitStruct.
mbed_official 76:aeb1df146756 182 * @note This function can be used only when the LCD is disabled.
mbed_official 76:aeb1df146756 183 * @param LCD_InitStruct: pointer to a LCD_InitTypeDef structure that contains
mbed_official 76:aeb1df146756 184 * the configuration information for the specified LCD peripheral.
mbed_official 76:aeb1df146756 185 * @retval None
mbed_official 76:aeb1df146756 186 */
mbed_official 76:aeb1df146756 187 void LCD_Init(LCD_InitTypeDef* LCD_InitStruct)
mbed_official 76:aeb1df146756 188 {
mbed_official 76:aeb1df146756 189 /* Check function parameters */
mbed_official 76:aeb1df146756 190 assert_param(IS_LCD_PRESCALER(LCD_InitStruct->LCD_Prescaler));
mbed_official 76:aeb1df146756 191 assert_param(IS_LCD_DIVIDER(LCD_InitStruct->LCD_Divider));
mbed_official 76:aeb1df146756 192 assert_param(IS_LCD_DUTY(LCD_InitStruct->LCD_Duty));
mbed_official 76:aeb1df146756 193 assert_param(IS_LCD_BIAS(LCD_InitStruct->LCD_Bias));
mbed_official 76:aeb1df146756 194 assert_param(IS_LCD_VOLTAGE_SOURCE(LCD_InitStruct->LCD_VoltageSource));
mbed_official 76:aeb1df146756 195
mbed_official 76:aeb1df146756 196 LCD->FCR &= (uint32_t)FCR_MASK;
mbed_official 76:aeb1df146756 197 LCD->FCR |= (uint32_t)(LCD_InitStruct->LCD_Prescaler | LCD_InitStruct->LCD_Divider);
mbed_official 76:aeb1df146756 198
mbed_official 76:aeb1df146756 199 LCD_WaitForSynchro();
mbed_official 76:aeb1df146756 200
mbed_official 76:aeb1df146756 201 LCD->CR &= (uint32_t)CR_MASK;
mbed_official 76:aeb1df146756 202 LCD->CR |= (uint32_t)(LCD_InitStruct->LCD_Duty | LCD_InitStruct->LCD_Bias | \
mbed_official 76:aeb1df146756 203 LCD_InitStruct->LCD_VoltageSource);
mbed_official 76:aeb1df146756 204
mbed_official 76:aeb1df146756 205 }
mbed_official 76:aeb1df146756 206
mbed_official 76:aeb1df146756 207 /**
mbed_official 76:aeb1df146756 208 * @brief Fills each LCD_InitStruct member with its default value.
mbed_official 76:aeb1df146756 209 * @param LCD_InitStruct: pointer to a LCD_InitTypeDef structure which will
mbed_official 76:aeb1df146756 210 * be initialized.
mbed_official 76:aeb1df146756 211 * @retval None
mbed_official 76:aeb1df146756 212 */
mbed_official 76:aeb1df146756 213 void LCD_StructInit(LCD_InitTypeDef* LCD_InitStruct)
mbed_official 76:aeb1df146756 214 {
mbed_official 76:aeb1df146756 215 /*--------------- Reset LCD init structure parameters values -----------------*/
mbed_official 76:aeb1df146756 216 LCD_InitStruct->LCD_Prescaler = LCD_Prescaler_1; /*!< Initialize the LCD_Prescaler member */
mbed_official 76:aeb1df146756 217
mbed_official 76:aeb1df146756 218 LCD_InitStruct->LCD_Divider = LCD_Divider_16; /*!< Initialize the LCD_Divider member */
mbed_official 76:aeb1df146756 219
mbed_official 76:aeb1df146756 220 LCD_InitStruct->LCD_Duty = LCD_Duty_Static; /*!< Initialize the LCD_Duty member */
mbed_official 76:aeb1df146756 221
mbed_official 76:aeb1df146756 222 LCD_InitStruct->LCD_Bias = LCD_Bias_1_4; /*!< Initialize the LCD_Bias member */
mbed_official 76:aeb1df146756 223
mbed_official 76:aeb1df146756 224 LCD_InitStruct->LCD_VoltageSource = LCD_VoltageSource_Internal; /*!< Initialize the LCD_VoltageSource member */
mbed_official 76:aeb1df146756 225 }
mbed_official 76:aeb1df146756 226
mbed_official 76:aeb1df146756 227 /**
mbed_official 76:aeb1df146756 228 * @brief Enables or disables the LCD Controller.
mbed_official 76:aeb1df146756 229 * @param NewState: new state of the LCD peripheral.
mbed_official 76:aeb1df146756 230 * This parameter can be: ENABLE or DISABLE.
mbed_official 76:aeb1df146756 231 * @retval None
mbed_official 76:aeb1df146756 232 */
mbed_official 76:aeb1df146756 233 void LCD_Cmd(FunctionalState NewState)
mbed_official 76:aeb1df146756 234 {
mbed_official 76:aeb1df146756 235 assert_param(IS_FUNCTIONAL_STATE(NewState));
mbed_official 76:aeb1df146756 236
mbed_official 76:aeb1df146756 237 /* Check the parameters */
mbed_official 76:aeb1df146756 238 assert_param(IS_FUNCTIONAL_STATE(NewState));
mbed_official 76:aeb1df146756 239
mbed_official 76:aeb1df146756 240 *(__IO uint32_t *) CR_LCDEN_BB = (uint32_t)NewState;
mbed_official 76:aeb1df146756 241 }
mbed_official 76:aeb1df146756 242
mbed_official 76:aeb1df146756 243 /**
mbed_official 76:aeb1df146756 244 * @brief Waits until the LCD FCR register is synchronized in the LCDCLK domain.
mbed_official 76:aeb1df146756 245 * This function must be called after any write operation to LCD_FCR register.
mbed_official 76:aeb1df146756 246 * @param None
mbed_official 76:aeb1df146756 247 * @retval None
mbed_official 76:aeb1df146756 248 */
mbed_official 76:aeb1df146756 249 void LCD_WaitForSynchro(void)
mbed_official 76:aeb1df146756 250 {
mbed_official 80:66393a7b209d 251 uint32_t synchrocounter = 0;
mbed_official 80:66393a7b209d 252 uint32_t synchrostatus = 0x00;
mbed_official 80:66393a7b209d 253
mbed_official 76:aeb1df146756 254 /* Loop until FCRSF flag is set */
mbed_official 80:66393a7b209d 255 do
mbed_official 76:aeb1df146756 256 {
mbed_official 80:66393a7b209d 257 synchrostatus = LCD->SR & LCD_FLAG_FCRSF;
mbed_official 80:66393a7b209d 258 synchrocounter++;
mbed_official 80:66393a7b209d 259 } while((synchrocounter != SYNCHRO_TIMEOUT) && (synchrostatus == 0x00));
mbed_official 76:aeb1df146756 260 }
mbed_official 76:aeb1df146756 261
mbed_official 76:aeb1df146756 262 /**
mbed_official 76:aeb1df146756 263 * @brief Enables or disables the low resistance divider. Displays with high
mbed_official 76:aeb1df146756 264 * internal resistance may need a longer drive time to achieve
mbed_official 76:aeb1df146756 265 * satisfactory contrast. This function is useful in this case if some
mbed_official 76:aeb1df146756 266 * additional power consumption can be tolerated.
mbed_official 76:aeb1df146756 267 * @note When this mode is enabled, the PulseOn Duration (PON) have to be
mbed_official 76:aeb1df146756 268 * programmed to 1/CK_PS (LCD_PulseOnDuration_1).
mbed_official 76:aeb1df146756 269 * @param NewState: new state of the low resistance divider.
mbed_official 76:aeb1df146756 270 * This parameter can be: ENABLE or DISABLE.
mbed_official 76:aeb1df146756 271 * @retval None
mbed_official 76:aeb1df146756 272 */
mbed_official 76:aeb1df146756 273 void LCD_HighDriveCmd(FunctionalState NewState)
mbed_official 76:aeb1df146756 274 {
mbed_official 76:aeb1df146756 275 /* Check the parameters */
mbed_official 76:aeb1df146756 276 assert_param(IS_FUNCTIONAL_STATE(NewState));
mbed_official 76:aeb1df146756 277
mbed_official 76:aeb1df146756 278 *(__IO uint32_t *) FCR_HD_BB = (uint32_t)NewState;
mbed_official 76:aeb1df146756 279 }
mbed_official 76:aeb1df146756 280
mbed_official 76:aeb1df146756 281 /**
mbed_official 76:aeb1df146756 282 * @brief Enables or disables the Mux Segment.
mbed_official 76:aeb1df146756 283 * @note This function can be used only when the LCD is disabled.
mbed_official 76:aeb1df146756 284 * @param NewState: new state of the Mux Segment.
mbed_official 76:aeb1df146756 285 * This parameter can be: ENABLE or DISABLE.
mbed_official 76:aeb1df146756 286 * @retval None
mbed_official 76:aeb1df146756 287 */
mbed_official 76:aeb1df146756 288 void LCD_MuxSegmentCmd(FunctionalState NewState)
mbed_official 76:aeb1df146756 289 {
mbed_official 76:aeb1df146756 290 /* Check the parameters */
mbed_official 76:aeb1df146756 291 assert_param(IS_FUNCTIONAL_STATE(NewState));
mbed_official 76:aeb1df146756 292
mbed_official 76:aeb1df146756 293 *(__IO uint32_t *) CR_MUX_SEG_BB = (uint32_t)NewState;
mbed_official 76:aeb1df146756 294 }
mbed_official 76:aeb1df146756 295
mbed_official 76:aeb1df146756 296 /**
mbed_official 76:aeb1df146756 297 * @brief Configures the LCD pulses on duration.
mbed_official 76:aeb1df146756 298 * @param LCD_PulseOnDuration: specifies the LCD pulse on duration in terms of
mbed_official 76:aeb1df146756 299 * CK_PS (prescaled LCD clock period) pulses.
mbed_official 76:aeb1df146756 300 * This parameter can be one of the following values:
mbed_official 76:aeb1df146756 301 * @arg LCD_PulseOnDuration_0: 0 pulse
mbed_official 76:aeb1df146756 302 * @arg LCD_PulseOnDuration_1: Pulse ON duration = 1/CK_PS
mbed_official 76:aeb1df146756 303 * @arg LCD_PulseOnDuration_2: Pulse ON duration = 2/CK_PS
mbed_official 76:aeb1df146756 304 * @arg LCD_PulseOnDuration_3: Pulse ON duration = 3/CK_PS
mbed_official 76:aeb1df146756 305 * @arg LCD_PulseOnDuration_4: Pulse ON duration = 4/CK_PS
mbed_official 76:aeb1df146756 306 * @arg LCD_PulseOnDuration_5: Pulse ON duration = 5/CK_PS
mbed_official 76:aeb1df146756 307 * @arg LCD_PulseOnDuration_6: Pulse ON duration = 6/CK_PS
mbed_official 76:aeb1df146756 308 * @arg LCD_PulseOnDuration_7: Pulse ON duration = 7/CK_PS
mbed_official 76:aeb1df146756 309 * @retval None
mbed_official 76:aeb1df146756 310 */
mbed_official 76:aeb1df146756 311 void LCD_PulseOnDurationConfig(uint32_t LCD_PulseOnDuration)
mbed_official 76:aeb1df146756 312 {
mbed_official 76:aeb1df146756 313 /* Check the parameters */
mbed_official 76:aeb1df146756 314 assert_param(IS_LCD_PULSE_ON_DURATION(LCD_PulseOnDuration));
mbed_official 76:aeb1df146756 315
mbed_official 76:aeb1df146756 316 LCD->FCR &= (uint32_t)PON_MASK;
mbed_official 76:aeb1df146756 317 LCD->FCR |= (uint32_t)(LCD_PulseOnDuration);
mbed_official 76:aeb1df146756 318 }
mbed_official 76:aeb1df146756 319
mbed_official 76:aeb1df146756 320 /**
mbed_official 76:aeb1df146756 321 * @brief Configures the LCD dead time.
mbed_official 76:aeb1df146756 322 * @param LCD_DeadTime: specifies the LCD dead time.
mbed_official 76:aeb1df146756 323 * This parameter can be one of the following values:
mbed_official 76:aeb1df146756 324 * @arg LCD_DeadTime_0: No dead Time
mbed_official 76:aeb1df146756 325 * @arg LCD_DeadTime_1: One Phase between different couple of Frame
mbed_official 76:aeb1df146756 326 * @arg LCD_DeadTime_2: Two Phase between different couple of Frame
mbed_official 76:aeb1df146756 327 * @arg LCD_DeadTime_3: Three Phase between different couple of Frame
mbed_official 76:aeb1df146756 328 * @arg LCD_DeadTime_4: Four Phase between different couple of Frame
mbed_official 76:aeb1df146756 329 * @arg LCD_DeadTime_5: Five Phase between different couple of Frame
mbed_official 76:aeb1df146756 330 * @arg LCD_DeadTime_6: Six Phase between different couple of Frame
mbed_official 76:aeb1df146756 331 * @arg LCD_DeadTime_7: Seven Phase between different couple of Frame
mbed_official 76:aeb1df146756 332 * @retval None
mbed_official 76:aeb1df146756 333 */
mbed_official 76:aeb1df146756 334 void LCD_DeadTimeConfig(uint32_t LCD_DeadTime)
mbed_official 76:aeb1df146756 335 {
mbed_official 76:aeb1df146756 336 /* Check the parameters */
mbed_official 76:aeb1df146756 337 assert_param(IS_LCD_DEAD_TIME(LCD_DeadTime));
mbed_official 76:aeb1df146756 338
mbed_official 76:aeb1df146756 339 LCD->FCR &= (uint32_t)DEAD_MASK;
mbed_official 76:aeb1df146756 340 LCD->FCR |= (uint32_t)(LCD_DeadTime);
mbed_official 76:aeb1df146756 341 }
mbed_official 76:aeb1df146756 342
mbed_official 76:aeb1df146756 343 /**
mbed_official 76:aeb1df146756 344 * @brief Configures the LCD Blink mode and Blink frequency.
mbed_official 76:aeb1df146756 345 * @param LCD_BlinkMode: specifies the LCD blink mode.
mbed_official 76:aeb1df146756 346 * This parameter can be one of the following values:
mbed_official 76:aeb1df146756 347 * @arg LCD_BlinkMode_Off: Blink disabled
mbed_official 76:aeb1df146756 348 * @arg LCD_BlinkMode_SEG0_COM0: Blink enabled on SEG[0], COM[0] (1 pixel)
mbed_official 76:aeb1df146756 349 * @arg LCD_BlinkMode_SEG0_AllCOM: Blink enabled on SEG[0], all COM (up to 8
mbed_official 76:aeb1df146756 350 * pixels according to the programmed duty)
mbed_official 76:aeb1df146756 351 * @arg LCD_BlinkMode_AllSEG_AllCOM: Blink enabled on all SEG and all COM
mbed_official 76:aeb1df146756 352 * (all pixels)
mbed_official 76:aeb1df146756 353 * @param LCD_BlinkFrequency: specifies the LCD blink frequency.
mbed_official 76:aeb1df146756 354 * This parameter can be one of the following values:
mbed_official 76:aeb1df146756 355 * @arg LCD_BlinkFrequency_Div8: The Blink frequency = fLcd/8
mbed_official 76:aeb1df146756 356 * @arg LCD_BlinkFrequency_Div16: The Blink frequency = fLcd/16
mbed_official 76:aeb1df146756 357 * @arg LCD_BlinkFrequency_Div32: The Blink frequency = fLcd/32
mbed_official 76:aeb1df146756 358 * @arg LCD_BlinkFrequency_Div64: The Blink frequency = fLcd/64
mbed_official 76:aeb1df146756 359 * @arg LCD_BlinkFrequency_Div128: The Blink frequency = fLcd/128
mbed_official 76:aeb1df146756 360 * @arg LCD_BlinkFrequency_Div256: The Blink frequency = fLcd/256
mbed_official 76:aeb1df146756 361 * @arg LCD_BlinkFrequency_Div512: The Blink frequency = fLcd/512
mbed_official 76:aeb1df146756 362 * @arg LCD_BlinkFrequency_Div1024: The Blink frequency = fLcd/1024
mbed_official 76:aeb1df146756 363 * @retval None
mbed_official 76:aeb1df146756 364 */
mbed_official 76:aeb1df146756 365 void LCD_BlinkConfig(uint32_t LCD_BlinkMode, uint32_t LCD_BlinkFrequency)
mbed_official 76:aeb1df146756 366 {
mbed_official 76:aeb1df146756 367 /* Check the parameters */
mbed_official 76:aeb1df146756 368 assert_param(IS_LCD_BLINK_MODE(LCD_BlinkMode));
mbed_official 76:aeb1df146756 369 assert_param(IS_LCD_BLINK_FREQUENCY(LCD_BlinkFrequency));
mbed_official 76:aeb1df146756 370
mbed_official 76:aeb1df146756 371 LCD->FCR &= (uint32_t)BLINK_MASK;
mbed_official 76:aeb1df146756 372 LCD->FCR |= (uint32_t)(LCD_BlinkMode | LCD_BlinkFrequency);
mbed_official 76:aeb1df146756 373 }
mbed_official 76:aeb1df146756 374
mbed_official 76:aeb1df146756 375 /**
mbed_official 76:aeb1df146756 376 * @brief Configures the LCD Contrast.
mbed_official 76:aeb1df146756 377 * @param LCD_Contrast: specifies the LCD Contrast.
mbed_official 76:aeb1df146756 378 * This parameter can be one of the following values:
mbed_official 76:aeb1df146756 379 * @arg LCD_Contrast_Level_0: Maximum Voltage = 2.60V
mbed_official 76:aeb1df146756 380 * @arg LCD_Contrast_Level_1: Maximum Voltage = 2.73V
mbed_official 76:aeb1df146756 381 * @arg LCD_Contrast_Level_2: Maximum Voltage = 2.86V
mbed_official 76:aeb1df146756 382 * @arg LCD_Contrast_Level_3: Maximum Voltage = 2.99V
mbed_official 76:aeb1df146756 383 * @arg LCD_Contrast_Level_4: Maximum Voltage = 3.12V
mbed_official 76:aeb1df146756 384 * @arg LCD_Contrast_Level_5: Maximum Voltage = 3.25V
mbed_official 76:aeb1df146756 385 * @arg LCD_Contrast_Level_6: Maximum Voltage = 3.38V
mbed_official 76:aeb1df146756 386 * @arg LCD_Contrast_Level_7: Maximum Voltage = 3.51V
mbed_official 76:aeb1df146756 387 * @retval None
mbed_official 76:aeb1df146756 388 */
mbed_official 76:aeb1df146756 389 void LCD_ContrastConfig(uint32_t LCD_Contrast)
mbed_official 76:aeb1df146756 390 {
mbed_official 76:aeb1df146756 391 /* Check the parameters */
mbed_official 76:aeb1df146756 392 assert_param(IS_LCD_CONTRAST(LCD_Contrast));
mbed_official 76:aeb1df146756 393
mbed_official 76:aeb1df146756 394 LCD->FCR &= (uint32_t)CONTRAST_MASK;
mbed_official 76:aeb1df146756 395 LCD->FCR |= (uint32_t)(LCD_Contrast);
mbed_official 76:aeb1df146756 396 }
mbed_official 76:aeb1df146756 397
mbed_official 76:aeb1df146756 398 /**
mbed_official 76:aeb1df146756 399 * @}
mbed_official 76:aeb1df146756 400 */
mbed_official 76:aeb1df146756 401
mbed_official 76:aeb1df146756 402 /** @defgroup LCD_Group2 LCD RAM memory write functions
mbed_official 76:aeb1df146756 403 * @brief LCD RAM memory write functions
mbed_official 76:aeb1df146756 404 *
mbed_official 76:aeb1df146756 405 @verbatim
mbed_official 76:aeb1df146756 406 ===============================================================================
mbed_official 76:aeb1df146756 407 ##### LCD RAM memory write functions #####
mbed_official 76:aeb1df146756 408 ===============================================================================
mbed_official 76:aeb1df146756 409 [..] Using its double buffer memory the LCD controller ensures the coherency
mbed_official 76:aeb1df146756 410 of the displayed information without having to use interrupts to control
mbed_official 76:aeb1df146756 411 LCD_RAM modification.
mbed_official 76:aeb1df146756 412
mbed_official 76:aeb1df146756 413 [..] The application software can access the first buffer level (LCD_RAM) through
mbed_official 76:aeb1df146756 414 the APB interface. Once it has modified the LCD_RAM, it sets the UDR flag
mbed_official 76:aeb1df146756 415 in the LCD_SR register using the LCD_UpdateDisplayRequest() function.
mbed_official 76:aeb1df146756 416
mbed_official 76:aeb1df146756 417 [..] This UDR flag (update display request) requests the updated information
mbed_official 76:aeb1df146756 418 to be moved into the second buffer level (LCD_DISPLAY).
mbed_official 76:aeb1df146756 419
mbed_official 76:aeb1df146756 420 [..] This operation is done synchronously with the frame (at the beginning of
mbed_official 76:aeb1df146756 421 the next frame), until the update is completed, the LCD_RAM is write
mbed_official 76:aeb1df146756 422 protected and the UDR flag stays high.
mbed_official 76:aeb1df146756 423
mbed_official 76:aeb1df146756 424 [..] Once the update is completed another flag (UDD - Update Display Done) is
mbed_official 76:aeb1df146756 425 set and generates an interrupt if the UDDIE bit in the LCD_FCR register
mbed_official 76:aeb1df146756 426 is set.
mbed_official 76:aeb1df146756 427
mbed_official 76:aeb1df146756 428 [..] The time it takes to update LCD_DISPLAY is, in the worst case, one odd
mbed_official 76:aeb1df146756 429 and one even frame.
mbed_official 76:aeb1df146756 430
mbed_official 76:aeb1df146756 431 [..] The update will not occur (UDR = 1 and UDD = 0) until the display is
mbed_official 76:aeb1df146756 432 enabled (LCDEN = 1).
mbed_official 76:aeb1df146756 433
mbed_official 76:aeb1df146756 434 @endverbatim
mbed_official 76:aeb1df146756 435 * @{
mbed_official 76:aeb1df146756 436 */
mbed_official 76:aeb1df146756 437
mbed_official 76:aeb1df146756 438 /**
mbed_official 76:aeb1df146756 439 * @brief Writes a word in the specific LCD RAM.
mbed_official 76:aeb1df146756 440 * @param LCD_RAMRegister: specifies the LCD Contrast.
mbed_official 76:aeb1df146756 441 * This parameter can be one of the following values:
mbed_official 76:aeb1df146756 442 * @arg LCD_RAMRegister_0: LCD RAM Register 0
mbed_official 76:aeb1df146756 443 * @arg LCD_RAMRegister_1: LCD RAM Register 1
mbed_official 76:aeb1df146756 444 * @arg LCD_RAMRegister_2: LCD RAM Register 2
mbed_official 76:aeb1df146756 445 * @arg LCD_RAMRegister_3: LCD RAM Register 3
mbed_official 76:aeb1df146756 446 * @arg LCD_RAMRegister_4: LCD RAM Register 4
mbed_official 76:aeb1df146756 447 * @arg LCD_RAMRegister_5: LCD RAM Register 5
mbed_official 76:aeb1df146756 448 * @arg LCD_RAMRegister_6: LCD RAM Register 6
mbed_official 76:aeb1df146756 449 * @arg LCD_RAMRegister_7: LCD RAM Register 7
mbed_official 76:aeb1df146756 450 * @arg LCD_RAMRegister_8: LCD RAM Register 8
mbed_official 76:aeb1df146756 451 * @arg LCD_RAMRegister_9: LCD RAM Register 9
mbed_official 76:aeb1df146756 452 * @arg LCD_RAMRegister_10: LCD RAM Register 10
mbed_official 76:aeb1df146756 453 * @arg LCD_RAMRegister_11: LCD RAM Register 11
mbed_official 76:aeb1df146756 454 * @arg LCD_RAMRegister_12: LCD RAM Register 12
mbed_official 76:aeb1df146756 455 * @arg LCD_RAMRegister_13: LCD RAM Register 13
mbed_official 76:aeb1df146756 456 * @arg LCD_RAMRegister_14: LCD RAM Register 14
mbed_official 76:aeb1df146756 457 * @arg LCD_RAMRegister_15: LCD RAM Register 15
mbed_official 76:aeb1df146756 458 * @param LCD_Data: specifies LCD Data Value to be written.
mbed_official 76:aeb1df146756 459 * @retval None
mbed_official 76:aeb1df146756 460 */
mbed_official 76:aeb1df146756 461 void LCD_Write(uint32_t LCD_RAMRegister, uint32_t LCD_Data)
mbed_official 76:aeb1df146756 462 {
mbed_official 76:aeb1df146756 463 /* Check the parameters */
mbed_official 76:aeb1df146756 464 assert_param(IS_LCD_RAM_REGISTER(LCD_RAMRegister));
mbed_official 76:aeb1df146756 465
mbed_official 76:aeb1df146756 466 /* Copy data bytes to RAM register */
mbed_official 76:aeb1df146756 467 LCD->RAM[LCD_RAMRegister] = (uint32_t)LCD_Data;
mbed_official 76:aeb1df146756 468 }
mbed_official 76:aeb1df146756 469
mbed_official 76:aeb1df146756 470 /**
mbed_official 76:aeb1df146756 471 * @brief Enables the Update Display Request.
mbed_official 76:aeb1df146756 472 * @note Each time software modifies the LCD_RAM it must set the UDR bit to
mbed_official 76:aeb1df146756 473 * transfer the updated data to the second level buffer.
mbed_official 76:aeb1df146756 474 * The UDR bit stays set until the end of the update and during this
mbed_official 76:aeb1df146756 475 * time the LCD_RAM is write protected.
mbed_official 76:aeb1df146756 476 * @note When the display is disabled, the update is performed for all
mbed_official 76:aeb1df146756 477 * LCD_DISPLAY locations.
mbed_official 76:aeb1df146756 478 * When the display is enabled, the update is performed only for locations
mbed_official 76:aeb1df146756 479 * for which commons are active (depending on DUTY). For example if
mbed_official 76:aeb1df146756 480 * DUTY = 1/2, only the LCD_DISPLAY of COM0 and COM1 will be updated.
mbed_official 76:aeb1df146756 481 * @param None
mbed_official 76:aeb1df146756 482 * @retval None
mbed_official 76:aeb1df146756 483 */
mbed_official 76:aeb1df146756 484 void LCD_UpdateDisplayRequest(void)
mbed_official 76:aeb1df146756 485 {
mbed_official 76:aeb1df146756 486 *(__IO uint32_t *) SR_UDR_BB = (uint32_t)0x01;
mbed_official 76:aeb1df146756 487 }
mbed_official 76:aeb1df146756 488
mbed_official 76:aeb1df146756 489 /**
mbed_official 76:aeb1df146756 490 * @}
mbed_official 76:aeb1df146756 491 */
mbed_official 76:aeb1df146756 492
mbed_official 76:aeb1df146756 493 /** @defgroup LCD_Group3 Interrupts and flags management functions
mbed_official 76:aeb1df146756 494 * @brief Interrupts and flags management functions
mbed_official 76:aeb1df146756 495 *
mbed_official 76:aeb1df146756 496 @verbatim
mbed_official 76:aeb1df146756 497 ===============================================================================
mbed_official 76:aeb1df146756 498 ##### Interrupts and flags management functions #####
mbed_official 76:aeb1df146756 499 ===============================================================================
mbed_official 76:aeb1df146756 500
mbed_official 76:aeb1df146756 501 @endverbatim
mbed_official 76:aeb1df146756 502 * @{
mbed_official 76:aeb1df146756 503 */
mbed_official 76:aeb1df146756 504
mbed_official 76:aeb1df146756 505 /**
mbed_official 76:aeb1df146756 506 * @brief Enables or disables the specified LCD interrupts.
mbed_official 76:aeb1df146756 507 * @param LCD_IT: specifies the LCD interrupts sources to be enabled or disabled.
mbed_official 76:aeb1df146756 508 * This parameter can be any combination of the following values:
mbed_official 76:aeb1df146756 509 * @arg LCD_IT_SOF: Start of Frame Interrupt
mbed_official 76:aeb1df146756 510 * @arg LCD_IT_UDD: Update Display Done Interrupt
mbed_official 76:aeb1df146756 511 * @param NewState: new state of the specified LCD interrupts.
mbed_official 76:aeb1df146756 512 * This parameter can be: ENABLE or DISABLE.
mbed_official 76:aeb1df146756 513 * @retval None
mbed_official 76:aeb1df146756 514 */
mbed_official 76:aeb1df146756 515 void LCD_ITConfig(uint32_t LCD_IT, FunctionalState NewState)
mbed_official 76:aeb1df146756 516 {
mbed_official 76:aeb1df146756 517 /* Check the parameters */
mbed_official 76:aeb1df146756 518 assert_param(IS_LCD_IT(LCD_IT));
mbed_official 76:aeb1df146756 519 assert_param(IS_FUNCTIONAL_STATE(NewState));
mbed_official 76:aeb1df146756 520
mbed_official 76:aeb1df146756 521 if (NewState != DISABLE)
mbed_official 76:aeb1df146756 522 {
mbed_official 76:aeb1df146756 523 LCD->FCR |= LCD_IT;
mbed_official 76:aeb1df146756 524 }
mbed_official 76:aeb1df146756 525 else
mbed_official 76:aeb1df146756 526 {
mbed_official 76:aeb1df146756 527 LCD->FCR &= (uint32_t)~LCD_IT;
mbed_official 76:aeb1df146756 528 }
mbed_official 76:aeb1df146756 529 }
mbed_official 76:aeb1df146756 530
mbed_official 76:aeb1df146756 531 /**
mbed_official 76:aeb1df146756 532 * @brief Checks whether the specified LCD flag is set or not.
mbed_official 76:aeb1df146756 533 * @param LCD_FLAG: specifies the flag to check.
mbed_official 76:aeb1df146756 534 * This parameter can be one of the following values:
mbed_official 76:aeb1df146756 535 * @arg LCD_FLAG_ENS: LCD Enabled flag. It indicates the LCD controller status.
mbed_official 76:aeb1df146756 536 * @note The ENS bit is set immediately when the LCDEN bit in the LCD_CR
mbed_official 76:aeb1df146756 537 * goes from 0 to 1. On deactivation it reflects the real status of
mbed_official 76:aeb1df146756 538 * LCD so it becomes 0 at the end of the last displayed frame.
mbed_official 76:aeb1df146756 539 * @arg LCD_FLAG_SOF: Start of Frame flag. This flag is set by hardware at
mbed_official 76:aeb1df146756 540 * the beginning of a new frame, at the same time as the display data is
mbed_official 76:aeb1df146756 541 * updated.
mbed_official 76:aeb1df146756 542 * @arg LCD_FLAG_UDR: Update Display Request flag.
mbed_official 76:aeb1df146756 543 * @arg LCD_FLAG_UDD: Update Display Done flag.
mbed_official 76:aeb1df146756 544 * @arg LCD_FLAG_RDY: Step_up converter Ready flag. It indicates the status
mbed_official 76:aeb1df146756 545 * of the step-up converter.
mbed_official 76:aeb1df146756 546 * @arg LCD_FLAG_FCRSF: LCD Frame Control Register Synchronization Flag.
mbed_official 76:aeb1df146756 547 * This flag is set by hardware each time the LCD_FCR register is updated
mbed_official 76:aeb1df146756 548 * in the LCDCLK domain.
mbed_official 76:aeb1df146756 549 * @retval The new state of LCD_FLAG (SET or RESET).
mbed_official 76:aeb1df146756 550 */
mbed_official 76:aeb1df146756 551 FlagStatus LCD_GetFlagStatus(uint32_t LCD_FLAG)
mbed_official 76:aeb1df146756 552 {
mbed_official 76:aeb1df146756 553 FlagStatus bitstatus = RESET;
mbed_official 76:aeb1df146756 554
mbed_official 76:aeb1df146756 555 /* Check the parameters */
mbed_official 76:aeb1df146756 556 assert_param(IS_LCD_GET_FLAG(LCD_FLAG));
mbed_official 76:aeb1df146756 557
mbed_official 76:aeb1df146756 558 if ((LCD->SR & LCD_FLAG) != (uint32_t)RESET)
mbed_official 76:aeb1df146756 559 {
mbed_official 76:aeb1df146756 560 bitstatus = SET;
mbed_official 76:aeb1df146756 561 }
mbed_official 76:aeb1df146756 562 else
mbed_official 76:aeb1df146756 563 {
mbed_official 76:aeb1df146756 564 bitstatus = RESET;
mbed_official 76:aeb1df146756 565 }
mbed_official 76:aeb1df146756 566 return bitstatus;
mbed_official 76:aeb1df146756 567 }
mbed_official 76:aeb1df146756 568
mbed_official 76:aeb1df146756 569 /**
mbed_official 76:aeb1df146756 570 * @brief Clears the LCD's pending flags.
mbed_official 76:aeb1df146756 571 * @param LCD_FLAG: specifies the flag to clear.
mbed_official 76:aeb1df146756 572 * This parameter can be any combination of the following values:
mbed_official 76:aeb1df146756 573 * @arg LCD_FLAG_SOF: Start of Frame Interrupt
mbed_official 76:aeb1df146756 574 * @arg LCD_FLAG_UDD: Update Display Done Interrupt
mbed_official 76:aeb1df146756 575 * @retval None
mbed_official 76:aeb1df146756 576 */
mbed_official 76:aeb1df146756 577 void LCD_ClearFlag(uint32_t LCD_FLAG)
mbed_official 76:aeb1df146756 578 {
mbed_official 76:aeb1df146756 579 /* Check the parameters */
mbed_official 76:aeb1df146756 580 assert_param(IS_LCD_CLEAR_FLAG(LCD_FLAG));
mbed_official 76:aeb1df146756 581
mbed_official 76:aeb1df146756 582 /* Clear the corresponding LCD flag */
mbed_official 76:aeb1df146756 583 LCD->CLR = (uint32_t)LCD_FLAG;
mbed_official 76:aeb1df146756 584 }
mbed_official 76:aeb1df146756 585
mbed_official 76:aeb1df146756 586 /**
mbed_official 76:aeb1df146756 587 * @brief Checks whether the specified RTC interrupt has occurred or not.
mbed_official 76:aeb1df146756 588 * @param LCD_IT: specifies the LCD interrupts sources to check.
mbed_official 76:aeb1df146756 589 * This parameter can be one of the following values:
mbed_official 76:aeb1df146756 590 * @arg LCD_IT_SOF: Start of Frame Interrupt
mbed_official 76:aeb1df146756 591 * @arg LCD_IT_UDD: Update Display Done Interrupt.
mbed_official 76:aeb1df146756 592 * @note If the device is in STOP mode (PCLK not provided) UDD will not
mbed_official 76:aeb1df146756 593 * generate an interrupt even if UDDIE = 1.
mbed_official 76:aeb1df146756 594 * If the display is not enabled the UDD interrupt will never occur.
mbed_official 76:aeb1df146756 595 * @retval The new state of the LCD_IT (SET or RESET).
mbed_official 76:aeb1df146756 596 */
mbed_official 76:aeb1df146756 597 ITStatus LCD_GetITStatus(uint32_t LCD_IT)
mbed_official 76:aeb1df146756 598 {
mbed_official 76:aeb1df146756 599 ITStatus bitstatus = RESET;
mbed_official 76:aeb1df146756 600
mbed_official 76:aeb1df146756 601 /* Check the parameters */
mbed_official 76:aeb1df146756 602 assert_param(IS_LCD_GET_IT(LCD_IT));
mbed_official 76:aeb1df146756 603
mbed_official 76:aeb1df146756 604 if ((LCD->SR & LCD_IT) != (uint16_t)RESET)
mbed_official 76:aeb1df146756 605 {
mbed_official 76:aeb1df146756 606 bitstatus = SET;
mbed_official 76:aeb1df146756 607 }
mbed_official 76:aeb1df146756 608 else
mbed_official 76:aeb1df146756 609 {
mbed_official 76:aeb1df146756 610 bitstatus = RESET;
mbed_official 76:aeb1df146756 611 }
mbed_official 76:aeb1df146756 612
mbed_official 76:aeb1df146756 613 if (((LCD->FCR & LCD_IT) != (uint16_t)RESET) && (bitstatus != (uint32_t)RESET))
mbed_official 76:aeb1df146756 614 {
mbed_official 76:aeb1df146756 615 bitstatus = SET;
mbed_official 76:aeb1df146756 616 }
mbed_official 76:aeb1df146756 617 else
mbed_official 76:aeb1df146756 618 {
mbed_official 76:aeb1df146756 619 bitstatus = RESET;
mbed_official 76:aeb1df146756 620 }
mbed_official 76:aeb1df146756 621 return bitstatus;
mbed_official 76:aeb1df146756 622 }
mbed_official 76:aeb1df146756 623
mbed_official 76:aeb1df146756 624 /**
mbed_official 76:aeb1df146756 625 * @brief Clears the LCD's interrupt pending bits.
mbed_official 76:aeb1df146756 626 * @param LCD_IT: specifies the interrupt pending bit to clear.
mbed_official 76:aeb1df146756 627 * This parameter can be any combination of the following values:
mbed_official 76:aeb1df146756 628 * @arg LCD_IT_SOF: Start of Frame Interrupt
mbed_official 76:aeb1df146756 629 * @arg LCD_IT_UDD: Update Display Done Interrupt
mbed_official 76:aeb1df146756 630 * @retval None
mbed_official 76:aeb1df146756 631 */
mbed_official 76:aeb1df146756 632 void LCD_ClearITPendingBit(uint32_t LCD_IT)
mbed_official 76:aeb1df146756 633 {
mbed_official 76:aeb1df146756 634 /* Check the parameters */
mbed_official 76:aeb1df146756 635 assert_param(IS_LCD_IT(LCD_IT));
mbed_official 76:aeb1df146756 636
mbed_official 76:aeb1df146756 637 /* Clear the corresponding LCD pending bit */
mbed_official 76:aeb1df146756 638 LCD->CLR = (uint32_t)LCD_IT;
mbed_official 76:aeb1df146756 639 }
mbed_official 76:aeb1df146756 640
mbed_official 76:aeb1df146756 641 /**
mbed_official 76:aeb1df146756 642 * @}
mbed_official 76:aeb1df146756 643 */
mbed_official 76:aeb1df146756 644
mbed_official 76:aeb1df146756 645 /**
mbed_official 76:aeb1df146756 646 * @}
mbed_official 76:aeb1df146756 647 */
mbed_official 76:aeb1df146756 648
mbed_official 76:aeb1df146756 649 /**
mbed_official 76:aeb1df146756 650 * @}
mbed_official 76:aeb1df146756 651 */
mbed_official 76:aeb1df146756 652
mbed_official 76:aeb1df146756 653 /**
mbed_official 76:aeb1df146756 654 * @}
mbed_official 76:aeb1df146756 655 */
mbed_official 76:aeb1df146756 656
mbed_official 76:aeb1df146756 657 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/