en 129 / mbed-dev

fix LPC812 PWM

Dependents:   IR_LED_Send

Fork of mbed-dev by mbed official

targets/cmsis/TARGET_STM/TARGET_STM32L4/stm32l4xx_hal_lcd.c@129:2e517c56bcfb, 2016-05-16 (annotated)

Committer:
nameless129
Date:
Mon May 16 16:50:30 2016 +0000
Revision:
129:2e517c56bcfb
Parent:
0:9b334a45a8ff 
PWM Fix:Duty 0%??H???????????????

Who changed what in which revision?

UserRevisionLine numberNew contents of line
bogdanm 0:9b334a45a8ff 1 /**
bogdanm 0:9b334a45a8ff 2 ******************************************************************************
bogdanm 0:9b334a45a8ff 3 * @file stm32l4xx_hal_lcd.c
bogdanm 0:9b334a45a8ff 4 * @author MCD Application Team
bogdanm 0:9b334a45a8ff 5 * @version V1.0.0
bogdanm 0:9b334a45a8ff 6 * @date 26-June-2015
bogdanm 0:9b334a45a8ff 7 * @brief LCD Controller HAL module driver.
bogdanm 0:9b334a45a8ff 8 * This file provides firmware functions to manage the following
bogdanm 0:9b334a45a8ff 9 * functionalities of the LCD Controller (LCD) peripheral:
bogdanm 0:9b334a45a8ff 10 * + Initialization/de-initialization methods
bogdanm 0:9b334a45a8ff 11 * + I/O operation methods
bogdanm 0:9b334a45a8ff 12 * + Peripheral State methods
bogdanm 0:9b334a45a8ff 13 *
bogdanm 0:9b334a45a8ff 14 @verbatim
bogdanm 0:9b334a45a8ff 15 ==============================================================================
bogdanm 0:9b334a45a8ff 16 ##### How to use this driver #####
bogdanm 0:9b334a45a8ff 17 ==============================================================================
bogdanm 0:9b334a45a8ff 18 [..] The LCD HAL driver can be used as follows:
bogdanm 0:9b334a45a8ff 19
bogdanm 0:9b334a45a8ff 20 (#) Declare a LCD_HandleTypeDef handle structure.
bogdanm 0:9b334a45a8ff 21
bogdanm 0:9b334a45a8ff 22 -@- The frequency generator allows you to achieve various LCD frame rates
bogdanm 0:9b334a45a8ff 23 starting from an LCD input clock frequency (LCDCLK) which can vary
bogdanm 0:9b334a45a8ff 24 from 32 kHz up to 1 MHz.
bogdanm 0:9b334a45a8ff 25
bogdanm 0:9b334a45a8ff 26 (#) Initialize the LCD low level resources by implementing the HAL_LCD_MspInit() API:
bogdanm 0:9b334a45a8ff 27
bogdanm 0:9b334a45a8ff 28 (++) Enable the LCDCLK (same as RTCCLK): to configure the RTCCLK/LCDCLK, proceed as follows:
bogdanm 0:9b334a45a8ff 29 (+++) Use RCC function HAL_RCCEx_PeriphCLKConfig in indicating RCC_PERIPHCLK_LCD and
bogdanm 0:9b334a45a8ff 30 selected clock source (HSE, LSI or LSE)
bogdanm 0:9b334a45a8ff 31
bogdanm 0:9b334a45a8ff 32 (++) LCD pins configuration:
bogdanm 0:9b334a45a8ff 33 (+++) Enable the clock for the LCD GPIOs.
bogdanm 0:9b334a45a8ff 34 (+++) Configure these LCD pins as alternate function no-pull.
bogdanm 0:9b334a45a8ff 35 (++) Enable the LCD interface clock.
bogdanm 0:9b334a45a8ff 36
bogdanm 0:9b334a45a8ff 37
bogdanm 0:9b334a45a8ff 38 (#) Program the Prescaler, Divider, Blink mode, Blink Frequency Duty, Bias,
bogdanm 0:9b334a45a8ff 39 Voltage Source, Dead Time, Pulse On Duration, Contrast, High drive and Multiplexer
bogdanm 0:9b334a45a8ff 40 Segment in the Init structure of the LCD handle.
bogdanm 0:9b334a45a8ff 41
bogdanm 0:9b334a45a8ff 42 (#) Initialize the LCD registers by calling the HAL_LCD_Init() API.
bogdanm 0:9b334a45a8ff 43
bogdanm 0:9b334a45a8ff 44 -@- The HAL_LCD_Init() API configures also the low level Hardware GPIO, CLOCK, ...etc)
bogdanm 0:9b334a45a8ff 45 by calling the customized HAL_LCD_MspInit() API.
bogdanm 0:9b334a45a8ff 46 -@- After calling the HAL_LCD_Init() the LCD RAM memory is cleared
bogdanm 0:9b334a45a8ff 47
bogdanm 0:9b334a45a8ff 48 (#) Optionally you can update the LCD configuration using these macros:
bogdanm 0:9b334a45a8ff 49 (++) LCD High Drive using the __HAL_LCD_HIGHDRIVER_ENABLE() and __HAL_LCD_HIGHDRIVER_DISABLE() macros
bogdanm 0:9b334a45a8ff 50 (++) Voltage output buffer using __HAL_LCD_VOLTAGE_BUFFER_ENABLE() and __HAL_LCD_VOLTAGE_BUFFER_DISABLE() macros
bogdanm 0:9b334a45a8ff 51 (++) LCD Pulse ON Duration using the __HAL_LCD_PULSEONDURATION_CONFIG() macro
bogdanm 0:9b334a45a8ff 52 (++) LCD Dead Time using the __HAL_LCD_DEADTIME_CONFIG() macro
bogdanm 0:9b334a45a8ff 53 (++) The LCD Blink mode and frequency using the __HAL_LCD_BLINK_CONFIG() macro
bogdanm 0:9b334a45a8ff 54 (++) The LCD Contrast using the __HAL_LCD_CONTRAST_CONFIG() macro
bogdanm 0:9b334a45a8ff 55
bogdanm 0:9b334a45a8ff 56 (#) Write to the LCD RAM memory using the HAL_LCD_Write() API, this API can be called
bogdanm 0:9b334a45a8ff 57 more time to update the different LCD RAM registers before calling
bogdanm 0:9b334a45a8ff 58 HAL_LCD_UpdateDisplayRequest() API.
bogdanm 0:9b334a45a8ff 59
bogdanm 0:9b334a45a8ff 60 (#) The HAL_LCD_Clear() API can be used to clear the LCD RAM memory.
bogdanm 0:9b334a45a8ff 61
bogdanm 0:9b334a45a8ff 62 (#) When LCD RAM memory is updated enable the update display request using
bogdanm 0:9b334a45a8ff 63 the HAL_LCD_UpdateDisplayRequest() API.
bogdanm 0:9b334a45a8ff 64
bogdanm 0:9b334a45a8ff 65 [..] LCD and low power modes:
bogdanm 0:9b334a45a8ff 66 (#) The LCD remain active during Sleep, Low Power run, Low Power Sleep and
bogdanm 0:9b334a45a8ff 67 STOP modes.
bogdanm 0:9b334a45a8ff 68
bogdanm 0:9b334a45a8ff 69 @endverbatim
bogdanm 0:9b334a45a8ff 70 ******************************************************************************
bogdanm 0:9b334a45a8ff 71 * @attention
bogdanm 0:9b334a45a8ff 72 *
bogdanm 0:9b334a45a8ff 73 * <h2><center>&copy; COPYRIGHT(c) 2015 STMicroelectronics</center></h2>
bogdanm 0:9b334a45a8ff 74 *
bogdanm 0:9b334a45a8ff 75 * Redistribution and use in source and binary forms, with or without modification,
bogdanm 0:9b334a45a8ff 76 * are permitted provided that the following conditions are met:
bogdanm 0:9b334a45a8ff 77 * 1. Redistributions of source code must retain the above copyright notice,
bogdanm 0:9b334a45a8ff 78 * this list of conditions and the following disclaimer.
bogdanm 0:9b334a45a8ff 79 * 2. Redistributions in binary form must reproduce the above copyright notice,
bogdanm 0:9b334a45a8ff 80 * this list of conditions and the following disclaimer in the documentation
bogdanm 0:9b334a45a8ff 81 * and/or other materials provided with the distribution.
bogdanm 0:9b334a45a8ff 82 * 3. Neither the name of STMicroelectronics nor the names of its contributors
bogdanm 0:9b334a45a8ff 83 * may be used to endorse or promote products derived from this software
bogdanm 0:9b334a45a8ff 84 * without specific prior written permission.
bogdanm 0:9b334a45a8ff 85 *
bogdanm 0:9b334a45a8ff 86 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
bogdanm 0:9b334a45a8ff 87 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
bogdanm 0:9b334a45a8ff 88 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
bogdanm 0:9b334a45a8ff 89 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
bogdanm 0:9b334a45a8ff 90 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
bogdanm 0:9b334a45a8ff 91 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
bogdanm 0:9b334a45a8ff 92 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
bogdanm 0:9b334a45a8ff 93 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
bogdanm 0:9b334a45a8ff 94 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
bogdanm 0:9b334a45a8ff 95 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
bogdanm 0:9b334a45a8ff 96 *
bogdanm 0:9b334a45a8ff 97 ******************************************************************************
bogdanm 0:9b334a45a8ff 98 */
bogdanm 0:9b334a45a8ff 99
bogdanm 0:9b334a45a8ff 100 /* Includes ------------------------------------------------------------------*/
bogdanm 0:9b334a45a8ff 101 #include "stm32l4xx_hal.h"
bogdanm 0:9b334a45a8ff 102
bogdanm 0:9b334a45a8ff 103 #if defined(STM32L476xx) || defined(STM32L486xx)
bogdanm 0:9b334a45a8ff 104
bogdanm 0:9b334a45a8ff 105 /** @addtogroup STM32L4xx_HAL_Driver
bogdanm 0:9b334a45a8ff 106 * @{
bogdanm 0:9b334a45a8ff 107 */
bogdanm 0:9b334a45a8ff 108
bogdanm 0:9b334a45a8ff 109 #ifdef HAL_LCD_MODULE_ENABLED
bogdanm 0:9b334a45a8ff 110
bogdanm 0:9b334a45a8ff 111 /** @defgroup LCD LCD
bogdanm 0:9b334a45a8ff 112 * @brief LCD HAL module driver
bogdanm 0:9b334a45a8ff 113 * @{
bogdanm 0:9b334a45a8ff 114 */
bogdanm 0:9b334a45a8ff 115
bogdanm 0:9b334a45a8ff 116 /* Private typedef -----------------------------------------------------------*/
bogdanm 0:9b334a45a8ff 117 /* Private define ------------------------------------------------------------*/
bogdanm 0:9b334a45a8ff 118 /** @defgroup LCD_Private_Defines LCD Private Defines
bogdanm 0:9b334a45a8ff 119 * @{
bogdanm 0:9b334a45a8ff 120 */
bogdanm 0:9b334a45a8ff 121
bogdanm 0:9b334a45a8ff 122 #define LCD_TIMEOUT_VALUE 1000
bogdanm 0:9b334a45a8ff 123
bogdanm 0:9b334a45a8ff 124 /**
bogdanm 0:9b334a45a8ff 125 * @}
bogdanm 0:9b334a45a8ff 126 */
bogdanm 0:9b334a45a8ff 127
bogdanm 0:9b334a45a8ff 128 /* Private macro -------------------------------------------------------------*/
bogdanm 0:9b334a45a8ff 129 /* Private variables ---------------------------------------------------------*/
bogdanm 0:9b334a45a8ff 130 /* Private function prototypes -----------------------------------------------*/
bogdanm 0:9b334a45a8ff 131 /* Exported functions --------------------------------------------------------*/
bogdanm 0:9b334a45a8ff 132
bogdanm 0:9b334a45a8ff 133 /** @defgroup LCD_Exported_Functions LCD Exported Functions
bogdanm 0:9b334a45a8ff 134 * @{
bogdanm 0:9b334a45a8ff 135 */
bogdanm 0:9b334a45a8ff 136
bogdanm 0:9b334a45a8ff 137 /** @defgroup LCD_Exported_Functions_Group1 Initialization/de-initialization methods
bogdanm 0:9b334a45a8ff 138 * @brief Initialization and Configuration functions
bogdanm 0:9b334a45a8ff 139 *
bogdanm 0:9b334a45a8ff 140 @verbatim
bogdanm 0:9b334a45a8ff 141 ===============================================================================
bogdanm 0:9b334a45a8ff 142 ##### Initialization and Configuration functions #####
bogdanm 0:9b334a45a8ff 143 ===============================================================================
bogdanm 0:9b334a45a8ff 144 [..]
bogdanm 0:9b334a45a8ff 145
bogdanm 0:9b334a45a8ff 146 @endverbatim
bogdanm 0:9b334a45a8ff 147 * @{
bogdanm 0:9b334a45a8ff 148 */
bogdanm 0:9b334a45a8ff 149
bogdanm 0:9b334a45a8ff 150 /**
bogdanm 0:9b334a45a8ff 151 * @brief Initialize the LCD peripheral according to the specified parameters
bogdanm 0:9b334a45a8ff 152 * in the LCD_InitStruct and initialize the associated handle.
bogdanm 0:9b334a45a8ff 153 * @note This function can be used only when the LCD is disabled.
bogdanm 0:9b334a45a8ff 154 * @param hlcd: LCD handle
bogdanm 0:9b334a45a8ff 155 * @retval None
bogdanm 0:9b334a45a8ff 156 */
bogdanm 0:9b334a45a8ff 157 HAL_StatusTypeDef HAL_LCD_Init(LCD_HandleTypeDef *hlcd)
bogdanm 0:9b334a45a8ff 158 {
bogdanm 0:9b334a45a8ff 159 uint32_t tickstart = 0x00;
bogdanm 0:9b334a45a8ff 160 uint32_t counter = 0;
bogdanm 0:9b334a45a8ff 161
bogdanm 0:9b334a45a8ff 162 /* Check the LCD handle allocation */
bogdanm 0:9b334a45a8ff 163 if(hlcd == NULL)
bogdanm 0:9b334a45a8ff 164 {
bogdanm 0:9b334a45a8ff 165 return HAL_ERROR;
bogdanm 0:9b334a45a8ff 166 }
bogdanm 0:9b334a45a8ff 167
bogdanm 0:9b334a45a8ff 168 /* Check function parameters */
bogdanm 0:9b334a45a8ff 169 assert_param(IS_LCD_ALL_INSTANCE(hlcd->Instance));
bogdanm 0:9b334a45a8ff 170 assert_param(IS_LCD_PRESCALER(hlcd->Init.Prescaler));
bogdanm 0:9b334a45a8ff 171 assert_param(IS_LCD_DIVIDER(hlcd->Init.Divider));
bogdanm 0:9b334a45a8ff 172 assert_param(IS_LCD_DUTY(hlcd->Init.Duty));
bogdanm 0:9b334a45a8ff 173 assert_param(IS_LCD_BIAS(hlcd->Init.Bias));
bogdanm 0:9b334a45a8ff 174 assert_param(IS_LCD_VOLTAGE_SOURCE(hlcd->Init.VoltageSource));
bogdanm 0:9b334a45a8ff 175 assert_param(IS_LCD_PULSE_ON_DURATION(hlcd->Init.PulseOnDuration));
bogdanm 0:9b334a45a8ff 176 assert_param(IS_LCD_HIGH_DRIVE(hlcd->Init.HighDrive));
bogdanm 0:9b334a45a8ff 177 assert_param(IS_LCD_DEAD_TIME(hlcd->Init.DeadTime));
bogdanm 0:9b334a45a8ff 178 assert_param(IS_LCD_CONTRAST(hlcd->Init.Contrast));
bogdanm 0:9b334a45a8ff 179 assert_param(IS_LCD_BLINK_FREQUENCY(hlcd->Init.BlinkFrequency));
bogdanm 0:9b334a45a8ff 180 assert_param(IS_LCD_BLINK_MODE(hlcd->Init.BlinkMode));
bogdanm 0:9b334a45a8ff 181 assert_param(IS_LCD_MUX_SEGMENT(hlcd->Init.MuxSegment));
bogdanm 0:9b334a45a8ff 182
bogdanm 0:9b334a45a8ff 183 if(hlcd->State == HAL_LCD_STATE_RESET)
bogdanm 0:9b334a45a8ff 184 {
bogdanm 0:9b334a45a8ff 185 /* Allocate lock resource and initialize it */
bogdanm 0:9b334a45a8ff 186 hlcd->Lock = HAL_UNLOCKED;
bogdanm 0:9b334a45a8ff 187
bogdanm 0:9b334a45a8ff 188 /* Initialize the low level hardware (MSP) */
bogdanm 0:9b334a45a8ff 189 HAL_LCD_MspInit(hlcd);
bogdanm 0:9b334a45a8ff 190 }
bogdanm 0:9b334a45a8ff 191
bogdanm 0:9b334a45a8ff 192 hlcd->State = HAL_LCD_STATE_BUSY;
bogdanm 0:9b334a45a8ff 193
bogdanm 0:9b334a45a8ff 194 /* Disable the peripheral */
bogdanm 0:9b334a45a8ff 195 __HAL_LCD_DISABLE(hlcd);
bogdanm 0:9b334a45a8ff 196
bogdanm 0:9b334a45a8ff 197 /* Clear the LCD_RAM registers and enable the display request by setting the UDR bit
bogdanm 0:9b334a45a8ff 198 in the LCD_SR register */
bogdanm 0:9b334a45a8ff 199 for(counter = LCD_RAM_REGISTER0; counter <= LCD_RAM_REGISTER15; counter++)
bogdanm 0:9b334a45a8ff 200 {
bogdanm 0:9b334a45a8ff 201 hlcd->Instance->RAM[counter] = 0;
bogdanm 0:9b334a45a8ff 202 }
bogdanm 0:9b334a45a8ff 203 /* Enable the display request */
bogdanm 0:9b334a45a8ff 204 hlcd->Instance->SR |= LCD_SR_UDR;
bogdanm 0:9b334a45a8ff 205
bogdanm 0:9b334a45a8ff 206 /* Configure the LCD Prescaler, Divider, Blink mode and Blink Frequency:
bogdanm 0:9b334a45a8ff 207 Set PS[3:0] bits according to hlcd->Init.Prescaler value
bogdanm 0:9b334a45a8ff 208 Set DIV[3:0] bits according to hlcd->Init.Divider value
bogdanm 0:9b334a45a8ff 209 Set BLINK[1:0] bits according to hlcd->Init.BlinkMode value
bogdanm 0:9b334a45a8ff 210 Set BLINKF[2:0] bits according to hlcd->Init.BlinkFrequency value
bogdanm 0:9b334a45a8ff 211 Set DEAD[2:0] bits according to hlcd->Init.DeadTime value
bogdanm 0:9b334a45a8ff 212 Set PON[2:0] bits according to hlcd->Init.PulseOnDuration value
bogdanm 0:9b334a45a8ff 213 Set CC[2:0] bits according to hlcd->Init.Contrast value
bogdanm 0:9b334a45a8ff 214 Set HD bit according to hlcd->Init.HighDrive value */
bogdanm 0:9b334a45a8ff 215 MODIFY_REG(hlcd->Instance->FCR, \
bogdanm 0:9b334a45a8ff 216 (LCD_FCR_PS | LCD_FCR_DIV | LCD_FCR_BLINK| LCD_FCR_BLINKF | \
bogdanm 0:9b334a45a8ff 217 LCD_FCR_DEAD | LCD_FCR_PON | LCD_FCR_CC | LCD_FCR_HD), \
bogdanm 0:9b334a45a8ff 218 (hlcd->Init.Prescaler | hlcd->Init.Divider | hlcd->Init.BlinkMode | hlcd->Init.BlinkFrequency | \
bogdanm 0:9b334a45a8ff 219 hlcd->Init.DeadTime | hlcd->Init.PulseOnDuration | hlcd->Init.Contrast | hlcd->Init.HighDrive));
bogdanm 0:9b334a45a8ff 220
bogdanm 0:9b334a45a8ff 221 /* Wait until LCD Frame Control Register Synchronization flag (FCRSF) is set in the LCD_SR register
bogdanm 0:9b334a45a8ff 222 This bit is set by hardware each time the LCD_FCR register is updated in the LCDCLK
bogdanm 0:9b334a45a8ff 223 domain. It is cleared by hardware when writing to the LCD_FCR register.*/
bogdanm 0:9b334a45a8ff 224 LCD_WaitForSynchro(hlcd);
bogdanm 0:9b334a45a8ff 225
bogdanm 0:9b334a45a8ff 226 /* Configure the LCD Duty, Bias, Voltage Source, Dead Time, Pulse On Duration and Contrast:
bogdanm 0:9b334a45a8ff 227 Set DUTY[2:0] bits according to hlcd->Init.Duty value
bogdanm 0:9b334a45a8ff 228 Set BIAS[1:0] bits according to hlcd->Init.Bias value
bogdanm 0:9b334a45a8ff 229 Set VSEL bit according to hlcd->Init.VoltageSource value
bogdanm 0:9b334a45a8ff 230 Set MUX_SEG bit according to hlcd->Init.MuxSegment value */
bogdanm 0:9b334a45a8ff 231 MODIFY_REG(hlcd->Instance->CR, \
bogdanm 0:9b334a45a8ff 232 (LCD_CR_DUTY | LCD_CR_BIAS | LCD_CR_VSEL | LCD_CR_MUX_SEG), \
bogdanm 0:9b334a45a8ff 233 (hlcd->Init.Duty | hlcd->Init.Bias | hlcd->Init.VoltageSource | hlcd->Init.MuxSegment));
bogdanm 0:9b334a45a8ff 234
bogdanm 0:9b334a45a8ff 235 /* Enable the peripheral */
bogdanm 0:9b334a45a8ff 236 __HAL_LCD_ENABLE(hlcd);
bogdanm 0:9b334a45a8ff 237
bogdanm 0:9b334a45a8ff 238 /* Get timeout */
bogdanm 0:9b334a45a8ff 239 tickstart = HAL_GetTick();
bogdanm 0:9b334a45a8ff 240
bogdanm 0:9b334a45a8ff 241 /* Wait Until the LCD is enabled */
bogdanm 0:9b334a45a8ff 242 while(__HAL_LCD_GET_FLAG(hlcd, LCD_FLAG_ENS) == RESET)
bogdanm 0:9b334a45a8ff 243 {
bogdanm 0:9b334a45a8ff 244 if((HAL_GetTick() - tickstart ) > LCD_TIMEOUT_VALUE)
bogdanm 0:9b334a45a8ff 245 {
bogdanm 0:9b334a45a8ff 246 hlcd->ErrorCode = HAL_LCD_ERROR_ENS;
bogdanm 0:9b334a45a8ff 247 return HAL_TIMEOUT;
bogdanm 0:9b334a45a8ff 248 }
bogdanm 0:9b334a45a8ff 249 }
bogdanm 0:9b334a45a8ff 250
bogdanm 0:9b334a45a8ff 251 /* Get timeout */
bogdanm 0:9b334a45a8ff 252 tickstart = HAL_GetTick();
bogdanm 0:9b334a45a8ff 253
bogdanm 0:9b334a45a8ff 254 /*!< Wait Until the LCD Booster is ready */
bogdanm 0:9b334a45a8ff 255 while(__HAL_LCD_GET_FLAG(hlcd, LCD_FLAG_RDY) == RESET)
bogdanm 0:9b334a45a8ff 256 {
bogdanm 0:9b334a45a8ff 257 if((HAL_GetTick() - tickstart ) > LCD_TIMEOUT_VALUE)
bogdanm 0:9b334a45a8ff 258 {
bogdanm 0:9b334a45a8ff 259 hlcd->ErrorCode = HAL_LCD_ERROR_RDY;
bogdanm 0:9b334a45a8ff 260 return HAL_TIMEOUT;
bogdanm 0:9b334a45a8ff 261 }
bogdanm 0:9b334a45a8ff 262 }
bogdanm 0:9b334a45a8ff 263
bogdanm 0:9b334a45a8ff 264 /* Initialize the LCD state */
bogdanm 0:9b334a45a8ff 265 hlcd->ErrorCode = HAL_LCD_ERROR_NONE;
bogdanm 0:9b334a45a8ff 266 hlcd->State= HAL_LCD_STATE_READY;
bogdanm 0:9b334a45a8ff 267
bogdanm 0:9b334a45a8ff 268 return HAL_OK;
bogdanm 0:9b334a45a8ff 269 }
bogdanm 0:9b334a45a8ff 270
bogdanm 0:9b334a45a8ff 271 /**
bogdanm 0:9b334a45a8ff 272 * @brief DeInitialize the LCD peripheral.
bogdanm 0:9b334a45a8ff 273 * @param hlcd: LCD handle
bogdanm 0:9b334a45a8ff 274 * @retval HAL status
bogdanm 0:9b334a45a8ff 275 */
bogdanm 0:9b334a45a8ff 276 HAL_StatusTypeDef HAL_LCD_DeInit(LCD_HandleTypeDef *hlcd)
bogdanm 0:9b334a45a8ff 277 {
bogdanm 0:9b334a45a8ff 278 /* Check the LCD handle allocation */
bogdanm 0:9b334a45a8ff 279 if(hlcd == NULL)
bogdanm 0:9b334a45a8ff 280 {
bogdanm 0:9b334a45a8ff 281 return HAL_ERROR;
bogdanm 0:9b334a45a8ff 282 }
bogdanm 0:9b334a45a8ff 283
bogdanm 0:9b334a45a8ff 284 /* Check the parameters */
bogdanm 0:9b334a45a8ff 285 assert_param(IS_LCD_ALL_INSTANCE(hlcd->Instance));
bogdanm 0:9b334a45a8ff 286
bogdanm 0:9b334a45a8ff 287 hlcd->State = HAL_LCD_STATE_BUSY;
bogdanm 0:9b334a45a8ff 288
bogdanm 0:9b334a45a8ff 289 /* DeInit the low level hardware */
bogdanm 0:9b334a45a8ff 290 HAL_LCD_MspDeInit(hlcd);
bogdanm 0:9b334a45a8ff 291
bogdanm 0:9b334a45a8ff 292 hlcd->ErrorCode = HAL_LCD_ERROR_NONE;
bogdanm 0:9b334a45a8ff 293 hlcd->State = HAL_LCD_STATE_RESET;
bogdanm 0:9b334a45a8ff 294
bogdanm 0:9b334a45a8ff 295 /* Release Lock */
bogdanm 0:9b334a45a8ff 296 __HAL_UNLOCK(hlcd);
bogdanm 0:9b334a45a8ff 297
bogdanm 0:9b334a45a8ff 298 return HAL_OK;
bogdanm 0:9b334a45a8ff 299 }
bogdanm 0:9b334a45a8ff 300
bogdanm 0:9b334a45a8ff 301 /**
bogdanm 0:9b334a45a8ff 302 * @brief DeInitialize the LCD MSP.
bogdanm 0:9b334a45a8ff 303 * @param hlcd: LCD handle
bogdanm 0:9b334a45a8ff 304 * @retval None
bogdanm 0:9b334a45a8ff 305 */
bogdanm 0:9b334a45a8ff 306 __weak void HAL_LCD_MspDeInit(LCD_HandleTypeDef *hlcd)
bogdanm 0:9b334a45a8ff 307 {
bogdanm 0:9b334a45a8ff 308 /* NOTE: This function should not be modified, when the callback is needed,
bogdanm 0:9b334a45a8ff 309 the HAL_LCD_MspDeInit it to be implemented in the user file
bogdanm 0:9b334a45a8ff 310 */
bogdanm 0:9b334a45a8ff 311 }
bogdanm 0:9b334a45a8ff 312
bogdanm 0:9b334a45a8ff 313 /**
bogdanm 0:9b334a45a8ff 314 * @brief Initialize the LCD MSP.
bogdanm 0:9b334a45a8ff 315 * @param hlcd: LCD handle
bogdanm 0:9b334a45a8ff 316 * @retval None
bogdanm 0:9b334a45a8ff 317 */
bogdanm 0:9b334a45a8ff 318 __weak void HAL_LCD_MspInit(LCD_HandleTypeDef *hlcd)
bogdanm 0:9b334a45a8ff 319 {
bogdanm 0:9b334a45a8ff 320 /* NOTE: This function should not be modified, when the callback is needed,
bogdanm 0:9b334a45a8ff 321 the HAL_LCD_MspInit is to be implemented in the user file
bogdanm 0:9b334a45a8ff 322 */
bogdanm 0:9b334a45a8ff 323 }
bogdanm 0:9b334a45a8ff 324
bogdanm 0:9b334a45a8ff 325 /**
bogdanm 0:9b334a45a8ff 326 * @}
bogdanm 0:9b334a45a8ff 327 */
bogdanm 0:9b334a45a8ff 328
bogdanm 0:9b334a45a8ff 329 /** @defgroup LCD_Exported_Functions_Group2 IO operation methods
bogdanm 0:9b334a45a8ff 330 * @brief LCD RAM functions
bogdanm 0:9b334a45a8ff 331 *
bogdanm 0:9b334a45a8ff 332 @verbatim
bogdanm 0:9b334a45a8ff 333 ===============================================================================
bogdanm 0:9b334a45a8ff 334 ##### IO operation functions #####
bogdanm 0:9b334a45a8ff 335 ===============================================================================
bogdanm 0:9b334a45a8ff 336 [..] Using its double buffer memory the LCD controller ensures the coherency of the
bogdanm 0:9b334a45a8ff 337 displayed information without having to use interrupts to control LCD_RAM
bogdanm 0:9b334a45a8ff 338 modification.
bogdanm 0:9b334a45a8ff 339 The application software can access the first buffer level (LCD_RAM) through
bogdanm 0:9b334a45a8ff 340 the APB interface. Once it has modified the LCD_RAM using the HAL_LCD_Write() API,
bogdanm 0:9b334a45a8ff 341 it sets the UDR flag in the LCD_SR register using the HAL_LCD_UpdateDisplayRequest() API.
bogdanm 0:9b334a45a8ff 342 This UDR flag (update display request) requests the updated information to be
bogdanm 0:9b334a45a8ff 343 moved into the second buffer level (LCD_DISPLAY).
bogdanm 0:9b334a45a8ff 344 This operation is done synchronously with the frame (at the beginning of the
bogdanm 0:9b334a45a8ff 345 next frame), until the update is completed, the LCD_RAM is write protected and
bogdanm 0:9b334a45a8ff 346 the UDR flag stays high.
bogdanm 0:9b334a45a8ff 347 Once the update is completed another flag (UDD - Update Display Done) is set and
bogdanm 0:9b334a45a8ff 348 generates an interrupt if the UDDIE bit in the LCD_FCR register is set.
bogdanm 0:9b334a45a8ff 349 The time it takes to update LCD_DISPLAY is, in the worst case, one odd and one
bogdanm 0:9b334a45a8ff 350 even frame.
bogdanm 0:9b334a45a8ff 351 The update will not occur (UDR = 1 and UDD = 0) until the display is
bogdanm 0:9b334a45a8ff 352 enabled (LCDEN = 1).
bogdanm 0:9b334a45a8ff 353
bogdanm 0:9b334a45a8ff 354 @endverbatim
bogdanm 0:9b334a45a8ff 355 * @{
bogdanm 0:9b334a45a8ff 356 */
bogdanm 0:9b334a45a8ff 357
bogdanm 0:9b334a45a8ff 358 /**
bogdanm 0:9b334a45a8ff 359 * @brief Write a word in the specific LCD RAM.
bogdanm 0:9b334a45a8ff 360 * @param hlcd: LCD handle
bogdanm 0:9b334a45a8ff 361 * @param RAMRegisterIndex: specifies the LCD RAM Register.
bogdanm 0:9b334a45a8ff 362 * This parameter can be one of the following values:
bogdanm 0:9b334a45a8ff 363 * @arg LCD_RAM_REGISTER0: LCD RAM Register 0
bogdanm 0:9b334a45a8ff 364 * @arg LCD_RAM_REGISTER1: LCD RAM Register 1
bogdanm 0:9b334a45a8ff 365 * @arg LCD_RAM_REGISTER2: LCD RAM Register 2
bogdanm 0:9b334a45a8ff 366 * @arg LCD_RAM_REGISTER3: LCD RAM Register 3
bogdanm 0:9b334a45a8ff 367 * @arg LCD_RAM_REGISTER4: LCD RAM Register 4
bogdanm 0:9b334a45a8ff 368 * @arg LCD_RAM_REGISTER5: LCD RAM Register 5
bogdanm 0:9b334a45a8ff 369 * @arg LCD_RAM_REGISTER6: LCD RAM Register 6
bogdanm 0:9b334a45a8ff 370 * @arg LCD_RAM_REGISTER7: LCD RAM Register 7
bogdanm 0:9b334a45a8ff 371 * @arg LCD_RAM_REGISTER8: LCD RAM Register 8
bogdanm 0:9b334a45a8ff 372 * @arg LCD_RAM_REGISTER9: LCD RAM Register 9
bogdanm 0:9b334a45a8ff 373 * @arg LCD_RAM_REGISTER10: LCD RAM Register 10
bogdanm 0:9b334a45a8ff 374 * @arg LCD_RAM_REGISTER11: LCD RAM Register 11
bogdanm 0:9b334a45a8ff 375 * @arg LCD_RAM_REGISTER12: LCD RAM Register 12
bogdanm 0:9b334a45a8ff 376 * @arg LCD_RAM_REGISTER13: LCD RAM Register 13
bogdanm 0:9b334a45a8ff 377 * @arg LCD_RAM_REGISTER14: LCD RAM Register 14
bogdanm 0:9b334a45a8ff 378 * @arg LCD_RAM_REGISTER15: LCD RAM Register 15
bogdanm 0:9b334a45a8ff 379 * @param RAMRegisterMask: specifies the LCD RAM Register Data Mask.
bogdanm 0:9b334a45a8ff 380 * @param Data: specifies LCD Data Value to be written.
bogdanm 0:9b334a45a8ff 381 * @retval None
bogdanm 0:9b334a45a8ff 382 */
bogdanm 0:9b334a45a8ff 383 HAL_StatusTypeDef HAL_LCD_Write(LCD_HandleTypeDef *hlcd, uint32_t RAMRegisterIndex, uint32_t RAMRegisterMask, uint32_t Data)
bogdanm 0:9b334a45a8ff 384 {
bogdanm 0:9b334a45a8ff 385 uint32_t tickstart = 0x00;
bogdanm 0:9b334a45a8ff 386
bogdanm 0:9b334a45a8ff 387 if((hlcd->State == HAL_LCD_STATE_READY) || (hlcd->State == HAL_LCD_STATE_BUSY))
bogdanm 0:9b334a45a8ff 388 {
bogdanm 0:9b334a45a8ff 389 /* Check the parameters */
bogdanm 0:9b334a45a8ff 390 assert_param(IS_LCD_RAM_REGISTER(RAMRegisterIndex));
bogdanm 0:9b334a45a8ff 391
bogdanm 0:9b334a45a8ff 392 if(hlcd->State == HAL_LCD_STATE_READY)
bogdanm 0:9b334a45a8ff 393 {
bogdanm 0:9b334a45a8ff 394 /* Process Locked */
bogdanm 0:9b334a45a8ff 395 __HAL_LOCK(hlcd);
bogdanm 0:9b334a45a8ff 396 hlcd->State = HAL_LCD_STATE_BUSY;
bogdanm 0:9b334a45a8ff 397
bogdanm 0:9b334a45a8ff 398 /* Get timeout */
bogdanm 0:9b334a45a8ff 399 tickstart = HAL_GetTick();
bogdanm 0:9b334a45a8ff 400
bogdanm 0:9b334a45a8ff 401 /*!< Wait Until the LCD is ready */
bogdanm 0:9b334a45a8ff 402 while(__HAL_LCD_GET_FLAG(hlcd, LCD_FLAG_UDR) != RESET)
bogdanm 0:9b334a45a8ff 403 {
bogdanm 0:9b334a45a8ff 404 if((HAL_GetTick() - tickstart ) > LCD_TIMEOUT_VALUE)
bogdanm 0:9b334a45a8ff 405 {
bogdanm 0:9b334a45a8ff 406 hlcd->ErrorCode = HAL_LCD_ERROR_UDR;
bogdanm 0:9b334a45a8ff 407
bogdanm 0:9b334a45a8ff 408 /* Process Unlocked */
bogdanm 0:9b334a45a8ff 409 __HAL_UNLOCK(hlcd);
bogdanm 0:9b334a45a8ff 410
bogdanm 0:9b334a45a8ff 411 return HAL_TIMEOUT;
bogdanm 0:9b334a45a8ff 412 }
bogdanm 0:9b334a45a8ff 413 }
bogdanm 0:9b334a45a8ff 414 }
bogdanm 0:9b334a45a8ff 415
bogdanm 0:9b334a45a8ff 416 /* Copy the new Data bytes to LCD RAM register */
bogdanm 0:9b334a45a8ff 417 MODIFY_REG(hlcd->Instance->RAM[RAMRegisterIndex], ~(RAMRegisterMask), Data);
bogdanm 0:9b334a45a8ff 418
bogdanm 0:9b334a45a8ff 419 return HAL_OK;
bogdanm 0:9b334a45a8ff 420 }
bogdanm 0:9b334a45a8ff 421 else
bogdanm 0:9b334a45a8ff 422 {
bogdanm 0:9b334a45a8ff 423 return HAL_ERROR;
bogdanm 0:9b334a45a8ff 424 }
bogdanm 0:9b334a45a8ff 425 }
bogdanm 0:9b334a45a8ff 426
bogdanm 0:9b334a45a8ff 427 /**
bogdanm 0:9b334a45a8ff 428 * @brief Clear the LCD RAM registers.
bogdanm 0:9b334a45a8ff 429 * @param hlcd: LCD handle
bogdanm 0:9b334a45a8ff 430 * @retval None
bogdanm 0:9b334a45a8ff 431 */
bogdanm 0:9b334a45a8ff 432 HAL_StatusTypeDef HAL_LCD_Clear(LCD_HandleTypeDef *hlcd)
bogdanm 0:9b334a45a8ff 433 {
bogdanm 0:9b334a45a8ff 434 uint32_t tickstart = 0x00;
bogdanm 0:9b334a45a8ff 435 uint32_t counter = 0;
bogdanm 0:9b334a45a8ff 436
bogdanm 0:9b334a45a8ff 437 if((hlcd->State == HAL_LCD_STATE_READY) || (hlcd->State == HAL_LCD_STATE_BUSY))
bogdanm 0:9b334a45a8ff 438 {
bogdanm 0:9b334a45a8ff 439 /* Process Locked */
bogdanm 0:9b334a45a8ff 440 __HAL_LOCK(hlcd);
bogdanm 0:9b334a45a8ff 441
bogdanm 0:9b334a45a8ff 442 hlcd->State = HAL_LCD_STATE_BUSY;
bogdanm 0:9b334a45a8ff 443
bogdanm 0:9b334a45a8ff 444 /* Get timeout */
bogdanm 0:9b334a45a8ff 445 tickstart = HAL_GetTick();
bogdanm 0:9b334a45a8ff 446
bogdanm 0:9b334a45a8ff 447 /*!< Wait Until the LCD is ready */
bogdanm 0:9b334a45a8ff 448 while(__HAL_LCD_GET_FLAG(hlcd, LCD_FLAG_UDR) != RESET)
bogdanm 0:9b334a45a8ff 449 {
bogdanm 0:9b334a45a8ff 450 if((HAL_GetTick() - tickstart ) > LCD_TIMEOUT_VALUE)
bogdanm 0:9b334a45a8ff 451 {
bogdanm 0:9b334a45a8ff 452 hlcd->ErrorCode = HAL_LCD_ERROR_UDR;
bogdanm 0:9b334a45a8ff 453
bogdanm 0:9b334a45a8ff 454 /* Process Unlocked */
bogdanm 0:9b334a45a8ff 455 __HAL_UNLOCK(hlcd);
bogdanm 0:9b334a45a8ff 456
bogdanm 0:9b334a45a8ff 457 return HAL_TIMEOUT;
bogdanm 0:9b334a45a8ff 458 }
bogdanm 0:9b334a45a8ff 459 }
bogdanm 0:9b334a45a8ff 460 /* Clear the LCD_RAM registers */
bogdanm 0:9b334a45a8ff 461 for(counter = LCD_RAM_REGISTER0; counter <= LCD_RAM_REGISTER15; counter++)
bogdanm 0:9b334a45a8ff 462 {
bogdanm 0:9b334a45a8ff 463 hlcd->Instance->RAM[counter] = 0;
bogdanm 0:9b334a45a8ff 464 }
bogdanm 0:9b334a45a8ff 465
bogdanm 0:9b334a45a8ff 466 /* Update the LCD display */
bogdanm 0:9b334a45a8ff 467 HAL_LCD_UpdateDisplayRequest(hlcd);
bogdanm 0:9b334a45a8ff 468
bogdanm 0:9b334a45a8ff 469 return HAL_OK;
bogdanm 0:9b334a45a8ff 470 }
bogdanm 0:9b334a45a8ff 471 else
bogdanm 0:9b334a45a8ff 472 {
bogdanm 0:9b334a45a8ff 473 return HAL_ERROR;
bogdanm 0:9b334a45a8ff 474 }
bogdanm 0:9b334a45a8ff 475 }
bogdanm 0:9b334a45a8ff 476
bogdanm 0:9b334a45a8ff 477 /**
bogdanm 0:9b334a45a8ff 478 * @brief Enable the Update Display Request.
bogdanm 0:9b334a45a8ff 479 * @param hlcd: LCD handle
bogdanm 0:9b334a45a8ff 480 * @note Each time software modifies the LCD_RAM it must set the UDR bit to
bogdanm 0:9b334a45a8ff 481 * transfer the updated data to the second level buffer.
bogdanm 0:9b334a45a8ff 482 * The UDR bit stays set until the end of the update and during this
bogdanm 0:9b334a45a8ff 483 * time the LCD_RAM is write protected.
bogdanm 0:9b334a45a8ff 484 * @note When the display is disabled, the update is performed for all
bogdanm 0:9b334a45a8ff 485 * LCD_DISPLAY locations.
bogdanm 0:9b334a45a8ff 486 * When the display is enabled, the update is performed only for locations
bogdanm 0:9b334a45a8ff 487 * for which commons are active (depending on DUTY). For example if
bogdanm 0:9b334a45a8ff 488 * DUTY = 1/2, only the LCD_DISPLAY of COM0 and COM1 will be updated.
bogdanm 0:9b334a45a8ff 489 * @retval None
bogdanm 0:9b334a45a8ff 490 */
bogdanm 0:9b334a45a8ff 491 HAL_StatusTypeDef HAL_LCD_UpdateDisplayRequest(LCD_HandleTypeDef *hlcd)
bogdanm 0:9b334a45a8ff 492 {
bogdanm 0:9b334a45a8ff 493 uint32_t tickstart = 0x00;
bogdanm 0:9b334a45a8ff 494
bogdanm 0:9b334a45a8ff 495 /* Clear the Update Display Done flag before starting the update display request */
bogdanm 0:9b334a45a8ff 496 __HAL_LCD_CLEAR_FLAG(hlcd, LCD_FLAG_UDD);
bogdanm 0:9b334a45a8ff 497
bogdanm 0:9b334a45a8ff 498 /* Enable the display request */
bogdanm 0:9b334a45a8ff 499 hlcd->Instance->SR |= LCD_SR_UDR;
bogdanm 0:9b334a45a8ff 500
bogdanm 0:9b334a45a8ff 501 /* Get timeout */
bogdanm 0:9b334a45a8ff 502 tickstart = HAL_GetTick();
bogdanm 0:9b334a45a8ff 503
bogdanm 0:9b334a45a8ff 504 /*!< Wait Until the LCD display is done */
bogdanm 0:9b334a45a8ff 505 while(__HAL_LCD_GET_FLAG(hlcd, LCD_FLAG_UDD) == RESET)
bogdanm 0:9b334a45a8ff 506 {
bogdanm 0:9b334a45a8ff 507 if((HAL_GetTick() - tickstart ) > LCD_TIMEOUT_VALUE)
bogdanm 0:9b334a45a8ff 508 {
bogdanm 0:9b334a45a8ff 509 hlcd->ErrorCode = HAL_LCD_ERROR_UDD;
bogdanm 0:9b334a45a8ff 510
bogdanm 0:9b334a45a8ff 511 /* Process Unlocked */
bogdanm 0:9b334a45a8ff 512 __HAL_UNLOCK(hlcd);
bogdanm 0:9b334a45a8ff 513
bogdanm 0:9b334a45a8ff 514 return HAL_TIMEOUT;
bogdanm 0:9b334a45a8ff 515 }
bogdanm 0:9b334a45a8ff 516 }
bogdanm 0:9b334a45a8ff 517
bogdanm 0:9b334a45a8ff 518 hlcd->State = HAL_LCD_STATE_READY;
bogdanm 0:9b334a45a8ff 519
bogdanm 0:9b334a45a8ff 520 /* Process Unlocked */
bogdanm 0:9b334a45a8ff 521 __HAL_UNLOCK(hlcd);
bogdanm 0:9b334a45a8ff 522
bogdanm 0:9b334a45a8ff 523 return HAL_OK;
bogdanm 0:9b334a45a8ff 524 }
bogdanm 0:9b334a45a8ff 525
bogdanm 0:9b334a45a8ff 526 /**
bogdanm 0:9b334a45a8ff 527 * @}
bogdanm 0:9b334a45a8ff 528 */
bogdanm 0:9b334a45a8ff 529
bogdanm 0:9b334a45a8ff 530 /** @defgroup LCD_Exported_Functions_Group3 Peripheral State methods
bogdanm 0:9b334a45a8ff 531 * @brief LCD State functions
bogdanm 0:9b334a45a8ff 532 *
bogdanm 0:9b334a45a8ff 533 @verbatim
bogdanm 0:9b334a45a8ff 534 ===============================================================================
bogdanm 0:9b334a45a8ff 535 ##### Peripheral State functions #####
bogdanm 0:9b334a45a8ff 536 ===============================================================================
bogdanm 0:9b334a45a8ff 537 [..]
bogdanm 0:9b334a45a8ff 538 This subsection provides a set of functions allowing to control the LCD:
bogdanm 0:9b334a45a8ff 539 (+) HAL_LCD_GetState() API can be helpful to check in run-time the state of the LCD peripheral State.
bogdanm 0:9b334a45a8ff 540 (+) HAL_LCD_GetError() API to return the LCD error code.
bogdanm 0:9b334a45a8ff 541 @endverbatim
bogdanm 0:9b334a45a8ff 542 * @{
bogdanm 0:9b334a45a8ff 543 */
bogdanm 0:9b334a45a8ff 544
bogdanm 0:9b334a45a8ff 545 /**
bogdanm 0:9b334a45a8ff 546 * @brief Return the LCD handle state.
bogdanm 0:9b334a45a8ff 547 * @param hlcd: LCD handle
bogdanm 0:9b334a45a8ff 548 * @retval HAL state
bogdanm 0:9b334a45a8ff 549 */
bogdanm 0:9b334a45a8ff 550 HAL_LCD_StateTypeDef HAL_LCD_GetState(LCD_HandleTypeDef *hlcd)
bogdanm 0:9b334a45a8ff 551 {
bogdanm 0:9b334a45a8ff 552 /* Return LCD handle state */
bogdanm 0:9b334a45a8ff 553 return hlcd->State;
bogdanm 0:9b334a45a8ff 554 }
bogdanm 0:9b334a45a8ff 555
bogdanm 0:9b334a45a8ff 556 /**
bogdanm 0:9b334a45a8ff 557 * @brief Return the LCD error code.
bogdanm 0:9b334a45a8ff 558 * @param hlcd: LCD handle
bogdanm 0:9b334a45a8ff 559 * @retval LCD Error Code
bogdanm 0:9b334a45a8ff 560 */
bogdanm 0:9b334a45a8ff 561 uint32_t HAL_LCD_GetError(LCD_HandleTypeDef *hlcd)
bogdanm 0:9b334a45a8ff 562 {
bogdanm 0:9b334a45a8ff 563 return hlcd->ErrorCode;
bogdanm 0:9b334a45a8ff 564 }
bogdanm 0:9b334a45a8ff 565
bogdanm 0:9b334a45a8ff 566 /**
bogdanm 0:9b334a45a8ff 567 * @}
bogdanm 0:9b334a45a8ff 568 */
bogdanm 0:9b334a45a8ff 569
bogdanm 0:9b334a45a8ff 570 /**
bogdanm 0:9b334a45a8ff 571 * @}
bogdanm 0:9b334a45a8ff 572 */
bogdanm 0:9b334a45a8ff 573
bogdanm 0:9b334a45a8ff 574 /** @defgroup LCD_Private_Functions LCD Private Functions
bogdanm 0:9b334a45a8ff 575 * @{
bogdanm 0:9b334a45a8ff 576 */
bogdanm 0:9b334a45a8ff 577
bogdanm 0:9b334a45a8ff 578 /**
bogdanm 0:9b334a45a8ff 579 * @brief Wait until the LCD FCR register is synchronized in the LCDCLK domain.
bogdanm 0:9b334a45a8ff 580 * This function must be called after any write operation to LCD_FCR register.
bogdanm 0:9b334a45a8ff 581 * @retval None
bogdanm 0:9b334a45a8ff 582 */
bogdanm 0:9b334a45a8ff 583 HAL_StatusTypeDef LCD_WaitForSynchro(LCD_HandleTypeDef *hlcd)
bogdanm 0:9b334a45a8ff 584 {
bogdanm 0:9b334a45a8ff 585 uint32_t tickstart = 0x00;
bogdanm 0:9b334a45a8ff 586
bogdanm 0:9b334a45a8ff 587 /* Get timeout */
bogdanm 0:9b334a45a8ff 588 tickstart = HAL_GetTick();
bogdanm 0:9b334a45a8ff 589
bogdanm 0:9b334a45a8ff 590 /* Loop until FCRSF flag is set */
bogdanm 0:9b334a45a8ff 591 while(__HAL_LCD_GET_FLAG(hlcd, LCD_FLAG_FCRSF) == RESET)
bogdanm 0:9b334a45a8ff 592 {
bogdanm 0:9b334a45a8ff 593 if((HAL_GetTick() - tickstart ) > LCD_TIMEOUT_VALUE)
bogdanm 0:9b334a45a8ff 594 {
bogdanm 0:9b334a45a8ff 595 hlcd->ErrorCode = HAL_LCD_ERROR_FCRSF;
bogdanm 0:9b334a45a8ff 596 return HAL_TIMEOUT;
bogdanm 0:9b334a45a8ff 597 }
bogdanm 0:9b334a45a8ff 598 }
bogdanm 0:9b334a45a8ff 599
bogdanm 0:9b334a45a8ff 600 return HAL_OK;
bogdanm 0:9b334a45a8ff 601 }
bogdanm 0:9b334a45a8ff 602
bogdanm 0:9b334a45a8ff 603 /**
bogdanm 0:9b334a45a8ff 604 * @}
bogdanm 0:9b334a45a8ff 605 */
bogdanm 0:9b334a45a8ff 606
bogdanm 0:9b334a45a8ff 607 /**
bogdanm 0:9b334a45a8ff 608 * @}
bogdanm 0:9b334a45a8ff 609 */
bogdanm 0:9b334a45a8ff 610
bogdanm 0:9b334a45a8ff 611 #endif /* STM32L476xx || STM32L486xx */
bogdanm 0:9b334a45a8ff 612
bogdanm 0:9b334a45a8ff 613 #endif /* HAL_LCD_MODULE_ENABLED */
bogdanm 0:9b334a45a8ff 614
bogdanm 0:9b334a45a8ff 615 /**
bogdanm 0:9b334a45a8ff 616 * @}
bogdanm 0:9b334a45a8ff 617 */
bogdanm 0:9b334a45a8ff 618
bogdanm 0:9b334a45a8ff 619 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
bogdanm 0:9b334a45a8ff 620