void HAL_LTDC_MspDeInit(LTDC_HandleTypeDef* hltdc)
{
if(hltdc->Instance==LTDC)
{
/* USER CODE BEGIN LTDC_MspDeInit 0 */
/* USER CODE END LTDC_MspDeInit 0 */
/* Peripheral clock disable */
__HAL_RCC_LTDC_CLK_DISABLE();
/**LTDC GPIO Configuration
PI12 ------> LTDC_HSYNC
PI13 ------> LTDC_VSYNC
PI14 ------> LTDC_CLK
PI15 ------> LTDC_R0
PJ0 ------> LTDC_R1
PJ1 ------> LTDC_R2
PJ2 ------> LTDC_R3
PJ3 ------> LTDC_R4
PJ4 ------> LTDC_R5
PJ5 ------> LTDC_R6
PJ6 ------> LTDC_R7
PJ7 ------> LTDC_G0
PJ8 ------> LTDC_G1
PJ9 ------> LTDC_G2
PJ10 ------> LTDC_G3
PJ11 ------> LTDC_G4
PK0 ------> LTDC_G5
PK1 ------> LTDC_G6
PK2 ------> LTDC_G7
PJ12 ------> LTDC_B0
PJ13 ------> LTDC_B1
PJ14 ------> LTDC_B2
PJ15 ------> LTDC_B3
PK3 ------> LTDC_B4
PK4 ------> LTDC_B5
PK5 ------> LTDC_B6
PK6 ------> LTDC_B7
PK7 ------> LTDC_DE
*/
HAL_GPIO_DeInit(GPIOI, GPIO_PIN_12|GPIO_PIN_13|GPIO_PIN_14|GPIO_PIN_15);
HAL_GPIO_DeInit(GPIOJ, GPIO_PIN_0|GPIO_PIN_1|GPIO_PIN_2|GPIO_PIN_3
|GPIO_PIN_4|GPIO_PIN_5|GPIO_PIN_6|GPIO_PIN_7
|GPIO_PIN_8|GPIO_PIN_9|GPIO_PIN_10|GPIO_PIN_11
|GPIO_PIN_12|GPIO_PIN_13|GPIO_PIN_14|GPIO_PIN_15);
HAL_GPIO_DeInit(GPIOK, GPIO_PIN_0|GPIO_PIN_1|GPIO_PIN_2|GPIO_PIN_3
|GPIO_PIN_4|GPIO_PIN_5|GPIO_PIN_6|GPIO_PIN_7);
/* USER CODE BEGIN LTDC_MspDeInit 1 */
/* USER CODE END LTDC_MspDeInit 1 */
}
}
/**
* @brief DeInitializes BSP_LCD MSP.
* @param hltdc: LTDC handle
* @param Params
* @retval None
*/
__weak void BSP_LCD_MspDeInit(LTDC_HandleTypeDef *hltdc, void *Params)
{
GPIO_InitTypeDef gpio_init_structure;
/* Disable LTDC block */
__HAL_LTDC_DISABLE(hltdc);
/* LTDC Pins deactivation */
/* GPIOE deactivation */
gpio_init_structure.Pin = GPIO_PIN_4;
HAL_GPIO_DeInit(GPIOE, gpio_init_structure.Pin);
/* GPIOG deactivation */
gpio_init_structure.Pin = GPIO_PIN_12;
HAL_GPIO_DeInit(GPIOG, gpio_init_structure.Pin);
/* GPIOI deactivation */
gpio_init_structure.Pin = GPIO_PIN_8 | GPIO_PIN_9 | GPIO_PIN_10 | GPIO_PIN_12 | \
GPIO_PIN_13 | GPIO_PIN_14 | GPIO_PIN_15;
HAL_GPIO_DeInit(GPIOI, gpio_init_structure.Pin);
/* GPIOJ deactivation */
gpio_init_structure.Pin = GPIO_PIN_0 | GPIO_PIN_1 | GPIO_PIN_2 | GPIO_PIN_3 | \
GPIO_PIN_4 | GPIO_PIN_5 | GPIO_PIN_6 | GPIO_PIN_7 | \
GPIO_PIN_8 | GPIO_PIN_9 | GPIO_PIN_10 | GPIO_PIN_11 | \
GPIO_PIN_13 | GPIO_PIN_14 | GPIO_PIN_15;
HAL_GPIO_DeInit(GPIOJ, gpio_init_structure.Pin);
/* GPIOK deactivation */
gpio_init_structure.Pin = GPIO_PIN_0 | GPIO_PIN_1 | GPIO_PIN_2 | GPIO_PIN_4 | \
GPIO_PIN_5 | GPIO_PIN_6 | GPIO_PIN_7;
HAL_GPIO_DeInit(GPIOK, gpio_init_structure.Pin);
/* Disable LTDC clock */
__HAL_RCC_LTDC_CLK_DISABLE();
/* GPIO pins clock can be shut down in the application
by surcharging this __weak function */
}
/**
* @brief Main program
* @param None
* @retval None
*/
int main(void)
{
uint8_t lcd_status = LCD_OK;
/* This sample code displays a fixed image 800x480 on LCD KoD in */
/* orientation mode landscape and DSI mode video burst */
/* STM32F4xx HAL library initialization:
- Configure the Flash prefetch, instruction and Data caches
- Systick timer is configured by default as source of time base, but user
can eventually implement his proper time base source (a general purpose
timer for example or other time source), keeping in mind that Time base
duration should be kept 1ms since PPP_TIMEOUT_VALUEs are defined and
handled in milliseconds basis.
- Set NVIC Group Priority to 4
- Low Level Initialization: global MSP (MCU Support Package) initialization
*/
HAL_Init();
/* Configure the system clock to 180 MHz */
SystemClock_Config();
/* Initialize MFX */
BSP_IO_Init();
/* Initialize used Leds */
BSP_LED_Init(LED1);
BSP_LED_Init(LED3);
/* Configure Tamper push-button */
BSP_PB_Init(BUTTON_TAMPER, BUTTON_MODE_GPIO);
/* Initialize the LCD DSI in Video Burst mode with LANDSCAPE orientation */
lcd_status = BSP_LCD_Init();
OnError_Handler(lcd_status != LCD_OK);
/* Program a line event at line 0 */
HAL_LTDC_ProgramLineEvent(&hltdc_eval, 0);
/* Copy texture to be displayed on LCD from Flash to SDRAM */
CopyPicture((uint32_t *)&candies_800x480_argb8888, (uint32_t *)LCD_FB_START_ADDRESS, 0, 0, BSP_LCD_GetXSize(), BSP_LCD_GetYSize());
BSP_LCD_LayerDefaultInit(LTDC_ACTIVE_LAYER_BACKGROUND, LCD_FB_START_ADDRESS);
BSP_LCD_SelectLayer(LTDC_ACTIVE_LAYER_BACKGROUND);
/* Prepare area to display frame number in the image displayed on LCD */
BSP_LCD_SetTextColor(LCD_COLOR_BLUE);
BSP_LCD_FillRect(0, 400, BSP_LCD_GetXSize(), 80);
BSP_LCD_SetTextColor(LCD_COLOR_WHITE);
BSP_LCD_SetBackColor(LCD_COLOR_BLUE);
BSP_LCD_SetFont(&Font16);
/* Display title */
BSP_LCD_DisplayStringAt(0, 420, (uint8_t *) "LCD_DSI_ULPM_DataClock example", CENTER_MODE);
BSP_LCD_DisplayStringAt(0, 440, (uint8_t *) "Press TAMPER button to enter ULPM", CENTER_MODE);
BSP_LCD_SetTextColor(LCD_COLOR_WHITE);
BSP_LCD_SetBackColor(LCD_COLOR_BLUE);
BSP_LCD_SetFont(&Font16);
/* Infinite loop */
while (1)
{
/* Clear previous line */
BSP_LCD_ClearStringLine(460);
/* New text to display */
sprintf(str_display, ">> Frame Nb : %lu", frameCnt);
/* Print updated frame number */
BSP_LCD_DisplayStringAt(0, 460, (uint8_t *)str_display, CENTER_MODE);
if (CheckForUserInput() > 0)
{
/* Clear previous line */
BSP_LCD_SetTextColor(LCD_COLOR_GREEN);
BSP_LCD_ClearStringLine(440);
BSP_LCD_DisplayStringAt(0, 440, (uint8_t *) "Enter ULPM - switch Off LCD 6 seconds", CENTER_MODE);
BSP_LCD_SetTextColor(LCD_COLOR_WHITE);
/* Display Off with ULPM management Data and clock lane integrated */
BSP_LCD_DisplayOff();
HAL_Delay(1000);
/* Switch Off bit LTDCEN */
__HAL_LTDC_DISABLE(&hltdc_eval);
/* Switch Off LTDC clock */
__HAL_RCC_LTDC_CLK_DISABLE();
/* Enter ultra low power mode (data and clock lanes) */
/* This means : laneByteClock is derived from PLL.PLLR : ie ck_plldsi @ 60 MHz = 360 MHz / PLLR=6 */
/* DSI State machine start and wait until ULPM state for Data and Clock lanes, then when reached, switch off PLL DPHY */
HAL_DSI_EnterULPM(&hdsi_eval);
BSP_LED_On(LED1);
HAL_Delay(6000);
BSP_LCD_ClearStringLine(440);
BSP_LCD_DisplayStringAt(0, 440, (uint8_t *) " Exited ULPM with success - Press To enter Again ULPM. ", CENTER_MODE);
/* Switch back On LTDC clock */
__HAL_RCC_LTDC_CLK_ENABLE();
/* Switch On bit LTDCEN */
__HAL_LTDC_ENABLE(&hltdc_eval);
/* Exit ultra low power mode (data and clock lanes)
* This means : PLL DPHY is first restarted and wait until locked with its initial settings
* DSI State machine ULPM Out start and wait until ULPM state is Out for Data and Clock lanes
* laneByteClock is then switched back on PLL DPHY
*/
HAL_DSI_ExitULPM(&hdsi_eval);
BSP_LED_Off(LED1);
/* Display On with ULPM exit Data and clock lane integrated */
BSP_LCD_DisplayOn();
}
}
}
void HAL_LTDC_MspDeInit(LTDC_HandleTypeDef* hltdc)
{
if(hltdc->Instance==LTDC)
{
/* USER CODE BEGIN LTDC_MspDeInit 0 */
/* USER CODE END LTDC_MspDeInit 0 */
/* Peripheral clock disable */
__HAL_RCC_LTDC_CLK_DISABLE();
/**LTDC GPIO Configuration
PE4 ------> LTDC_B0
PJ13 ------> LTDC_B1
PK7 ------> LTDC_DE
PK6 ------> LTDC_B7
PK5 ------> LTDC_B6
PG12 ------> LTDC_B4
PJ14 ------> LTDC_B2
PI10 ------> LTDC_HSYNC
PK4 ------> LTDC_B5
PJ15 ------> LTDC_B3
PI9 ------> LTDC_VSYNC
PK1 ------> LTDC_G6
PK2 ------> LTDC_G7
PI15 ------> LTDC_R0
PJ11 ------> LTDC_G4
PK0 ------> LTDC_G5
PI14 ------> LTDC_CLK
PJ8 ------> LTDC_G1
PJ10 ------> LTDC_G3
PJ7 ------> LTDC_G0
PJ9 ------> LTDC_G2
PJ6 ------> LTDC_R7
PJ4 ------> LTDC_R5
PJ5 ------> LTDC_R6
PJ3 ------> LTDC_R4
PJ2 ------> LTDC_R3
PJ0 ------> LTDC_R1
PJ1 ------> LTDC_R2
*/
HAL_GPIO_DeInit(LCD_B0_GPIO_Port, LCD_B0_Pin);
HAL_GPIO_DeInit(GPIOJ, LCD_B1_Pin|LCD_B2_Pin|LCD_B3_Pin|LCD_G4_Pin
|LCD_G1_Pin|LCD_G3_Pin|LCD_G0_Pin|LCD_G2_Pin
|LCD_R7_Pin|LCD_R5_Pin|LCD_R6_Pin|LCD_R4_Pin
|LCD_R3_Pin|LCD_R1_Pin|LCD_R2_Pin);
HAL_GPIO_DeInit(GPIOK, LCD_DE_Pin|LCD_B7_Pin|LCD_B6_Pin|LCD_B5_Pin
|LCD_G6_Pin|LCD_G7_Pin|LCD_G5_Pin);
HAL_GPIO_DeInit(LCD_B4_GPIO_Port, LCD_B4_Pin);
HAL_GPIO_DeInit(GPIOI, LCD_HSYNC_Pin|LCD_VSYNC_Pin|LCD_R0_Pin|LCD_CLK_Pin);
}
/* USER CODE BEGIN LTDC_MspDeInit 1 */
/* USER CODE END LTDC_MspDeInit 1 */
}
