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enable Multimedia -> LTDC -> Display Type: RGB565 (16 bits)

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jazz committed 2026-09-09 13:32:30 -05:00
1 parent 08a6932c2a
commit c83854c6e4
6 files changed
+405 -50
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Core/Src/main.c
+111
View File
@@ -40,6 +40,7 @@
/* USER CODE END PM */
/* Private variables ---------------------------------------------------------*/
LTDC_HandleTypeDef hltdc;
/* USER CODE BEGIN PV */
@@ -47,6 +48,8 @@
/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
static void MX_GPIO_Init(void);
static void MX_LTDC_Init(void);
/* USER CODE BEGIN PFP */
/* USER CODE END PFP */
@@ -84,6 +87,8 @@ int main(void)
/* USER CODE END SysInit */
/* Initialize all configured peripherals */
MX_GPIO_Init();
MX_LTDC_Init();
/* USER CODE BEGIN 2 */
/* USER CODE END 2 */
@@ -145,6 +150,112 @@ void SystemClock_Config(void)
}
}
/**
* @brief LTDC Initialization Function
* @param None
* @retval None
*/
static void MX_LTDC_Init(void)
{
/* USER CODE BEGIN LTDC_Init 0 */
/* USER CODE END LTDC_Init 0 */
LTDC_LayerCfgTypeDef pLayerCfg = {0};
LTDC_LayerCfgTypeDef pLayerCfg1 = {0};
/* USER CODE BEGIN LTDC_Init 1 */
/* USER CODE END LTDC_Init 1 */
hltdc.Instance = LTDC;
hltdc.Init.HSPolarity = LTDC_HSPOLARITY_AL;
hltdc.Init.VSPolarity = LTDC_VSPOLARITY_AL;
hltdc.Init.DEPolarity = LTDC_DEPOLARITY_AL;
hltdc.Init.PCPolarity = LTDC_PCPOLARITY_IPC;
hltdc.Init.HorizontalSync = 7;
hltdc.Init.VerticalSync = 3;
hltdc.Init.AccumulatedHBP = 14;
hltdc.Init.AccumulatedVBP = 5;
hltdc.Init.AccumulatedActiveW = 654;
hltdc.Init.AccumulatedActiveH = 485;
hltdc.Init.TotalWidth = 660;
hltdc.Init.TotalHeigh = 487;
hltdc.Init.Backcolor.Blue = 0;
hltdc.Init.Backcolor.Green = 0;
hltdc.Init.Backcolor.Red = 0;
if (HAL_LTDC_Init(&hltdc) != HAL_OK)
{
Error_Handler();
}
pLayerCfg.WindowX0 = 0;
pLayerCfg.WindowX1 = 0;
pLayerCfg.WindowY0 = 0;
pLayerCfg.WindowY1 = 0;
pLayerCfg.PixelFormat = LTDC_PIXEL_FORMAT_ARGB8888;
pLayerCfg.Alpha = 0;
pLayerCfg.Alpha0 = 0;
pLayerCfg.BlendingFactor1 = LTDC_BLENDING_FACTOR1_CA;
pLayerCfg.BlendingFactor2 = LTDC_BLENDING_FACTOR2_CA;
pLayerCfg.FBStartAdress = 0;
pLayerCfg.ImageWidth = 0;
pLayerCfg.ImageHeight = 0;
pLayerCfg.Backcolor.Blue = 0;
pLayerCfg.Backcolor.Green = 0;
pLayerCfg.Backcolor.Red = 0;
if (HAL_LTDC_ConfigLayer(&hltdc, &pLayerCfg, 0) != HAL_OK)
{
Error_Handler();
}
pLayerCfg1.WindowX0 = 0;
pLayerCfg1.WindowX1 = 0;
pLayerCfg1.WindowY0 = 0;
pLayerCfg1.WindowY1 = 0;
pLayerCfg1.PixelFormat = LTDC_PIXEL_FORMAT_ARGB8888;
pLayerCfg1.Alpha = 0;
pLayerCfg1.Alpha0 = 0;
pLayerCfg1.BlendingFactor1 = LTDC_BLENDING_FACTOR1_CA;
pLayerCfg1.BlendingFactor2 = LTDC_BLENDING_FACTOR2_CA;
pLayerCfg1.FBStartAdress = 0;
pLayerCfg1.ImageWidth = 0;
pLayerCfg1.ImageHeight = 0;
pLayerCfg1.Backcolor.Blue = 0;
pLayerCfg1.Backcolor.Green = 0;
pLayerCfg1.Backcolor.Red = 0;
if (HAL_LTDC_ConfigLayer(&hltdc, &pLayerCfg1, 1) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN LTDC_Init 2 */
/* USER CODE END LTDC_Init 2 */
}
/**
* @brief GPIO Initialization Function
* @param None
* @retval None
*/
static void MX_GPIO_Init(void)
{
/* USER CODE BEGIN MX_GPIO_Init_1 */
/* USER CODE END MX_GPIO_Init_1 */
/* GPIO Ports Clock Enable */
__HAL_RCC_GPIOF_CLK_ENABLE();
__HAL_RCC_GPIOA_CLK_ENABLE();
__HAL_RCC_GPIOB_CLK_ENABLE();
__HAL_RCC_GPIOE_CLK_ENABLE();
__HAL_RCC_GPIOD_CLK_ENABLE();
__HAL_RCC_GPIOC_CLK_ENABLE();
/* USER CODE BEGIN MX_GPIO_Init_2 */
/* USER CODE END MX_GPIO_Init_2 */
}
/* USER CODE BEGIN 4 */
/* USER CODE END 4 */
Core/Src/stm32f4xx_hal_msp.c
+175
View File
@@ -78,6 +78,181 @@ void HAL_MspInit(void)
/* USER CODE END MspInit 1 */
}
/**
* @brief LTDC MSP Initialization
* This function configures the hardware resources used in this example
* @param hltdc: LTDC handle pointer
* @retval None
*/
void HAL_LTDC_MspInit(LTDC_HandleTypeDef* hltdc)
{
GPIO_InitTypeDef GPIO_InitStruct = {0};
RCC_PeriphCLKInitTypeDef PeriphClkInitStruct = {0};
if(hltdc->Instance==LTDC)
{
/* USER CODE BEGIN LTDC_MspInit 0 */
/* USER CODE END LTDC_MspInit 0 */
/** Initializes the peripherals clock
*/
PeriphClkInitStruct.PeriphClockSelection = RCC_PERIPHCLK_LTDC;
PeriphClkInitStruct.PLLSAI.PLLSAIN = 50;
PeriphClkInitStruct.PLLSAI.PLLSAIR = 2;
PeriphClkInitStruct.PLLSAIDivR = RCC_PLLSAIDIVR_2;
if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInitStruct) != HAL_OK)
{
Error_Handler();
}
/* Peripheral clock enable */
__HAL_RCC_LTDC_CLK_ENABLE();
__HAL_RCC_GPIOF_CLK_ENABLE();
__HAL_RCC_GPIOA_CLK_ENABLE();
__HAL_RCC_GPIOB_CLK_ENABLE();
__HAL_RCC_GPIOE_CLK_ENABLE();
__HAL_RCC_GPIOD_CLK_ENABLE();
__HAL_RCC_GPIOC_CLK_ENABLE();
/**LTDC GPIO Configuration
PF10 ------> LTDC_DE
PA3 ------> LTDC_B5
PA4 ------> LTDC_VSYNC
PA6 ------> LTDC_G2
PB0 ------> LTDC_R3
PB1 ------> LTDC_R6
PE11 ------> LTDC_G3
PE12 ------> LTDC_B4
PE14 ------> LTDC_CLK
PE15 ------> LTDC_R7
PB10 ------> LTDC_G4
PB11 ------> LTDC_G5
PD10 ------> LTDC_B3
PC6 ------> LTDC_HSYNC
PC7 ------> LTDC_G6
PA11 ------> LTDC_R4
PA12 ------> LTDC_R5
PD3 ------> LTDC_G7
PB8 ------> LTDC_B6
PB9 ------> LTDC_B7
*/
GPIO_InitStruct.Pin = GPIO_PIN_10;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
GPIO_InitStruct.Alternate = GPIO_AF14_LTDC;
HAL_GPIO_Init(GPIOF, &GPIO_InitStruct);
GPIO_InitStruct.Pin = GPIO_PIN_3|GPIO_PIN_4|GPIO_PIN_6|GPIO_PIN_11
|GPIO_PIN_12;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
GPIO_InitStruct.Alternate = GPIO_AF14_LTDC;
HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
GPIO_InitStruct.Pin = GPIO_PIN_0|GPIO_PIN_1;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
GPIO_InitStruct.Alternate = GPIO_AF9_LTDC;
HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
GPIO_InitStruct.Pin = GPIO_PIN_11|GPIO_PIN_12|GPIO_PIN_14|GPIO_PIN_15;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
GPIO_InitStruct.Alternate = GPIO_AF14_LTDC;
HAL_GPIO_Init(GPIOE, &GPIO_InitStruct);
GPIO_InitStruct.Pin = GPIO_PIN_10|GPIO_PIN_11|GPIO_PIN_8|GPIO_PIN_9;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
GPIO_InitStruct.Alternate = GPIO_AF14_LTDC;
HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
GPIO_InitStruct.Pin = GPIO_PIN_10|GPIO_PIN_3;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
GPIO_InitStruct.Alternate = GPIO_AF14_LTDC;
HAL_GPIO_Init(GPIOD, &GPIO_InitStruct);
GPIO_InitStruct.Pin = GPIO_PIN_6|GPIO_PIN_7;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
GPIO_InitStruct.Alternate = GPIO_AF14_LTDC;
HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);
/* USER CODE BEGIN LTDC_MspInit 1 */
/* USER CODE END LTDC_MspInit 1 */
}
}
/**
* @brief LTDC MSP De-Initialization
* This function freeze the hardware resources used in this example
* @param hltdc: LTDC handle pointer
* @retval None
*/
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
PF10 ------> LTDC_DE
PA3 ------> LTDC_B5
PA4 ------> LTDC_VSYNC
PA6 ------> LTDC_G2
PB0 ------> LTDC_R3
PB1 ------> LTDC_R6
PE11 ------> LTDC_G3
PE12 ------> LTDC_B4
PE14 ------> LTDC_CLK
PE15 ------> LTDC_R7
PB10 ------> LTDC_G4
PB11 ------> LTDC_G5
PD10 ------> LTDC_B3
PC6 ------> LTDC_HSYNC
PC7 ------> LTDC_G6
PA11 ------> LTDC_R4
PA12 ------> LTDC_R5
PD3 ------> LTDC_G7
PB8 ------> LTDC_B6
PB9 ------> LTDC_B7
*/
HAL_GPIO_DeInit(GPIOF, GPIO_PIN_10);
HAL_GPIO_DeInit(GPIOA, GPIO_PIN_3|GPIO_PIN_4|GPIO_PIN_6|GPIO_PIN_11
|GPIO_PIN_12);
HAL_GPIO_DeInit(GPIOB, GPIO_PIN_0|GPIO_PIN_1|GPIO_PIN_10|GPIO_PIN_11
|GPIO_PIN_8|GPIO_PIN_9);
HAL_GPIO_DeInit(GPIOE, GPIO_PIN_11|GPIO_PIN_12|GPIO_PIN_14|GPIO_PIN_15);
HAL_GPIO_DeInit(GPIOD, GPIO_PIN_10|GPIO_PIN_3);
HAL_GPIO_DeInit(GPIOC, GPIO_PIN_6|GPIO_PIN_7);
/* USER CODE BEGIN LTDC_MspDeInit 1 */
/* USER CODE END LTDC_MspDeInit 1 */
}
}
/* USER CODE BEGIN 1 */
/* USER CODE END 1 */