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Lizhenrong
2026-04-06 19:02:09 +08:00
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FW/Core/Src/ltdc.c Normal file
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/* USER CODE BEGIN Header */
/**
******************************************************************************
* @file ltdc.c
* @brief This file provides code for the configuration
* of the LTDC instances.
******************************************************************************
* @attention
*
* Copyright (c) 2023 STMicroelectronics.
* All rights reserved.
*
* This software is licensed under terms that can be found in the LICENSE file
* in the root directory of this software component.
* If no LICENSE file comes with this software, it is provided AS-IS.
*
******************************************************************************
*/
/* USER CODE END Header */
/* Includes ------------------------------------------------------------------*/
#include "ltdc.h"
/* USER CODE BEGIN 0 */
#include "stm32h7xx_hal_ltdc.h"
/* USER CODE END 0 */
LTDC_HandleTypeDef hltdc;
/* LTDC init function */
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 = 0;
hltdc.Init.VerticalSync = 0;
hltdc.Init.AccumulatedHBP = 46;
hltdc.Init.AccumulatedVBP = 23;
hltdc.Init.AccumulatedActiveW = 846;
hltdc.Init.AccumulatedActiveH = 503;
hltdc.Init.TotalWidth = 1056;
hltdc.Init.TotalHeigh = 525;
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 = 800;
pLayerCfg.WindowY0 = 0;
pLayerCfg.WindowY1 = 480;
pLayerCfg.PixelFormat = LTDC_PIXEL_FORMAT_ARGB8888;
pLayerCfg.Alpha = 255;
pLayerCfg.Alpha0 = 0;
pLayerCfg.BlendingFactor1 = LTDC_BLENDING_FACTOR1_CA;
pLayerCfg.BlendingFactor2 = LTDC_BLENDING_FACTOR2_CA;
pLayerCfg.FBStartAdress = 0xC0000000;
pLayerCfg.ImageWidth = 800;
pLayerCfg.ImageHeight = 480;
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 = 800;
pLayerCfg1.WindowY0 = 0;
pLayerCfg1.WindowY1 = 480;
pLayerCfg1.PixelFormat = LTDC_PIXEL_FORMAT_ARGB8888;
pLayerCfg1.Alpha = 255;
pLayerCfg1.Alpha0 = 0;
pLayerCfg1.BlendingFactor1 = LTDC_BLENDING_FACTOR1_PAxCA;
pLayerCfg1.BlendingFactor2 = LTDC_BLENDING_FACTOR2_PAxCA;
pLayerCfg1.FBStartAdress = 0xC0177000;
pLayerCfg1.ImageWidth = 800;
pLayerCfg1.ImageHeight = 480;
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 */
//HAL_LTDC_ProgramLineEvent(&hltdc,0);
//__HAL_LTDC_ENABLE_IT(&hltdc, LTDC_IT_LI);
/* USER CODE END LTDC_Init 2 */
}
void HAL_LTDC_MspInit(LTDC_HandleTypeDef* ltdcHandle)
{
GPIO_InitTypeDef GPIO_InitStruct = {0};
RCC_PeriphCLKInitTypeDef PeriphClkInitStruct = {0};
if(ltdcHandle->Instance==LTDC)
{
/* USER CODE BEGIN LTDC_MspInit 0 */
/* USER CODE END LTDC_MspInit 0 */
/** Initializes the peripherals clock
*/
PeriphClkInitStruct.PeriphClockSelection = RCC_PERIPHCLK_LTDC;
PeriphClkInitStruct.PLL3.PLL3M = 1;
PeriphClkInitStruct.PLL3.PLL3N = 18;
PeriphClkInitStruct.PLL3.PLL3P = 2;
PeriphClkInitStruct.PLL3.PLL3Q = 2;
PeriphClkInitStruct.PLL3.PLL3R = 5;
PeriphClkInitStruct.PLL3.PLL3RGE = RCC_PLL3VCIRANGE_3;
PeriphClkInitStruct.PLL3.PLL3VCOSEL = RCC_PLL3VCOMEDIUM;
PeriphClkInitStruct.PLL3.PLL3FRACN = 6144;
if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInitStruct) != HAL_OK)
{
Error_Handler();
}
/* LTDC clock enable */
__HAL_RCC_LTDC_CLK_ENABLE();
__HAL_RCC_GPIOE_CLK_ENABLE();
__HAL_RCC_GPIOI_CLK_ENABLE();
__HAL_RCC_GPIOF_CLK_ENABLE();
__HAL_RCC_GPIOC_CLK_ENABLE();
__HAL_RCC_GPIOA_CLK_ENABLE();
__HAL_RCC_GPIOH_CLK_ENABLE();
__HAL_RCC_GPIOB_CLK_ENABLE();
__HAL_RCC_GPIOG_CLK_ENABLE();
__HAL_RCC_GPIOD_CLK_ENABLE();
/**LTDC GPIO Configuration
PE4 ------> LTDC_B0
PE5 ------> LTDC_G0
PE6 ------> LTDC_G1
PI11 ------> LTDC_G6
PF10 ------> LTDC_DE
PC0 ------> LTDC_R5
PA1 ------> LTDC_R2
PA2 ------> LTDC_R1
PH2 ------> LTDC_R0
PH4 ------> LTDC_G5
PA3 ------> LTDC_B5
PA4 ------> LTDC_VSYNC
PA5 ------> LTDC_R4
PA6 ------> LTDC_G2
PB0 ------> LTDC_R3
PB1 ------> LTDC_R6
PB10 ------> LTDC_G4
PG6 ------> LTDC_R7
PG7 ------> LTDC_CLK
PC6 ------> LTDC_HSYNC
PC9 ------> LTDC_B2
PA8 ------> LTDC_B3
PA10 ------> LTDC_B4
PD3 ------> LTDC_G7
PG10 ------> LTDC_G3
PG12 ------> LTDC_B1
PB8 ------> LTDC_B6
PB9 ------> LTDC_B7
*/
GPIO_InitStruct.Pin = GPIO_PIN_4|GPIO_PIN_5|GPIO_PIN_6;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
GPIO_InitStruct.Alternate = GPIO_AF14_LTDC;
HAL_GPIO_Init(GPIOE, &GPIO_InitStruct);
GPIO_InitStruct.Pin = GPIO_PIN_11;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
GPIO_InitStruct.Alternate = GPIO_AF9_LTDC;
HAL_GPIO_Init(GPIOI, &GPIO_InitStruct);
GPIO_InitStruct.Pin = GPIO_PIN_10;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
GPIO_InitStruct.Alternate = GPIO_AF14_LTDC;
HAL_GPIO_Init(GPIOF, &GPIO_InitStruct);
GPIO_InitStruct.Pin = GPIO_PIN_0|GPIO_PIN_6|GPIO_PIN_9;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
GPIO_InitStruct.Alternate = GPIO_AF14_LTDC;
HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);
GPIO_InitStruct.Pin = GPIO_PIN_1|GPIO_PIN_2|GPIO_PIN_3|GPIO_PIN_4
|GPIO_PIN_5|GPIO_PIN_6;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
GPIO_InitStruct.Alternate = GPIO_AF14_LTDC;
HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
GPIO_InitStruct.Pin = GPIO_PIN_2;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
GPIO_InitStruct.Alternate = GPIO_AF14_LTDC;
HAL_GPIO_Init(GPIOH, &GPIO_InitStruct);
GPIO_InitStruct.Pin = GPIO_PIN_4;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
GPIO_InitStruct.Alternate = GPIO_AF9_LTDC;
HAL_GPIO_Init(GPIOH, &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_VERY_HIGH;
GPIO_InitStruct.Alternate = GPIO_AF9_LTDC;
HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
GPIO_InitStruct.Pin = GPIO_PIN_10|GPIO_PIN_8|GPIO_PIN_9;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
GPIO_InitStruct.Alternate = GPIO_AF14_LTDC;
HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
GPIO_InitStruct.Pin = GPIO_PIN_6|GPIO_PIN_7|GPIO_PIN_12;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
GPIO_InitStruct.Alternate = GPIO_AF14_LTDC;
HAL_GPIO_Init(GPIOG, &GPIO_InitStruct);
GPIO_InitStruct.Pin = GPIO_PIN_8;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
GPIO_InitStruct.Alternate = GPIO_AF13_LTDC;
HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
GPIO_InitStruct.Pin = GPIO_PIN_10;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
GPIO_InitStruct.Alternate = GPIO_AF12_LTDC;
HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
GPIO_InitStruct.Pin = GPIO_PIN_3;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
GPIO_InitStruct.Alternate = GPIO_AF14_LTDC;
HAL_GPIO_Init(GPIOD, &GPIO_InitStruct);
GPIO_InitStruct.Pin = GPIO_PIN_10;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
GPIO_InitStruct.Alternate = GPIO_AF9_LTDC;
HAL_GPIO_Init(GPIOG, &GPIO_InitStruct);
HAL_I2CEx_EnableFastModePlus(SYSCFG_PMCR_I2C_PB8_FMP);
HAL_I2CEx_EnableFastModePlus(SYSCFG_PMCR_I2C_PB9_FMP);
/* LTDC interrupt Init */
HAL_NVIC_SetPriority(LTDC_IRQn, 0, 0);
HAL_NVIC_EnableIRQ(LTDC_IRQn);
/* USER CODE BEGIN LTDC_MspInit 1 */
/* USER CODE END LTDC_MspInit 1 */
}
}
void HAL_LTDC_MspDeInit(LTDC_HandleTypeDef* ltdcHandle)
{
if(ltdcHandle->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
PE5 ------> LTDC_G0
PE6 ------> LTDC_G1
PI11 ------> LTDC_G6
PF10 ------> LTDC_DE
PC0 ------> LTDC_R5
PA1 ------> LTDC_R2
PA2 ------> LTDC_R1
PH2 ------> LTDC_R0
PH4 ------> LTDC_G5
PA3 ------> LTDC_B5
PA4 ------> LTDC_VSYNC
PA5 ------> LTDC_R4
PA6 ------> LTDC_G2
PB0 ------> LTDC_R3
PB1 ------> LTDC_R6
PB10 ------> LTDC_G4
PG6 ------> LTDC_R7
PG7 ------> LTDC_CLK
PC6 ------> LTDC_HSYNC
PC9 ------> LTDC_B2
PA8 ------> LTDC_B3
PA10 ------> LTDC_B4
PD3 ------> LTDC_G7
PG10 ------> LTDC_G3
PG12 ------> LTDC_B1
PB8 ------> LTDC_B6
PB9 ------> LTDC_B7
*/
HAL_GPIO_DeInit(GPIOE, GPIO_PIN_4|GPIO_PIN_5|GPIO_PIN_6);
HAL_GPIO_DeInit(GPIOI, GPIO_PIN_11);
HAL_GPIO_DeInit(GPIOF, GPIO_PIN_10);
HAL_GPIO_DeInit(GPIOC, GPIO_PIN_0|GPIO_PIN_6|GPIO_PIN_9);
HAL_GPIO_DeInit(GPIOA, GPIO_PIN_1|GPIO_PIN_2|GPIO_PIN_3|GPIO_PIN_4
|GPIO_PIN_5|GPIO_PIN_6|GPIO_PIN_8|GPIO_PIN_10);
HAL_GPIO_DeInit(GPIOH, GPIO_PIN_2|GPIO_PIN_4);
HAL_GPIO_DeInit(GPIOB, GPIO_PIN_0|GPIO_PIN_1|GPIO_PIN_10|GPIO_PIN_8
|GPIO_PIN_9);
HAL_GPIO_DeInit(GPIOG, GPIO_PIN_6|GPIO_PIN_7|GPIO_PIN_10|GPIO_PIN_12);
HAL_GPIO_DeInit(GPIOD, GPIO_PIN_3);
/* LTDC interrupt Deinit */
HAL_NVIC_DisableIRQ(LTDC_IRQn);
/* USER CODE BEGIN LTDC_MspDeInit 1 */
/* USER CODE END LTDC_MspDeInit 1 */
}
}
/* USER CODE BEGIN 1 */
/* USER CODE END 1 */