stm32 ltd完整代码

抱歉，STM32 LTDC的完整代码取决于具体的应用场景和硬件配置，无法提供一个通用的完整代码。不过，以下是一个基本的代码框架，可以帮助您开始使用STM32 LTDC：

#include "stm32f4xx.h"
#include "stm32f429i_discovery.h"

// 定义LCD分辨率
#define LCD_WIDTH  480
#define LCD_HEIGHT 272

// 定义LTDC配置参数
static LTDC_HandleTypeDef hltdc;
static uint32_t LcdLayerCfg;

// 初始化LTDC
void LTDC_Init(void) {
  // 启用LTDC时钟
  __HAL_RCC_LTDC_CLK_ENABLE();

  // 配置LTDC时序和时钟参数
  hltdc.Init.HorizontalSync = LCD_HSYNC - 1;
  hltdc.Init.VerticalSync = LCD_VSYNC - 1;
  hltdc.Init.AccumulatedHBP = LCD_HSYNC + LCD_HBP - 1;
  hltdc.Init.AccumulatedVBP = LCD_VSYNC + LCD_VBP - 1;
  hltdc.Init.AccumulatedActiveW = LCD_HSYNC + LCD_WIDTH + LCD_HBP - 1;
  hltdc.Init.AccumulatedActiveH = LCD_VSYNC + LCD_HEIGHT + LCD_VBP - 1;
  hltdc.Init.TotalWidth = LCD_HSYNC + LCD_WIDTH + LCD_HBP + LCD_HFP - 1;
  hltdc.Init.TotalHeigh = LCD_VSYNC + LCD_HEIGHT + LCD_VBP + LCD_VFP - 1;

  // 配置LTDC时钟参数
  hltdc.Init.ClockSuorce = LTDC_CLOCK_SYNC;
  hltdc.Init.ClockPolarity = LTDC_CLK_POLARITY_FALLING;
  hltdc.Init.ClockDiv = 5;
  hltdc.Init.HSPolarity = LTDC_HSPOLARITY_AL;
  hltdc.Init.VSPolarity = LTDC_VSPOLARITY_AL;
  hltdc.Init.DEPolarity = LTDC_DEPOLARITY_AL;
  hltdc.Init.PCPolarity = LTDC_PCPOLARITY_IPC;

  // 初始化LTDC
  hltdc.Instance = LTDC;
  HAL_LTDC_Init(&hltdc);

  // 配置LTDC层参数
  LTDC_LayerCfgTypeDef LayerCfg;
  LayerCfg.WindowX0 = 0;
  LayerCfg.WindowX1 = LCD_WIDTH;
  LayerCfg.WindowY0 = 0;
  LayerCfg.WindowY1 = LCD_HEIGHT;
  LayerCfg.PixelFormat = LTDC_PIXEL_FORMAT_ARGB8888;
  LayerCfg.Alpha = 255;
  LayerCfg.Alpha0 = 0;
  LayerCfg.BlendingFactor1 = LTDC_BLENDING_FACTOR1_CA;
  LayerCfg.BlendingFactor2 = LTDC_BLENDING_FACTOR2_CA;
  LayerCfg.FBStartAdress = LCD_FRAME_BUFFER;
  LayerCfg.ImageWidth = LCD_WIDTH;
  LayerCfg.ImageHeight = LCD_HEIGHT;
  LayerCfg.Backcolor.Red = 0;
  LayerCfg.Backcolor.Green = 0;
  LayerCfg.Backcolor.Blue = 0;

  // 配置LTDC Layer
  HAL_LTDC_ConfigLayer(&hltdc, &LayerCfg, 0);

  // 使能LTDC
  HAL_LTDC_Enable(&hltdc);
}

// 主函数
int main(void) {
  // 初始化LTDC
  LTDC_Init();

  // 循环
  while(1) {
    // 显示图像
    // ...
  }
}

以上代码仅提供了LTDC的基本配置，具体的图像显示需要根据具体应用场景进行编写。另外，还需要定义LCD分辨率、LTDC层参数等相关参数。