使用STM32F429驱动RGB裸屏移植EMWIN

tony129 · 发表于 2015-11-12 10:21:01

我用stm32f429自带的LTDC驱动7寸 RGB裸屏，没有使用驱动IC，参考了stm32f429discovery 的demo例程移植，单独LCD显示字符等一些东西的时候似乎没有什么问题。移植完emWIN后，用GUI显示一些字符，图片什么的也都没有问题，但是在演示GUI 那个DEMO的时候每个DEMO里面的画面都被分割成一条一条，在做ICONVIEW和DIALOG的时候也是这样，但是显示图片，图形时就不会，这是什么问题？

tony129 · 发表于 2015-11-12 10:21:02

XUZJWWSZ 发表于 2017-1-21 12:21
我也遇到了相同的问题，请问楼主解决了吗

解决了啊，你可以参考下这个
http://download.eeworld.com.cn/detail/scky333/559919

tony129 · 发表于 2015-11-12 10:23:20

手机拍的图片有点大了见谅，最后一张是单独显示背景图片正常，创建一个ICONVIEW工具后画面就变成一条条的了。

zuozhongkai · 发表于 2015-11-12 10:39:33

感觉问题应该和SDRAM有关，包括硬件上或者软件上的，把屏的时钟降低试试

tony129 · 发表于 2015-11-12 16:36:22

左哥手真快，SDRAM我检查过了，好像没什么问题，我不演示DEMO或不做ICONVIEW，显示图片，图形化也没什么问题，我怕是我移植的问题，stm32f429 EMWIN的移植跟我们教程不一样，GUIDRV这个文件 ST官方做了比较大的修改，我是从这上面改过来的，网上的资料很少，而且都没有驱动裸屏的。屏的时钟（PLLSAI）放慢后整个画面会抖动。
LCD初始化部分如下：

void LCD_Init(void)
{
LTDC_InitTypeDef LTDC_InitStruct;

/* Configure the LCD Control pins ------------------------------------------*/
LCD_CtrlLinesConfig();
LCD_ChipSelect(DISABLE);
LCD_ChipSelect(ENABLE);

// /* Configure the LCD_SPI interface -----------------------------------------*/
// LCD_SPIConfig();
//
// /* Power on the LCD --------------------------------------------------------*/
// LCD_PowerOn();

/* Enable the LTDC Clock */
RCC_APB2PeriphClockCmd(RCC_APB2Periph_LTDC, ENABLE);

/* Enable the DMA2D Clock */
RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_DMA2D, ENABLE);

/* Configure the LCD Control pins */
LCD_AF_GPIOConfig();

/* Configure the FMC Parallel interface : SDRAM is used as Frame Buffer for LCD */
SDRAM_Init();

/* LTDC Configuration *********************************************************/
/* Polarity configuration */
/* Initialize the horizontal synchronization polarity as active low */
LTDC_InitStruct.LTDC_HSPolarity = LTDC_HSPolarity_AL;
/* Initialize the vertical synchronization polarity as active low */
LTDC_InitStruct.LTDC_VSPolarity = LTDC_VSPolarity_AL;
/* Initialize the data enable polarity as active low */
LTDC_InitStruct.LTDC_DEPolarity = LTDC_DEPolarity_AL;
/* Initialize the pixel clock polarity as input pixel clock */
LTDC_InitStruct.LTDC_PCPolarity = LTDC_PCPolarity_IPC;

/* Configure R,G,B component values for LCD background color */
LTDC_InitStruct.LTDC_BackgroundRedValue = 0;
LTDC_InitStruct.LTDC_BackgroundGreenValue = 0;
LTDC_InitStruct.LTDC_BackgroundBlueValue = 0;

/* Configure PLLSAI prescalers for LCD */
/* Enable Pixel Clock */
/* PLLSAI_VCO Input = HSE_VALUE/PLL_M = 1 Mhz */
/* PLLSAI_VCO Output = PLLSAI_VCO Input * PLLSAI_N = 192 Mhz */
/* PLLLCDCLK = PLLSAI_VCO Output/PLLSAI_R = 192/4 = 48 Mhz */
/* LTDC clock frequency = PLLLCDCLK / RCC_PLLSAIDivR = 48/2 = 24 Mhz */
RCC_PLLSAIConfig(192, 7, 3);
RCC_LTDCCLKDivConfig(RCC_PLLSAIDivR_Div2);

/* Enable PLLSAI Clock */
RCC_PLLSAICmd(ENABLE);
/* Wait for PLLSAI activation */
while(RCC_GetFlagStatus(RCC_FLAG_PLLSAIRDY) == RESET)
{
}

/* Timing configuration */
/* Configure horizontal synchronization width */
LTDC_InitStruct.LTDC_HorizontalSync = 9;
/* Configure vertical synchronization height */
LTDC_InitStruct.LTDC_VerticalSync = 1;
/* Configure accumulated horizontal back porch */
LTDC_InitStruct.LTDC_AccumulatedHBP = 29;
/* Configure accumulated vertical back porch */
LTDC_InitStruct.LTDC_AccumulatedVBP = 3;
/* Configure accumulated active width */
LTDC_InitStruct.LTDC_AccumulatedActiveW = 29 + LCD_PIXEL_WIDTH;
/* Configure accumulated active height */
LTDC_InitStruct.LTDC_AccumulatedActiveH =3 + LCD_PIXEL_HEIGHT;
/* Configure total width */
LTDC_InitStruct.LTDC_TotalWidth =29 + LCD_PIXEL_WIDTH+50;
/* Configure total height */
LTDC_InitStruct.LTDC_TotalHeigh =3 + LCD_PIXEL_HEIGHT;

LTDC_Init(&LTDC_InitStruct);
}

/**
* @brief Initializes the LCD Layers.
* @param None
* @retval None
*/
void LCD_LayerInit(void)
{
LTDC_Layer_InitTypeDef LTDC_Layer_InitStruct;

/* Windowing configuration */
/* In this case all the active display area is used to display a picture then :
Horizontal start = horizontal synchronization + Horizontal back porch = 30
Horizontal stop = Horizontal start + window width -1 = 30 + 240 -1
Vertical start = vertical synchronization + vertical back porch = 4
Vertical stop = Vertical start + window height -1 = 4 + 320 -1 */
LTDC_Layer_InitStruct.LTDC_HorizontalStart = 30;
LTDC_Layer_InitStruct.LTDC_HorizontalStop = (LCD_PIXEL_WIDTH + 30 - 1);
LTDC_Layer_InitStruct.LTDC_VerticalStart = 4;
LTDC_Layer_InitStruct.LTDC_VerticalStop = (LCD_PIXEL_HEIGHT + 4 - 1);

/* Pixel Format configuration*/
LTDC_Layer_InitStruct.LTDC_PixelFormat = LTDC_Pixelformat_RGB565;
/* Alpha constant (255 totally opaque) */
LTDC_Layer_InitStruct.LTDC_ConstantAlpha = 255;
/* Default Color configuration (configure A,R,G,B component values) */
LTDC_Layer_InitStruct.LTDC_DefaultColorBlue = 0;
LTDC_Layer_InitStruct.LTDC_DefaultColorGreen = 0;
LTDC_Layer_InitStruct.LTDC_DefaultColorRed = 0;
LTDC_Layer_InitStruct.LTDC_DefaultColorAlpha = 0;
/* Configure blending factors */
LTDC_Layer_InitStruct.LTDC_BlendingFactor_1 = LTDC_BlendingFactor1_CA;
LTDC_Layer_InitStruct.LTDC_BlendingFactor_2 = LTDC_BlendingFactor2_CA;

/* the length of one line of pixels in bytes + 3 then :
Line Lenth = Active high width x number of bytes per pixel + 3
Active high width = LCD_PIXEL_WIDTH
number of bytes per pixel = 2 (pixel_format : RGB565)
*/
LTDC_Layer_InitStruct.LTDC_CFBLineLength = ((LCD_PIXEL_WIDTH * 2) + 3);
/* the pitch is the increment from the start of one line of pixels to the
start of the next line in bytes, then :
Pitch = Active high width x number of bytes per pixel */
LTDC_Layer_InitStruct.LTDC_CFBPitch = (LCD_PIXEL_WIDTH * 2);

/* Configure the number of lines */
LTDC_Layer_InitStruct.LTDC_CFBLineNumber = LCD_PIXEL_HEIGHT;

/* Start Address configuration : the LCD Frame buffer is defined on SDRAM */
LTDC_Layer_InitStruct.LTDC_CFBStartAdress = LCD_FRAME_BUFFER;

/* Initialize LTDC layer 1 */
LTDC_LayerInit(LTDC_Layer1, &LTDC_Layer_InitStruct);

/* Configure Layer2 */
/* Start Address configuration : the LCD Frame buffer is defined on SDRAM w/ Offset */
LTDC_Layer_InitStruct.LTDC_CFBStartAdress = LCD_FRAME_BUFFER + BUFFER_OFFSET;

/* Configure blending factors */
LTDC_Layer_InitStruct.LTDC_BlendingFactor_1 = LTDC_BlendingFactor1_PAxCA;
LTDC_Layer_InitStruct.LTDC_BlendingFactor_2 = LTDC_BlendingFactor2_PAxCA;

/* Initialize LTDC layer 2 */
LTDC_LayerInit(LTDC_Layer2, &LTDC_Layer_InitStruct);

/* LTDC configuration reload */
LTDC_ReloadConfig(LTDC_IMReload);

/* Enable foreground & background Layers */
LTDC_LayerCmd(LTDC_Layer1, ENABLE);
LTDC_LayerCmd(LTDC_Layer2, ENABLE);

/* LTDC configuration reload */
LTDC_ReloadConfig(LTDC_IMReload);

/* Set default font */
LCD_SetFont(&LCD_DEFAULT_FONT);

/* dithering activation */
LTDC_DitherCmd(ENABLE);
}

tony129 · 发表于 2015-11-12 19:08:42

没人来瞧瞧看看吗？这颗IC用的人果然少啊

夏与冬之中 · 发表于 2015-11-12 20:50:48

回复【5楼】tony129:
---------------------------------
给个我用的代码你自己对照吧。。。。
void LCD_AF_GPIOConfig(void)
{
  GPIO_InitTypeDef GPIO_InitStructure;
  /*
   ****************************************************************************
   *R0 -->

H2 | G0 -->

E5 | B0 -->

E4 | VSYNC -->

I10
*R1 -->

H3 | G1 -->

E6 | B1 -->

G12 | HSYNC -->

I9
*R2 -->

H8 | G2 -->

H13 | B2 --> PG10 | DE    --> PF10
   *R3 -->  PH9 | G3 --> PH14 | B3 --> PG11 | CLK   -->  PG7
   *R4 --> PH10 | G4 --> PH15 | B4 -->  PI4 | BL_EN --> PD13
   *R5 --> PH11 | G5 -->  PI0 | B5 -->  PI5 |
   *R6 --> PH12 | G6 -->  PI1 | B6 -->  PI6 | G3->PH14/PE11
   *R7 -->  PG6 | G7 -->  PI2 | B7 -->  PI7 | B3->PG11/PD10     B2->PD6
   ****************************************************************************
   */
  RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOD | RCC_AHB1Periph_GPIOE | RCC_AHB1Periph_GPIOF | RCC_AHB1Periph_GPIOG
                         | RCC_AHB1Periph_GPIOH | RCC_AHB1Periph_GPIOI, ENABLE);

  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;
  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
  GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
  GPIO_InitStructure.GPIO_PuPd  = GPIO_PuPd_NOPULL;

  GPIO_PinAFConfig(GPIOG, GPIO_PinSource4, GPIO_AF_LTDC);
  GPIO_PinAFConfig(GPIOG, GPIO_PinSource5, GPIO_AF_LTDC);
  GPIO_PinAFConfig(GPIOG, GPIO_PinSource6, GPIO_AF_LTDC);
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_4 | GPIO_Pin_5 | GPIO_Pin_6 ;
  GPIO_Init(GPIOE, &GPIO_InitStructure);

  GPIO_PinAFConfig(GPIOF, GPIO_PinSource10, GPIO_AF_LTDC);
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10;
  GPIO_Init(GPIOF, &GPIO_InitStructure);

  GPIO_PinAFConfig(GPIOG, GPIO_PinSource6, GPIO_AF_LTDC);
  GPIO_PinAFConfig(GPIOG, GPIO_PinSource7, GPIO_AF_LTDC);
  GPIO_PinAFConfig(GPIOG, GPIO_PinSource10, GPIO_AF_LTDC);
  GPIO_PinAFConfig(GPIOG, GPIO_PinSource11, GPIO_AF_LTDC);
  GPIO_PinAFConfig(GPIOG, GPIO_PinSource12, GPIO_AF_LTDC);
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6 | GPIO_Pin_7 |
                 GPIO_Pin_10 | GPIO_Pin_11 | GPIO_Pin_12;
  GPIO_Init(GPIOG, &GPIO_InitStructure);

  GPIO_PinAFConfig(GPIOH, GPIO_PinSource2, GPIO_AF_LTDC);
  GPIO_PinAFConfig(GPIOH, GPIO_PinSource3, GPIO_AF_LTDC);
  GPIO_PinAFConfig(GPIOH, GPIO_PinSource8, GPIO_AF_LTDC);
  GPIO_PinAFConfig(GPIOH, GPIO_PinSource9, GPIO_AF_LTDC);
  GPIO_PinAFConfig(GPIOH, GPIO_PinSource10, GPIO_AF_LTDC);
  GPIO_PinAFConfig(GPIOH, GPIO_PinSource11, GPIO_AF_LTDC);
  GPIO_PinAFConfig(GPIOH, GPIO_PinSource12, GPIO_AF_LTDC);
  GPIO_PinAFConfig(GPIOH, GPIO_PinSource13, GPIO_AF_LTDC);
  GPIO_PinAFConfig(GPIOH, GPIO_PinSource14, GPIO_AF_LTDC);
  GPIO_PinAFConfig(GPIOH, GPIO_PinSource15, GPIO_AF_LTDC);
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_2 | GPIO_Pin_3 | GPIO_Pin_8
  | GPIO_Pin_9 | GPIO_Pin_10 | GPIO_Pin_11 | GPIO_Pin_12| GPIO_Pin_13
                                | GPIO_Pin_14 | GPIO_Pin_15;
  GPIO_Init(GPIOH, &GPIO_InitStructure);

  GPIO_PinAFConfig(GPIOI, GPIO_PinSource0, GPIO_AF_LTDC);
  GPIO_PinAFConfig(GPIOI, GPIO_PinSource1, GPIO_AF_LTDC);
  GPIO_PinAFConfig(GPIOI, GPIO_PinSource2, GPIO_AF_LTDC);
  GPIO_PinAFConfig(GPIOI, GPIO_PinSource4, GPIO_AF_LTDC);
  GPIO_PinAFConfig(GPIOI, GPIO_PinSource5, GPIO_AF_LTDC);
  GPIO_PinAFConfig(GPIOI, GPIO_PinSource6, GPIO_AF_LTDC);
  GPIO_PinAFConfig(GPIOI, GPIO_PinSource7, GPIO_AF_LTDC);
  GPIO_PinAFConfig(GPIOI, GPIO_PinSource9, GPIO_AF_LTDC);
  GPIO_PinAFConfig(GPIOI, GPIO_PinSource10, GPIO_AF_LTDC);
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0 | GPIO_Pin_1 | GPIO_Pin_2 | GPIO_Pin_4
                | GPIO_Pin_5 | GPIO_Pin_6 | GPIO_Pin_7 | GPIO_Pin_9 | GPIO_Pin_10;
  GPIO_Init(GPIOI, &GPIO_InitStructure);

  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_OUT;
  GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
  GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP;
  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_100MHz;
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_13;
  GPIO_Init(GPIOD, &GPIO_InitStructure);
}

/**
  * @brief LCD configuration.
  * @note  This function Configure tha LTDC peripheral:
  *        1) Configure the Pixel Clock for the LCD
  *        2) Configure the LTDC Timing and Polarity
  *        3) Configure the LTDC Layer 1:
  *           - The frame buffer is located at SDRAM buffer
  *           - The Layer size configuration: 240x320
  *        4) Configure the Color Keying for Layer 1.
  * @retval
  *  None
  */

void LCD_Init(void)
{
  LTDC_InitTypeDef               LTDC_InitStruct;

  LCD_DisplayOn();
  /* Enable the LTDC Clock */
  RCC_APB2PeriphClockCmd(RCC_APB2Periph_LTDC, ENABLE);

  /* Enable the DMA2D Clock */
  RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_DMA2D, ENABLE);

  /* Configure the LCD Control pins */
  LCD_AF_GPIOConfig();

  /* Configure the FMC Parallel interface: SDRAM is used as Frame Buffer for LCD */
//  SDRAM_Init();

/* Enable Pixel Clock --------------------------------------------------------*/

  /* Configure PLLSAI prescalers for LCD */
  /* PLLSAI_VCO Input = HSE_VALUE/PLL_M = 1 Mhz */
  /* PLLSAI_VCO Output = PLLSAI_VCO Input * PLLSAI_N = 192 Mhz */
  /* PLLLCDCLK = PLLSAI_VCO Output/PLLSAI_R = 192/3 = 64 Mhz */
  /* LTDC clock frequency = PLLLCDCLK / RCC_PLLSAIDivR = 64/8 = 8 Mhz */
  RCC_PLLSAIConfig(192, 7, 3);
  RCC_LTDCCLKDivConfig(RCC_PLLSAIDivR_Div4);

  /* Enable PLLSAI Clock */
  RCC_PLLSAICmd(ENABLE);
  /* Wait for PLLSAI activation */
  while(RCC_GetFlagStatus(RCC_FLAG_PLLSAIRDY) == RESET)
  {
  }

/* LTDC Initialization -------------------------------------------------------*/

  /* Initialize the horizontal synchronization polarity as active low*/
  LTDC_InitStruct.LTDC_HSPolarity = LTDC_HSPolarity_AL;
  /* Initialize the vertical synchronization polarity as active low */
  LTDC_InitStruct.LTDC_VSPolarity = LTDC_VSPolarity_AL;
  /* Initialize the data enable polarity as active low */
  LTDC_InitStruct.LTDC_DEPolarity = LTDC_DEPolarity_AL;
  /* Initialize the pixel clock polarity as input pixel clock */
  LTDC_InitStruct.LTDC_PCPolarity = LTDC_PCPolarity_IPC;

  /* Timing configuration */
    /* Configure horizontal synchronization width */
  LTDC_InitStruct.LTDC_HorizontalSync = 1;
  /* Configure vertical synchronization height */
  LTDC_InitStruct.LTDC_VerticalSync = 1;
  /* Configure accumulated horizontal back porch */
  LTDC_InitStruct.LTDC_AccumulatedHBP = 46;
  /* Configure accumulated vertical back porch */
  LTDC_InitStruct.LTDC_AccumulatedVBP = 23;
  /* Configure accumulated active width */
  LTDC_InitStruct.LTDC_AccumulatedActiveW = 800+46;
  /* Configure accumulated active height */
  LTDC_InitStruct.LTDC_AccumulatedActiveH = 480+23;
  /* Configure total width */
  LTDC_InitStruct.LTDC_TotalWidth = 800+46+210;
  /* Configure total height */
  LTDC_InitStruct.LTDC_TotalHeigh = 480+23+22;
  LTDC_Init(<DC_InitStruct);
  /* Configure R,G,B component values for LCD background color */
  LTDC_InitStruct.LTDC_BackgroundRedValue = 0;
  LTDC_InitStruct.LTDC_BackgroundGreenValue = 0;
  LTDC_InitStruct.LTDC_BackgroundBlueValue = 0;
  LTDC_Init(<DC_InitStruct);
/* LTDC initialization end ---------------------------------------------------*/
LCD_LayerInit();
}
void LCD_LayerInit(void)
{
  LTDC_Layer_InitTypeDef         LTDC_Layer_InitStruct;
  LTDC_Layer_InitStruct.LTDC_HorizontalStart = 46+1;
  LTDC_Layer_InitStruct.LTDC_HorizontalStop = (800 + 46);
  LTDC_Layer_InitStruct.LTDC_VerticalStart = 23+1;
  LTDC_Layer_InitStruct.LTDC_VerticalStop = (480 + 23);
  LTDC_Layer_InitStruct.LTDC_PixelFormat = LTDC_Pixelformat_ARGB8888;
  LTDC_Layer_InitStruct.LTDC_ConstantAlpha = 255;
  LTDC_Layer_InitStruct.LTDC_BlendingFactor_1 = LTDC_BlendingFactor1_CA;
  LTDC_Layer_InitStruct.LTDC_BlendingFactor_2 = LTDC_BlendingFactor2_CA;
  LTDC_Layer_InitStruct.LTDC_DefaultColorBlue = 0;
  LTDC_Layer_InitStruct.LTDC_DefaultColorGreen = 0;
  LTDC_Layer_InitStruct.LTDC_DefaultColorRed = 0;
  LTDC_Layer_InitStruct.LTDC_DefaultColorAlpha = 0;
  LTDC_Layer_InitStruct.LTDC_CFBStartAdress = LCD_FRAME_BUFFER;

  LTDC_Layer_InitStruct.LTDC_CFBLineLength = ((800 * 4))+3;
  LTDC_Layer_InitStruct.LTDC_CFBPitch = (800 * 4);
  LTDC_Layer_InitStruct.LTDC_CFBLineNumber = 480;

  LTDC_LayerInit(LTDC_Layer1, <DC_Layer_InitStruct);

  LTDC_Layer_InitStruct.LTDC_CFBStartAdress = LCD_FRAME_BUFFER+BUFFER_OFFSET;
  LTDC_Layer_InitStruct.LTDC_BlendingFactor_1 = LTDC_BlendingFactor1_PAxCA;
  LTDC_Layer_InitStruct.LTDC_BlendingFactor_2 = LTDC_BlendingFactor2_PAxCA;

  LTDC_LayerInit(LTDC_Layer2, <DC_Layer_InitStruct);

  LTDC_ReloadConfig(LTDC_IMReload);

  LTDC_LayerCmd(LTDC_Layer1, ENABLE);
  LTDC_LayerCmd(LTDC_Layer2, ENABLE);

  LTDC_ReloadConfig(LTDC_IMReload);

  LTDC_DitherCmd(ENABLE);
}