/**
* @brief Initializes the LCD.
* @retval LCD state
*/
uint8_t BSP_LCD_Init(void)
{
/* Select the used LCD */
/* The RK043FN48H LCD 480x272 is selected */
/* Timing Configuration */
hLtdcHandler.Init.HorizontalSync = (RK043FN48H_HSYNC - 1);
hLtdcHandler.Init.VerticalSync = (RK043FN48H_VSYNC - 1);
hLtdcHandler.Init.AccumulatedHBP = (RK043FN48H_HSYNC + RK043FN48H_HBP - 1);
hLtdcHandler.Init.AccumulatedVBP = (RK043FN48H_VSYNC + RK043FN48H_VBP - 1);
hLtdcHandler.Init.AccumulatedActiveH = (RK043FN48H_HEIGHT + RK043FN48H_VSYNC + RK043FN48H_VBP - 1);
hLtdcHandler.Init.AccumulatedActiveW = (RK043FN48H_WIDTH + RK043FN48H_HSYNC + RK043FN48H_HBP - 1);
hLtdcHandler.Init.TotalHeigh = (RK043FN48H_HEIGHT + RK043FN48H_VSYNC + RK043FN48H_VBP + RK043FN48H_VFP - 1);
hLtdcHandler.Init.TotalWidth = (RK043FN48H_WIDTH + RK043FN48H_HSYNC + RK043FN48H_HBP + RK043FN48H_HFP - 1);
/* LCD clock configuration */
BSP_LCD_ClockConfig(&hLtdcHandler, NULL);
/* Initialize the LCD pixel width and pixel height */
hLtdcHandler.LayerCfg->ImageWidth = RK043FN48H_WIDTH;
hLtdcHandler.LayerCfg->ImageHeight = RK043FN48H_HEIGHT;
/* Background value */
hLtdcHandler.Init.Backcolor.Blue = 0;
hLtdcHandler.Init.Backcolor.Green = 0;
hLtdcHandler.Init.Backcolor.Red = 0;
/* Polarity */
hLtdcHandler.Init.HSPolarity = LTDC_HSPOLARITY_AL;
hLtdcHandler.Init.VSPolarity = LTDC_VSPOLARITY_AL;
hLtdcHandler.Init.DEPolarity = LTDC_DEPOLARITY_AL;
hLtdcHandler.Init.PCPolarity = LTDC_PCPOLARITY_IPC;
hLtdcHandler.Instance = LTDC;
if(HAL_LTDC_GetState(&hLtdcHandler) == HAL_LTDC_STATE_RESET)
{
/* Initialize the LCD Msp: this __weak function can be rewritten by the application */
BSP_LCD_MspInit(&hLtdcHandler, NULL);
}
HAL_LTDC_Init(&hLtdcHandler);
/* Assert display enable LCD_DISP pin */
HAL_GPIO_WritePin(LCD_DISP_GPIO_PORT, LCD_DISP_PIN, GPIO_PIN_SET);
/* Assert backlight LCD_BL_CTRL pin */
HAL_GPIO_WritePin(LCD_BL_CTRL_GPIO_PORT, LCD_BL_CTRL_PIN, GPIO_PIN_SET);
#if !defined(DATA_IN_ExtSDRAM)
/* Initialize the SDRAM */
BSP_SDRAM_Init();
#endif
/* Initialize the font */
BSP_LCD_SetFont(&LCD_DEFAULT_FONT);
return LCD_OK;
}
/**
* @brief Initializes the LCD.
* @retval LCD state
*/
uint8_t BSP_LCD_Init(void)
{
/* Timing Configuration */
ltdc_handle.Init.HorizontalSync = (RK043FN48H_HSYNC - 1);
ltdc_handle.Init.VerticalSync = (RK043FN48H_VSYNC - 1);
ltdc_handle.Init.AccumulatedHBP = (RK043FN48H_HSYNC + RK043FN48H_HBP - 1);
ltdc_handle.Init.AccumulatedVBP = (RK043FN48H_VSYNC + RK043FN48H_VBP - 1);
ltdc_handle.Init.AccumulatedActiveH = (RK043FN48H_HEIGHT + RK043FN48H_VSYNC + RK043FN48H_VBP - 1);
ltdc_handle.Init.AccumulatedActiveW = (RK043FN48H_WIDTH + RK043FN48H_HSYNC + RK043FN48H_HBP - 1);
ltdc_handle.Init.TotalHeigh = (RK043FN48H_HEIGHT + RK043FN48H_VSYNC + RK043FN48H_VBP + RK043FN48H_VFP - 1);
ltdc_handle.Init.TotalWidth = (RK043FN48H_WIDTH + RK043FN48H_HSYNC + RK043FN48H_HBP + RK043FN48H_HFP - 1);
/* LCD clock configuration */
BSP_LCD_ClockConfig(<dc_handle, NULL);
/* Initialize the LCD pixel width and pixel height */
ltdc_handle.LayerCfg->ImageWidth = RK043FN48H_WIDTH;
ltdc_handle.LayerCfg->ImageHeight = RK043FN48H_HEIGHT;
/* Background value */
ltdc_handle.Init.Backcolor.Blue = 0;
ltdc_handle.Init.Backcolor.Green = 0;
ltdc_handle.Init.Backcolor.Red = 0;
/* Polarity */
ltdc_handle.Init.HSPolarity = LTDC_HSPOLARITY_AL;
ltdc_handle.Init.VSPolarity = LTDC_VSPOLARITY_AL;
ltdc_handle.Init.DEPolarity = LTDC_DEPOLARITY_AL;
ltdc_handle.Init.PCPolarity = LTDC_PCPOLARITY_IPC;
ltdc_handle.Instance = LTDC;
if (HAL_LTDC_GetState(<dc_handle) == HAL_LTDC_STATE_RESET) {
BSP_LCD_MspInit(<dc_handle, NULL);
}
HAL_LTDC_Init(<dc_handle);
/* allocate the framebuffer */
size_t fb_size_pages = PAGE_ALIGN(RK043FN48H_WIDTH * RK043FN48H_HEIGHT * 4) / PAGE_SIZE;
void *fb_address = novm_alloc_pages(fb_size_pages, NOVM_ARENA_SECONDARY);
if (!fb_address)
panic("failed to allocate framebuffer for LCD\n");
BSP_LCD_LayerDefaultInit(0, (uint32_t)fb_address);
BSP_LCD_SelectLayer(0);
/* clear framebuffer */
memset((void *)ltdc_handle.LayerCfg[active_layer].FBStartAdress, 0,
BSP_LCD_GetXSize() * BSP_LCD_GetYSize() * BSP_LCD_PixelSize());
/* turn the display on */
BSP_LCD_DisplayOn();
return LCD_OK;
}
/**
* @brief Initializes the DSI LCD.
* The ititialization is done as below:
* - DSI PLL ititialization
* - DSI ititialization
* - LTDC ititialization
* - OTM8009A LCD Display IC Driver ititialization
* @param None
* @retval LCD state
*/
static uint8_t LCD_Init(void)
{
/* Toggle Hardware Reset of the DSI LCD using
* its XRES signal (active low) */
BSP_LCD_Reset();
/* Call first MSP Initialize only in case of first initialization
* This will set IP blocks LTDC, DSI and DMA2D
* - out of reset
* - clocked
* - NVIC IRQ related to IP blocks enabled
*/
BSP_LCD_MspInit();
/* LCD clock configuration */
/* PLLSAI_VCO Input = HSE_VALUE/PLL_M = 1 Mhz */
/* PLLSAI_VCO Output = PLLSAI_VCO Input * PLLSAIN = 417 Mhz */
/* PLLLCDCLK = PLLSAI_VCO Output/PLLSAIR = 417 MHz / 5 = 83.4 MHz */
/* LTDC clock frequency = PLLLCDCLK / LTDC_PLLSAI_DIVR_2 = 83.4 / 2 = 41.7 MHz */
PeriphClkInitStruct.PeriphClockSelection = RCC_PERIPHCLK_LTDC;
PeriphClkInitStruct.PLLSAI.PLLSAIN = 417;
PeriphClkInitStruct.PLLSAI.PLLSAIR = 5;
PeriphClkInitStruct.PLLSAIDivR = RCC_PLLSAIDIVR_2;
HAL_RCCEx_PeriphCLKConfig(&PeriphClkInitStruct);
/* Base address of DSI Host/Wrapper registers to be set before calling De-Init */
hdsi_eval.Instance = DSI;
HAL_DSI_DeInit(&(hdsi_eval));
dsiPllInit.PLLNDIV = 100;
dsiPllInit.PLLIDF = DSI_PLL_IN_DIV5;
dsiPllInit.PLLODF = DSI_PLL_OUT_DIV1;
hdsi_eval.Init.NumberOfLanes = DSI_TWO_DATA_LANES;
hdsi_eval.Init.TXEscapeCkdiv = 0x4;
HAL_DSI_Init(&(hdsi_eval), &(dsiPllInit));
/* Configure the DSI for Command mode */
CmdCfg.VirtualChannelID = 0;
CmdCfg.HSPolarity = DSI_HSYNC_ACTIVE_HIGH;
CmdCfg.VSPolarity = DSI_VSYNC_ACTIVE_HIGH;
CmdCfg.DEPolarity = DSI_DATA_ENABLE_ACTIVE_HIGH;
CmdCfg.ColorCoding = DSI_RGB888;
CmdCfg.CommandSize = HACT;
CmdCfg.TearingEffectSource = DSI_TE_DSILINK;
CmdCfg.TearingEffectPolarity = DSI_TE_RISING_EDGE;
CmdCfg.VSyncPol = DSI_VSYNC_FALLING;
CmdCfg.AutomaticRefresh = DSI_AR_ENABLE;
CmdCfg.TEAcknowledgeRequest = DSI_TE_ACKNOWLEDGE_ENABLE;
HAL_DSI_ConfigAdaptedCommandMode(&hdsi_eval, &CmdCfg);
LPCmd.LPGenShortWriteNoP = DSI_LP_GSW0P_ENABLE;
LPCmd.LPGenShortWriteOneP = DSI_LP_GSW1P_ENABLE;
LPCmd.LPGenShortWriteTwoP = DSI_LP_GSW2P_ENABLE;
LPCmd.LPGenShortReadNoP = DSI_LP_GSR0P_ENABLE;
LPCmd.LPGenShortReadOneP = DSI_LP_GSR1P_ENABLE;
LPCmd.LPGenShortReadTwoP = DSI_LP_GSR2P_ENABLE;
LPCmd.LPGenLongWrite = DSI_LP_GLW_ENABLE;
LPCmd.LPDcsShortWriteNoP = DSI_LP_DSW0P_ENABLE;
LPCmd.LPDcsShortWriteOneP = DSI_LP_DSW1P_ENABLE;
LPCmd.LPDcsShortReadNoP = DSI_LP_DSR0P_ENABLE;
LPCmd.LPDcsLongWrite = DSI_LP_DLW_ENABLE;
HAL_DSI_ConfigCommand(&hdsi_eval, &LPCmd);
/* Initialize LTDC */
LTDC_Init();
/* Start DSI */
HAL_DSI_Start(&(hdsi_eval));
/* Initialize the OTM8009A LCD Display IC Driver (KoD LCD IC Driver)*/
OTM8009A_Init(OTM8009A_COLMOD_RGB888, LCD_ORIENTATION_LANDSCAPE);
/* Reconfigure the DSI for HS Command mode */
LPCmd.LPGenShortWriteNoP = DSI_LP_GSW0P_DISABLE;
LPCmd.LPGenShortWriteOneP = DSI_LP_GSW1P_DISABLE;
LPCmd.LPGenShortWriteTwoP = DSI_LP_GSW2P_DISABLE;
LPCmd.LPGenShortReadNoP = DSI_LP_GSR0P_DISABLE;
LPCmd.LPGenShortReadOneP = DSI_LP_GSR1P_DISABLE;
LPCmd.LPGenShortReadTwoP = DSI_LP_GSR2P_DISABLE;
LPCmd.LPGenLongWrite = DSI_LP_GLW_DISABLE;
LPCmd.LPDcsShortWriteNoP = DSI_LP_DSW0P_DISABLE;
LPCmd.LPDcsShortWriteOneP = DSI_LP_DSW1P_DISABLE;
LPCmd.LPDcsShortReadNoP = DSI_LP_DSR0P_DISABLE;
LPCmd.LPDcsLongWrite = DSI_LP_DLW_DISABLE;
HAL_DSI_ConfigCommand(&hdsi_eval, &LPCmd);
HAL_DSI_ConfigFlowControl(&hdsi_eval, DSI_FLOW_CONTROL_BTA);
/* Refresh the display */
HAL_DSI_Refresh(&hdsi_eval);
return LCD_OK;
}
int main(void)
{
/*!< At this stage the microcontroller clock setting is already configured,
this is done through SystemInit() function which is called from startup
file (startup_stm32f4xx.s) before to branch to application main.
To reconfigure the default setting of SystemInit() function, refer to
system_stm32f4xx.c file
*/
SystemClock_Config();
uint8_t lcd_status = LCD_OK;
HAL_MspInit();
HAL_Init();
BSP_SDRAM_Init();
// uint32_t i;
int i;
__HAL_RCC_GPIOD_CLK_ENABLE();
__HAL_RCC_GPIOG_CLK_ENABLE();
__HAL_RCC_GPIOK_CLK_ENABLE();
GPIO_InitTypeDef GPIO_InitStructure;
GPIO_InitStructure.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStructure.Speed = GPIO_SPEED_HIGH;
GPIO_InitStructure.Pull = GPIO_NOPULL; //GPIO_PULLDOWN;//GPIO_PULLUP;//
GUI_Conf.border=8;
GPIO_InitStructure.Pin = GPIO_PIN_6;
HAL_GPIO_Init(GPIOG,&GPIO_InitStructure);
GPIO_InitStructure.Pin = GPIO_PIN_5;
HAL_GPIO_Init(GPIOD,&GPIO_InitStructure);
GPIO_InitStructure.Pin = GPIO_PIN_4;
HAL_GPIO_Init(GPIOD,&GPIO_InitStructure);
GPIO_InitStructure.Pin = GPIO_PIN_3;
HAL_GPIO_Init(GPIOK,&GPIO_InitStructure);
BSP_LCD_Reset(); BSP_LCD_MspInit();
//lcd_status = BSP_LCD_InitEx(LCD_ORIENTATION_PORTRAIT);
//lcd_status = BSP_LCD_InitEx(LCD_ORIENTATION_LANDSCAPE);
lcd_status = BSP_LCD_Init();
BSP_LCD_LayerDefaultInit(0, LCD_FB_START_ADDRESS);
BSP_LCD_SelectLayer(0);
BSP_LCD_DisplayOn();
BSP_LCD_SetTransparency(0,0xff);
if(lcd_status!=LCD_OK)
f_error();
BSP_LCD_Clear(LCD_COLOR_BLACK);
BSP_LCD_SetTextColor(LCD_COLOR_BLUE);
BSP_LCD_FillRect(0, 0,BSP_LCD_GetXSize(),BSP_LCD_GetYSize());
BSP_LCD_SetTextColor(LCD_COLOR_WHITE);
BSP_LCD_FillRect(GUI_Conf.border, GUI_Conf.border,BSP_LCD_GetXSize()-2*GUI_Conf.border,BSP_LCD_GetYSize()-2*GUI_Conf.border);
BSP_LCD_SetTextColor(LCD_COLOR_BLACK);
BSP_LCD_SetFont(&Font16);
BSP_LCD_SetBackColor(LCD_COLOR_TRANSPARENT);
BSP_LCD_DisplayStringAtLine(1, (uint8_t *)" FAT SD");
while(1){
Delay(1000);
switch(i%4){
case 0:
HAL_GPIO_TogglePin(GPIOG,GPIO_PIN_6);
break;
case 1:
HAL_GPIO_TogglePin(GPIOD,GPIO_PIN_4);
break;
case 2:
HAL_GPIO_TogglePin(GPIOD,GPIO_PIN_5);
break;
case 3:
HAL_GPIO_TogglePin(GPIOK,GPIO_PIN_3);
break;
}
i++;
if(! i%4)
i=0;
}
}
/**
* @brief Initializes the LCD.
* @retval LCD state
*/
uint8_t BSP_LCD_Init(void)
{
/* On STM32F429I-DISCO, it is not possible to read ILI9341 ID because */
/* PIN EXTC is not connected to VDD and then LCD_READ_ID4 is not accessible. */
/* In this case, ReadID function is bypassed.*/
/*if(ili9341_drv.ReadID() == ILI9341_ID)*/
/* LTDC Configuration ----------------------------------------------------*/
LtdcHandler.Instance = LTDC;
/* Timing configuration (Typical configuration from ILI9341 datasheet)
HSYNC=10 (9+1)
HBP=20 (29-10+1)
ActiveW=240 (269-20-10+1)
HFP=10 (279-240-20-10+1)
VSYNC=2 (1+1)
VBP=2 (3-2+1)
ActiveH=320 (323-2-2+1)
VFP=4 (327-320-2-2+1)
*/
/* Configure horizontal synchronization width */
LtdcHandler.Init.HorizontalSync = ILI9341_HSYNC;
/* Configure vertical synchronization height */
LtdcHandler.Init.VerticalSync = ILI9341_VSYNC;
/* Configure accumulated horizontal back porch */
LtdcHandler.Init.AccumulatedHBP = ILI9341_HBP;
/* Configure accumulated vertical back porch */
LtdcHandler.Init.AccumulatedVBP = ILI9341_VBP;
/* Configure accumulated active width */
LtdcHandler.Init.AccumulatedActiveW = 269;
/* Configure accumulated active height */
LtdcHandler.Init.AccumulatedActiveH = 323;
/* Configure total width */
LtdcHandler.Init.TotalWidth = 279;
/* Configure total height */
LtdcHandler.Init.TotalHeigh = 327;
/* Configure R,G,B component values for LCD background color */
LtdcHandler.Init.Backcolor.Red= 0;
LtdcHandler.Init.Backcolor.Blue= 0;
LtdcHandler.Init.Backcolor.Green= 0;
/* LCD clock configuration */
/* PLLSAI_VCO Input = HSE_VALUE/PLL_M = 1 Mhz */
/* PLLSAI_VCO Output = PLLSAI_VCO Input * PLLSAIN = 192 Mhz */
/* PLLLCDCLK = PLLSAI_VCO Output/PLLSAIR = 192/4 = 48 Mhz */
/* LTDC clock frequency = PLLLCDCLK / LTDC_PLLSAI_DIVR_8 = 48/4 = 6Mhz */
PeriphClkInitStruct.PeriphClockSelection = RCC_PERIPHCLK_LTDC;
PeriphClkInitStruct.PLLSAI.PLLSAIN = 192;
PeriphClkInitStruct.PLLSAI.PLLSAIR = 4;
PeriphClkInitStruct.PLLSAIDivR = RCC_PLLSAIDIVR_8;
HAL_RCCEx_PeriphCLKConfig(&PeriphClkInitStruct);
/* Polarity */
LtdcHandler.Init.HSPolarity = LTDC_HSPOLARITY_AL;
LtdcHandler.Init.VSPolarity = LTDC_VSPOLARITY_AL;
LtdcHandler.Init.DEPolarity = LTDC_DEPOLARITY_AL;
LtdcHandler.Init.PCPolarity = LTDC_PCPOLARITY_IPC;
BSP_LCD_MspInit();
HAL_LTDC_Init(&LtdcHandler);
/* Select the device */
LcdDrv = &ili9341_drv;
/* LCD Init */
LcdDrv->Init();
/* Initialize the SDRAM */
BSP_SDRAM_Init();
/* Initialize the font */
BSP_LCD_SetFont(&LCD_DEFAULT_FONT);
return LCD_OK;
}
/**
* @brief Initializes the DSI LCD.
* The ititialization is done as below:
* - DSI PLL ititialization
* - DSI ititialization
* - LTDC ititialization
* - OTM8009A LCD Display IC Driver ititialization
* @param None
* @retval LCD state
*/
static uint8_t LCD_Init(void){
GPIO_InitTypeDef GPIO_Init_Structure;
/* Toggle Hardware Reset of the DSI LCD using
* its XRES signal (active low) */
BSP_LCD_Reset();
/* Call first MSP Initialize only in case of first initialization
* This will set IP blocks LTDC, DSI and DMA2D
* - out of reset
* - clocked
* - NVIC IRQ related to IP blocks enabled
*/
BSP_LCD_MspInit();
/* LCD clock configuration */
/* PLLSAI_VCO Input = HSE_VALUE/PLL_M = 1 Mhz */
/* PLLSAI_VCO Output = PLLSAI_VCO Input * PLLSAIN = 417 Mhz */
/* PLLLCDCLK = PLLSAI_VCO Output/PLLSAIR = 417 MHz / 5 = 83.4 MHz */
/* LTDC clock frequency = PLLLCDCLK / LTDC_PLLSAI_DIVR_2 = 83.4 / 2 = 41.7 MHz */
PeriphClkInitStruct.PeriphClockSelection = RCC_PERIPHCLK_LTDC;
PeriphClkInitStruct.PLLSAI.PLLSAIN = 417;
PeriphClkInitStruct.PLLSAI.PLLSAIR = 5;
PeriphClkInitStruct.PLLSAIDivR = RCC_PLLSAIDIVR_2;
HAL_RCCEx_PeriphCLKConfig(&PeriphClkInitStruct);
/* Base address of DSI Host/Wrapper registers to be set before calling De-Init */
hdsi_eval.Instance = DSI;
HAL_DSI_DeInit(&(hdsi_eval));
#if defined(USE_STM32469I_DISCO_REVA)
dsiPllInit.PLLNDIV = 100;
dsiPllInit.PLLIDF = DSI_PLL_IN_DIV5;
#else
dsiPllInit.PLLNDIV = 125;
dsiPllInit.PLLIDF = DSI_PLL_IN_DIV2;
#endif /* USE_STM32469I_DISCO_REVA */
dsiPllInit.PLLODF = DSI_PLL_OUT_DIV1;
hdsi_eval.Init.NumberOfLanes = DSI_TWO_DATA_LANES;
hdsi_eval.Init.TXEscapeCkdiv = 0x4;
HAL_DSI_Init(&(hdsi_eval), &(dsiPllInit));
/* Configure the DSI for Command mode */
CmdCfg.VirtualChannelID = 0;
CmdCfg.HSPolarity = DSI_HSYNC_ACTIVE_HIGH;
CmdCfg.VSPolarity = DSI_VSYNC_ACTIVE_HIGH;
CmdCfg.DEPolarity = DSI_DATA_ENABLE_ACTIVE_HIGH;
CmdCfg.ColorCoding = DSI_RGB888;
CmdCfg.CommandSize = HACT;
CmdCfg.TearingEffectSource = DSI_TE_EXTERNAL;
CmdCfg.TearingEffectPolarity = DSI_TE_RISING_EDGE;
CmdCfg.VSyncPol = DSI_VSYNC_FALLING;
CmdCfg.AutomaticRefresh = DSI_AR_DISABLE;
CmdCfg.TEAcknowledgeRequest = DSI_TE_ACKNOWLEDGE_ENABLE;
HAL_DSI_ConfigAdaptedCommandMode(&hdsi_eval, &CmdCfg);
LPCmd.LPGenShortWriteNoP = DSI_LP_GSW0P_ENABLE;
LPCmd.LPGenShortWriteOneP = DSI_LP_GSW1P_ENABLE;
LPCmd.LPGenShortWriteTwoP = DSI_LP_GSW2P_ENABLE;
LPCmd.LPGenShortReadNoP = DSI_LP_GSR0P_ENABLE;
LPCmd.LPGenShortReadOneP = DSI_LP_GSR1P_ENABLE;
LPCmd.LPGenShortReadTwoP = DSI_LP_GSR2P_ENABLE;
LPCmd.LPGenLongWrite = DSI_LP_GLW_ENABLE;
LPCmd.LPDcsShortWriteNoP = DSI_LP_DSW0P_ENABLE;
LPCmd.LPDcsShortWriteOneP = DSI_LP_DSW1P_ENABLE;
LPCmd.LPDcsShortReadNoP = DSI_LP_DSR0P_ENABLE;
LPCmd.LPDcsLongWrite = DSI_LP_DLW_ENABLE;
HAL_DSI_ConfigCommand(&hdsi_eval, &LPCmd);
/* Initialize LTDC */
LTDC_Init();
/* Start DSI */
HAL_DSI_Start(&(hdsi_eval));
/* Initialize the OTM8009A LCD Display IC Driver (KoD LCD IC Driver)
* depending on configuration set in 'hdsivideo_handle'.
*/
OTM8009A_Init(OTM8009A_COLMOD_RGB888, LCD_ORIENTATION_LANDSCAPE);
LPCmd.LPGenShortWriteNoP = DSI_LP_GSW0P_DISABLE;
LPCmd.LPGenShortWriteOneP = DSI_LP_GSW1P_DISABLE;
LPCmd.LPGenShortWriteTwoP = DSI_LP_GSW2P_DISABLE;
LPCmd.LPGenShortReadNoP = DSI_LP_GSR0P_DISABLE;
LPCmd.LPGenShortReadOneP = DSI_LP_GSR1P_DISABLE;
LPCmd.LPGenShortReadTwoP = DSI_LP_GSR2P_DISABLE;
LPCmd.LPGenLongWrite = DSI_LP_GLW_DISABLE;
LPCmd.LPDcsShortWriteNoP = DSI_LP_DSW0P_DISABLE;
LPCmd.LPDcsShortWriteOneP = DSI_LP_DSW1P_DISABLE;
LPCmd.LPDcsShortReadNoP = DSI_LP_DSR0P_DISABLE;
LPCmd.LPDcsLongWrite = DSI_LP_DLW_DISABLE;
HAL_DSI_ConfigCommand(&hdsi_eval, &LPCmd);
HAL_DSI_ConfigFlowControl(&hdsi_eval, DSI_FLOW_CONTROL_BTA);
/* Enable GPIOJ clock */
__HAL_RCC_GPIOJ_CLK_ENABLE();
/* Configure DSI_TE pin from MB1166 : Tearing effect on separated GPIO from KoD LCD */
/* that is mapped on GPIOJ2 as alternate DSI function (DSI_TE) */
/* This pin is used only when the LCD and DSI link is configured in command mode */
/* Not used in DSI Video mode. */
GPIO_Init_Structure.Pin = GPIO_PIN_2;
GPIO_Init_Structure.Mode = GPIO_MODE_AF_PP;
GPIO_Init_Structure.Pull = GPIO_NOPULL;
GPIO_Init_Structure.Speed = GPIO_SPEED_HIGH;
GPIO_Init_Structure.Alternate = GPIO_AF13_DSI;
HAL_GPIO_Init(GPIOJ, &GPIO_Init_Structure);
/* Refresh the display */
HAL_DSI_Refresh(&hdsi_eval);
return LCD_OK;
}
static uint8_t LCD_Init(void)
{
DSI_PLLInitTypeDef dsiPllInit;
static RCC_PeriphCLKInitTypeDef PeriphClkInitStruct;
uint32_t LcdClock = 19200;
uint32_t Clockratio = 0;
uint32_t laneByteClk_kHz = 0;
uint32_t VSA; /*!< Vertical start active time in units of lines */
uint32_t VBP; /*!< Vertical Back Porch time in units of lines */
uint32_t VFP; /*!< Vertical Front Porch time in units of lines */
uint32_t VACT; /*!< Vertical Active time in units of lines = imageSize Y in pixels to display */
uint32_t HSA; /*!< Horizontal start active time in units of lcdClk */
uint32_t HBP; /*!< Horizontal Back Porch time in units of lcdClk */
uint32_t HFP; /*!< Horizontal Front Porch time in units of lcdClk */
uint32_t HACT; /*!< Horizontal Active time in units of lcdClk = imageSize X in pixels to display */
/* Toggle Hardware Reset of the DSI LCD using
* its XRES signal (active low) */
BSP_LCD_Reset();
/* Call first MSP Initialize only in case of first initialization
* This will set IP blocks LTDC, DSI and DMA2D
* - out of reset
* - clocked
* - NVIC IRQ related to IP blocks enabled
*/
BSP_LCD_MspInit();
/*************************DSI Initialization***********************************/
/* Base address of DSI Host/Wrapper registers to be set before calling De-Init */
hdsi_eval.Instance = DSI;
HAL_DSI_DeInit(&(hdsi_eval));
#if !defined(USE_STM32469I_DISCO_REVA)
dsiPllInit.PLLNDIV = 125;
dsiPllInit.PLLIDF = DSI_PLL_IN_DIV2;
dsiPllInit.PLLODF = DSI_PLL_OUT_DIV1;
#else
dsiPllInit.PLLNDIV = 100;
dsiPllInit.PLLIDF = DSI_PLL_IN_DIV5;
dsiPllInit.PLLODF = DSI_PLL_OUT_DIV1;
#endif
laneByteClk_kHz = 62500; /* 500 MHz / 8 = 62.5 MHz = 62500 kHz */
/* Set number of Lanes */
hdsi_eval.Init.NumberOfLanes = DSI_TWO_DATA_LANES;
/* TXEscapeCkdiv = f(LaneByteClk)/15.62 = 4 */
hdsi_eval.Init.TXEscapeCkdiv = laneByteClk_kHz/15620;
HAL_DSI_Init(&(hdsi_eval), &(dsiPllInit));
Clockratio = laneByteClk_kHz/LcdClock;
/* Timing parameters for all Video modes
* Set Timing parameters of LTDC */
/* lcd_orientation == LCD_ORIENTATION_LANDSCAPE */
VSA = OTM8009A_800X480_VSYNC; /* 12 */
VBP = OTM8009A_800X480_VBP; /* 12 */
VFP = OTM8009A_800X480_VFP; /* 12 */
HSA = OTM8009A_800X480_HSYNC; /* 120 */
HBP = OTM8009A_800X480_HBP; /* 120 */
HFP = OTM8009A_800X480_HFP; /* 120 */
HACT = OTM8009A_800X480_WIDTH; /* 800 */
VACT = OTM8009A_800X480_HEIGHT; /* 480 */
hdsivideo_handle.VirtualChannelID = LCD_OTM8009A_ID;
hdsivideo_handle.ColorCoding = LCD_DSI_PIXEL_DATA_FMT_RBG888;
hdsivideo_handle.VSPolarity = DSI_VSYNC_ACTIVE_HIGH;
hdsivideo_handle.HSPolarity = DSI_HSYNC_ACTIVE_HIGH;
hdsivideo_handle.DEPolarity = DSI_DATA_ENABLE_ACTIVE_HIGH;
hdsivideo_handle.Mode = DSI_VID_MODE_BURST; /* Mode Video burst ie : one LgP per line */
hdsivideo_handle.NullPacketSize = 0xFFF;
hdsivideo_handle.NumberOfChunks = 0;
hdsivideo_handle.PacketSize = HACT; /* Value depending on display orientation choice portrait/landscape */
hdsivideo_handle.HorizontalSyncActive = HSA*Clockratio;
hdsivideo_handle.HorizontalBackPorch = HBP*Clockratio;
hdsivideo_handle.HorizontalLine = (HACT + HSA + HBP + HFP)*Clockratio; /* Value depending on display orientation choice portrait/landscape */
hdsivideo_handle.VerticalSyncActive = VSA;
hdsivideo_handle.VerticalBackPorch = VBP;
hdsivideo_handle.VerticalFrontPorch = VFP;
hdsivideo_handle.VerticalActive = VACT; /* Value depending on display orientation choice portrait/landscape */
/* Enable or disable sending LP command while streaming is active in video mode */
hdsivideo_handle.LPCommandEnable = DSI_LP_COMMAND_ENABLE; /* Enable sending commands in mode LP (Low Power) */
/* Largest packet size possible to transmit in LP mode in VSA, VBP, VFP regions */
/* Only useful when sending LP packets is allowed while streaming is active in video mode */
hdsivideo_handle.LPLargestPacketSize = 64;
/* Largest packet size possible to transmit in LP mode in HFP region during VACT period */
/* Only useful when sending LP packets is allowed while streaming is active in video mode */
hdsivideo_handle.LPVACTLargestPacketSize = 64;
/* Specify for each region of the video frame, if the transmission of command in LP mode is allowed in this region */
/* while streaming is active in video mode */
hdsivideo_handle.LPHorizontalFrontPorchEnable = DSI_LP_HFP_ENABLE; /* Allow sending LP commands during HFP period */
hdsivideo_handle.LPHorizontalBackPorchEnable = DSI_LP_HBP_ENABLE; /* Allow sending LP commands during HBP period */
hdsivideo_handle.LPVerticalActiveEnable = DSI_LP_VACT_ENABLE; /* Allow sending LP commands during VACT period */
hdsivideo_handle.LPVerticalFrontPorchEnable = DSI_LP_VFP_ENABLE; /* Allow sending LP commands during VFP period */
hdsivideo_handle.LPVerticalBackPorchEnable = DSI_LP_VBP_ENABLE; /* Allow sending LP commands during VBP period */
hdsivideo_handle.LPVerticalSyncActiveEnable = DSI_LP_VSYNC_ENABLE; /* Allow sending LP commands during VSync = VSA period */
/* Configure DSI Video mode timings with settings set above */
HAL_DSI_ConfigVideoMode(&(hdsi_eval), &(hdsivideo_handle));
/* Enable the DSI host and wrapper : but LTDC is not started yet at this stage */
HAL_DSI_Start(&(hdsi_eval));
/*************************End DSI Initialization*******************************/
/************************LTDC Initialization***********************************/
/* Timing Configuration */
hltdc_eval.Init.HorizontalSync = (HSA - 1);
hltdc_eval.Init.AccumulatedHBP = (HSA + HBP - 1);
hltdc_eval.Init.AccumulatedActiveW = (HACT + HSA + HBP - 1);
hltdc_eval.Init.TotalWidth = (HACT + HSA + HBP + HFP - 1);
/* Initialize the LCD pixel width and pixel height */
hltdc_eval.LayerCfg->ImageWidth = HACT;
hltdc_eval.LayerCfg->ImageHeight = VACT;
/* LCD clock configuration */
/* PLLSAI_VCO Input = HSE_VALUE/PLL_M = 1 Mhz */
/* PLLSAI_VCO Output = PLLSAI_VCO Input * PLLSAIN = 384 Mhz */
/* PLLLCDCLK = PLLSAI_VCO Output/PLLSAIR = 384 MHz / 7 = 54.857 MHz */
/* LTDC clock frequency = PLLLCDCLK / LTDC_PLLSAI_DIVR_2 = 54.857 MHz / 2 = 27.429 MHz */
PeriphClkInitStruct.PeriphClockSelection = RCC_PERIPHCLK_LTDC;
PeriphClkInitStruct.PLLSAI.PLLSAIN = 384;
PeriphClkInitStruct.PLLSAI.PLLSAIR = 5;
PeriphClkInitStruct.PLLSAIDivR = RCC_PLLSAIDIVR_4;
HAL_RCCEx_PeriphCLKConfig(&PeriphClkInitStruct);
/* Background value */
hltdc_eval.Init.Backcolor.Blue = 0;
hltdc_eval.Init.Backcolor.Green = 0;
hltdc_eval.Init.Backcolor.Red = 0;
hltdc_eval.Init.PCPolarity = LTDC_PCPOLARITY_IPC;
hltdc_eval.Instance = LTDC;
/* Get LTDC Configuration from DSI Configuration */
HAL_LTDC_StructInitFromVideoConfig(&(hltdc_eval), &(hdsivideo_handle));
/* Initialize the LTDC */
HAL_LTDC_Init(&hltdc_eval);
#if !defined(DATA_IN_ExtSDRAM)
/* Initialize the SDRAM */
BSP_SDRAM_Init();
#endif /* DATA_IN_ExtSDRAM */
/* Initialize the font */
BSP_LCD_SetFont(&LCD_DEFAULT_FONT);
/************************End LTDC Initialization*******************************/
/***********************OTM8009A Initialization********************************/
/* Initialize the OTM8009A LCD Display IC Driver (KoD LCD IC Driver)
* depending on configuration set in 'hdsivideo_handle'.
*/
OTM8009A_Init(hdsivideo_handle.ColorCoding, LCD_ORIENTATION_LANDSCAPE);
/***********************End OTM8009A Initialization****************************/
return LCD_OK;
}
