Display something

Core/Src/main.c

@@ -21,7 +21,10 @@
 
 /* Private includes ----------------------------------------------------------*/
 /* USER CODE BEGIN Includes */
-
+#include "ft_logo_orange.h"
+#include "stm32h7xx_hal.h"
+#include "stm32h7xx_hal_ltdc.h"
+#include <stdint.h>
 /* USER CODE END Includes */
 
 /* Private typedef -----------------------------------------------------------*/
@@ -91,14 +94,21 @@ void DISP_WriteReg(uint8_t addr, uint8_t *data, size_t data_len) {
 }
 
 void DISP_Init() {
-  // SET password
+  // B9h: Enable extended commands
   uint8_t data0[] = {0xFF, 0x83, 0x57};
   DISP_WriteReg(0xB9, data0, sizeof(data0));
-  // SET power
+  // B1h: Set power control
   uint8_t data1[] = {0x00, 0x16, 0x1C, 0x1C, 0xC3, 0x5C};
   DISP_WriteReg(0xB1, data1, sizeof(data1));
-  // ?
+  // B3h: Set RGB interface
-  uint8_t data2[] = {0x53, 0x00, 0x05, 0x05};
+  // Disable SDO pin
+  // Write directly to display (not internal GRAM)
+  // Data read on rising edge of DCLK
+  // HSYNC & VSYNC Activ low
+  // DE Active high
+  // Horizontal front porch 5
+  // Vertical front porch 2
+  uint8_t data2[] = {0x53, 0x00, 0x05, 0x02};
   DISP_WriteReg(0xB3, data2, sizeof(data2));
   // SET cyc
   uint8_t data3[] = {0x32, 0x40, 0x00, 0x2A, 0x2A, 0x0D, 0x78};
@@ -138,6 +148,7 @@ void DISP_Init() {
   // Normal display mode
   DISP_WriteReg(0x13, NULL, 0);
   // Display on
+  DISP_WriteReg(0x29, NULL, 0);
 }
 /* USER CODE END 0 */
 
@@ -172,17 +183,21 @@ int main(void) {
 
   /* Initialize all configured peripherals */
   MX_GPIO_Init();
-  MX_LTDC_Init();
   MX_USART3_UART_Init();
   MX_USB_OTG_HS_USB_Init();
   /* USER CODE BEGIN 2 */
   HAL_GPIO_WritePin(SPI1_CSX_GPIO_Port, SPI1_CSX_Pin, GPIO_PIN_SET);
   HAL_GPIO_WritePin(SPI1_SCL_GPIO_Port, SPI1_SCL_Pin, GPIO_PIN_SET);
   HAL_GPIO_WritePin(DISP_RESET_GPIO_Port, DISP_RESET_Pin, GPIO_PIN_RESET);
-  HAL_Delay(1000);
+  HAL_Delay(150);
   HAL_GPIO_WritePin(DISP_RESET_GPIO_Port, DISP_RESET_Pin, GPIO_PIN_SET);
-  HAL_Delay(1000);
+  HAL_Delay(150);
   DISP_Init();
+  HAL_Delay(500);
+  MX_LTDC_Init();
+  // if (HAL_LTDC_Reload(&hltdc, LTDC_RELOAD_IMMEDIATE) != HAL_OK) {
+  //   Error_Handler();
+  // }
   /* USER CODE END 2 */
 
   /* Infinite loop */
@@ -282,34 +297,34 @@ static void MX_LTDC_Init(void) {
   hltdc.Instance = LTDC;
   hltdc.Init.HSPolarity = LTDC_HSPOLARITY_AL;
   hltdc.Init.VSPolarity = LTDC_VSPOLARITY_AL;
-  hltdc.Init.DEPolarity = LTDC_DEPOLARITY_AH;
+  hltdc.Init.DEPolarity = LTDC_DEPOLARITY_AL;
   hltdc.Init.PCPolarity = LTDC_PCPOLARITY_IPC;
-  hltdc.Init.HorizontalSync = 5;
+  hltdc.Init.HorizontalSync = 4;
-  hltdc.Init.VerticalSync = 2;
+  hltdc.Init.VerticalSync = 1;
-  hltdc.Init.AccumulatedHBP = 10;
+  hltdc.Init.AccumulatedHBP = 9;
-  hltdc.Init.AccumulatedVBP = 4;
+  hltdc.Init.AccumulatedVBP = 3;
-  hltdc.Init.AccumulatedActiveW = 330;
+  hltdc.Init.AccumulatedActiveW = 329;
-  hltdc.Init.AccumulatedActiveH = 484;
+  hltdc.Init.AccumulatedActiveH = 483;
-  hltdc.Init.TotalWidth = 335;
+  hltdc.Init.TotalWidth = 334;
-  hltdc.Init.TotalHeigh = 486;
+  hltdc.Init.TotalHeigh = 485;
   hltdc.Init.Backcolor.Blue = 0;
-  hltdc.Init.Backcolor.Green = 0;
+  hltdc.Init.Backcolor.Green = 255;
   hltdc.Init.Backcolor.Red = 255;
   if (HAL_LTDC_Init(&hltdc) != HAL_OK) {
     Error_Handler();
   }
   pLayerCfg.WindowX0 = 0;
-  pLayerCfg.WindowX1 = 0;
+  pLayerCfg.WindowX1 = 320;
   pLayerCfg.WindowY0 = 0;
-  pLayerCfg.WindowY1 = 0;
+  pLayerCfg.WindowY1 = 480;
   pLayerCfg.PixelFormat = LTDC_PIXEL_FORMAT_RGB888;
-  pLayerCfg.Alpha = 0;
+  pLayerCfg.Alpha = 255;
   pLayerCfg.Alpha0 = 0;
   pLayerCfg.BlendingFactor1 = LTDC_BLENDING_FACTOR1_CA;
   pLayerCfg.BlendingFactor2 = LTDC_BLENDING_FACTOR2_CA;
-  pLayerCfg.FBStartAdress = 0;
+  pLayerCfg.FBStartAdress = (uint32_t)&image_data_ft_logo_orange;
-  pLayerCfg.ImageWidth = 0;
+  pLayerCfg.ImageWidth = 320;
-  pLayerCfg.ImageHeight = 0;
+  pLayerCfg.ImageHeight = 480;
   pLayerCfg.Backcolor.Blue = 0;
   pLayerCfg.Backcolor.Green = 0;
   pLayerCfg.Backcolor.Red = 0;

Display-Test.ioc

@@ -5,17 +5,21 @@ File.Version=6
 GPIO.groupedBy=Group By Peripherals
 KeepUserPlacement=true
 LTDC.ActiveW=320
+LTDC.Alpha_L0=255
 LTDC.DEPolarity=LTDC_DEPOLARITY_AH
+LTDC.Green=255
 LTDC.HBP=5
 LTDC.HFP=5
-LTDC.HSync=6
+LTDC.HSync=5
-LTDC.IPParameters=ActiveW,HSync,HBP,HFP,VSync,DEPolarity,Layers,PixelFormat_L0,WindowX1_L0,WindowY1_L0,Red
+LTDC.IPParameters=ActiveW,HSync,HBP,HFP,VSync,DEPolarity,Layers,PixelFormat_L0,WindowX1_L0,WindowY1_L0,Red,Green,Alpha_L0,ImageWidth_L0,ImageHeight_L0
+LTDC.ImageHeight_L0=480
+LTDC.ImageWidth_L0=320
 LTDC.Layers=0
 LTDC.PixelFormat_L0=LTDC_PIXEL_FORMAT_RGB888
 LTDC.Red=255
-LTDC.VSync=3
+LTDC.VSync=2
-LTDC.WindowX1_L0=0
+LTDC.WindowX1_L0=320
-LTDC.WindowY1_L0=0
+LTDC.WindowY1_L0=480
 Mcu.CPN=STM32H7A3ZIT6Q
 Mcu.Family=STM32H7
 Mcu.IP0=CORTEX_M7

Makefile

@@ -1,5 +1,5 @@
 ##########################################################################################################################
-# File automatically-generated by tool: [projectgenerator] version: [3.17.1] date: [Tue Jan 17 17:33:34 CET 2023] 
+# File automatically-generated by tool: [projectgenerator] version: [3.17.1] date: [Tue Jan 17 17:58:08 CET 2023] 
 ##########################################################################################################################
 
 # ------------------------------------------------