/** * @brief Main program * @param None * @retval None */ int main(void) { uint8_t lcd_status = LCD_OK; /* STM32F4xx HAL library initialization: - Configure the Flash prefetch, instruction and Data caches - Systick timer is configured by default as source of time base, but user can eventually implement his proper time base source (a general purpose timer for example or other time source), keeping in mind that Time base duration should be kept 1ms since PPP_TIMEOUT_VALUEs are defined and handled in milliseconds basis. - Set NVIC Group Priority to 4 - Low Level Initialization: global MSP (MCU Support Package) initialization */ HAL_Init(); /* Configure the system clock to 180 MHz */ SystemClock_Config(); /* Initialize the SDRAM */ BSP_SDRAM_Init(); /* Initialize the LCD */ lcd_status = LCD_Init(); OnError_Handler(lcd_status != LCD_OK); /* Initialize LTDC layer 0 iused for Hint */ BSP_LCD_LayerDefaultInit(0, LAYER0_ADDRESS); BSP_LCD_SelectLayer(0); /* Display example brief */ LCD_BriefDisplay(); /*Draw first image */ CopyBuffer((uint32_t *)Images[ImageIndex++], (uint32_t *)LAYER0_ADDRESS, 240, 160, 320, 240); pending_buffer = 0; /*Refresh the LCD display*/ HAL_DSI_Refresh(&hdsi_eval); /* Infinite loop */ while (1) { if(pending_buffer < 0) { CopyBuffer((uint32_t *)Images[ImageIndex++], (uint32_t *)LAYER0_ADDRESS, 240, 160, 320, 240); if(ImageIndex >= 2) { ImageIndex = 0; } pending_buffer = 0; HAL_DSI_Refresh(&hdsi_eval); } /* Wait some time before switching to next image */ HAL_Delay(2000); } }
/** * @brief Main program * @param None * @retval None */ int main(void) { uint8_t lcd_status = LCD_OK; /* STM32F4xx HAL library initialization: - Configure the Flash prefetch, instruction and Data caches - Systick timer is configured by default as source of time base, but user can eventually implement his proper time base source (a general purpose timer for example or other time source), keeping in mind that Time base duration should be kept 1ms since PPP_TIMEOUT_VALUEs are defined and handled in milliseconds basis. - Set NVIC Group Priority to 4 - Low Level Initialization: global MSP (MCU Support Package) initialization */ HAL_Init(); /* Configure the system clock to 180 MHz */ SystemClock_Config(); /* Initialize the LCD */ lcd_status = BSP_LCD_Init(); OnError_Handler(lcd_status != LCD_OK); BSP_LCD_LayerDefaultInit(0, LAYER0_ADDRESS); BSP_LCD_SelectLayer(0); /* Set LTDC Line Event */ HAL_LTDC_ProgramLineEvent(&hltdc_eval, 0); /* Display example brief */ LCD_BriefDisplay(); /* Copy Buffer 0 into buffer 1, so only image area to be redrawn later */ CopyBuffer((uint32_t *)Buffers[0], (uint32_t *)Buffers[1], 0, 0, 800, 480); /* Infinite loop */ while (1) { if(pend_buffer < 0) { /* Prepare back buffer */ CopyBuffer((uint32_t *)Images[ImageIndex++], (uint32_t *)Buffers[1- front_buffer], 240, 160, 320, 240); pend_buffer = 1- front_buffer; if(ImageIndex >= 2) { ImageIndex = 0; } /* Wait some time before switching to next stage */ HAL_Delay(2000); } } }
/** * @brief Main program * @param None * @retval None */ int main(void) { uint8_t lcd_status = LCD_OK; /* STM32F4xx HAL library initialization: - Configure the Flash prefetch, instruction and Data caches - Systick timer is configured by default as source of time base, but user can eventually implement his proper time base source (a general purpose timer for example or other time source), keeping in mind that Time base duration should be kept 1ms since PPP_TIMEOUT_VALUEs are defined and handled in milliseconds basis. - Set NVIC Group Priority to 4 - Low Level Initialization: global MSP (MCU Support Package) initialization */ HAL_Init(); /* Configure the system clock to 180 MHz */ SystemClock_Config(); /* Initialize the SDRAM */ BSP_SDRAM_Init(); /* Initialize the LCD */ lcd_status = LCD_Init(); OnError_Handler(lcd_status != LCD_OK); /* Initialize LTDC layer 0 iused for Hint */ LCD_LayertInit(0, LAYER0_ADDRESS); BSP_LCD_SelectLayer(0); HAL_DSI_LongWrite(&hdsi_eval, 0, DSI_DCS_LONG_PKT_WRITE, 4, OTM8009A_CMD_CASET, pColLeft); HAL_DSI_LongWrite(&hdsi_eval, 0, DSI_DCS_LONG_PKT_WRITE, 4, OTM8009A_CMD_PASET, pPage); /* Update pitch : the draw is done on the whole physical X Size */ HAL_LTDC_SetPitch(&hltdc_eval, BSP_LCD_GetXSize(), 0); /* Display example brief */ LCD_BriefDisplay(); /* Show first image */ CopyPicture((uint32_t *)Images[ImageIndex++], (uint32_t *)LAYER0_ADDRESS, 240, 160, 320, 240); pending_buffer = 0; active_area = LEFT_AREA; HAL_DSI_LongWrite(&hdsi_eval, 0, DSI_DCS_LONG_PKT_WRITE, 2, OTM8009A_CMD_WRTESCN, pSyncLeft); /* Infinite loop */ while (1) { if(pending_buffer < 0) { CopyPicture((uint32_t *)Images[ImageIndex++], (uint32_t *)LAYER0_ADDRESS, 240, 160, 320, 240); if(ImageIndex >= 2) { ImageIndex = 0; } pending_buffer = 1; HAL_DSI_LongWrite(&hdsi_eval, 0, DSI_DCS_LONG_PKT_WRITE, 2, OTM8009A_CMD_WRTESCN, pSyncLeft); } /* Wait some time before switching to next image */ HAL_Delay(2000); } }