mirror of
https://github.com/STMicroelectronics/STM32CubeF7.git
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283 lines
8.0 KiB
C
283 lines
8.0 KiB
C
/**
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******************************************************************************
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* @file DCMI/DCMI_CaptureMode/Src/main.c
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* @author MCD Application Team
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* @brief This example discribe how to configure the camera in continuous mode
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* and QVGA resolution.
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******************************************************************************
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* @attention
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*
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* <h2><center>© Copyright (c) 2016 STMicroelectronics.
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* All rights reserved.</center></h2>
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*
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* This software component is licensed by ST under BSD 3-Clause license,
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* the "License"; You may not use this file except in compliance with the
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* License. You may obtain a copy of the License at:
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* opensource.org/licenses/BSD-3-Clause
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*
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******************************************************************************
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*/
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/* Includes ------------------------------------------------------------------*/
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#include "main.h"
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/** @addtogroup STM32F7xx_HAL_Examples
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* @{
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*/
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/** @addtogroup DCMI_CaptureMode
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* @{
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*/
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/* Private typedef -----------------------------------------------------------*/
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/* Private define ------------------------------------------------------------*/
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/* Private macro -------------------------------------------------------------*/
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/* Private variables ---------------------------------------------------------*/
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DMA2D_HandleTypeDef hdma2d_eval;
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/* Private function prototypes -----------------------------------------------*/
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void SystemClock_Config(void);
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static void LCD_LL_ConvertLineToARGB8888(void *pSrc, void *pDst);
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static void CPU_CACHE_Enable(void);
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/* Private functions ---------------------------------------------------------*/
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/**
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* @brief Main program
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* @param None
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* @retval None
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*/
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int main(void)
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{
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uint32_t i;
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uint32_t *ptrLcd;
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/* Enable the CPU Cache */
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CPU_CACHE_Enable();
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/* STM32F7xx HAL library initialization:
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- Configure the Flash ART accelerator on ITCM interface
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- Systick timer is configured by default as source of time base, but user
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can eventually implement his proper time base source (a general purpose
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timer for example or other time source), keeping in mind that Time base
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duration should be kept 1ms since PPP_TIMEOUT_VALUEs are defined and
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handled in milliseconds basis.
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- Set NVIC Group Priority to 4
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- Low Level Initialization
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*/
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HAL_Init();
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/* Configure the system clock to 200 MHz */
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SystemClock_Config();
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/*##-1- Initialise the LCD #################################################*/
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BSP_LCD_Init();
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/* Init LCD screen buffer */
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ptrLcd = (uint32_t*)(LCD_FRAME_BUFFER);
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for (i=0; i<(BSP_LCD_GetXSize()*BSP_LCD_GetYSize()); i++)
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{
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ptrLcd[i]=0;
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}
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BSP_LCD_LayerDefaultInit(1, LCD_FRAME_BUFFER);
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/* Enable the LCD */
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BSP_LCD_DisplayOn();
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/* Select the LCD Foreground layer */
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BSP_LCD_SelectLayer(1);
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/* Set active window */
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BSP_LCD_SetLayerWindow(1, xoffset, yoffset, xsize, ysize);
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/*##-2- Camera Initialisation and start capture ############################*/
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/* Initialize the Camera */
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BSP_CAMERA_Init(resolution);
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/* Start the Camera Capture */
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BSP_CAMERA_ContinuousStart((uint8_t *)CAMERA_FRAME_BUFFER);
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while (1)
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{
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}
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}
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/**
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* @brief Camera line event callback
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* @param None
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* @retval None
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*/
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void BSP_CAMERA_LineEventCallback(void)
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{
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static uint32_t tmp, tmp2, counter;
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if(ysize > counter)
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{
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LCD_LL_ConvertLineToARGB8888((uint32_t *)(CAMERA_FRAME_BUFFER + tmp), (uint32_t *)(LCD_FRAME_BUFFER + tmp2));
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tmp = tmp + xsize*sizeof(uint16_t);
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tmp2 = tmp2 + xsize*sizeof(uint32_t);
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counter++;
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}
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else
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{
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tmp = 0;
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tmp2 = 0;
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counter = 0;
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}
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}
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/**
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* @brief Converts a line to an ARGB8888 pixel format.
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* @param pSrc: Pointer to source buffer
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* @param pDst: Output color
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* @param xSize: Buffer width
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* @param ColorMode: Input color mode
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* @retval None
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*/
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static void LCD_LL_ConvertLineToARGB8888(void *pSrc, void *pDst)
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{
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/* Enable DMA2D clock */
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__HAL_RCC_DMA2D_CLK_ENABLE();
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/* Configure the DMA2D Mode, Color Mode and output offset */
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hdma2d_eval.Init.Mode = DMA2D_M2M_PFC;
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hdma2d_eval.Init.ColorMode = DMA2D_OUTPUT_ARGB8888;
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hdma2d_eval.Init.OutputOffset = 0;
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/* Foreground Configuration */
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hdma2d_eval.LayerCfg[1].AlphaMode = DMA2D_NO_MODIF_ALPHA;
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hdma2d_eval.LayerCfg[1].InputAlpha = 0xFF;
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hdma2d_eval.LayerCfg[1].InputColorMode = DMA2D_INPUT_RGB565;
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hdma2d_eval.LayerCfg[1].InputOffset = 0;
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hdma2d_eval.Instance = DMA2D;
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/* DMA2D Initialization */
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if(HAL_DMA2D_Init(&hdma2d_eval) == HAL_OK)
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{
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if(HAL_DMA2D_ConfigLayer(&hdma2d_eval, 1) == HAL_OK)
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{
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if (HAL_DMA2D_Start(&hdma2d_eval, (uint32_t)pSrc, (uint32_t)pDst, xsize, 1) == HAL_OK)
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{
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/* Polling For DMA transfer */
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HAL_DMA2D_PollForTransfer(&hdma2d_eval, 10);
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}
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}
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}
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else
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{
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/* FatFs Initialization Error */
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while(1);
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}
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}
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/**
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* @brief System Clock Configuration
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* The system Clock is configured as follow :
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* System Clock source = PLL (HSE)
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* SYSCLK(Hz) = 200000000
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* HCLK(Hz) = 200000000
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* AHB Prescaler = 1
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* APB1 Prescaler = 4
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* APB2 Prescaler = 2
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* HSE Frequency(Hz) = 25000000
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* PLL_M = 25
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* PLL_N = 400
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* PLL_P = 2
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* PLL_Q = 8
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* VDD(V) = 3.3
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* Main regulator output voltage = Scale1 mode
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* Flash Latency(WS) = 6
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* @param None
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* @retval None
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*/
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void SystemClock_Config(void)
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{
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RCC_ClkInitTypeDef RCC_ClkInitStruct;
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RCC_OscInitTypeDef RCC_OscInitStruct;
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HAL_StatusTypeDef ret = HAL_OK;
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/* Enable HSE Oscillator and activate PLL with HSE as source */
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RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
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RCC_OscInitStruct.HSEState = RCC_HSE_ON;
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RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
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RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
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RCC_OscInitStruct.PLL.PLLM = 25;
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RCC_OscInitStruct.PLL.PLLN = 400;
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RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2;
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RCC_OscInitStruct.PLL.PLLQ = 8;
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ret = HAL_RCC_OscConfig(&RCC_OscInitStruct);
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if(ret != HAL_OK)
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{
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while(1) { ; }
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}
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/* Activate the OverDrive to reach the 200 MHz Frequency */
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ret = HAL_PWREx_EnableOverDrive();
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if(ret != HAL_OK)
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{
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while(1) { ; }
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}
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/* Select PLL as system clock source and configure the HCLK, PCLK1 and PCLK2 clocks dividers */
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RCC_ClkInitStruct.ClockType = (RCC_CLOCKTYPE_SYSCLK | RCC_CLOCKTYPE_HCLK | RCC_CLOCKTYPE_PCLK1 | RCC_CLOCKTYPE_PCLK2);
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RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
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RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
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RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV4;
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RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV2;
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ret = HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_6);
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if(ret != HAL_OK)
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{
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while(1) { ; }
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}
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}
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/**
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* @brief CPU L1-Cache enable.
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* @param None
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* @retval None
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*/
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static void CPU_CACHE_Enable(void)
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{
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/* Enable I-Cache */
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SCB_EnableICache();
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/* Enable D-Cache */
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SCB_EnableDCache();
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}
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#ifdef USE_FULL_ASSERT
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/**
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* @brief Reports the name of the source file and the source line number
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* where the assert_param error has occurred.
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* @param file: pointer to the source file name
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* @param line: assert_param error line source number
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* @retval None
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*/
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void assert_failed(uint8_t *file, uint32_t line)
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{
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/* User can add his own implementation to report the file name and line number,
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ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
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/* Infinite loop */
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while (1)
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{
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}
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}
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#endif
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/**
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* @}
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*/
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/**
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* @}
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*/
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/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
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