mirror of
https://github.com/STMicroelectronics/STM32CubeF7.git
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321 lines
11 KiB
C
321 lines
11 KiB
C
/**
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******************************************************************************
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* @file LibJPEG/LibJPEG_Decoding/Src/main.c
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* @author MCD Application Team
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* @brief This sample code shows how to use FatFs with uSD card drive.
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******************************************************************************
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* @attention
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*
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* <h2><center>© Copyright (c) 2016 STMicroelectronics International N.V.
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* All rights reserved.</center></h2>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted, provided that the following conditions are met:
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*
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* 1. Redistribution of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* 3. Neither the name of STMicroelectronics nor the names of other
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* contributors to this software may be used to endorse or promote products
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* derived from this software without specific written permission.
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* 4. This software, including modifications and/or derivative works of this
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* software, must execute solely and exclusively on microcontroller or
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* microprocessor devices manufactured by or for STMicroelectronics.
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* 5. Redistribution and use of this software other than as permitted under
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* this license is void and will automatically terminate your rights under
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* this license.
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*
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* THIS SOFTWARE IS PROVIDED BY STMICROELECTRONICS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS, IMPLIED OR STATUTORY WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
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* PARTICULAR PURPOSE AND NON-INFRINGEMENT OF THIRD PARTY INTELLECTUAL PROPERTY
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* RIGHTS ARE DISCLAIMED TO THE FULLEST EXTENT PERMITTED BY LAW. IN NO EVENT
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* SHALL STMICROELECTRONICS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
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* OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
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* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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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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/* Private typedef -----------------------------------------------------------*/
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/* Private define ------------------------------------------------------------*/
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/* Private macro -------------------------------------------------------------*/
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/* Private variables ---------------------------------------------------------*/
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FATFS SDFatFs; /* File system object for SD card logical drive */
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FIL MyFile; /* File object */
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char SDPath[4]; /* SD card logical drive path */
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RGB_typedef *RGB_matrix;
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uint8_t _aucLine[2048];
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uint32_t offset = 0;
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uint32_t line_counter = 239;
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/* Private function prototypes -----------------------------------------------*/
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static void SystemClock_Config(void);
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static void LCD_Config(void);
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static uint8_t Jpeg_CallbackFunction(uint8_t* Row, uint32_t DataLength);
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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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/* 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- LCD Configuration ##################################################*/
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LCD_Config();
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/*##-2- Link the micro SD disk I/O driver ##################################*/
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if(FATFS_LinkDriver(&SD_Driver, SDPath) == 0)
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{
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/*##-3- Register the file system object to the FatFs module ##############*/
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if(f_mount(&SDFatFs, (TCHAR const*)SDPath, 0) == FR_OK)
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{
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/*##-4- Open the JPG image with read access ############################*/
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if(f_open(&MyFile, "image.jpg", FA_READ) == FR_OK)
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{
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}
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}
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}
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/*##-5- Decode the jpg image file ##########################################*/
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jpeg_decode(&MyFile, IMAGE_WIDTH, _aucLine, Jpeg_CallbackFunction);
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/*##-4- Close the JPG image ################################################*/
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f_close(&MyFile);
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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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/**
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* @brief LCD Configuration.
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* @Param None
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* @retval None
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*/
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static void LCD_Config(void)
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{
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/* Initialize the LCD */
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BSP_LCD_Init();
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/* Background Layer Initialization */
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BSP_LCD_LayerDefaultInit(0, LCD_FRAME_BUFFER);
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/* Set Foreground Layer */
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BSP_LCD_SelectLayer(0);
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/* Enable the LCD */
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BSP_LCD_DisplayOn();
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/* Set Display window */
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BSP_LCD_SetLayerWindow(0, 0, 0, IMAGE_WIDTH, IMAGE_HEIGHT);
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/* Clear the LCD Background layer */
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BSP_LCD_Clear(LCD_COLOR_WHITE);
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}
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/**
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* @brief Copy decompressed data to display buffer.
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* @param Row: Output row buffer
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* @param DataLength: Row width in output buffer
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* @retval None
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*/
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static uint8_t Jpeg_CallbackFunction(uint8_t* Row, uint32_t DataLength)
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{
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#ifdef USE_DMA2D
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static DMA2D_HandleTypeDef hdma2d_eval;
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offset = (LCD_FRAME_BUFFER + (IMAGE_WIDTH * (IMAGE_HEIGHT - line_counter - 1) * 4));
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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_RGB888;
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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)Row, (uint32_t)offset, IMAGE_WIDTH, 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 /* DMA2D not used */
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RGB_matrix = (RGB_typedef*)Row;
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uint32_t ARGB32Buffer[IMAGE_WIDTH];
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uint32_t counter = 0;
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for(counter = 0; counter < IMAGE_WIDTH; counter++)
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{
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ARGB32Buffer[counter] = (uint32_t)
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(
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((RGB_matrix[counter].B << 16)|
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(RGB_matrix[counter].G << 8)|
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(RGB_matrix[counter].R) | 0xFF000000)
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);
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*(__IO uint32_t *)(LCD_FRAME_BUFFER + (counter*4) + (IMAGE_WIDTH * (IMAGE_HEIGHT - line_counter - 1) * 4)) = ARGB32Buffer[counter];
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}
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#endif
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#ifdef SWAP_RB
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uint32_t pixel = 0, width_counter, result = 0, result1 = 0;
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for(width_counter = 0; width_counter < IMAGE_WIDTH; width_counter++)
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{
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pixel = *(__IO uint32_t *)(LCD_FRAME_BUFFER + (width_counter*4) + (IMAGE_WIDTH * (IMAGE_HEIGHT - line_counter - 1) * 4));
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result1 = (((pixel & 0x00FF0000) >> 16) | ((pixel & 0x000000FF) << 16));
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pixel = pixel & 0xFF00FF00;
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result = (result1 | pixel);
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*(__IO uint32_t *)(LCD_FRAME_BUFFER + (width_counter*4) + (IMAGE_WIDTH * (IMAGE_HEIGHT - line_counter - 1) * 4)) = result;
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}
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#endif
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line_counter--;
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return 0;
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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 = 432
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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) = 7
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* @param None
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* @retval None
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*/
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static 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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#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 /* USE_FULL_ASSERT */
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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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/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
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