main.cpp

00001 #include "mbed.h"
00002 #include "stm32f769i_discovery_lcd.h"
00003 #include "stm32f769i_discovery_sd.h"
00004 
00005 int main()
00006 {
00007     uint8_t SD_state = MSD_OK;
00008     static uint8_t prev_status = 2;
00009 
00010     printf("\n\n SD EXAMPLE FOR DISCO-F769NI START:\n");
00011 
00012     /* Init LCD and display example information */
00013     BSP_LCD_Init();
00014     BSP_LCD_LayerDefaultInit(0, LCD_FB_START_ADDRESS);
00015     BSP_LCD_Clear(LCD_COLOR_WHITE);
00016     BSP_LCD_SetTextColor(LCD_COLOR_BLUE);
00017     BSP_LCD_FillRect(0, 0, BSP_LCD_GetXSize(), 40);
00018     BSP_LCD_SetTextColor(LCD_COLOR_WHITE);
00019     BSP_LCD_SetBackColor(LCD_COLOR_BLUE);
00020     BSP_LCD_SetFont(&Font24);
00021     BSP_LCD_DisplayStringAt(0, 0, (uint8_t *)"SD basic example", CENTER_MODE);
00022 
00023     /* SD init */
00024     SD_state = BSP_SD_Init();
00025     printf("BSP_SD_Init return %d\n", SD_state);
00026 
00027     if (SD_state != MSD_OK) {
00028         BSP_LCD_DisplayStringAt(20, 100, (uint8_t *)"SD shall be inserted before running test", LEFT_MODE);
00029 
00030     } else {
00031         BSP_LCD_DisplayStringAt(20, 100, (uint8_t *)"SD Initialization : OK", LEFT_MODE);
00032 
00033         SD_state = BSP_SD_Erase(0, (BLOCKSIZE * 50));
00034         /* Wait until SD card is ready to use for new operation */
00035         while (BSP_SD_GetCardState() != SD_TRANSFER_OK) {
00036         }
00037         if (SD_state != MSD_OK) {
00038             BSP_LCD_DisplayStringAt(20, 130, (uint8_t *)"SD ERASE : FAILED.", LEFT_MODE);
00039         } else {
00040             BSP_LCD_DisplayStringAt(20, 130, (uint8_t *)"SD ERASE : OK.", LEFT_MODE);
00041         }
00042     }
00043 
00044     BSP_LCD_DisplayStringAt(20, 250, (uint8_t *)"SD can be inserted or removed now", LEFT_MODE);
00045 
00046     while (1) {
00047         if (BSP_SD_IsDetected() != SD_PRESENT) {
00048             if (prev_status != SD_NOT_PRESENT) {
00049                 BSP_SD_Init();
00050                 prev_status = SD_NOT_PRESENT;
00051                 BSP_LCD_SetTextColor(LCD_COLOR_RED);
00052                 BSP_LCD_DisplayStringAt(20, BSP_LCD_GetYSize() - 30, (uint8_t *)"SD Not Connected", LEFT_MODE);
00053             }
00054         } else if (prev_status != SD_PRESENT) {
00055             BSP_LCD_SetTextColor(LCD_COLOR_GREEN);
00056             BSP_LCD_DisplayStringAt(20, BSP_LCD_GetYSize() - 30, (uint8_t *)"SD Connected    ", LEFT_MODE);
00057             prev_status = SD_PRESENT;
00058         }
00059 
00060     }
00061 }