SD card use for DISCO-F469NI example
Dependencies: mbed SD_DISCO_F469NI BSP_DISCO_F469NI
main.cpp@2:e2a46f444032, 2019-02-19 (annotated)
- Committer:
- Stefan_Sofijanic
- Date:
- Tue Feb 19 16:44:34 2019 +0000
- Revision:
- 2:e2a46f444032
- Parent:
- 1:06ab94bddfd9
SD card use for DISCO-F469NI example v1
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
Stefan_Sofijanic | 0:2fb6ef328490 | 1 | #include "mbed.h" |
Stefan_Sofijanic | 0:2fb6ef328490 | 2 | #include "SD_DISCO_F469NI.h" |
Stefan_Sofijanic | 0:2fb6ef328490 | 3 | |
Stefan_Sofijanic | 0:2fb6ef328490 | 4 | SD_DISCO_F469NI sd; |
Stefan_Sofijanic | 0:2fb6ef328490 | 5 | |
Stefan_Sofijanic | 0:2fb6ef328490 | 6 | DigitalOut led_green(LED1); |
Stefan_Sofijanic | 0:2fb6ef328490 | 7 | DigitalOut led_red(LED2); |
Stefan_Sofijanic | 0:2fb6ef328490 | 8 | |
Stefan_Sofijanic | 0:2fb6ef328490 | 9 | Serial pc(USBTX, USBRX); |
Stefan_Sofijanic | 0:2fb6ef328490 | 10 | |
Stefan_Sofijanic | 0:2fb6ef328490 | 11 | #define BLOCK_START_ADDR 0 /* Block start address */ |
Stefan_Sofijanic | 0:2fb6ef328490 | 12 | #define NUM_OF_BLOCKS 5 /* Total number of blocks */ |
Stefan_Sofijanic | 0:2fb6ef328490 | 13 | #define BUFFER_WORDS_SIZE ((512 * NUM_OF_BLOCKS) >> 2) /* Total data size in bytes */ |
Stefan_Sofijanic | 0:2fb6ef328490 | 14 | |
Stefan_Sofijanic | 0:2fb6ef328490 | 15 | uint32_t aTxBuffer[BUFFER_WORDS_SIZE]; |
Stefan_Sofijanic | 0:2fb6ef328490 | 16 | uint32_t aRxBuffer[BUFFER_WORDS_SIZE]; |
Stefan_Sofijanic | 0:2fb6ef328490 | 17 | /* Private function prototypes -----------------------------------------------*/ |
Stefan_Sofijanic | 0:2fb6ef328490 | 18 | void SD_main_test(void); |
Stefan_Sofijanic | 0:2fb6ef328490 | 19 | void SD_Detection(void); |
Stefan_Sofijanic | 0:2fb6ef328490 | 20 | |
Stefan_Sofijanic | 0:2fb6ef328490 | 21 | static void Fill_Buffer(uint32_t *pBuffer, uint32_t uwBufferLenght, uint32_t uwOffset); |
Stefan_Sofijanic | 0:2fb6ef328490 | 22 | static uint8_t Buffercmp(uint32_t* pBuffer1, uint32_t* pBuffer2, uint16_t BufferLength); |
Stefan_Sofijanic | 0:2fb6ef328490 | 23 | |
Stefan_Sofijanic | 0:2fb6ef328490 | 24 | int main() { |
Stefan_Sofijanic | 0:2fb6ef328490 | 25 | uint8_t SD_state = MSD_OK; |
Stefan_Sofijanic | 0:2fb6ef328490 | 26 | pc.printf("SD\n"); |
Stefan_Sofijanic | 0:2fb6ef328490 | 27 | pc.printf("This example shows how to write\n"); |
Stefan_Sofijanic | 0:2fb6ef328490 | 28 | pc.printf("and read data on the microSD and also\n"); |
Stefan_Sofijanic | 0:2fb6ef328490 | 29 | pc.printf("how to detect the presence of the card\n"); |
Stefan_Sofijanic | 0:2fb6ef328490 | 30 | led_red = 0; |
Stefan_Sofijanic | 0:2fb6ef328490 | 31 | |
Stefan_Sofijanic | 0:2fb6ef328490 | 32 | SD_state = sd.Init(); |
Stefan_Sofijanic | 0:2fb6ef328490 | 33 | if(SD_state != MSD_OK){ |
Stefan_Sofijanic | 0:2fb6ef328490 | 34 | if(SD_state == MSD_ERROR_SD_NOT_PRESENT){ |
Stefan_Sofijanic | 0:2fb6ef328490 | 35 | pc.printf("SD shall be inserted before running test\n"); |
Stefan_Sofijanic | 0:2fb6ef328490 | 36 | } else { |
Stefan_Sofijanic | 0:2fb6ef328490 | 37 | pc.printf("SD Initialization : FAIL.\n"); |
Stefan_Sofijanic | 0:2fb6ef328490 | 38 | } |
Stefan_Sofijanic | 0:2fb6ef328490 | 39 | pc.printf("SD Test Aborted.\n"); |
Stefan_Sofijanic | 0:2fb6ef328490 | 40 | } else { |
Stefan_Sofijanic | 0:2fb6ef328490 | 41 | pc.printf("SD Initialization : OK.\n"); |
Stefan_Sofijanic | 0:2fb6ef328490 | 42 | |
Stefan_Sofijanic | 0:2fb6ef328490 | 43 | if(sd.Erase(BLOCK_START_ADDR, (512 * NUM_OF_BLOCKS)) != MSD_OK){ |
Stefan_Sofijanic | 0:2fb6ef328490 | 44 | pc.printf("SD ERASE : FAILED.\n"); |
Stefan_Sofijanic | 0:2fb6ef328490 | 45 | pc.printf("SD Test Aborted.\n"); |
Stefan_Sofijanic | 0:2fb6ef328490 | 46 | } else { |
Stefan_Sofijanic | 0:2fb6ef328490 | 47 | pc.printf("SD ERASE : OK.\n"); |
Stefan_Sofijanic | 0:2fb6ef328490 | 48 | |
Stefan_Sofijanic | 0:2fb6ef328490 | 49 | /* Fill the buffer to write */ |
Stefan_Sofijanic | 0:2fb6ef328490 | 50 | Fill_Buffer(aTxBuffer, BUFFER_WORDS_SIZE, 0x22FF); |
Stefan_Sofijanic | 0:2fb6ef328490 | 51 | |
Stefan_Sofijanic | 0:2fb6ef328490 | 52 | if(sd.WriteBlocks(aTxBuffer, BLOCK_START_ADDR, NUM_OF_BLOCKS, SD_DATATIMEOUT) != MSD_OK){ |
Stefan_Sofijanic | 0:2fb6ef328490 | 53 | pc.printf("SD WRITE : FAILED.\n"); |
Stefan_Sofijanic | 0:2fb6ef328490 | 54 | pc.printf("SD Test Aborted.\n"); |
Stefan_Sofijanic | 0:2fb6ef328490 | 55 | } else { |
Stefan_Sofijanic | 0:2fb6ef328490 | 56 | pc.printf("SD WRITE : OK.\n"); |
Stefan_Sofijanic | 0:2fb6ef328490 | 57 | |
Stefan_Sofijanic | 0:2fb6ef328490 | 58 | if(sd.ReadBlocks(aRxBuffer, BLOCK_START_ADDR, NUM_OF_BLOCKS, SD_DATATIMEOUT)!= MSD_OK){ |
Stefan_Sofijanic | 0:2fb6ef328490 | 59 | pc.printf("SD READ : FAILED.\n"); |
Stefan_Sofijanic | 0:2fb6ef328490 | 60 | pc.printf("SD Test Aborted.\n"); |
Stefan_Sofijanic | 0:2fb6ef328490 | 61 | } else { |
Stefan_Sofijanic | 0:2fb6ef328490 | 62 | pc.printf("SD READ : OK.\n"); |
Stefan_Sofijanic | 0:2fb6ef328490 | 63 | if(Buffercmp(aTxBuffer, aRxBuffer, BUFFER_WORDS_SIZE) > 0){ |
Stefan_Sofijanic | 0:2fb6ef328490 | 64 | pc.printf("SD COMPARE : FAILED.\n"); |
Stefan_Sofijanic | 0:2fb6ef328490 | 65 | pc.printf("SD Test Aborted.\n"); |
Stefan_Sofijanic | 0:2fb6ef328490 | 66 | } else { |
Stefan_Sofijanic | 0:2fb6ef328490 | 67 | pc.printf("SD Test : OK.\n"); |
Stefan_Sofijanic | 0:2fb6ef328490 | 68 | pc.printf("SD can be removed.\n"); |
Stefan_Sofijanic | 0:2fb6ef328490 | 69 | } |
Stefan_Sofijanic | 0:2fb6ef328490 | 70 | } |
Stefan_Sofijanic | 0:2fb6ef328490 | 71 | } |
Stefan_Sofijanic | 0:2fb6ef328490 | 72 | } |
Stefan_Sofijanic | 0:2fb6ef328490 | 73 | } |
Stefan_Sofijanic | 0:2fb6ef328490 | 74 | |
Stefan_Sofijanic | 1:06ab94bddfd9 | 75 | // while (1) {} |
Stefan_Sofijanic | 0:2fb6ef328490 | 76 | } |
Stefan_Sofijanic | 0:2fb6ef328490 | 77 | |
Stefan_Sofijanic | 0:2fb6ef328490 | 78 | /** |
Stefan_Sofijanic | 0:2fb6ef328490 | 79 | * @brief Fills buffer with user predefined data. |
Stefan_Sofijanic | 0:2fb6ef328490 | 80 | * @param pBuffer: pointer on the buffer to fill |
Stefan_Sofijanic | 0:2fb6ef328490 | 81 | * @param uwBufferLenght: size of the buffer to fill |
Stefan_Sofijanic | 0:2fb6ef328490 | 82 | * @param uwOffset: first value to fill on the buffer |
Stefan_Sofijanic | 0:2fb6ef328490 | 83 | * @retval None |
Stefan_Sofijanic | 0:2fb6ef328490 | 84 | */ |
Stefan_Sofijanic | 0:2fb6ef328490 | 85 | static void Fill_Buffer(uint32_t *pBuffer, uint32_t uwBufferLength, uint32_t uwOffset) { |
Stefan_Sofijanic | 0:2fb6ef328490 | 86 | uint32_t tmpIndex = 0; |
Stefan_Sofijanic | 0:2fb6ef328490 | 87 | |
Stefan_Sofijanic | 0:2fb6ef328490 | 88 | /* Put in global buffer different values */ |
Stefan_Sofijanic | 0:2fb6ef328490 | 89 | for (tmpIndex = 0; tmpIndex < uwBufferLength; tmpIndex++ ){ |
Stefan_Sofijanic | 0:2fb6ef328490 | 90 | pBuffer[tmpIndex] = tmpIndex + uwOffset; |
Stefan_Sofijanic | 0:2fb6ef328490 | 91 | } |
Stefan_Sofijanic | 0:2fb6ef328490 | 92 | } |
Stefan_Sofijanic | 0:2fb6ef328490 | 93 | |
Stefan_Sofijanic | 0:2fb6ef328490 | 94 | /** |
Stefan_Sofijanic | 0:2fb6ef328490 | 95 | * @brief Compares two buffers. |
Stefan_Sofijanic | 0:2fb6ef328490 | 96 | * @param pBuffer1, pBuffer2: buffers to be compared. |
Stefan_Sofijanic | 0:2fb6ef328490 | 97 | * @param BufferLength: buffer's length |
Stefan_Sofijanic | 0:2fb6ef328490 | 98 | * @retval 1: pBuffer identical to pBuffer1 |
Stefan_Sofijanic | 0:2fb6ef328490 | 99 | * 0: pBuffer differs from pBuffer1 |
Stefan_Sofijanic | 0:2fb6ef328490 | 100 | */ |
Stefan_Sofijanic | 0:2fb6ef328490 | 101 | static uint8_t Buffercmp(uint32_t* pBuffer1, uint32_t* pBuffer2, uint16_t BufferLength) { |
Stefan_Sofijanic | 0:2fb6ef328490 | 102 | while (BufferLength--) { |
Stefan_Sofijanic | 0:2fb6ef328490 | 103 | if (*pBuffer1 != *pBuffer2) { |
Stefan_Sofijanic | 0:2fb6ef328490 | 104 | return 1; |
Stefan_Sofijanic | 0:2fb6ef328490 | 105 | } |
Stefan_Sofijanic | 0:2fb6ef328490 | 106 | |
Stefan_Sofijanic | 0:2fb6ef328490 | 107 | pBuffer1++; |
Stefan_Sofijanic | 0:2fb6ef328490 | 108 | pBuffer2++; |
Stefan_Sofijanic | 0:2fb6ef328490 | 109 | } |
Stefan_Sofijanic | 0:2fb6ef328490 | 110 | |
Stefan_Sofijanic | 0:2fb6ef328490 | 111 | return 0; |
Stefan_Sofijanic | 0:2fb6ef328490 | 112 | } |