SD card use for DISCO_F469NI basic example
Dependencies: BSP_DISCO_F469NI SD_DISCO_F469NI mbed
main.cpp@3:336723c7a78c, 2017-07-05 (annotated)
- Committer:
- jeromecoutant
- Date:
- Wed Jul 05 06:43:53 2017 +0000
- Revision:
- 3:336723c7a78c
- Parent:
- 2:fdce3ea5ef35
Update with MBED rev145
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
adustm | 0:354f8b7c3755 | 1 | #include "mbed.h" |
adustm | 0:354f8b7c3755 | 2 | #include "SD_DISCO_F469NI.h" |
adustm | 0:354f8b7c3755 | 3 | |
adustm | 0:354f8b7c3755 | 4 | SD_DISCO_F469NI sd; |
adustm | 0:354f8b7c3755 | 5 | |
adustm | 0:354f8b7c3755 | 6 | DigitalOut led_green(LED1); |
adustm | 0:354f8b7c3755 | 7 | DigitalOut led_red(LED2); |
adustm | 0:354f8b7c3755 | 8 | |
adustm | 0:354f8b7c3755 | 9 | Serial pc(USBTX, USBRX); |
adustm | 0:354f8b7c3755 | 10 | |
adustm | 0:354f8b7c3755 | 11 | #define BLOCK_START_ADDR 0 /* Block start address */ |
adustm | 0:354f8b7c3755 | 12 | #define NUM_OF_BLOCKS 5 /* Total number of blocks */ |
Jerome Coutant
2:fdce3ea5ef35
|
13
|
#define BUFFER_WORDS_SIZE ((512 * NUM_OF_BLOCKS) >> 2) /* Total data size in bytes */
|
|
adustm | 0:354f8b7c3755 | 14 | |
adustm | 0:354f8b7c3755 | 15 | uint32_t aTxBuffer[BUFFER_WORDS_SIZE]; |
adustm | 0:354f8b7c3755 | 16 | uint32_t aRxBuffer[BUFFER_WORDS_SIZE]; |
adustm | 0:354f8b7c3755 | 17 | /* Private function prototypes -----------------------------------------------*/ |
adustm | 0:354f8b7c3755 | 18 | void SD_main_test(void); |
adustm | 0:354f8b7c3755 | 19 | void SD_Detection(void); |
adustm | 0:354f8b7c3755 | 20 | |
adustm | 0:354f8b7c3755 | 21 | static void Fill_Buffer(uint32_t *pBuffer, uint32_t uwBufferLenght, uint32_t uwOffset); |
adustm | 0:354f8b7c3755 | 22 | static uint8_t Buffercmp(uint32_t* pBuffer1, uint32_t* pBuffer2, uint16_t BufferLength); |
adustm | 0:354f8b7c3755 | 23 | |
adustm | 0:354f8b7c3755 | 24 | int main() |
adustm | 0:354f8b7c3755 | 25 | { |
Jerome Coutant
2:fdce3ea5ef35
|
26
|
uint8_t SD_state = MSD_OK;
|
|
adustm | 0:354f8b7c3755 | 27 | pc.printf("SD\n"); |
adustm | 0:354f8b7c3755 | 28 | pc.printf("This example shows how to write\n"); |
adustm | 0:354f8b7c3755 | 29 | pc.printf("and read data on the microSD and also\n"); |
adustm | 0:354f8b7c3755 | 30 | pc.printf("how to detect the presence of the card\n"); |
adustm | 0:354f8b7c3755 | 31 | led_red = 0; |
adustm | 0:354f8b7c3755 | 32 | |
adustm | 0:354f8b7c3755 | 33 | SD_state = sd.Init(); |
Jerome Coutant
2:fdce3ea5ef35
|
34
|
if(SD_state != MSD_OK){
|
|
adustm | 0:354f8b7c3755 | 35 | if(SD_state == MSD_ERROR_SD_NOT_PRESENT){ |
adustm | 0:354f8b7c3755 | 36 | pc.printf("SD shall be inserted before running test\n"); |
adustm | 0:354f8b7c3755 | 37 | } else { |
adustm | 0:354f8b7c3755 | 38 | pc.printf("SD Initialization : FAIL.\n"); |
adustm | 0:354f8b7c3755 | 39 | } |
adustm | 0:354f8b7c3755 | 40 | pc.printf("SD Test Aborted.\n"); |
adustm | 0:354f8b7c3755 | 41 | } else { |
adustm | 0:354f8b7c3755 | 42 | pc.printf("SD Initialization : OK.\n"); |
adustm | 0:354f8b7c3755 | 43 | |
Jerome Coutant
2:fdce3ea5ef35
|
44
|
if(sd.Erase(BLOCK_START_ADDR, (512 * NUM_OF_BLOCKS)) != MSD_OK){
|
|
adustm | 0:354f8b7c3755 | 45 | pc.printf("SD ERASE : FAILED.\n"); |
adustm | 0:354f8b7c3755 | 46 | pc.printf("SD Test Aborted.\n"); |
adustm | 0:354f8b7c3755 | 47 | } else { |
adustm | 0:354f8b7c3755 | 48 | pc.printf("SD ERASE : OK.\n"); |
adustm | 0:354f8b7c3755 | 49 | |
adustm | 0:354f8b7c3755 | 50 | /* Fill the buffer to write */ |
adustm | 0:354f8b7c3755 | 51 | Fill_Buffer(aTxBuffer, BUFFER_WORDS_SIZE, 0x22FF); |
adustm | 0:354f8b7c3755 | 52 | |
Jerome Coutant
2:fdce3ea5ef35
|
53
|
if(sd.WriteBlocks(aTxBuffer, BLOCK_START_ADDR, NUM_OF_BLOCKS, SD_DATATIMEOUT) != MSD_OK){
|
|
adustm | 0:354f8b7c3755 | 54 | pc.printf("SD WRITE : FAILED.\n"); |
adustm | 0:354f8b7c3755 | 55 | pc.printf("SD Test Aborted.\n"); |
adustm | 0:354f8b7c3755 | 56 | } else { |
adustm | 0:354f8b7c3755 | 57 | pc.printf("SD WRITE : OK.\n"); |
adustm | 0:354f8b7c3755 | 58 | |
Jerome Coutant
2:fdce3ea5ef35
|
59
|
if(sd.ReadBlocks(aRxBuffer, BLOCK_START_ADDR, NUM_OF_BLOCKS, SD_DATATIMEOUT)!= MSD_OK){
|
|
adustm | 0:354f8b7c3755 | 60 | pc.printf("SD READ : FAILED.\n"); |
adustm | 0:354f8b7c3755 | 61 | pc.printf("SD Test Aborted.\n"); |
adustm | 0:354f8b7c3755 | 62 | } else { |
adustm | 0:354f8b7c3755 | 63 | pc.printf("SD READ : OK.\n"); |
adustm | 0:354f8b7c3755 | 64 | if(Buffercmp(aTxBuffer, aRxBuffer, BUFFER_WORDS_SIZE) > 0){ |
adustm | 0:354f8b7c3755 | 65 | pc.printf("SD COMPARE : FAILED.\n"); |
adustm | 0:354f8b7c3755 | 66 | pc.printf("SD Test Aborted.\n"); |
adustm | 0:354f8b7c3755 | 67 | } else { |
adustm | 0:354f8b7c3755 | 68 | pc.printf("SD Test : OK.\n"); |
adustm | 0:354f8b7c3755 | 69 | pc.printf("SD can be removed.\n"); |
adustm | 0:354f8b7c3755 | 70 | } |
adustm | 0:354f8b7c3755 | 71 | } |
adustm | 0:354f8b7c3755 | 72 | } |
adustm | 0:354f8b7c3755 | 73 | } |
adustm | 0:354f8b7c3755 | 74 | } |
adustm | 0:354f8b7c3755 | 75 | |
adustm | 0:354f8b7c3755 | 76 | while (1) { |
adustm | 0:354f8b7c3755 | 77 | } |
adustm | 0:354f8b7c3755 | 78 | } |
adustm | 0:354f8b7c3755 | 79 | |
adustm | 0:354f8b7c3755 | 80 | /** |
adustm | 0:354f8b7c3755 | 81 | * @brief Fills buffer with user predefined data. |
adustm | 0:354f8b7c3755 | 82 | * @param pBuffer: pointer on the buffer to fill |
adustm | 0:354f8b7c3755 | 83 | * @param uwBufferLenght: size of the buffer to fill |
adustm | 0:354f8b7c3755 | 84 | * @param uwOffset: first value to fill on the buffer |
adustm | 0:354f8b7c3755 | 85 | * @retval None |
adustm | 0:354f8b7c3755 | 86 | */ |
adustm | 0:354f8b7c3755 | 87 | static void Fill_Buffer(uint32_t *pBuffer, uint32_t uwBufferLength, uint32_t uwOffset) |
adustm | 0:354f8b7c3755 | 88 | { |
adustm | 0:354f8b7c3755 | 89 | uint32_t tmpIndex = 0; |
adustm | 0:354f8b7c3755 | 90 | |
adustm | 0:354f8b7c3755 | 91 | /* Put in global buffer different values */ |
adustm | 0:354f8b7c3755 | 92 | for (tmpIndex = 0; tmpIndex < uwBufferLength; tmpIndex++ ) |
adustm | 0:354f8b7c3755 | 93 | { |
adustm | 0:354f8b7c3755 | 94 | pBuffer[tmpIndex] = tmpIndex + uwOffset; |
adustm | 0:354f8b7c3755 | 95 | } |
adustm | 0:354f8b7c3755 | 96 | } |
adustm | 0:354f8b7c3755 | 97 | |
adustm | 0:354f8b7c3755 | 98 | /** |
adustm | 0:354f8b7c3755 | 99 | * @brief Compares two buffers. |
adustm | 0:354f8b7c3755 | 100 | * @param pBuffer1, pBuffer2: buffers to be compared. |
adustm | 0:354f8b7c3755 | 101 | * @param BufferLength: buffer's length |
adustm | 0:354f8b7c3755 | 102 | * @retval 1: pBuffer identical to pBuffer1 |
adustm | 0:354f8b7c3755 | 103 | * 0: pBuffer differs from pBuffer1 |
adustm | 0:354f8b7c3755 | 104 | */ |
adustm | 0:354f8b7c3755 | 105 | static uint8_t Buffercmp(uint32_t* pBuffer1, uint32_t* pBuffer2, uint16_t BufferLength) |
adustm | 0:354f8b7c3755 | 106 | { |
adustm | 0:354f8b7c3755 | 107 | while (BufferLength--) |
adustm | 0:354f8b7c3755 | 108 | { |
adustm | 0:354f8b7c3755 | 109 | if (*pBuffer1 != *pBuffer2) |
adustm | 0:354f8b7c3755 | 110 | { |
adustm | 0:354f8b7c3755 | 111 | return 1; |
adustm | 0:354f8b7c3755 | 112 | } |
adustm | 0:354f8b7c3755 | 113 | |
adustm | 0:354f8b7c3755 | 114 | pBuffer1++; |
adustm | 0:354f8b7c3755 | 115 | pBuffer2++; |
adustm | 0:354f8b7c3755 | 116 | } |
adustm | 0:354f8b7c3755 | 117 | |
adustm | 0:354f8b7c3755 | 118 | return 0; |
adustm | 0:354f8b7c3755 | 119 | } |