test for sd card
Dependencies: SDFileSystem mbed
Fork of SDFileSystem_HelloWorld by
main.cpp@26:280dfa8b03ac, 2018-03-29 (annotated)
- Committer:
- pes3
- Date:
- Thu Mar 29 14:49:49 2018 +0000
- Revision:
- 26:280dfa8b03ac
- Parent:
- 20:ec1c4f02d50e
Storage;
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
neilt6 | 0:8f2b6eed2a9d | 1 | #include "mbed.h" |
neilt6 | 0:8f2b6eed2a9d | 2 | #include "SDFileSystem.h" |
neilt6 | 0:8f2b6eed2a9d | 3 | |
neilt6 | 10:ae649a596123 | 4 | Timer timer; |
pes3 | 26:280dfa8b03ac | 5 | |
pes3 | 26:280dfa8b03ac | 6 | DigitalIn button(PC_13, PullUp); |
pes3 | 26:280dfa8b03ac | 7 | |
pes3 | 26:280dfa8b03ac | 8 | SDFileSystem sd(PA_7, PA_6, PA_5, PB_6, "sd", PA_8, SDFileSystem::SWITCH_NONE, 25000000); |
neilt6 | 10:ae649a596123 | 9 | char buffer[4096]; |
neilt6 | 10:ae649a596123 | 10 | |
neilt6 | 10:ae649a596123 | 11 | void writeTest() |
neilt6 | 10:ae649a596123 | 12 | { |
neilt6 | 10:ae649a596123 | 13 | //Test write performance by creating a 1MB file |
neilt6 | 10:ae649a596123 | 14 | printf("Testing %iB write performance...", sizeof(buffer)); |
neilt6 | 10:ae649a596123 | 15 | FileHandle* file = sd.open("Test File.bin", O_WRONLY | O_CREAT | O_TRUNC); |
neilt6 | 10:ae649a596123 | 16 | if (file != NULL) { |
neilt6 | 10:ae649a596123 | 17 | timer.start(); |
neilt6 | 10:ae649a596123 | 18 | for (int i = 0; i < (1048576 / sizeof(buffer)); i++) { |
neilt6 | 10:ae649a596123 | 19 | if (file->write(buffer, sizeof(buffer)) != sizeof(buffer)) { |
neilt6 | 10:ae649a596123 | 20 | timer.stop(); |
neilt6 | 10:ae649a596123 | 21 | printf("write error!\n"); |
neilt6 | 10:ae649a596123 | 22 | timer.reset(); |
neilt6 | 10:ae649a596123 | 23 | return; |
neilt6 | 10:ae649a596123 | 24 | } |
neilt6 | 10:ae649a596123 | 25 | } |
neilt6 | 10:ae649a596123 | 26 | timer.stop(); |
neilt6 | 10:ae649a596123 | 27 | if (file->close()) |
neilt6 | 10:ae649a596123 | 28 | printf("failed to close file!\n"); |
neilt6 | 10:ae649a596123 | 29 | else |
neilt6 | 10:ae649a596123 | 30 | printf("done!\n\tResult: %.2fKB/s\n", 1024 / (timer.read_us() / 1000000.0)); |
neilt6 | 10:ae649a596123 | 31 | timer.reset(); |
neilt6 | 10:ae649a596123 | 32 | } else { |
neilt6 | 10:ae649a596123 | 33 | printf("failed to create file!\n"); |
neilt6 | 10:ae649a596123 | 34 | } |
neilt6 | 10:ae649a596123 | 35 | } |
neilt6 | 10:ae649a596123 | 36 | |
neilt6 | 10:ae649a596123 | 37 | void readTest() |
neilt6 | 10:ae649a596123 | 38 | { |
neilt6 | 10:ae649a596123 | 39 | //Test read performance by reading the 1MB file created by writeTest() |
neilt6 | 10:ae649a596123 | 40 | printf("Testing %iB read performance...", sizeof(buffer)); |
neilt6 | 10:ae649a596123 | 41 | FileHandle* file = sd.open("Test File.bin", O_RDONLY); |
neilt6 | 10:ae649a596123 | 42 | if (file != NULL) { |
neilt6 | 10:ae649a596123 | 43 | timer.start(); |
neilt6 | 12:bd8b17cd6a7b | 44 | int iterations = 0; |
neilt6 | 12:bd8b17cd6a7b | 45 | while (file->read(buffer, sizeof(buffer)) == sizeof(buffer)) |
neilt6 | 12:bd8b17cd6a7b | 46 | iterations++; |
neilt6 | 10:ae649a596123 | 47 | timer.stop(); |
neilt6 | 12:bd8b17cd6a7b | 48 | if (iterations != (1048576 / sizeof(buffer))) |
neilt6 | 12:bd8b17cd6a7b | 49 | printf("read error!\n"); |
neilt6 | 12:bd8b17cd6a7b | 50 | else if (file->close()) |
neilt6 | 10:ae649a596123 | 51 | printf("failed to close file!\n"); |
neilt6 | 12:bd8b17cd6a7b | 52 | else if (sd.remove("Test File.bin")) |
neilt6 | 12:bd8b17cd6a7b | 53 | printf("failed to delete file!\n"); |
neilt6 | 12:bd8b17cd6a7b | 54 | else |
neilt6 | 12:bd8b17cd6a7b | 55 | printf("done!\n\tResult: %.2fKB/s\n", 1024 / (timer.read_us() / 1000000.0)); |
neilt6 | 10:ae649a596123 | 56 | timer.reset(); |
neilt6 | 10:ae649a596123 | 57 | } else { |
neilt6 | 10:ae649a596123 | 58 | printf("failed to open file!\n"); |
neilt6 | 10:ae649a596123 | 59 | } |
neilt6 | 10:ae649a596123 | 60 | } |
neilt6 | 0:8f2b6eed2a9d | 61 | |
neilt6 | 0:8f2b6eed2a9d | 62 | int main() |
neilt6 | 0:8f2b6eed2a9d | 63 | { |
neilt6 | 12:bd8b17cd6a7b | 64 | //Configure CRC, large frames, and write validation |
neilt6 | 10:ae649a596123 | 65 | sd.crc(true); |
neilt6 | 7:17ca3091939f | 66 | sd.large_frames(true); |
neilt6 | 12:bd8b17cd6a7b | 67 | sd.write_validation(true); |
neilt6 | 7:17ca3091939f | 68 | |
neilt6 | 10:ae649a596123 | 69 | //Fill the buffer with random data for the write test |
neilt6 | 10:ae649a596123 | 70 | srand(time(NULL)); |
neilt6 | 10:ae649a596123 | 71 | for (int i = 0; i < sizeof(buffer); i++) |
neilt6 | 10:ae649a596123 | 72 | buffer[i] = rand(); |
neilt6 | 10:ae649a596123 | 73 | |
neilt6 | 0:8f2b6eed2a9d | 74 | while(1) { |
neilt6 | 17:e5b7469082c8 | 75 | //Simple button debouncing |
neilt6 | 17:e5b7469082c8 | 76 | wait(0.5); |
neilt6 | 17:e5b7469082c8 | 77 | |
neilt6 | 0:8f2b6eed2a9d | 78 | //Print the start message |
neilt6 | 0:8f2b6eed2a9d | 79 | printf("\nPress the button to perform tests: "); |
neilt6 | 0:8f2b6eed2a9d | 80 | |
neilt6 | 0:8f2b6eed2a9d | 81 | //Wait for the button to be pressed |
neilt6 | 0:8f2b6eed2a9d | 82 | while(button); |
neilt6 | 0:8f2b6eed2a9d | 83 | |
neilt6 | 19:ae979143c796 | 84 | //Make sure a card is present |
neilt6 | 19:ae979143c796 | 85 | if (!sd.card_present()) { |
neilt6 | 19:ae979143c796 | 86 | printf("\nNo card present!\n"); |
neilt6 | 19:ae979143c796 | 87 | continue; |
neilt6 | 19:ae979143c796 | 88 | } |
neilt6 | 19:ae979143c796 | 89 | |
neilt6 | 19:ae979143c796 | 90 | //Try to mount the SD card |
neilt6 | 19:ae979143c796 | 91 | printf("\nMounting SD card..."); |
neilt6 | 19:ae979143c796 | 92 | if (sd.mount() != 0) { |
neilt6 | 19:ae979143c796 | 93 | printf("failed!\n"); |
neilt6 | 19:ae979143c796 | 94 | continue; |
neilt6 | 19:ae979143c796 | 95 | } |
neilt6 | 19:ae979143c796 | 96 | printf("success!\n"); |
neilt6 | 19:ae979143c796 | 97 | |
neilt6 | 17:e5b7469082c8 | 98 | //Display the card type |
neilt6 | 19:ae979143c796 | 99 | printf("\tCard type: "); |
neilt6 | 17:e5b7469082c8 | 100 | SDFileSystem::CardType cardType = sd.card_type(); |
neilt6 | 17:e5b7469082c8 | 101 | if (cardType == SDFileSystem::CARD_NONE) |
neilt6 | 0:8f2b6eed2a9d | 102 | printf("None\n"); |
neilt6 | 17:e5b7469082c8 | 103 | else if (cardType == SDFileSystem::CARD_MMC) |
neilt6 | 0:8f2b6eed2a9d | 104 | printf("MMC\n"); |
neilt6 | 17:e5b7469082c8 | 105 | else if (cardType == SDFileSystem::CARD_SD) |
neilt6 | 0:8f2b6eed2a9d | 106 | printf("SD\n"); |
neilt6 | 17:e5b7469082c8 | 107 | else if (cardType == SDFileSystem::CARD_SDHC) |
neilt6 | 0:8f2b6eed2a9d | 108 | printf("SDHC\n"); |
neilt6 | 0:8f2b6eed2a9d | 109 | else |
neilt6 | 0:8f2b6eed2a9d | 110 | printf("Unknown\n"); |
neilt6 | 17:e5b7469082c8 | 111 | |
neilt6 | 17:e5b7469082c8 | 112 | //Display the card capacity |
neilt6 | 20:ec1c4f02d50e | 113 | printf("\tSectors: %u\n", sd.disk_sectors()); |
neilt6 | 19:ae979143c796 | 114 | printf("\tCapacity: %.1fMB\n", sd.disk_sectors() / 2048.0); |
neilt6 | 0:8f2b6eed2a9d | 115 | |
neilt6 | 17:e5b7469082c8 | 116 | /*//Format the card |
neilt6 | 17:e5b7469082c8 | 117 | printf("Formatting SD card..."); |
neilt6 | 17:e5b7469082c8 | 118 | if (sd.format() != 0) { |
neilt6 | 17:e5b7469082c8 | 119 | printf("failed!\n"); |
neilt6 | 17:e5b7469082c8 | 120 | continue; |
neilt6 | 17:e5b7469082c8 | 121 | } |
neilt6 | 17:e5b7469082c8 | 122 | printf("success!\n");*/ |
neilt6 | 10:ae649a596123 | 123 | |
neilt6 | 17:e5b7469082c8 | 124 | //Perform a read/write test |
neilt6 | 10:ae649a596123 | 125 | writeTest(); |
neilt6 | 10:ae649a596123 | 126 | readTest(); |
neilt6 | 0:8f2b6eed2a9d | 127 | |
neilt6 | 17:e5b7469082c8 | 128 | //Unmount the SD card |
neilt6 | 10:ae649a596123 | 129 | sd.unmount(); |
pes3 | 26:280dfa8b03ac | 130 | |
pes3 | 26:280dfa8b03ac | 131 | printf("Hello World!\n"); |
pes3 | 26:280dfa8b03ac | 132 | |
pes3 | 26:280dfa8b03ac | 133 | mkdir("/sd/mydir", 0777); |
pes3 | 26:280dfa8b03ac | 134 | |
pes3 | 26:280dfa8b03ac | 135 | FILE *fp = fopen("/sd/mydir/sdtest.txt", "w"); |
pes3 | 26:280dfa8b03ac | 136 | if(fp == NULL) { |
pes3 | 26:280dfa8b03ac | 137 | error("Could not open file for write\n"); |
pes3 | 26:280dfa8b03ac | 138 | } |
pes3 | 26:280dfa8b03ac | 139 | fprintf(fp, "Hello fun SD Card World!"); |
pes3 | 26:280dfa8b03ac | 140 | fclose(fp); |
pes3 | 26:280dfa8b03ac | 141 | |
pes3 | 26:280dfa8b03ac | 142 | printf("Goodbye World!\n"); |
pes3 | 26:280dfa8b03ac | 143 | |
neilt6 | 0:8f2b6eed2a9d | 144 | } |
neilt6 | 0:8f2b6eed2a9d | 145 | } |