PES 4 - Smart Medication Dispenser / PES4_ProgrammeforDesignReview2

Important changes to repositories hosted on mbed.com

Mbed hosted mercurial repositories are deprecated and are due to be permanently deleted in July 2026.

To keep a copy of this software download the repository Zip archive or clone locally using Mercurial.

It is also possible to export all your personal repositories from the account settings page.

Dependencies:   SDFileSystem mbed

Fork of PES4_Programme by PES 4 - Smart Medication Dispenser

source/sdcard.cpp@51:a98ffbd41e76, 2018-03-29 (annotated)

Committer:
cittecla
Date:
Thu Mar 29 18:17:38 2018 +0000
Revision:
51:a98ffbd41e76
Child:
52:701d0c2f47d7
added SD library

Who changed what in which revision?

UserRevisionLine numberNew contents of line
cittecla 51:a98ffbd41e76 1 #include "sdcard.h"
cittecla 51:a98ffbd41e76 2
cittecla 51:a98ffbd41e76 3
cittecla 51:a98ffbd41e76 4 Timer timer;
cittecla 51:a98ffbd41e76 5
cittecla 51:a98ffbd41e76 6 DigitalIn button(PC_13, PullUp);
cittecla 51:a98ffbd41e76 7
cittecla 51:a98ffbd41e76 8 SDFileSystem sd(PA_7, PA_6, PA_5, PB_6, "sd", PA_8, SDFileSystem::SWITCH_NONE, 25000000);
cittecla 51:a98ffbd41e76 9 char buffer[4096];
cittecla 51:a98ffbd41e76 10
cittecla 51:a98ffbd41e76 11 void writeTest()
cittecla 51:a98ffbd41e76 12 {
cittecla 51:a98ffbd41e76 13 //Test write performance by creating a 1MB file
cittecla 51:a98ffbd41e76 14 printf("Testing %iB write performance...\n\r", sizeof(buffer));
cittecla 51:a98ffbd41e76 15 FileHandle* file = sd.open("Test File.bin", O_WRONLY | O_CREAT | O_TRUNC);
cittecla 51:a98ffbd41e76 16 if (file != NULL) {
cittecla 51:a98ffbd41e76 17 timer.start();
cittecla 51:a98ffbd41e76 18 for (int i = 0; i < (1048576 / sizeof(buffer)); i++) {
cittecla 51:a98ffbd41e76 19 if (file->write(buffer, sizeof(buffer)) != sizeof(buffer)) {
cittecla 51:a98ffbd41e76 20 timer.stop();
cittecla 51:a98ffbd41e76 21 printf("write error!\n\r");
cittecla 51:a98ffbd41e76 22 timer.reset();
cittecla 51:a98ffbd41e76 23 return;
cittecla 51:a98ffbd41e76 24 }
cittecla 51:a98ffbd41e76 25 }
cittecla 51:a98ffbd41e76 26 timer.stop();
cittecla 51:a98ffbd41e76 27 if (file->close())
cittecla 51:a98ffbd41e76 28 printf("failed to close file!\n\r");
cittecla 51:a98ffbd41e76 29 else
cittecla 51:a98ffbd41e76 30 printf("done!\n\r\tResult: %.2fKB/s\n\r", 1024 / (timer.read_us() / 1000000.0));
cittecla 51:a98ffbd41e76 31 timer.reset();
cittecla 51:a98ffbd41e76 32 } else {
cittecla 51:a98ffbd41e76 33 printf("failed to create file!\n\r");
cittecla 51:a98ffbd41e76 34 }
cittecla 51:a98ffbd41e76 35 }
cittecla 51:a98ffbd41e76 36
cittecla 51:a98ffbd41e76 37 void readTest()
cittecla 51:a98ffbd41e76 38 {
cittecla 51:a98ffbd41e76 39 //Test read performance by reading the 1MB file created by writeTest()
cittecla 51:a98ffbd41e76 40 printf("Testing %iB read performance...", sizeof(buffer));
cittecla 51:a98ffbd41e76 41 FileHandle* file = sd.open("Test File.bin", O_RDONLY);
cittecla 51:a98ffbd41e76 42 if (file != NULL) {
cittecla 51:a98ffbd41e76 43 timer.start();
cittecla 51:a98ffbd41e76 44 int iterations = 0;
cittecla 51:a98ffbd41e76 45 while (file->read(buffer, sizeof(buffer)) == sizeof(buffer))
cittecla 51:a98ffbd41e76 46 iterations++;
cittecla 51:a98ffbd41e76 47 timer.stop();
cittecla 51:a98ffbd41e76 48 if (iterations != (1048576 / sizeof(buffer)))
cittecla 51:a98ffbd41e76 49 printf("read error!\n\r");
cittecla 51:a98ffbd41e76 50 else if (file->close())
cittecla 51:a98ffbd41e76 51 printf("failed to close file!\n\r");
cittecla 51:a98ffbd41e76 52 else if (sd.remove("Test File.bin"))
cittecla 51:a98ffbd41e76 53 printf("failed to delete file!\n\r");
cittecla 51:a98ffbd41e76 54 else
cittecla 51:a98ffbd41e76 55 printf("done!\n\r\tResult: %.2fKB/s\n\r", 1024 / (timer.read_us() / 1000000.0));
cittecla 51:a98ffbd41e76 56 timer.reset();
cittecla 51:a98ffbd41e76 57 } else {
cittecla 51:a98ffbd41e76 58 printf("failed to open file!\n\r");
cittecla 51:a98ffbd41e76 59 }
cittecla 51:a98ffbd41e76 60 }
cittecla 51:a98ffbd41e76 61
cittecla 51:a98ffbd41e76 62 void testSd()
cittecla 51:a98ffbd41e76 63 {
cittecla 51:a98ffbd41e76 64 //Configure CRC, large frames, and write validation
cittecla 51:a98ffbd41e76 65 sd.crc(true);
cittecla 51:a98ffbd41e76 66 sd.large_frames(true);
cittecla 51:a98ffbd41e76 67 sd.write_validation(true);
cittecla 51:a98ffbd41e76 68
cittecla 51:a98ffbd41e76 69 //Fill the buffer with random data for the write test
cittecla 51:a98ffbd41e76 70 srand(time(NULL));
cittecla 51:a98ffbd41e76 71 for (int i = 0; i < sizeof(buffer); i++)
cittecla 51:a98ffbd41e76 72 buffer[i] = rand();
cittecla 51:a98ffbd41e76 73
cittecla 51:a98ffbd41e76 74
cittecla 51:a98ffbd41e76 75 //Print the start message
cittecla 51:a98ffbd41e76 76 printf("\n\rPress the button to perform tests: ");
cittecla 51:a98ffbd41e76 77
cittecla 51:a98ffbd41e76 78
cittecla 51:a98ffbd41e76 79 //Make sure a card is present
cittecla 51:a98ffbd41e76 80 if (!sd.card_present()) {
cittecla 51:a98ffbd41e76 81 printf("\n\rNo card present!\n\r");
cittecla 51:a98ffbd41e76 82 }
cittecla 51:a98ffbd41e76 83
cittecla 51:a98ffbd41e76 84 //Try to mount the SD card
cittecla 51:a98ffbd41e76 85 printf("\n\rMounting SD card...");
cittecla 51:a98ffbd41e76 86 if (sd.mount() != 0) {
cittecla 51:a98ffbd41e76 87 printf("failed!\n\r");
cittecla 51:a98ffbd41e76 88 }
cittecla 51:a98ffbd41e76 89 printf("success!\n\r");
cittecla 51:a98ffbd41e76 90
cittecla 51:a98ffbd41e76 91 //Display the card type
cittecla 51:a98ffbd41e76 92 printf("\tCard type: ");
cittecla 51:a98ffbd41e76 93 SDFileSystem::CardType cardType = sd.card_type();
cittecla 51:a98ffbd41e76 94 if (cardType == SDFileSystem::CARD_NONE)
cittecla 51:a98ffbd41e76 95 printf("None\n\r");
cittecla 51:a98ffbd41e76 96 else if (cardType == SDFileSystem::CARD_MMC)
cittecla 51:a98ffbd41e76 97 printf("MMC\n\r");
cittecla 51:a98ffbd41e76 98 else if (cardType == SDFileSystem::CARD_SD)
cittecla 51:a98ffbd41e76 99 printf("SD\n\r");
cittecla 51:a98ffbd41e76 100 else if (cardType == SDFileSystem::CARD_SDHC)
cittecla 51:a98ffbd41e76 101 printf("SDHC\n\r");
cittecla 51:a98ffbd41e76 102 else
cittecla 51:a98ffbd41e76 103 printf("Unknown\n\r");
cittecla 51:a98ffbd41e76 104
cittecla 51:a98ffbd41e76 105 //Display the card capacity
cittecla 51:a98ffbd41e76 106 printf("\tSectors: %u\n\r", sd.disk_sectors());
cittecla 51:a98ffbd41e76 107 printf("\tCapacity: %.1fMB\n\r", sd.disk_sectors() / 2048.0);
cittecla 51:a98ffbd41e76 108
cittecla 51:a98ffbd41e76 109 /*//Format the card
cittecla 51:a98ffbd41e76 110 printf("Formatting SD card...");
cittecla 51:a98ffbd41e76 111 if (sd.format() != 0) {
cittecla 51:a98ffbd41e76 112 printf("failed!\n\r");
cittecla 51:a98ffbd41e76 113 continue;
cittecla 51:a98ffbd41e76 114 }
cittecla 51:a98ffbd41e76 115 printf("success!\n\r");*/
cittecla 51:a98ffbd41e76 116
cittecla 51:a98ffbd41e76 117 //Perform a read/write test
cittecla 51:a98ffbd41e76 118 writeTest();
cittecla 51:a98ffbd41e76 119 readTest();
cittecla 51:a98ffbd41e76 120
cittecla 51:a98ffbd41e76 121
cittecla 51:a98ffbd41e76 122
cittecla 51:a98ffbd41e76 123 printf("write to SD card on a txt file:\n\r");
cittecla 51:a98ffbd41e76 124 printf("\tHello World!\n\r");
cittecla 51:a98ffbd41e76 125
cittecla 51:a98ffbd41e76 126 FILE *fp = fopen("/sd/medication/sdtest.txt", "a");
cittecla 51:a98ffbd41e76 127 if(fp == NULL) {
cittecla 51:a98ffbd41e76 128 printf("\tCould not open file for write\n\r");
cittecla 51:a98ffbd41e76 129 } else {
cittecla 51:a98ffbd41e76 130 printf("\tfile opened\n\r");
cittecla 51:a98ffbd41e76 131 }
cittecla 51:a98ffbd41e76 132
cittecla 51:a98ffbd41e76 133 fprintf(fp, "Hello fun SD Card World!\n\r");
cittecla 51:a98ffbd41e76 134 fclose(fp);
cittecla 51:a98ffbd41e76 135
cittecla 51:a98ffbd41e76 136 printf("\tText written to SD card\n\r");
cittecla 51:a98ffbd41e76 137 printf("\tGoodbye World!\n\r");
cittecla 51:a98ffbd41e76 138
cittecla 51:a98ffbd41e76 139 //Unmount the SD card
cittecla 51:a98ffbd41e76 140 sd.unmount();
cittecla 51:a98ffbd41e76 141 }