IOP / Mbed 2 deprecated SPI_SDcard_Helloworld_WIZwiki-W7500

Read/Write the SD card(using SSP)

Dependencies:   SDFileSystem mbed

Fork of SSP_SDcard_Helloworld_WIZwiki-W7500 by eunkyoung kim

main.cpp@4:68cb56ba60c6, 2015-07-02 (annotated)

Committer:
eunkyoungkim
Date:
Thu Jul 02 07:37:06 2015 +0000
Revision:
4:68cb56ba60c6
Parent:
3:017b99069995
Child:
7:daaefdca1f78
Read the SD(using SSP)

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 0:bdbd3d6fc5d5 1 #include "mbed.h"
mbed_official 0:bdbd3d6fc5d5 2 #include "SDFileSystem.h"
eunkyoungkim 3:017b99069995 3 #if defined(TARGET_WIZwiki_W7500)
eunkyoungkim 3:017b99069995 4 #define MOSI PB_3
eunkyoungkim 3:017b99069995 5 #define MISO PB_2
eunkyoungkim 3:017b99069995 6 #define CLK PB_1
eunkyoungkim 3:017b99069995 7 #define SEL PB_0
eunkyoungkim 3:017b99069995 8 #endif
eunkyoungkim 1:f4d825b196e7 9
eunkyoungkim 1:f4d825b196e7 10 #define MAX_SIZE 100
eunkyoungkim 3:017b99069995 11 SDFileSystem sd(MOSI, MISO, CLK, SEL, "sd"); // the pinout on the mbed Cool Components workshop board
eunkyoungkim 1:f4d825b196e7 12
eunkyoungkim 4:68cb56ba60c6 13
mbed_official 0:bdbd3d6fc5d5 14 int main() {
eunkyoungkim 4:68cb56ba60c6 15
eunkyoungkim 4:68cb56ba60c6 16 char str[MAX_SIZE];
eunkyoungkim 4:68cb56ba60c6 17 mkdir("/sd/mydir", 0777);
eunkyoungkim 4:68cb56ba60c6 18 //"w" : {Write) - Create an empty file for output operations. If a file with the same name already exists, its contents are discarded and the file is treated as a new empty file.
eunkyoungkim 4:68cb56ba60c6 19 //"a+" :(append/update) - open (or create if the file does not exist) for update at the end of the file
eunkyoungkim 4:68cb56ba60c6 20 FILE *fp = fopen("/sd/mydir/sdtest.txt", "w");
eunkyoungkim 4:68cb56ba60c6 21 if(fp == NULL) {
eunkyoungkim 4:68cb56ba60c6 22 error("Could not open file for write\n");
eunkyoungkim 4:68cb56ba60c6 23 }
eunkyoungkim 4:68cb56ba60c6 24 //fprintf(fp, "Hello fun SD Card World!");
eunkyoungkim 4:68cb56ba60c6 25 printf("Insert data:");
eunkyoungkim 4:68cb56ba60c6 26 scanf("%s",str);
eunkyoungkim 4:68cb56ba60c6 27 printf("\r\n");
eunkyoungkim 4:68cb56ba60c6 28 fflush(stdin);
eunkyoungkim 4:68cb56ba60c6 29 fprintf(fp,"%s", str);
eunkyoungkim 4:68cb56ba60c6 30 fclose(fp);
eunkyoungkim 4:68cb56ba60c6 31
eunkyoungkim 4:68cb56ba60c6 32 printf("Reading from SD card...\r\n");
eunkyoungkim 4:68cb56ba60c6 33 fp = fopen("/sd/mydir/sdtest.txt", "r");
eunkyoungkim 4:68cb56ba60c6 34 if (fp != NULL) {
eunkyoungkim 4:68cb56ba60c6 35 fgets(str,MAX_SIZE,fp);
eunkyoungkim 4:68cb56ba60c6 36 printf("%s", str);
eunkyoungkim 4:68cb56ba60c6 37 printf("\r\n");
eunkyoungkim 4:68cb56ba60c6 38 fclose(fp);
eunkyoungkim 4:68cb56ba60c6 39 } else {
eunkyoungkim 4:68cb56ba60c6 40 printf("failed!\n");
eunkyoungkim 4:68cb56ba60c6 41 }
eunkyoungkim 4:68cb56ba60c6 42
mbed_official 0:bdbd3d6fc5d5 43 }