ram version see usbmsd_sd.cpp ram ok fs CANNOT be installed - too small use for illustrative purpose only
Dependencies: USBDevice USBMSD_SD mbed
Fork of USBMSD_SD_HelloWorld_Mbed by
Diff: main.cpp
- Revision:
- 14:757226626acb
- Parent:
- 13:32b8a767cf0e
- Child:
- 16:c753717bfd4d
diff -r 32b8a767cf0e -r 757226626acb main.cpp --- a/main.cpp Mon Dec 05 14:34:29 2011 +0000 +++ b/main.cpp Tue Dec 06 12:07:12 2011 +0000 @@ -6,18 +6,25 @@ DigitalIn button(p16); int main() { - if (button) { - sd.connect(); - } else { - mkdir("/sd/mydir", 0777); + char dir[30]; + char file[30]; + int count =0; + + sd.connect(); + + while (1) { + sprintf(dir, "/sd/dir%d", count++); + mkdir(dir, 0777); - FILE *fp = fopen("/sd/mydir/sdtest.txt", "w"); - if (fp == NULL) { - error("Could not open file for write\n"); + sprintf(file, "%s/test.txt", dir); + FILE *fp = fopen(file, "w"); + if (fp != NULL) { + printf("will write !!\r\n"); + fprintf(fp, "Hello fun SD Card World!"); + fclose(fp); + } else { + printf("Could not open file for write\r\n"); } - fprintf(fp, "Hello fun SD Card World!"); - fclose(fp); - + wait(3); } - while (1); } \ No newline at end of file