Sample of using USB memory and SD card on GR-PEACH
Dependencies: SDBlockDevice_GR_PEACH USBHost_custom
Fork of mbed-os-storage-access by
main.cpp@0:392df152119c, 2017-03-16 (annotated)
- Committer:
- dkato
- Date:
- Thu Mar 16 09:28:46 2017 +0000
- Revision:
- 0:392df152119c
- Child:
- 1:c1b5260c1491
first commit
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
dkato | 0:392df152119c | 1 | #include "mbed.h" |
dkato | 0:392df152119c | 2 | #include "FATFileSystem.h" |
dkato | 0:392df152119c | 3 | #include "SDBlockDevice_GR_PEACH.h" |
dkato | 0:392df152119c | 4 | #include "USBHostMSD.h" |
dkato | 0:392df152119c | 5 | |
dkato | 0:392df152119c | 6 | int main() { |
dkato | 0:392df152119c | 7 | int i = 0; |
dkato | 0:392df152119c | 8 | int strage_type = 0; |
dkato | 0:392df152119c | 9 | char strage_str[16]; |
dkato | 0:392df152119c | 10 | |
dkato | 0:392df152119c | 11 | FATFileSystem fs("storage"); |
dkato | 0:392df152119c | 12 | SDBlockDevice_GR_PEACH sd; |
dkato | 0:392df152119c | 13 | USBHostMSD usb; |
dkato | 0:392df152119c | 14 | |
dkato | 0:392df152119c | 15 | while(1) { |
dkato | 0:392df152119c | 16 | // try to connect a storage device |
dkato | 0:392df152119c | 17 | fs.unmount(); |
dkato | 0:392df152119c | 18 | while (1) { |
dkato | 0:392df152119c | 19 | if (sd.connect()) { |
dkato | 0:392df152119c | 20 | strage_type = 0; // SD |
dkato | 0:392df152119c | 21 | strcpy(strage_str, "SD card"); |
dkato | 0:392df152119c | 22 | fs.mount(&sd); |
dkato | 0:392df152119c | 23 | break; |
dkato | 0:392df152119c | 24 | } |
dkato | 0:392df152119c | 25 | if (usb.connect()) { |
dkato | 0:392df152119c | 26 | strage_type = 1; // USB |
dkato | 0:392df152119c | 27 | strcpy(strage_str, "USB memory"); |
dkato | 0:392df152119c | 28 | fs.mount(&usb); |
dkato | 0:392df152119c | 29 | break; |
dkato | 0:392df152119c | 30 | } |
dkato | 0:392df152119c | 31 | Thread::wait(500); |
dkato | 0:392df152119c | 32 | } |
dkato | 0:392df152119c | 33 | |
dkato | 0:392df152119c | 34 | // in a loop, append a file |
dkato | 0:392df152119c | 35 | // if the device is disconnected, we try to connect it again |
dkato | 0:392df152119c | 36 | while(1) { |
dkato | 0:392df152119c | 37 | // append a file |
dkato | 0:392df152119c | 38 | FILE * fp = fopen("/storage/test1.txt", "a"); |
dkato | 0:392df152119c | 39 | |
dkato | 0:392df152119c | 40 | if (fp != NULL) { |
dkato | 0:392df152119c | 41 | fprintf(fp, "Hello %s World: %d!\r\n", strage_str, i++); |
dkato | 0:392df152119c | 42 | printf("Goodbye World!\r\n"); |
dkato | 0:392df152119c | 43 | fclose(fp); |
dkato | 0:392df152119c | 44 | } else { |
dkato | 0:392df152119c | 45 | printf("FILE == NULL\r\n"); |
dkato | 0:392df152119c | 46 | } |
dkato | 0:392df152119c | 47 | Thread::wait(500); |
dkato | 0:392df152119c | 48 | |
dkato | 0:392df152119c | 49 | // if device disconnected, try to connect again |
dkato | 0:392df152119c | 50 | if (strage_type == 0) { |
dkato | 0:392df152119c | 51 | if (!sd.connected()) break; |
dkato | 0:392df152119c | 52 | } else { |
dkato | 0:392df152119c | 53 | if (!usb.connected()) break; |
dkato | 0:392df152119c | 54 | } |
dkato | 0:392df152119c | 55 | } |
dkato | 0:392df152119c | 56 | } |
dkato | 0:392df152119c | 57 | } |