nikos chalikias / Mbed 2 deprecated n-bed_SD_CARD

n-bed testing USB HOST and a Flash disk

Dependencies:   USBHost mbed

Fork of USBHostMSD_HelloWorld by Samuel Mokrani

main.cpp@9:55d2e740be1c, 2015-05-21 (annotated)

Committer:
chalikias
Date:
Thu May 21 12:27:13 2015 +0000
Revision:
9:55d2e740be1c
Parent:
4:f8a5c8aa895a 
COMMENTS AND CHANGED PROGRAM NAME

Who changed what in which revision?

UserRevisionLine numberNew contents of line
chalikias 9:55d2e740be1c 1 //n-bed SD card testing
chalikias 9:55d2e740be1c 2 //based on n-bed_USBHostMSD_HelloWorld
chalikias 9:55d2e740be1c 3
samux 0:0d68fe822228 4 #include "mbed.h"
samux 0:0d68fe822228 5 #include "USBHostMSD.h"
samux 0:0d68fe822228 6
samux 0:0d68fe822228 7 DigitalOut led(LED1);
samux 0:0d68fe822228 8
samux 0:0d68fe822228 9 void msd_task(void const *) {
samux 0:0d68fe822228 10
samux 0:0d68fe822228 11 USBHostMSD msd("usb");
samux 0:0d68fe822228 12 int i = 0;
samux 0:0d68fe822228 13
samux 0:0d68fe822228 14 while(1) {
samux 0:0d68fe822228 15
samux 1:473f339c54c1 16 // try to connect a MSD device
samux 1:473f339c54c1 17 while(!msd.connect()) {
samux 1:473f339c54c1 18 Thread::wait(500);
samux 1:473f339c54c1 19 }
samux 1:473f339c54c1 20
samux 4:f8a5c8aa895a 21 // in a loop, append a file
samux 4:f8a5c8aa895a 22 // if the device is disconnected, we try to connect it again
samux 1:473f339c54c1 23 while(1) {
samux 1:473f339c54c1 24
samux 4:f8a5c8aa895a 25 // append a file
samux 1:473f339c54c1 26 FILE * fp = fopen("/usb/test1.txt", "a");
samux 1:473f339c54c1 27
samux 1:473f339c54c1 28 if (fp != NULL) {
samux 1:473f339c54c1 29 fprintf(fp, "Hello fun SD Card World: %d!\r\n", i++);
samux 1:473f339c54c1 30 printf("Goodbye World!\r\n");
samux 1:473f339c54c1 31 fclose(fp);
samux 1:473f339c54c1 32 } else {
samux 1:473f339c54c1 33 printf("FILE == NULL\r\n");
samux 1:473f339c54c1 34 }
samux 1:473f339c54c1 35
samux 0:0d68fe822228 36 Thread::wait(500);
samux 0:0d68fe822228 37
samux 1:473f339c54c1 38 // if device disconnected, try to connect again
samux 1:473f339c54c1 39 if (!msd.connected())
samux 1:473f339c54c1 40 break;
samux 0:0d68fe822228 41 }
samux 1:473f339c54c1 42
samux 0:0d68fe822228 43 }
samux 0:0d68fe822228 44 }
samux 0:0d68fe822228 45
samux 0:0d68fe822228 46
samux 0:0d68fe822228 47 int main() {
samux 2:3e3df7a79050 48 Thread msdTask(msd_task, NULL, osPriorityNormal, 1024 * 4);
samux 0:0d68fe822228 49 while(1) {
samux 0:0d68fe822228 50 led=!led;
samux 0:0d68fe822228 51 Thread::wait(500);
samux 0:0d68fe822228 52 }
samux 0:0d68fe822228 53 }