Shivanand Gowda / Mbed OS barcode_reader

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Dependencies:   USBHOST

main.cpp@0:0282e73ca55b, 2017-02-15 (annotated)

Committer:
jamike
Date:
Wed Feb 15 13:07:06 2017 +0000
Revision:
0:0282e73ca55b
Child:
1:a12f904713ed
MSD example running on NUCLEO_F411RE

Who changed what in which revision?

UserRevisionLine numberNew contents of line
jamike 0:0282e73ca55b 1 #include "mbed.h"
jamike 0:0282e73ca55b 2 #include "USBHostMSD.h"
jamike 0:0282e73ca55b 3 DigitalOut led(LED1);
jamike 0:0282e73ca55b 4 void msd_task(void const *) {
jamike 0:0282e73ca55b 5 printf("init msd\n");
jamike 0:0282e73ca55b 6 USBHostMSD msd("usb");
jamike 0:0282e73ca55b 7 int i = 0;
jamike 0:0282e73ca55b 8 printf("wait for usb memory stick insertion\n");
jamike 0:0282e73ca55b 9 while(1) {
jamike 0:0282e73ca55b 10
jamike 0:0282e73ca55b 11 // try to connect a MSD device
jamike 0:0282e73ca55b 12 while(!msd.connect()) {
jamike 0:0282e73ca55b 13 Thread::wait(500);
jamike 0:0282e73ca55b 14 }
jamike 0:0282e73ca55b 15
jamike 0:0282e73ca55b 16 // in a loop, append a file
jamike 0:0282e73ca55b 17 // if the device is disconnected, we try to connect it again
jamike 0:0282e73ca55b 18
jamike 0:0282e73ca55b 19 // append a file
jamike 0:0282e73ca55b 20 FILE * fp = fopen("/usb/test1.txt", "a");
jamike 0:0282e73ca55b 21
jamike 0:0282e73ca55b 22 if (fp != NULL) {
jamike 0:0282e73ca55b 23 fprintf(fp, "Hello fun SD Card World: %d!\r\n", i++);
jamike 0:0282e73ca55b 24 printf("Goodbye World!\r\n");
jamike 0:0282e73ca55b 25 fclose(fp);
jamike 0:0282e73ca55b 26 } else {
jamike 0:0282e73ca55b 27 printf("FILE == NULL\r\n");
jamike 0:0282e73ca55b 28 }
jamike 0:0282e73ca55b 29 Thread::wait(500);
jamike 0:0282e73ca55b 30 printf("again\n");
jamike 0:0282e73ca55b 31 // if device disconnected, try to connect again
jamike 0:0282e73ca55b 32 while (msd.connected()) {
jamike 0:0282e73ca55b 33 Thread::wait(500);
jamike 0:0282e73ca55b 34 }
jamike 0:0282e73ca55b 35 }
jamike 0:0282e73ca55b 36 }
jamike 0:0282e73ca55b 37
jamike 0:0282e73ca55b 38 int main() {
jamike 0:0282e73ca55b 39 Thread msdTask(msd_task, NULL, osPriorityNormal, 1024 * 4);
jamike 0:0282e73ca55b 40 while(1) {
jamike 0:0282e73ca55b 41 led=!led;
jamike 0:0282e73ca55b 42 Thread::wait(500);
jamike 0:0282e73ca55b 43 }
jamike 0:0282e73ca55b 44 }