Zoltan Hudak / Mbed 2 deprecated STM32F407VET6_USBHostMSD

Example program of using USB mass storage device (USB flash disk) with STM32F407VET6 boards (compatible with Seed Arch Max). This is a fork of https://os.mbed.com/users/va009039/code/F401RE-USBHostMSD_HelloWorld/

Dependencies:   mbed FATFileSystem USBHost-STM32F4

main.cpp@0:4ea663e6aa00, 2019-02-19 (annotated)

Committer:
hudakz
Date:
Tue Feb 19 21:35:40 2019 +0000
Revision:
0:4ea663e6aa00
Initial release.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
hudakz 0:4ea663e6aa00 1 #include "USBHostMSD.h"
hudakz 0:4ea663e6aa00 2
hudakz 0:4ea663e6aa00 3 DigitalOut led1(LED1);
hudakz 0:4ea663e6aa00 4
hudakz 0:4ea663e6aa00 5 int main()
hudakz 0:4ea663e6aa00 6 {
hudakz 0:4ea663e6aa00 7 printf("Starting..\r\n");
hudakz 0:4ea663e6aa00 8
hudakz 0:4ea663e6aa00 9 USBHostMSD msd("usb");
hudakz 0:4ea663e6aa00 10
hudakz 0:4ea663e6aa00 11 printf("Connecting the device\r\n");
hudakz 0:4ea663e6aa00 12
hudakz 0:4ea663e6aa00 13 if (!msd.connect()) {
hudakz 0:4ea663e6aa00 14 error("USB mass storage device not found.\n");
hudakz 0:4ea663e6aa00 15 }
hudakz 0:4ea663e6aa00 16
hudakz 0:4ea663e6aa00 17 FILE* fp = fopen("/usb/test1.txt", "a");
hudakz 0:4ea663e6aa00 18 if (fp) {
hudakz 0:4ea663e6aa00 19 fprintf(fp, "Hello from mbed.\n");
hudakz 0:4ea663e6aa00 20 for (int i = 0; i < 21; i++) {
hudakz 0:4ea663e6aa00 21 fprintf(fp, " %d", i);
hudakz 0:4ea663e6aa00 22 led1 = !led1;
hudakz 0:4ea663e6aa00 23 }
hudakz 0:4ea663e6aa00 24
hudakz 0:4ea663e6aa00 25 fprintf(fp, "\n");
hudakz 0:4ea663e6aa00 26 fclose(fp);
hudakz 0:4ea663e6aa00 27 }
hudakz 0:4ea663e6aa00 28
hudakz 0:4ea663e6aa00 29 fp = fopen("/usb/test1.txt", "r");
hudakz 0:4ea663e6aa00 30 if (fp) {
hudakz 0:4ea663e6aa00 31 int n = 0;
hudakz 0:4ea663e6aa00 32 while (1) {
hudakz 0:4ea663e6aa00 33 int c = fgetc(fp);
hudakz 0:4ea663e6aa00 34 if (c == EOF) {
hudakz 0:4ea663e6aa00 35 break;
hudakz 0:4ea663e6aa00 36 }
hudakz 0:4ea663e6aa00 37
hudakz 0:4ea663e6aa00 38 printf("%c", c);
hudakz 0:4ea663e6aa00 39 n++;
hudakz 0:4ea663e6aa00 40 led1 = !led1;
hudakz 0:4ea663e6aa00 41 }
hudakz 0:4ea663e6aa00 42
hudakz 0:4ea663e6aa00 43 fclose(fp);
hudakz 0:4ea663e6aa00 44 printf("%d bytes\n", n);
hudakz 0:4ea663e6aa00 45 }
hudakz 0:4ea663e6aa00 46
hudakz 0:4ea663e6aa00 47 while (1) {
hudakz 0:4ea663e6aa00 48 led1 = !led1;
hudakz 0:4ea663e6aa00 49 wait_ms(200);
hudakz 0:4ea663e6aa00 50 }
hudakz 0:4ea663e6aa00 51 }