Example to show how to use USB Host on the LPC4088 QSB.
Dependencies: LPC4088-USBHost mbed
main.cpp@0:5cd11f3b13a2, 2015-04-24 (annotated)
- Committer:
- embeddedartists
- Date:
- Fri Apr 24 06:13:20 2015 +0000
- Revision:
- 0:5cd11f3b13a2
Example to show USB Host MassStorage
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
embeddedartists | 0:5cd11f3b13a2 | 1 | // Simple USBHost MSD(USB Flash drive) for EA LPC4088 QSB test program |
embeddedartists | 0:5cd11f3b13a2 | 2 | #include "USBHostMSD.h" |
embeddedartists | 0:5cd11f3b13a2 | 3 | |
embeddedartists | 0:5cd11f3b13a2 | 4 | DigitalOut led1(LED1); |
embeddedartists | 0:5cd11f3b13a2 | 5 | DigitalOut led2(LED2); |
embeddedartists | 0:5cd11f3b13a2 | 6 | #define LED_OFF 0 |
embeddedartists | 0:5cd11f3b13a2 | 7 | #define LED_ON 1 |
embeddedartists | 0:5cd11f3b13a2 | 8 | |
embeddedartists | 0:5cd11f3b13a2 | 9 | int main() { |
embeddedartists | 0:5cd11f3b13a2 | 10 | USBHostMSD msd("usb"); |
embeddedartists | 0:5cd11f3b13a2 | 11 | if (!msd.connect()) { |
embeddedartists | 0:5cd11f3b13a2 | 12 | error("USB Flash drive not found.\n"); |
embeddedartists | 0:5cd11f3b13a2 | 13 | } |
embeddedartists | 0:5cd11f3b13a2 | 14 | FILE* fp = fopen("/usb/test1.txt", "a"); |
embeddedartists | 0:5cd11f3b13a2 | 15 | if (fp) { |
embeddedartists | 0:5cd11f3b13a2 | 16 | fprintf(fp, "Hello from EA LPC4088 QSB\n"); |
embeddedartists | 0:5cd11f3b13a2 | 17 | for(int i = 0; i < 21; i++) { |
embeddedartists | 0:5cd11f3b13a2 | 18 | fprintf(fp, " %d", i); |
embeddedartists | 0:5cd11f3b13a2 | 19 | led2 = !led2; |
embeddedartists | 0:5cd11f3b13a2 | 20 | } |
embeddedartists | 0:5cd11f3b13a2 | 21 | fprintf(fp, "\n"); |
embeddedartists | 0:5cd11f3b13a2 | 22 | fclose(fp); |
embeddedartists | 0:5cd11f3b13a2 | 23 | } |
embeddedartists | 0:5cd11f3b13a2 | 24 | fp = fopen("/usb/test1.txt", "r"); |
embeddedartists | 0:5cd11f3b13a2 | 25 | if (fp) { |
embeddedartists | 0:5cd11f3b13a2 | 26 | int n = 0; |
embeddedartists | 0:5cd11f3b13a2 | 27 | while(1) { |
embeddedartists | 0:5cd11f3b13a2 | 28 | int c = fgetc(fp); |
embeddedartists | 0:5cd11f3b13a2 | 29 | if (c == EOF) { |
embeddedartists | 0:5cd11f3b13a2 | 30 | break; |
embeddedartists | 0:5cd11f3b13a2 | 31 | } |
embeddedartists | 0:5cd11f3b13a2 | 32 | printf("%c", c); |
embeddedartists | 0:5cd11f3b13a2 | 33 | n++; |
embeddedartists | 0:5cd11f3b13a2 | 34 | led1 = !led1; |
embeddedartists | 0:5cd11f3b13a2 | 35 | } |
embeddedartists | 0:5cd11f3b13a2 | 36 | fclose(fp); |
embeddedartists | 0:5cd11f3b13a2 | 37 | printf("%d bytes\n", n); |
embeddedartists | 0:5cd11f3b13a2 | 38 | } |
embeddedartists | 0:5cd11f3b13a2 | 39 | led2 = LED_OFF; |
embeddedartists | 0:5cd11f3b13a2 | 40 | while(1) { |
embeddedartists | 0:5cd11f3b13a2 | 41 | led1 = !led1; |
embeddedartists | 0:5cd11f3b13a2 | 42 | wait_ms(200); |
embeddedartists | 0:5cd11f3b13a2 | 43 | } |
embeddedartists | 0:5cd11f3b13a2 | 44 | } |