Samuel Mokrani
USBHID Hello World
main.cpp@1:0216a6726c1c, 2011-11-03 (annotated)
- Committer:
- samux
- Date:
- Thu Nov 03 12:26:16 2011 +0000
- Revision:
- 1:0216a6726c1c
- Parent:
- 0:30b74cf0e645
- Child:
- 2:d07a799c6926
Who changed what in which revision?
| User | Revision | Line number | New contents of line |
|---|---|---|---|
| samux | 0:30b74cf0e645 | 1 | #include "mbed.h" |
| samux | 0:30b74cf0e645 | 2 | #include "USBHID.h" |
| samux | 0:30b74cf0e645 | 3 | |
| samux | 1:0216a6726c1c | 4 | //We declare a USBHID device: it can send 1 byte and receive 1 byte |
| samux | 1:0216a6726c1c | 5 | USBHID hid(1, 1); |
| samux | 1:0216a6726c1c | 6 | |
| samux | 1:0216a6726c1c | 7 | //Two reports where will be stored values to send and received |
| samux | 1:0216a6726c1c | 8 | HID_REPORT recv_report; |
| samux | 1:0216a6726c1c | 9 | HID_REPORT send_report; |
| samux | 1:0216a6726c1c | 10 | |
| samux | 1:0216a6726c1c | 11 | //Bus of leds |
| samux | 0:30b74cf0e645 | 12 | BusOut leds(LED1,LED2,LED3,LED4); |
| samux | 0:30b74cf0e645 | 13 | |
| samux | 1:0216a6726c1c | 14 | //Bus of buttons |
| samux | 1:0216a6726c1c | 15 | BusInOut buttons(p21, p22, p23, p24); |
| samux | 1:0216a6726c1c | 16 | |
| samux | 0:30b74cf0e645 | 17 | int main(void) { |
| samux | 1:0216a6726c1c | 18 | uint8_t p_bus = 0; |
| samux | 1:0216a6726c1c | 19 | send_report.length = 1; |
| samux | 1:0216a6726c1c | 20 | |
| samux | 0:30b74cf0e645 | 21 | while (1) { |
| samux | 1:0216a6726c1c | 22 | //If a data is received, update led bus |
| samux | 1:0216a6726c1c | 23 | if (hid.readNB(&recv_report)) { |
| samux | 1:0216a6726c1c | 24 | leds = recv_report.data[0]; |
| samux | 1:0216a6726c1c | 25 | } |
| samux | 1:0216a6726c1c | 26 | |
| samux | 1:0216a6726c1c | 27 | //if the bus of buttons has changed, send a report |
| samux | 1:0216a6726c1c | 28 | if (buttons.read() != p_bus) { |
| samux | 1:0216a6726c1c | 29 | p_bus = buttons.read(); |
| samux | 1:0216a6726c1c | 30 | send_report.data[0] = p_bus; |
| samux | 1:0216a6726c1c | 31 | hid.send(&send_report); |
| samux | 1:0216a6726c1c | 32 | } |
| samux | 1:0216a6726c1c | 33 | wait(0.01); |
| samux | 0:30b74cf0e645 | 34 | } |
| samux | 0:30b74cf0e645 | 35 | } |