![](/media/cache/group/default_image.jpg.50x50_q85.jpg)
keypad test for the CORE-1000
Dependencies: mbed
main.cpp@6:902b4b31fb35, 2018-03-21 (annotated)
- Committer:
- odb
- Date:
- Wed Mar 21 08:20:38 2018 +0000
- Revision:
- 6:902b4b31fb35
- Parent:
- 2:b60cb847489c
CORE-1000_keypad
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
screamer | 0:005629fe3609 | 1 | #include "mbed.h" |
screamer | 0:005629fe3609 | 2 | |
odb | 6:902b4b31fb35 | 3 | DigitalOut clkout(PA_8); |
odb | 6:902b4b31fb35 | 4 | DigitalIn keyin(PB_4 ); |
odb | 6:902b4b31fb35 | 5 | Serial pc(USBTX, USBRX); |
odb | 6:902b4b31fb35 | 6 | int oldkey; |
odb | 6:902b4b31fb35 | 7 | int getkey(void) |
odb | 6:902b4b31fb35 | 8 | { |
odb | 6:902b4b31fb35 | 9 | int cnt; |
odb | 6:902b4b31fb35 | 10 | int num = 0; |
odb | 6:902b4b31fb35 | 11 | for(cnt = 1; cnt < 17; cnt++) |
odb | 6:902b4b31fb35 | 12 | { |
odb | 6:902b4b31fb35 | 13 | clkout = 0; |
odb | 6:902b4b31fb35 | 14 | if(keyin == 0) |
odb | 6:902b4b31fb35 | 15 | num = cnt; |
odb | 6:902b4b31fb35 | 16 | clkout = 1; |
odb | 6:902b4b31fb35 | 17 | } |
odb | 6:902b4b31fb35 | 18 | printf("num = %d \n\r", num); |
odb | 6:902b4b31fb35 | 19 | return num; |
odb | 6:902b4b31fb35 | 20 | } |
screamer | 0:005629fe3609 | 21 | int main() { |
odb | 6:902b4b31fb35 | 22 | pc.baud(115200); |
screamer | 0:005629fe3609 | 23 | while(1) { |
odb | 6:902b4b31fb35 | 24 | int newkey = getkey(); |
odb | 6:902b4b31fb35 | 25 | printf("key pressed = %d \n\r", newkey); |
odb | 6:902b4b31fb35 | 26 | oldkey = newkey; |
odb | 6:902b4b31fb35 | 27 | wait(0.2); |
screamer | 0:005629fe3609 | 28 | } |
odb | 6:902b4b31fb35 | 29 | } |