Parkavi Prabhaharan
/
LEDglow
LED is switched on and off by typing 1,2,3 and 4
main.cpp@0:343714a476ac, 2013-07-13 (annotated)
- Committer:
- Parkz
- Date:
- Sat Jul 13 09:14:11 2013 +0000
- Revision:
- 0:343714a476ac
The scanf function here doesnt seem to be working. Please help me!
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
Parkz | 0:343714a476ac | 1 | #include "mbed.h" |
Parkz | 0:343714a476ac | 2 | #include<stdio.h> |
Parkz | 0:343714a476ac | 3 | Serial pc(USBTX,USBRX); |
Parkz | 0:343714a476ac | 4 | DigitalOut leds[]={(LED1),(LED2),(LED3),(LED4)}; |
Parkz | 0:343714a476ac | 5 | void ledon(int no) |
Parkz | 0:343714a476ac | 6 | { |
Parkz | 0:343714a476ac | 7 | if(leds[no]==0) |
Parkz | 0:343714a476ac | 8 | { |
Parkz | 0:343714a476ac | 9 | leds[no]=1; |
Parkz | 0:343714a476ac | 10 | } |
Parkz | 0:343714a476ac | 11 | else |
Parkz | 0:343714a476ac | 12 | { |
Parkz | 0:343714a476ac | 13 | leds[no]=0; |
Parkz | 0:343714a476ac | 14 | } |
Parkz | 0:343714a476ac | 15 | } |
Parkz | 0:343714a476ac | 16 | |
Parkz | 0:343714a476ac | 17 | int main() |
Parkz | 0:343714a476ac | 18 | { |
Parkz | 0:343714a476ac | 19 | int buffer=0; |
Parkz | 0:343714a476ac | 20 | a: |
Parkz | 0:343714a476ac | 21 | pc.printf("\nType numbers 1,2,3,4 to switch respective leds on and off\n"); |
Parkz | 0:343714a476ac | 22 | pc.scanf("%d",&buffer); |
Parkz | 0:343714a476ac | 23 | pc.printf("Its %d\n",buffer); |
Parkz | 0:343714a476ac | 24 | switch(buffer) |
Parkz | 0:343714a476ac | 25 | { |
Parkz | 0:343714a476ac | 26 | case 1:ledon(buffer-1); |
Parkz | 0:343714a476ac | 27 | break; |
Parkz | 0:343714a476ac | 28 | case 2:ledon(buffer-1); |
Parkz | 0:343714a476ac | 29 | break; |
Parkz | 0:343714a476ac | 30 | case 3:ledon(buffer-1); |
Parkz | 0:343714a476ac | 31 | break; |
Parkz | 0:343714a476ac | 32 | case 4:ledon(buffer-1); |
Parkz | 0:343714a476ac | 33 | } |
Parkz | 0:343714a476ac | 34 | goto a; |
Parkz | 0:343714a476ac | 35 | } |
Parkz | 0:343714a476ac | 36 |