Paul Martin
LED Serial program -- listens for serial input to control the 4 built in LEDS. Packets are of the type \'S_ _ _ _\' (e.g. S0101 to turn on LEDs 2 and 4).
Revision 0:4194d17b08e3, committed 2011-08-02
- Comitter:
- caeng
- Date:
- Tue Aug 02 05:05:15 2011 +0000
- Commit message:
- v1.0
Changed in this revision
| main.cpp | Show annotated file Show diff for this revision Revisions of this file |
| mbed.bld | Show annotated file Show diff for this revision Revisions of this file |
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Tue Aug 02 05:05:15 2011 +0000
@@ -0,0 +1,89 @@
+#include "mbed.h"
+
+// Variables
+DigitalOut led1(LED1);
+DigitalOut led2(LED2);
+DigitalOut led3(LED3);
+DigitalOut led4(LED4);
+Serial pc(USBTX, USBRX);
+Timer t;
+int secTimer;
+
+int main() {
+ // set up
+ pc.baud(38400);
+ led1 = 0;
+ led2 = 0;
+ led3 = 0;
+ led4 = 0;
+ t.start();
+ secTimer = t.read_ms();
+ // serial reading variables
+ char temp;
+
+ while(1) {
+ // check serial
+ if(pc.readable()){
+ temp = pc.getc();
+ if(temp == 'S'){
+ // valid packet, continue parsing
+ while(!pc.readable());
+ temp = pc.getc(); // led1
+ if(temp == '1'){
+ led1 = 1;
+ }else if(temp == '0'){
+ led1 = 0;
+ }
+ while(!pc.readable());
+ temp = pc.getc(); // led2
+ if(temp == '1'){
+ led2 = 1;
+ }else if(temp == '0'){
+ led2 = 0;
+ }
+ while(!pc.readable());
+ temp = pc.getc(); // led3
+ if(temp == '1'){
+ led3 = 1;
+ }else if(temp == '0'){
+ led3 = 0;
+ }
+ while(!pc.readable());
+ temp = pc.getc(); // led4
+ if(temp == '1'){
+ led4 = 1;
+ }else if(temp == '0'){
+ led4 = 0;
+ }
+
+ }
+ }//end of parsing
+
+ //relay status of LEDs to server, in case LEDs weren't set
+ if((t.read_ms()- secTimer) > 1000){
+ secTimer = t.read_ms();
+ pc.putc('S');
+ if(led1.read() == 1){
+ pc.putc('1');
+ }else{
+ pc.putc('0');
+ }
+ if(led2.read() == 1){
+ pc.putc('1');
+ }else{
+ pc.putc('0');
+ }
+ if(led3.read() == 1){
+ pc.putc('1');
+ }else{
+ pc.putc('0');
+ }
+ if(led4.read() == 1){
+ pc.putc('1');
+ }else{
+ pc.putc('0');
+ }
+ }
+ }//end of infinite loop
+
+}//end of main
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Tue Aug 02 05:05:15 2011 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/mbed/builds/63bcd7ba4912