RTES / Mbed 2 deprecated rtes_lab1_p4

7 Segment dash dot

Dependencies:   mbed

main.cpp@0:382ba90ab57f, 2015-02-02 (annotated)

Committer:
sandeshkumar
Date:
Mon Feb 02 21:46:26 2015 +0000
Revision:
0:382ba90ab57f
Initial Commit;

Who changed what in which revision?

UserRevisionLine numberNew contents of line
sandeshkumar 0:382ba90ab57f 1 #include "mbed.h"
sandeshkumar 0:382ba90ab57f 2
sandeshkumar 0:382ba90ab57f 3 InterruptIn pin22(p22);
sandeshkumar 0:382ba90ab57f 4 DigitalOut led1(LED1);
sandeshkumar 0:382ba90ab57f 5
sandeshkumar 0:382ba90ab57f 6 DigitalOut dash(p19);
sandeshkumar 0:382ba90ab57f 7 DigitalOut dot(p20);
sandeshkumar 0:382ba90ab57f 8
sandeshkumar 0:382ba90ab57f 9 Timer interruptTimer;
sandeshkumar 0:382ba90ab57f 10 Timer spaceCountTimer;
sandeshkumar 0:382ba90ab57f 11
sandeshkumar 0:382ba90ab57f 12 bool isInterruptTimerRunning = 1;
sandeshkumar 0:382ba90ab57f 13
sandeshkumar 0:382ba90ab57f 14 Serial pc(USBTX, USBRX);//tx, rx
sandeshkumar 0:382ba90ab57f 15
sandeshkumar 0:382ba90ab57f 16 void classify(int elapsedTime) {
sandeshkumar 0:382ba90ab57f 17 if(elapsedTime >= 30 && elapsedTime < 200) {
sandeshkumar 0:382ba90ab57f 18 pc.printf("Dot\t");
sandeshkumar 0:382ba90ab57f 19 dot = 0;
sandeshkumar 0:382ba90ab57f 20 wait(0.05);
sandeshkumar 0:382ba90ab57f 21 dot = 1;
sandeshkumar 0:382ba90ab57f 22
sandeshkumar 0:382ba90ab57f 23 } else if(elapsedTime < 400 && elapsedTime >= 200) {
sandeshkumar 0:382ba90ab57f 24 pc.printf("Dash\t");
sandeshkumar 0:382ba90ab57f 25 dash = 0;
sandeshkumar 0:382ba90ab57f 26 wait(0.05);
sandeshkumar 0:382ba90ab57f 27 dash = 1;
sandeshkumar 0:382ba90ab57f 28 }
sandeshkumar 0:382ba90ab57f 29
sandeshkumar 0:382ba90ab57f 30 }
sandeshkumar 0:382ba90ab57f 31
sandeshkumar 0:382ba90ab57f 32 void checkForSpace(int elapsedTime) {
sandeshkumar 0:382ba90ab57f 33 if(elapsedTime > 400) {
sandeshkumar 0:382ba90ab57f 34 pc.printf("Space\t");
sandeshkumar 0:382ba90ab57f 35 spaceCountTimer.reset();
sandeshkumar 0:382ba90ab57f 36 }
sandeshkumar 0:382ba90ab57f 37
sandeshkumar 0:382ba90ab57f 38 }
sandeshkumar 0:382ba90ab57f 39
sandeshkumar 0:382ba90ab57f 40 void riseLed1() {
sandeshkumar 0:382ba90ab57f 41 // int elapsedTime = spaceCountTimer.read_ms();
sandeshkumar 0:382ba90ab57f 42 // checkForSpace(elapsedTime);
sandeshkumar 0:382ba90ab57f 43 spaceCountTimer.reset();
sandeshkumar 0:382ba90ab57f 44 if(isInterruptTimerRunning) {
sandeshkumar 0:382ba90ab57f 45 interruptTimer.start();
sandeshkumar 0:382ba90ab57f 46 } else {
sandeshkumar 0:382ba90ab57f 47 interruptTimer.reset();
sandeshkumar 0:382ba90ab57f 48 }
sandeshkumar 0:382ba90ab57f 49 led1 = 1;
sandeshkumar 0:382ba90ab57f 50 }
sandeshkumar 0:382ba90ab57f 51
sandeshkumar 0:382ba90ab57f 52 void fallLed1() {
sandeshkumar 0:382ba90ab57f 53 int elapsedTime = interruptTimer.read_ms();
sandeshkumar 0:382ba90ab57f 54 // interruptTimer.stop();
sandeshkumar 0:382ba90ab57f 55 classify(elapsedTime);
sandeshkumar 0:382ba90ab57f 56 isInterruptTimerRunning = 0;
sandeshkumar 0:382ba90ab57f 57 spaceCountTimer.reset();
sandeshkumar 0:382ba90ab57f 58 led1 = 0;
sandeshkumar 0:382ba90ab57f 59 }
sandeshkumar 0:382ba90ab57f 60
sandeshkumar 0:382ba90ab57f 61 int main() {
sandeshkumar 0:382ba90ab57f 62
sandeshkumar 0:382ba90ab57f 63 spaceCountTimer.start();
sandeshkumar 0:382ba90ab57f 64 pc.baud(9600);
sandeshkumar 0:382ba90ab57f 65
sandeshkumar 0:382ba90ab57f 66 dot = 1;
sandeshkumar 0:382ba90ab57f 67 dash = 1;
sandeshkumar 0:382ba90ab57f 68
sandeshkumar 0:382ba90ab57f 69 int elapsedTime;
sandeshkumar 0:382ba90ab57f 70
sandeshkumar 0:382ba90ab57f 71 pin22.rise(&riseLed1); // attach the address of the flip function to the rising edge
sandeshkumar 0:382ba90ab57f 72 pin22.fall(&fallLed1);
sandeshkumar 0:382ba90ab57f 73 while(1) { // wait around, interrupts will interrupt this!
sandeshkumar 0:382ba90ab57f 74 // wait(0.1);
sandeshkumar 0:382ba90ab57f 75 elapsedTime = spaceCountTimer.read_ms();
sandeshkumar 0:382ba90ab57f 76 checkForSpace(elapsedTime);
sandeshkumar 0:382ba90ab57f 77 }
sandeshkumar 0:382ba90ab57f 78
sandeshkumar 0:382ba90ab57f 79
sandeshkumar 0:382ba90ab57f 80 }