William Marsh / Mbed OS serial-demo

Test program for serial interface

This program turns the red LED on and then waits for a character to be entered at the terminal. The LED then goes off for 500ms before the cycle repeats.

The purpose of the program is to demonstrate the use of the serial link

main.cpp@2:e92d97ac59e4, 2018-01-13 (annotated)

Committer:
WilliamMarshQMUL
Date:
Sat Jan 13 18:34:58 2018 +0000
Revision:
2:e92d97ac59e4
Parent:
1:961580c296da
Child:
3:5b27b27e68ab
Converted to mbed 5

Who changed what in which revision?

UserRevisionLine numberNew contents of line
WilliamMarshQMUL 2:e92d97ac59e4 1 // Serial demo using mbed 5
WilliamMarshQMUL 2:e92d97ac59e4 2
WilliamMarshQMUL 0:75835b5692b9 3 #include "mbed.h"
WilliamMarshQMUL 0:75835b5692b9 4
WilliamMarshQMUL 0:75835b5692b9 5 DigitalOut myled(LED1);
WilliamMarshQMUL 0:75835b5692b9 6 Serial pc(USBTX, USBRX); // tx, rx
WilliamMarshQMUL 0:75835b5692b9 7
WilliamMarshQMUL 0:75835b5692b9 8 int main() {
WilliamMarshQMUL 0:75835b5692b9 9 char c ;
WilliamMarshQMUL 0:75835b5692b9 10 pc.printf("Enter a character>");
WilliamMarshQMUL 0:75835b5692b9 11 while(1) {
WilliamMarshQMUL 0:75835b5692b9 12 myled = 0; // turn on
WilliamMarshQMUL 0:75835b5692b9 13 c = pc.getc();
WilliamMarshQMUL 0:75835b5692b9 14 myled = 1; // turn off
WilliamMarshQMUL 0:75835b5692b9 15 pc.putc(c);
WilliamMarshQMUL 1:961580c296da 16 pc.putc('\r');
WilliamMarshQMUL 0:75835b5692b9 17 pc.putc('\n');
WilliamMarshQMUL 0:75835b5692b9 18 Thread::wait(500);
WilliamMarshQMUL 0:75835b5692b9 19 pc.printf("Enter a character>");
WilliamMarshQMUL 0:75835b5692b9 20 }
WilliamMarshQMUL 0:75835b5692b9 21 }