Austin Blackstone / Mbed 2 deprecated SerialPassthrough

This program turns the mbed device into a serial passthrough. This is useful for imitating a FTDI chip. Any commands sent from the PC to the mbed board will be forwarded on to the serial device attached, and any commands coming from the serial device will be forwarded to the PC. Make sure to change the speeds to match your serial device.

Dependencies:   mbed

main.cpp@0:59bec1fd956e, 2015-04-24 (annotated)

Committer:
mbedAustin
Date:
Fri Apr 24 15:34:17 2015 +0000
Revision:
0:59bec1fd956e
Child:
1:a76360ca4001
polling complete, works with ESP8266

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbedAustin 0:59bec1fd956e 1 #include "mbed.h"
mbedAustin 0:59bec1fd956e 2
mbedAustin 0:59bec1fd956e 3 Serial pc(USBTX, USBRX); // computer to mbed board
mbedAustin 0:59bec1fd956e 4 Serial esp(D1, D0); // mbed board to target board
mbedAustin 0:59bec1fd956e 5 DigitalOut rst(D10);
mbedAustin 0:59bec1fd956e 6
mbedAustin 0:59bec1fd956e 7 int
mbedAustin 0:59bec1fd956e 8 main(){
mbedAustin 0:59bec1fd956e 9 pc.baud(9600);
mbedAustin 0:59bec1fd956e 10 esp.baud(9600);
mbedAustin 0:59bec1fd956e 11 pc.printf("\r\n########### ready ###########\r\n");
mbedAustin 0:59bec1fd956e 12 //esp.printf("AT+RST\r\n");
mbedAustin 0:59bec1fd956e 13 rst = 0;
mbedAustin 0:59bec1fd956e 14 wait(0.1);
mbedAustin 0:59bec1fd956e 15 rst = 1;
mbedAustin 0:59bec1fd956e 16 while(1) {
mbedAustin 0:59bec1fd956e 17 if(pc.readable()) {
mbedAustin 0:59bec1fd956e 18 char c = pc.getc();
mbedAustin 0:59bec1fd956e 19 //pc.putc(c); // echo character back to computer for sanity
mbedAustin 0:59bec1fd956e 20 //if(c == '\r'){
mbedAustin 0:59bec1fd956e 21 // esp.printf("\r\n");
mbedAustin 0:59bec1fd956e 22 // }
mbedAustin 0:59bec1fd956e 23 // else{
mbedAustin 0:59bec1fd956e 24 esp.putc(c);
mbedAustin 0:59bec1fd956e 25 // }
mbedAustin 0:59bec1fd956e 26 }
mbedAustin 0:59bec1fd956e 27 if(esp.readable()) {
mbedAustin 0:59bec1fd956e 28 char c = esp.getc();
mbedAustin 0:59bec1fd956e 29 //if(c == '\n'){
mbedAustin 0:59bec1fd956e 30 // pc.printf("\\n");
mbedAustin 0:59bec1fd956e 31 // }
mbedAustin 0:59bec1fd956e 32 // if(c == '\r'){
mbedAustin 0:59bec1fd956e 33 // pc.printf("\\r");
mbedAustin 0:59bec1fd956e 34 // }
mbedAustin 0:59bec1fd956e 35
mbedAustin 0:59bec1fd956e 36 pc.putc(c);
mbedAustin 0:59bec1fd956e 37 }
mbedAustin 0:59bec1fd956e 38 }
mbedAustin 0:59bec1fd956e 39 }