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

Committer:
mbedAustin
Date:
2015-04-24
Revision:
1:a76360ca4001
Parent:
0:59bec1fd956e
Child:
2:a8dcb07a1d00

File content as of revision 1:a76360ca4001:

#include "mbed.h"
 
// Program to use the  mbed as a serial bridge
//
Serial pc(USBTX, USBRX); // tx, rx
Serial dev(D1, D0); // tx, rx
 
void send() {
    while (pc.readable()) {
        dev.putc(pc.getc());
    }
}
 
void recv() {
    pc.putc(dev.getc());
}
 
int main() {
    char c;
    
    // PC serial     
    pc.baud(9600);
    pc.attach(send, Serial::RxIrq);
    
    // Device serial 
    dev.baud(9600);   // LS20031 57600 
 
    //dev.printf("$PMTK314,5,5,5,5,0,0,0,0,0,0,0,0,0,0,0,0,5*2D\r\n");
    //dev.printf("$PMTK103*30\r\n");
    wait(0.1);
    dev.printf("AT+RST\r\n");
    while(1) {
    
        c = dev.getc();
        pc.putc(c);
 
    }
 
}