main.cpp

00001 // test example for \n \r, sford
00002 // serial loop back - wire p9 to p10
00003 
00004 #include "mbed.h"
00005 
00006 Serial pc(USBTX, USBRX);
00007 Serial loopback(p9, p10);
00008 
00009 // read characters from serial port
00010 void dump() {
00011     wait(0.1);                   // dumb wait to ensure all chars arrived
00012     while(loopback.readable()) { // work through chars
00013         char c = loopback.getc();
00014         if(c == '\n') {
00015             printf("0x%02X LF\n", c);
00016         } else if(c == '\r') {
00017             printf("0x%02X CR\n", c);
00018         } else {
00019             printf("0x%02X %c\n", c, c);
00020         }
00021     }
00022 }
00023 
00024 int main() {
00025     loopback.putc('a');
00026     dump();
00027     loopback.putc('\n');
00028     dump();
00029     loopback.putc('\r');
00030     dump();
00031     loopback.printf("hi\n");
00032     dump();
00033 }