GR_Peach_Abhinav_Rahul / Mbed 2 deprecated serial_pc

This is single way communication with the PC

Dependencies:   mbed

main.cpp@1:dad12410fd2d, 2016-12-28 (annotated)

Committer:
akverma
Date:
Wed Dec 28 22:59:38 2016 +0000
Revision:
1:dad12410fd2d
Parent:
0:5d7b0ed9dcc9 
Serial communication both way, complete package.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
RahulSitaram 0:5d7b0ed9dcc9 1 #include "mbed.h"
RahulSitaram 0:5d7b0ed9dcc9 2
RahulSitaram 0:5d7b0ed9dcc9 3 DigitalOut led1(LED1);
RahulSitaram 0:5d7b0ed9dcc9 4 DigitalOut led2(LED2);
akverma 1:dad12410fd2d 5 uint8_t data;
RahulSitaram 0:5d7b0ed9dcc9 6 Serial pc(USBTX, USBRX);
RahulSitaram 0:5d7b0ed9dcc9 7
akverma 1:dad12410fd2d 8 uint8_t take_read()
akverma 1:dad12410fd2d 9 {
akverma 1:dad12410fd2d 10 char c;
akverma 1:dad12410fd2d 11 int len;
akverma 1:dad12410fd2d 12 char buffer[128];
akverma 1:dad12410fd2d 13 pc.gets(buffer, 1024);
akverma 1:dad12410fd2d 14 len=strlen(buffer)-1;
akverma 1:dad12410fd2d 15 if (buffer[len] == '\n')
akverma 1:dad12410fd2d 16 buffer[len] = '\0';
akverma 1:dad12410fd2d 17 c = atoi(buffer);
akverma 1:dad12410fd2d 18 return c;
akverma 1:dad12410fd2d 19 //pc.printf(" I got '%s' of length '%d', in hex is '%x'\n", buffer, len, c);
RahulSitaram 0:5d7b0ed9dcc9 20 }
RahulSitaram 0:5d7b0ed9dcc9 21
RahulSitaram 0:5d7b0ed9dcc9 22 int main() {
akverma 1:dad12410fd2d 23 uint8_t read_value;
akverma 1:dad12410fd2d 24 pc.printf("Hello World!\n");
akverma 1:dad12410fd2d 25 while(1)
akverma 1:dad12410fd2d 26 {
akverma 1:dad12410fd2d 27 read_value = take_read();
akverma 1:dad12410fd2d 28 pc.printf("I got '%X'\n", read_value);
RahulSitaram 0:5d7b0ed9dcc9 29 }
akverma 1:dad12410fd2d 30 }
akverma 1:dad12410fd2d 31 /* When you read 1024 bytes(max) the last byte is reserved for '\0' so only 1023 bytes will be read anyway.
akverma 1:dad12410fd2d 32 Furthermore '\n' and '\r' are counted with measuring length but '\0' is not counted.
akverma 1:dad12410fd2d 33 You can replace '\n' by '\0' and not send '\r' at all.*/