Chris Talbot / Mbed 2 deprecated 19WExample

ELNC-6007-19W example developed in Lecture. Enabling interrupts from DigitalIn and serial port receiver.

Dependencies:   mbed

main.cpp@0:4741f5b28fec, 2019-03-14 (annotated)

Committer:
TheFella
Date:
Thu Mar 14 17:52:24 2019 +0000
Revision:
0:4741f5b28fec
Example for lecture class

Who changed what in which revision?

UserRevisionLine numberNew contents of line
TheFella 0:4741f5b28fec 1 #include "mbed.h"
TheFella 0:4741f5b28fec 2
TheFella 0:4741f5b28fec 3 #define ROWS 10
TheFella 0:4741f5b28fec 4 #define COLS 10
TheFella 0:4741f5b28fec 5 #define BUFSIZE 30
TheFella 0:4741f5b28fec 6 #define TRUE 1
TheFella 0:4741f5b28fec 7 #define FALSE 0
TheFella 0:4741f5b28fec 8
TheFella 0:4741f5b28fec 9 PwmOut spk( p25 );
TheFella 0:4741f5b28fec 10 DigitalIn pb1( p8 );
TheFella 0:4741f5b28fec 11 DigitalIn pb2( p19 );
TheFella 0:4741f5b28fec 12 DigitalIn pb3( p18 );
TheFella 0:4741f5b28fec 13
TheFella 0:4741f5b28fec 14 Serial pc(USBTX, USBRX, 9600);
TheFella 0:4741f5b28fec 15
TheFella 0:4741f5b28fec 16 InterruptIn pb1Int( p8 );
TheFella 0:4741f5b28fec 17
TheFella 0:4741f5b28fec 18 char buffer[ BUFSIZE ];
TheFella 0:4741f5b28fec 19 char *ptr = buffer;
TheFella 0:4741f5b28fec 20 char sentenceReady = FALSE;
TheFella 0:4741f5b28fec 21
TheFella 0:4741f5b28fec 22 void serialISR()
TheFella 0:4741f5b28fec 23 {
TheFella 0:4741f5b28fec 24 int index = 0;
TheFella 0:4741f5b28fec 25 if( pc.readable() )
TheFella 0:4741f5b28fec 26 {
TheFella 0:4741f5b28fec 27 char hold = pc.getc();
TheFella 0:4741f5b28fec 28 if( hold == '$' )
TheFella 0:4741f5b28fec 29 {
TheFella 0:4741f5b28fec 30 for( index = 0; index<BUFSIZE; index++)
TheFella 0:4741f5b28fec 31 {
TheFella 0:4741f5b28fec 32 buffer[ index ] = 0;
TheFella 0:4741f5b28fec 33 }
TheFella 0:4741f5b28fec 34 ptr = buffer;
TheFella 0:4741f5b28fec 35
TheFella 0:4741f5b28fec 36 }
TheFella 0:4741f5b28fec 37 if( hold == '#' )
TheFella 0:4741f5b28fec 38 {
TheFella 0:4741f5b28fec 39 sentenceReady = TRUE;
TheFella 0:4741f5b28fec 40 }
TheFella 0:4741f5b28fec 41 *ptr = hold;
TheFella 0:4741f5b28fec 42 ptr++;
TheFella 0:4741f5b28fec 43 if( ptr >= &buffer[ BUFSIZE ] )
TheFella 0:4741f5b28fec 44 {
TheFella 0:4741f5b28fec 45 ptr = buffer;
TheFella 0:4741f5b28fec 46 }
TheFella 0:4741f5b28fec 47 }
TheFella 0:4741f5b28fec 48 }
TheFella 0:4741f5b28fec 49
TheFella 0:4741f5b28fec 50
TheFella 0:4741f5b28fec 51 void pb1ISR()
TheFella 0:4741f5b28fec 52 {
TheFella 0:4741f5b28fec 53 int row = 0, col = 0;
TheFella 0:4741f5b28fec 54 for( row = 0; row< ROWS; row++ )
TheFella 0:4741f5b28fec 55 {
TheFella 0:4741f5b28fec 56 for( col = 0; col< COLS; col++ )
TheFella 0:4741f5b28fec 57 {
TheFella 0:4741f5b28fec 58 pc.printf("|_");
TheFella 0:4741f5b28fec 59 }
TheFella 0:4741f5b28fec 60 pc.printf("\n\r");
TheFella 0:4741f5b28fec 61 }
TheFella 0:4741f5b28fec 62
TheFella 0:4741f5b28fec 63 }
TheFella 0:4741f5b28fec 64
TheFella 0:4741f5b28fec 65 int main()
TheFella 0:4741f5b28fec 66 {
TheFella 0:4741f5b28fec 67 pb1Int.rise( &pb1ISR );
TheFella 0:4741f5b28fec 68 pc.attach( &serialISR );
TheFella 0:4741f5b28fec 69
TheFella 0:4741f5b28fec 70 while(1)
TheFella 0:4741f5b28fec 71 {
TheFella 0:4741f5b28fec 72 //pc.printf(".\n\r");
TheFella 0:4741f5b28fec 73 //wait(0.5);
TheFella 0:4741f5b28fec 74 if( sentenceReady )
TheFella 0:4741f5b28fec 75 {
TheFella 0:4741f5b28fec 76 pc.printf("%s", buffer);
TheFella 0:4741f5b28fec 77 sentenceReady = FALSE;
TheFella 0:4741f5b28fec 78 }
TheFella 0:4741f5b28fec 79 }
TheFella 0:4741f5b28fec 80 }