Martin Sturm / Mbed 2 deprecated Project

Dependencies:   mbed

main.cpp@0:2fab16867d73, 2011-11-30 (annotated)

Committer:
XkLi
Date:
Wed Nov 30 18:06:50 2011 +0000
Revision:
0:2fab16867d73
Child:
1:44f0b9d5883b

        

        
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#include <mbed.h>





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#include <mpr121.h>





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#include "strings.h"





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DigitalOut led1(LED1);





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DigitalOut led2(LED2);





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DigitalOut led3(LED3);





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DigitalOut led4(LED4);





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InterruptIn interrupt0(p8); //interrupt pin for touch0





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InterruptIn interrupt1(p21); //interrupt for touch1





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// Setup the i2c bus on pins 9 and 10





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I2C i2c2(p9, p10); // I2C is used by both touch sensors





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I2C i2c(p28, p27); // I2C is used by both touch sensors





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Mpr121 touch1(&i2c, Mpr121::ADD_VSS);//setup touch1 address for vdd





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Mpr121 touch0(&i2c2, Mpr121::ADD_VSS);//setup touch0 address for vss





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//set serial port





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Serial device(p13, p14);  // tx, rx





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Serial pc(USBTX, USBRX);





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unsigned int key_code0;





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unsigned int key_code1;





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// Key hit/release interrupt routine for touch 0





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void fallInterrupt0() {





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  key_code0=0;





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  char i=0;





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  int value=touch0.read(0x00);





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  value +=touch0.read(0x01)<<8;





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  // LED demo mod





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  i=0;





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  // puts key number out to LEDs for demo





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  for (i=0; i<12; i++) {





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  if (((value>>i)&0x01)==1) key_code0=i+1;





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  }





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  led4=key_code0 & 0x01;





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  led3=(key_code0>>1) & 0x01;





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  led2=(key_code0>>2) & 0x01;





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  led1=(key_code0>>3) & 0x01;





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}





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//fall interrupt for touch1





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void fallInterrupt1() {





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  key_code1=0;





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  char i=0;





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  int value=touch1.read(0x00);





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  value +=touch1.read(0x01)<<8;





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  // LED demo mod





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  i=0;





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  // puts key number out to LEDs for demo





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  for (i=0; i<12; i++) {





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  if (((value>>i)&0x01)==1) key_code1=i+1;





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  }





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  led4=key_code1 & 0x01;





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  led3=(key_code1>>1) & 0x01;





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  led2=(key_code1>>2) & 0x01;





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  led1=(key_code1>>3) & 0x01;





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}





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int main() {





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pc.printf("Starting \r\n");





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char *key_buf;//buffer for data transmit to pc via serial





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char frompc=0;





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  device.baud(9600); 





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  interrupt0.fall(&fallInterrupt0);





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  interrupt0.mode(PullUp);





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  interrupt1.fall(&fallInterrupt1);





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  interrupt1.mode(PullUp);





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  while (1) {





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  wait(10);





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  if(device.readable()) //checks if ebox sends request





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  frompc=device.getc();





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  pc.printf(&frompc);//writes received data to pc for testing options





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    switch(device.getc())//read character and check it





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       {





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        case '0':           //if character is '0' send key data from touch 0





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            sprintf(key_buf,"%d",key_code0);





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            device.printf(key_buf);





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            break;





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        case '1':           //if character is '1' send key data from touch 1





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            sprintf(key_buf,"%d",key_code1);





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            device.printf(key_buf);





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            break;





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        case 'A': //case for string value





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        sprintf(key_buf,"%d",Strings());





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        device.printf(key_buf);





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            break;





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        default:





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            break;





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       }





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  pc.printf(key_buf);//writes received data to pc for testing options





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  }





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}