sakthi priya amirtharaj / Mbed 2 deprecated slave_working1_1

i2c slave working version 1.1

Dependencies:   mbed-rtos mbed

Fork of slave_i2c3 by sakthi priya amirtharaj

main.cpp@3:5e68dd4bbb70, 2014-12-10 (annotated)

Committer:
greenroshks
Date:
Wed Dec 10 05:21:50 2014 +0000
Revision:
3:5e68dd4bbb70
Parent:
2:458f9e603814
Child:
4:133b49d51b18
slave code combined

Who changed what in which revision?

UserRevisionLine numberNew contents of line
viswachaitanya 0:24e80ff2c7b1 1 #include "mbed.h"
viswachaitanya 0:24e80ff2c7b1 2
viswachaitanya 0:24e80ff2c7b1 3 void write_to_master(char); //function to write data to master
viswachaitanya 0:24e80ff2c7b1 4
viswachaitanya 0:24e80ff2c7b1 5 I2CSlave slave(D14,D15); //configuring pins p27, p28 as I2Cslave
viswachaitanya 0:24e80ff2c7b1 6 Serial pc (USBTX,USBRX);
greenroshks 2:458f9e603814 7 InterruptIn interrupt(D9);
greenroshks 3:5e68dd4bbb70 8 void FUNC_I2C_WRITE2CDMS(char * data,int length)
greenroshks 2:458f9e603814 9 {
viswachaitanya 0:24e80ff2c7b1 10
greenroshks 2:458f9e603814 11 int slave_status = 1;
greenroshks 2:458f9e603814 12 while(slave_status)
greenroshks 2:458f9e603814 13 {
viswachaitanya 0:24e80ff2c7b1 14 slave.address(0x20);
greenroshks 2:458f9e603814 15 if(slave.receive()==1)
greenroshks 2:458f9e603814 16 {
greenroshks 3:5e68dd4bbb70 17 slave_status=slave.write(data,length);
greenroshks 3:5e68dd4bbb70 18 // printf("\n In the while loop\n");
greenroshks 2:458f9e603814 19
greenroshks 3:5e68dd4bbb70 20 /* if(!slave_status)
greenroshks 2:458f9e603814 21 {
greenroshks 3:5e68dd4bbb70 22 printf("slave wrote %c to master\n\r",*data);
greenroshks 2:458f9e603814 23
greenroshks 3:5e68dd4bbb70 24 }*/
greenroshks 2:458f9e603814 25
viswachaitanya 0:24e80ff2c7b1 26 }
greenroshks 3:5e68dd4bbb70 27 else
greenroshks 3:5e68dd4bbb70 28 if(slave.receive()==3 || slave.receive()==2)
greenroshks 3:5e68dd4bbb70 29 {
greenroshks 3:5e68dd4bbb70 30 slave_status=slave.read(data,length);
greenroshks 3:5e68dd4bbb70 31 /*if(!slave_status)
greenroshks 3:5e68dd4bbb70 32 {
greenroshks 3:5e68dd4bbb70 33 printf("1 read %c from master\n\r",*data);
greenroshks 3:5e68dd4bbb70 34 }*/
greenroshks 3:5e68dd4bbb70 35 }
greenroshks 2:458f9e603814 36 //slave.stop();
greenroshks 2:458f9e603814 37 }
viswachaitanya 0:24e80ff2c7b1 38 printf("2 done");
greenroshks 2:458f9e603814 39 }
greenroshks 2:458f9e603814 40
greenroshks 3:5e68dd4bbb70 41 /*void FUNC_I2C_READFCDMS()
greenroshks 2:458f9e603814 42
greenroshks 2:458f9e603814 43 {
greenroshks 2:458f9e603814 44 printf("\nEntered slave code\n");
greenroshks 2:458f9e603814 45 //read_loop=true;
greenroshks 2:458f9e603814 46 char *data_rec = new char;
greenroshks 2:458f9e603814 47 int slave_status =1;
greenroshks 2:458f9e603814 48
greenroshks 2:458f9e603814 49 slave.address(0x20);
greenroshks 2:458f9e603814 50
greenroshks 2:458f9e603814 51
greenroshks 2:458f9e603814 52
greenroshks 2:458f9e603814 53 printf("\nentered slave while loop\n");
greenroshks 2:458f9e603814 54 //if(slave.receive()==3)
greenroshks 2:458f9e603814 55 while(slave_status==1)
greenroshks 2:458f9e603814 56 slave_status=slave.read(data_rec,1);
greenroshks 2:458f9e603814 57
greenroshks 2:458f9e603814 58 if(slave_status==0){printf("1 read %c from master\n\r",*data_rec);}
greenroshks 2:458f9e603814 59 // read_loop = false;}
greenroshks 2:458f9e603814 60
greenroshks 2:458f9e603814 61 printf("\n done \n \r");
greenroshks 2:458f9e603814 62
greenroshks 2:458f9e603814 63 delete data_rec;
raizel_varun 1:4c71a7675750 64
greenroshks 2:458f9e603814 65 }
greenroshks 3:5e68dd4bbb70 66 */
greenroshks 2:458f9e603814 67 void main()
greenroshks 2:458f9e603814 68 {
greenroshks 2:458f9e603814 69 printf("\nStarted slave... waiting for master\n");
greenroshks 3:5e68dd4bbb70 70 char * data = new char;
greenroshks 3:5e68dd4bbb70 71 *data = 'a';
greenroshks 2:458f9e603814 72
greenroshks 2:458f9e603814 73 while(1)
greenroshks 2:458f9e603814 74 {
greenroshks 2:458f9e603814 75 //*(data_send)=pc.getc();
greenroshks 2:458f9e603814 76
greenroshks 3:5e68dd4bbb70 77 FUNC_I2C_WRITE2CDMS(data,1);
greenroshks 3:5e68dd4bbb70 78 printf("\n The data send or received by slave is %c\n",*data);
greenroshks 3:5e68dd4bbb70 79 (*data)++;
greenroshks 2:458f9e603814 80 //wait(1);
greenroshks 2:458f9e603814 81 }
greenroshks 2:458f9e603814 82 }