Chaitanya Viswa / Mbed 2 deprecated BAE_SEM5

Important changes to repositories hosted on mbed.com

Mbed hosted mercurial repositories are deprecated and are due to be permanently deleted in July 2026.

To keep a copy of this software download the repository Zip archive or clone locally using Mercurial.

It is also possible to export all your personal repositories from the account settings page.

Dependencies:   mbed-rtos mbed

Fork of all_combined_week6 by green rosh

slave.cpp@4:79b97f9cab00, 2014-07-12 (annotated)

Committer:
greenroshks
Date:
Sat Jul 12 07:26:06 2014 +0000
Revision:
4:79b97f9cab00
Parent:
3:9b597ed04ef4
Child:
6:82153349cc9b
Version (may be) final

Who changed what in which revision?

UserRevisionLine numberNew contents of line
harshit_felicity 0:cbe0ea884289 1 #include "slave.h"
greenroshks 3:9b597ed04ef4 2 #include "HK.h"
greenroshks 3:9b597ed04ef4 3
greenroshks 4:79b97f9cab00 4 extern struct SensorData Sensor;
harshit_felicity 0:cbe0ea884289 5 I2CSlave slave(p28,p27); //configuring pins p27, p28 as I2Cslave
greenroshks 3:9b597ed04ef4 6 Serial screen (USBTX,USBRX);
harshit_felicity 0:cbe0ea884289 7 void write_to_master(char send) //function to write data to master
harshit_felicity 0:cbe0ea884289 8 {
harshit_felicity 0:cbe0ea884289 9 int acknowledge;
greenroshks 3:9b597ed04ef4 10 int loopvariable4=1;
greenroshks 3:9b597ed04ef4 11 while(loopvariable4)
greenroshks 3:9b597ed04ef4 12 {
harshit_felicity 0:cbe0ea884289 13 acknowledge = slave.write(send); //sending the byte to master
harshit_felicity 0:cbe0ea884289 14 if(acknowledge==1)
harshit_felicity 0:cbe0ea884289 15 {
greenroshks 3:9b597ed04ef4 16 screen.printf(" acknowledge %d sent %x \n",acknowledge,send);
greenroshks 3:9b597ed04ef4 17 loopvariable4=0;
harshit_felicity 0:cbe0ea884289 18 }
greenroshks 3:9b597ed04ef4 19 }
harshit_felicity 0:cbe0ea884289 20 }
harshit_felicity 0:cbe0ea884289 21
greenroshks 3:9b597ed04ef4 22
greenroshks 3:9b597ed04ef4 23
greenroshks 3:9b597ed04ef4 24
greenroshks 3:9b597ed04ef4 25 void FUNC_I2C_SLAVE_MAIN(int iterations)
harshit_felicity 0:cbe0ea884289 26 {
harshit_felicity 0:cbe0ea884289 27 wait(0.5);
greenroshks 3:9b597ed04ef4 28 screen.printf("\nSlave entered\n");
greenroshks 3:9b597ed04ef4 29 slave.address(slave_address); //assigning slave address
greenroshks 3:9b597ed04ef4 30 char Switch_Variable;
greenroshks 3:9b597ed04ef4 31
greenroshks 3:9b597ed04ef4 32
harshit_felicity 0:cbe0ea884289 33 int loopvariable1=1;
harshit_felicity 0:cbe0ea884289 34 int loopvariable2=0;
greenroshks 3:9b597ed04ef4 35 int loopvariable3=1;
harshit_felicity 0:cbe0ea884289 36 //initialising dummy sensor data
greenroshks 3:9b597ed04ef4 37
harshit_felicity 0:cbe0ea884289 38 while(loopvariable1)
harshit_felicity 0:cbe0ea884289 39 {
harshit_felicity 0:cbe0ea884289 40 //to read data from master
harshit_felicity 0:cbe0ea884289 41 if(slave.receive()==WriteGeneral) //checking if slave is addressed to write
harshit_felicity 0:cbe0ea884289 42 {
harshit_felicity 0:cbe0ea884289 43 Switch_Variable=slave.read(); //receiving data
greenroshks 3:9b597ed04ef4 44 screen.printf("switch variable=%d\n",Switch_Variable);
harshit_felicity 0:cbe0ea884289 45 slave.stop(); //reset slave to default receiving state
harshit_felicity 0:cbe0ea884289 46 loopvariable1=0;
harshit_felicity 0:cbe0ea884289 47 //to interpret and write data to master
harshit_felicity 0:cbe0ea884289 48 switch(Switch_Variable)
harshit_felicity 0:cbe0ea884289 49 {
harshit_felicity 0:cbe0ea884289 50
greenroshks 3:9b597ed04ef4 51 case '1': while(loopvariable3)
greenroshks 3:9b597ed04ef4 52 {
harshit_felicity 0:cbe0ea884289 53 if(slave.receive()==ReadAddressed) //check if slave is addressed to read
harshit_felicity 0:cbe0ea884289 54 {
greenroshks 3:9b597ed04ef4 55 while(loopvariable2<iterations)
greenroshks 3:9b597ed04ef4 56 {
harshit_felicity 0:cbe0ea884289 57 if(loopvariable2%3==0)
harshit_felicity 0:cbe0ea884289 58 {
greenroshks 3:9b597ed04ef4 59 screen.printf("\nvoltage%d\n",loopvariable2/3);
greenroshks 3:9b597ed04ef4 60 write_to_master(Sensor.Voltage[loopvariable2/3]);
harshit_felicity 0:cbe0ea884289 61 }
harshit_felicity 0:cbe0ea884289 62 else if(loopvariable2%3==1)
harshit_felicity 0:cbe0ea884289 63 {
greenroshks 3:9b597ed04ef4 64 screen.printf("\ncurrent%d\n",loopvariable2/3);
greenroshks 3:9b597ed04ef4 65 write_to_master(Sensor.Current[loopvariable2/3]);
harshit_felicity 0:cbe0ea884289 66 }
harshit_felicity 0:cbe0ea884289 67 else if(loopvariable2%3==2)
harshit_felicity 0:cbe0ea884289 68 {
greenroshks 3:9b597ed04ef4 69 screen.printf("\ntemp%d\n",loopvariable2/3);
greenroshks 3:9b597ed04ef4 70 write_to_master(Sensor.Temperature[loopvariable2/3]);
harshit_felicity 0:cbe0ea884289 71 }
harshit_felicity 0:cbe0ea884289 72 loopvariable2++;
greenroshks 3:9b597ed04ef4 73 }//while(loopvariable2<30)
greenroshks 3:9b597ed04ef4 74 slave.stop();
greenroshks 3:9b597ed04ef4 75 loopvariable3=0;
greenroshks 3:9b597ed04ef4 76 }//if(read addressed)
greenroshks 3:9b597ed04ef4 77
greenroshks 3:9b597ed04ef4 78 }//while(loopvariable3)
greenroshks 3:9b597ed04ef4 79
harshit_felicity 0:cbe0ea884289 80 break;
greenroshks 3:9b597ed04ef4 81 case '2' : screen.printf(" telecommand 2\n");
harshit_felicity 0:cbe0ea884289 82 break;
harshit_felicity 0:cbe0ea884289 83
harshit_felicity 0:cbe0ea884289 84 }//switch case ends
harshit_felicity 0:cbe0ea884289 85 }
harshit_felicity 0:cbe0ea884289 86 }
greenroshks 3:9b597ed04ef4 87 screen.printf("done");
harshit_felicity 0:cbe0ea884289 88 }
greenroshks 3:9b597ed04ef4 89