Chaitanya Viswa / Mbed 2 deprecated green_BAE_all_combined_week6

working code of bae with i2c

Dependencies:   mbed-rtos mbed

Fork of all_combined_week6 by green rosh

slave.cpp@7:47e07755d9a4, 2014-09-18 (annotated)

Committer:
viswachaitanya
Date:
Thu Sep 18 10:29:33 2014 +0000
Revision:
7:47e07755d9a4
Parent:
6:82153349cc9b 
working bae code with i2c

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);
viswachaitanya 7:47e07755d9a4 7
viswachaitanya 7:47e07755d9a4 8
viswachaitanya 7:47e07755d9a4 9 //#include "slave.h"
viswachaitanya 7:47e07755d9a4 10 //I2CSlave slave(p28,p27); //configuring pins p27, p28 as I2Cslave
viswachaitanya 7:47e07755d9a4 11 //Serial pc (USBTX,USBRX);
viswachaitanya 7:47e07755d9a4 12 //SensorData Sensor;
viswachaitanya 7:47e07755d9a4 13 /*struct SensorData //HK_data_structure
viswachaitanya 7:47e07755d9a4 14 {
viswachaitanya 7:47e07755d9a4 15 char voltage[10];
viswachaitanya 7:47e07755d9a4 16 char current[10];
viswachaitanya 7:47e07755d9a4 17 char temp[10];
viswachaitanya 7:47e07755d9a4 18 }Sensor;*/
viswachaitanya 7:47e07755d9a4 19
viswachaitanya 7:47e07755d9a4 20 int FUNC_I2C_SLAVE_MAIN(int iterations)
viswachaitanya 7:47e07755d9a4 21 {
viswachaitanya 7:47e07755d9a4 22
viswachaitanya 7:47e07755d9a4 23 wait(0.5);
viswachaitanya 7:47e07755d9a4 24 slave.address(0x20); //assigning slave address
viswachaitanya 7:47e07755d9a4 25 slave.stop();
viswachaitanya 7:47e07755d9a4 26 char Switch_Variable;
viswachaitanya 7:47e07755d9a4 27 int ReadAddressed=1;
viswachaitanya 7:47e07755d9a4 28 int WriteGeneral=3;
viswachaitanya 7:47e07755d9a4 29 bool loopvariable1=true;
viswachaitanya 7:47e07755d9a4 30 uint8_t loopvariable2=0;
viswachaitanya 7:47e07755d9a4 31 bool loopvariable3=true;
viswachaitanya 7:47e07755d9a4 32 //---------------initialising dummy sensor data-----------------------------------------------------------
viswachaitanya 7:47e07755d9a4 33 Sensor.Voltage[0]='a';Sensor.Current[0]='1';Sensor.Temperature[0]='k';
viswachaitanya 7:47e07755d9a4 34 Sensor.Voltage[1]='b';Sensor.Current[1]='2';Sensor.Temperature[1]='l';
viswachaitanya 7:47e07755d9a4 35 Sensor.Voltage[2]='c';Sensor.Current[2]='3';Sensor.Temperature[2]='m';
viswachaitanya 7:47e07755d9a4 36 Sensor.Voltage[3]='d';Sensor.Current[3]='4';Sensor.Temperature[3]='n';
viswachaitanya 7:47e07755d9a4 37 Sensor.Voltage[4]='e';Sensor.Current[4]='5';Sensor.Temperature[4]='o';
viswachaitanya 7:47e07755d9a4 38 Sensor.Voltage[5]='f';Sensor.Current[5]='1';Sensor.Temperature[5]='p';
viswachaitanya 7:47e07755d9a4 39 Sensor.Voltage[6]='g';Sensor.Current[6]='2';Sensor.Temperature[6]='q';
viswachaitanya 7:47e07755d9a4 40 Sensor.Voltage[7]='h';Sensor.Current[7]='3';Sensor.Temperature[7]='r';
viswachaitanya 7:47e07755d9a4 41 while(loopvariable1)
viswachaitanya 7:47e07755d9a4 42 {
viswachaitanya 7:47e07755d9a4 43 //------------------------to read data from master---------------------------------------------------------
viswachaitanya 7:47e07755d9a4 44 if(slave.receive()==WriteGeneral) //checking if slave is addressed to write
viswachaitanya 7:47e07755d9a4 45 {
viswachaitanya 7:47e07755d9a4 46 Switch_Variable=slave.read(); //receiving data
viswachaitanya 7:47e07755d9a4 47 printf("switch variable=%d\n",Switch_Variable);
viswachaitanya 7:47e07755d9a4 48 slave.stop(); //reset slave to default receiving state
viswachaitanya 7:47e07755d9a4 49 loopvariable1=false;
viswachaitanya 7:47e07755d9a4 50 //----------------------to interpret and write data to master----------------------------------------------
viswachaitanya 7:47e07755d9a4 51 switch(Switch_Variable)
viswachaitanya 7:47e07755d9a4 52 {
viswachaitanya 7:47e07755d9a4 53
viswachaitanya 7:47e07755d9a4 54 case '1': while(loopvariable3)
viswachaitanya 7:47e07755d9a4 55 {
viswachaitanya 7:47e07755d9a4 56 if(slave.receive()==ReadAddressed) //check if slave is addressed to read
viswachaitanya 7:47e07755d9a4 57 {
viswachaitanya 7:47e07755d9a4 58 loopvariable3=false;
viswachaitanya 7:47e07755d9a4 59 while(loopvariable2<8) //running loop for sending 30 sensors data
viswachaitanya 7:47e07755d9a4 60 {
viswachaitanya 7:47e07755d9a4 61 printf("\nvoltage%d\n",loopvariable2);
viswachaitanya 7:47e07755d9a4 62 write_to_master(Sensor.Voltage[loopvariable2]); //calling function to send float data
viswachaitanya 7:47e07755d9a4 63
viswachaitanya 7:47e07755d9a4 64 printf("\ncurrent%d\n",loopvariable2);
viswachaitanya 7:47e07755d9a4 65 write_to_master(Sensor.Current[loopvariable2]); //calling function to send float data
viswachaitanya 7:47e07755d9a4 66
viswachaitanya 7:47e07755d9a4 67 printf("\ntemp%d\n",loopvariable2);
viswachaitanya 7:47e07755d9a4 68 write_to_master(Sensor.Temperature[loopvariable2]); //calling function to send float data
viswachaitanya 7:47e07755d9a4 69
viswachaitanya 7:47e07755d9a4 70 loopvariable2++;
viswachaitanya 7:47e07755d9a4 71 }
viswachaitanya 7:47e07755d9a4 72
viswachaitanya 7:47e07755d9a4 73 }
viswachaitanya 7:47e07755d9a4 74
viswachaitanya 7:47e07755d9a4 75 }
viswachaitanya 7:47e07755d9a4 76 break;
viswachaitanya 7:47e07755d9a4 77 case '2' : printf(" telecommand 2\n");
viswachaitanya 7:47e07755d9a4 78 break;
viswachaitanya 7:47e07755d9a4 79
viswachaitanya 7:47e07755d9a4 80 }
viswachaitanya 7:47e07755d9a4 81 }
viswachaitanya 7:47e07755d9a4 82 }
viswachaitanya 7:47e07755d9a4 83 slave.stop();
viswachaitanya 7:47e07755d9a4 84 printf("done");
viswachaitanya 7:47e07755d9a4 85 }
viswachaitanya 7:47e07755d9a4 86
viswachaitanya 7:47e07755d9a4 87 //------------------function to write data to master---------------------------------------------------
viswachaitanya 7:47e07755d9a4 88 void write_to_master(char send)
viswachaitanya 7:47e07755d9a4 89 {
viswachaitanya 7:47e07755d9a4 90 bool acknowledge;
viswachaitanya 7:47e07755d9a4 91 bool loopvariable4=true;
viswachaitanya 7:47e07755d9a4 92 while(loopvariable4)
viswachaitanya 7:47e07755d9a4 93 {
viswachaitanya 7:47e07755d9a4 94 acknowledge = (bool) slave.write(send); //sending the byte to master
viswachaitanya 7:47e07755d9a4 95 if(acknowledge) //breaking loop if data is acknowledged
viswachaitanya 7:47e07755d9a4 96 {
viswachaitanya 7:47e07755d9a4 97 printf(" acknowledge %d sent %x \n",acknowledge,send);
viswachaitanya 7:47e07755d9a4 98 loopvariable4 = false;
viswachaitanya 7:47e07755d9a4 99 }
viswachaitanya 7:47e07755d9a4 100 }
viswachaitanya 7:47e07755d9a4 101 }
viswachaitanya 7:47e07755d9a4 102
viswachaitanya 7:47e07755d9a4 103
viswachaitanya 7:47e07755d9a4 104
viswachaitanya 7:47e07755d9a4 105
viswachaitanya 7:47e07755d9a4 106
viswachaitanya 7:47e07755d9a4 107
viswachaitanya 7:47e07755d9a4 108
viswachaitanya 7:47e07755d9a4 109 /*void write_to_master(char send) //function to write data to master
harshit_felicity 0:cbe0ea884289 110 {
harshit_felicity 0:cbe0ea884289 111 int acknowledge;
greenroshks 3:9b597ed04ef4 112 int loopvariable4=1;
greenroshks 3:9b597ed04ef4 113 while(loopvariable4)
greenroshks 3:9b597ed04ef4 114 {
harshit_felicity 0:cbe0ea884289 115 acknowledge = slave.write(send); //sending the byte to master
harshit_felicity 0:cbe0ea884289 116 if(acknowledge==1)
harshit_felicity 0:cbe0ea884289 117 {
viswachaitanya 7:47e07755d9a4 118 printf(" acknowledge %d sent %u \n",acknowledge,send);
greenroshks 3:9b597ed04ef4 119 loopvariable4=0;
harshit_felicity 0:cbe0ea884289 120 }
greenroshks 3:9b597ed04ef4 121 }
harshit_felicity 0:cbe0ea884289 122 }
harshit_felicity 0:cbe0ea884289 123
greenroshks 3:9b597ed04ef4 124
greenroshks 3:9b597ed04ef4 125
greenroshks 3:9b597ed04ef4 126
greenroshks 3:9b597ed04ef4 127 void FUNC_I2C_SLAVE_MAIN(int iterations)
harshit_felicity 0:cbe0ea884289 128 {
viswachaitanya 7:47e07755d9a4 129 // slave.stop();
viswachaitanya 7:47e07755d9a4 130 printf("\nSlave entered\n");
greenroshks 3:9b597ed04ef4 131 slave.address(slave_address); //assigning slave address
greenroshks 3:9b597ed04ef4 132 char Switch_Variable;
greenroshks 3:9b597ed04ef4 133
greenroshks 3:9b597ed04ef4 134
harshit_felicity 0:cbe0ea884289 135 int loopvariable1=1;
harshit_felicity 0:cbe0ea884289 136 int loopvariable2=0;
greenroshks 3:9b597ed04ef4 137 int loopvariable3=1;
harshit_felicity 0:cbe0ea884289 138 //initialising dummy sensor data
greenroshks 3:9b597ed04ef4 139
harshit_felicity 0:cbe0ea884289 140 while(loopvariable1)
harshit_felicity 0:cbe0ea884289 141 {
viswachaitanya 7:47e07755d9a4 142 // slave.stop();
viswachaitanya 7:47e07755d9a4 143 //to read data from master
viswachaitanya 7:47e07755d9a4 144 printf("not receiving\n");
harshit_felicity 0:cbe0ea884289 145 if(slave.receive()==WriteGeneral) //checking if slave is addressed to write
harshit_felicity 0:cbe0ea884289 146 {
harshit_felicity 0:cbe0ea884289 147 Switch_Variable=slave.read(); //receiving data
viswachaitanya 7:47e07755d9a4 148 printf("switch variable=%d\n",Switch_Variable);
harshit_felicity 0:cbe0ea884289 149 slave.stop(); //reset slave to default receiving state
harshit_felicity 0:cbe0ea884289 150 loopvariable1=0;
harshit_felicity 0:cbe0ea884289 151 //to interpret and write data to master
harshit_felicity 0:cbe0ea884289 152 switch(Switch_Variable)
harshit_felicity 0:cbe0ea884289 153 {
greenroshks 6:82153349cc9b 154
greenroshks 6:82153349cc9b 155
greenroshks 6:82153349cc9b 156 case 1: printf("\nEntered switch\n");
greenroshks 6:82153349cc9b 157 while(loopvariable3)
greenroshks 3:9b597ed04ef4 158 {
harshit_felicity 0:cbe0ea884289 159 if(slave.receive()==ReadAddressed) //check if slave is addressed to read
harshit_felicity 0:cbe0ea884289 160 {
greenroshks 3:9b597ed04ef4 161 while(loopvariable2<iterations)
greenroshks 3:9b597ed04ef4 162 {
harshit_felicity 0:cbe0ea884289 163 if(loopvariable2%3==0)
harshit_felicity 0:cbe0ea884289 164 {
viswachaitanya 7:47e07755d9a4 165 printf("\nvoltage%d\n",loopvariable2/3);
greenroshks 3:9b597ed04ef4 166 write_to_master(Sensor.Voltage[loopvariable2/3]);
harshit_felicity 0:cbe0ea884289 167 }
harshit_felicity 0:cbe0ea884289 168 else if(loopvariable2%3==1)
harshit_felicity 0:cbe0ea884289 169 {
viswachaitanya 7:47e07755d9a4 170 printf("\ncurrent%d\n",loopvariable2/3);
greenroshks 3:9b597ed04ef4 171 write_to_master(Sensor.Current[loopvariable2/3]);
harshit_felicity 0:cbe0ea884289 172 }
harshit_felicity 0:cbe0ea884289 173 else if(loopvariable2%3==2)
harshit_felicity 0:cbe0ea884289 174 {
viswachaitanya 7:47e07755d9a4 175 printf("\ntemp%d\n",loopvariable2/3);
greenroshks 3:9b597ed04ef4 176 write_to_master(Sensor.Temperature[loopvariable2/3]);
harshit_felicity 0:cbe0ea884289 177 }
harshit_felicity 0:cbe0ea884289 178 loopvariable2++;
greenroshks 3:9b597ed04ef4 179 }//while(loopvariable2<30)
greenroshks 6:82153349cc9b 180 printf("\nExited i2c while loop\n");
greenroshks 3:9b597ed04ef4 181 slave.stop();
greenroshks 3:9b597ed04ef4 182 loopvariable3=0;
greenroshks 3:9b597ed04ef4 183 }//if(read addressed)
greenroshks 3:9b597ed04ef4 184
greenroshks 3:9b597ed04ef4 185 }//while(loopvariable3)
greenroshks 3:9b597ed04ef4 186
harshit_felicity 0:cbe0ea884289 187 break;
viswachaitanya 7:47e07755d9a4 188 case 2 : printf(" telecommand 2\n");
harshit_felicity 0:cbe0ea884289 189 break;
harshit_felicity 0:cbe0ea884289 190
harshit_felicity 0:cbe0ea884289 191 }//switch case ends
harshit_felicity 0:cbe0ea884289 192 }
harshit_felicity 0:cbe0ea884289 193 }
viswachaitanya 7:47e07755d9a4 194 printf("\nexited slave function\n");
viswachaitanya 7:47e07755d9a4 195 }*/
greenroshks 3:9b597ed04ef4 196