Chaitanya Viswa
/
BAE_SEM5
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Fork of
all_combined_week6
by 
green rosh
Revision 3:9b597ed04ef4, committed 2014-07-11
- Comitter:
- greenroshks
- Date:
- Fri Jul 11 08:54:12 2014 +0000
- Parent:
- 2:94ca2059f8b2
- Child:
- 4:79b97f9cab00
- Commit message:
- Updated with new slave
Changed in this revision
--- a/hkfinal.cpp Fri Jul 11 05:14:12 2014 +0000
+++ b/hkfinal.cpp Fri Jul 11 08:54:12 2014 +0000
@@ -59,13 +59,13 @@
for(LoopIterator=0; LoopIterator<16; LoopIterator++) {
if(LoopIterator%2==0) {
- SensorData.Current[LoopIterator]=quantiz(cstart,cstep,(CurrentInput.read()/(50*rsens)));
- SensorData.Voltage[LoopIterator]=quantiz(vstart,vstep,(VoltageInput.read()/5.37));
- SensorData.Temperature[LoopIterator]=quantiz(tstart,tstep,(-90.7*3.18*TemperatureInput.read()+190.1543));
+ SensorData.Current[LoopIterator/2]=quantiz(cstart,cstep,(CurrentInput.read()/(50*rsens)));
+ SensorData.Voltage[LoopIterator/2]=quantiz(vstart,vstep,(VoltageInput.read()/5.37));
+ SensorData.Temperature[LoopIterator/2]=quantiz(tstart,tstep,(-90.7*3.18*TemperatureInput.read()+190.1543));
} else {
- SensorData.Current[LoopIterator-1]=SensorData.Current[LoopIterator-1]<<4+quantiz(cstart,cstep,(CurrentInput.read()/(50*rsens)));
- SensorData.Voltage[LoopIterator-1]=SensorData.Voltage[LoopIterator-1]<<4+quantiz(vstart,vstep,(VoltageInput.read()/5.37));
- SensorData.Temperature[LoopIterator-1]=SensorData.Temperature[LoopIterator-1]<<4+quantiz(tstart,tstep,(-90.7*3.18*TemperatureInput.read()+190.1543));
+ SensorData.Current[(LoopIterator-1)/2]=SensorData.Current[LoopIterator-1]<<4+quantiz(cstart,cstep,(CurrentInput.read()/(50*rsens)));
+ SensorData.Voltage[(LoopIterator-1)/2]=SensorData.Voltage[LoopIterator-1]<<4+quantiz(vstart,vstep,(VoltageInput.read()/5.37));
+ SensorData.Temperature[(LoopIterator-1)/2]=SensorData.Temperature[LoopIterator-1]<<4+quantiz(tstart,tstep,(-90.7*3.18*TemperatureInput.read()+190.1543));
}
// The following lines are used to iterate the select lines from 0 to 15
SelectLine0=!(SelectLine0);
--- a/slave.cpp Fri Jul 11 05:14:12 2014 +0000
+++ b/slave.cpp Fri Jul 11 08:54:12 2014 +0000
@@ -1,98 +1,89 @@
#include "slave.h"
-SensorData Sensor;
+#include "HK.h"
+
+extern SensorData Sensor;
I2CSlave slave(p28,p27); //configuring pins p27, p28 as I2Cslave
-Serial green(USBTX, USBRX);
-
+Serial screen (USBTX,USBRX);
void write_to_master(char send) //function to write data to master
{
int acknowledge;
+ int loopvariable4=1;
+ while(loopvariable4)
+ {
acknowledge = slave.write(send); //sending the byte to master
if(acknowledge==1)
{
- green.printf(" acknowledge %d sent %x \n",acknowledge,send);
+ screen.printf(" acknowledge %d sent %x \n",acknowledge,send);
+ loopvariable4=0;
}
+ }
}
- void split(float data) //function to split data into 4 individual bytes and send to master
- {
- union convert
- {
- char byte[4]; //array containing individual bytes
- float number; //floating point number to be split into four bytes
- }v;
- v.number=data;
- write_to_master(v.byte[0]);
- write_to_master(v.byte[1]);
- write_to_master(v.byte[2]);
- write_to_master(v.byte[3]);
- green.printf("sent %f\n",v.number);
- }
-
-
-
-void FUNC_I2C_SLAVE_MAIN()
+
+
+
+void FUNC_I2C_SLAVE_MAIN(int iterations)
{
wait(0.5);
- slave.address(0x20); //assigning slave address
- int Switch_Variable;
- int ReadAddressed=1;
- int WriteGeneral=3;
+ screen.printf("\nSlave entered\n");
+ slave.address(slave_address); //assigning slave address
+ char Switch_Variable;
+
+
int loopvariable1=1;
int loopvariable2=0;
+ int loopvariable3=1;
//initialising dummy sensor data
-// SensorData Sensor;
- Sensor.voltage[0]=0.1;Sensor.current[0]=0.0;Sensor.temp[0]=1.0;
- Sensor.voltage[1]=0.1;Sensor.current[1]=1.1;Sensor.temp[1]=2.0;
- Sensor.voltage[2]=0.2;Sensor.current[2]=2.2;Sensor.temp[2]=2.0;
- Sensor.voltage[3]=0.3;Sensor.current[3]=3.3;Sensor.temp[3]=3.0;
- Sensor.voltage[4]=0.4;Sensor.current[4]=4.4;Sensor.temp[4]=4.0;
- Sensor.voltage[5]=0.5;Sensor.current[5]=5.5;Sensor.temp[5]=5.0;
- Sensor.voltage[6]=0.6;Sensor.current[6]=6.6;Sensor.temp[6]=6.0;
- Sensor.voltage[7]=0.7;Sensor.current[7]=7.7;Sensor.temp[7]=7.0;
- Sensor.voltage[8]=0.8;Sensor.current[8]=8.8;Sensor.temp[8]=8.0;
- Sensor.voltage[9]=0.9;Sensor.current[9]=9.9;Sensor.temp[9]=20.5;
+
while(loopvariable1)
{
//to read data from master
if(slave.receive()==WriteGeneral) //checking if slave is addressed to write
{
Switch_Variable=slave.read(); //receiving data
- green.printf("switch variable=%d\n",Switch_Variable);
+ screen.printf("switch variable=%d\n",Switch_Variable);
slave.stop(); //reset slave to default receiving state
loopvariable1=0;
//to interpret and write data to master
switch(Switch_Variable)
{
- case 1: while(loopvariable2<30)
- {
+ case '1': while(loopvariable3)
+ {
if(slave.receive()==ReadAddressed) //check if slave is addressed to read
{
+ while(loopvariable2<iterations)
+ {
if(loopvariable2%3==0)
{
- green.printf("\nvoltage%d\n",loopvariable2/3);
- split(Sensor.voltage[loopvariable2/3]);
+ screen.printf("\nvoltage%d\n",loopvariable2/3);
+ write_to_master(Sensor.Voltage[loopvariable2/3]);
}
else if(loopvariable2%3==1)
{
- green.printf("\ncurrent%d\n",loopvariable2/3);
- split(Sensor.current[loopvariable2/3]);
+ screen.printf("\ncurrent%d\n",loopvariable2/3);
+ write_to_master(Sensor.Current[loopvariable2/3]);
}
else if(loopvariable2%3==2)
{
- green.printf("\ntemp%d\n",loopvariable2/3);
- split(Sensor.temp[loopvariable2/3]);
+ screen.printf("\ntemp%d\n",loopvariable2/3);
+ write_to_master(Sensor.Temperature[loopvariable2/3]);
}
loopvariable2++;
- slave.stop();
- }
- }
+ }//while(loopvariable2<30)
+ slave.stop();
+ loopvariable3=0;
+ }//if(read addressed)
+
+ }//while(loopvariable3)
+
break;
- case 2 : green.printf(" telecommand 2\n");
+ case '2' : screen.printf(" telecommand 2\n");
break;
}//switch case ends
}
}
- green.printf("done");
+ screen.printf("done");
}
+
\ No newline at end of file
--- a/slave.h Fri Jul 11 05:14:12 2014 +0000
+++ b/slave.h Fri Jul 11 08:54:12 2014 +0000
@@ -1,14 +1,6 @@
#include "mbed.h"
-
-
-void split(float); //function to split 4 bcurrentte data
+#define WriteGeneral 3
+#define ReadAddressed 1
+#define slave_address 0x20
void write_to_master(char); //function to write data to master
-void FUNC_I2C_SLAVE_MAIN();
-
-struct SensorData //HK_data_structure
-{
- float voltage[10];
- float current[10];
- float temp[10];
- //float Battery[2];
-};
+void FUNC_I2C_SLAVE_MAIN(int iterations);
\ No newline at end of file