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i2c slave integrated
Fork of BAE_FRDM_INTEGRATION by
HK.cpp
- Committer:
- sakthipriya
- Date:
- 2014-12-15
- Revision:
- 9:a9de938283f9
- Parent:
- 8:667fbc82d634
File content as of revision 9:a9de938283f9:
#include "HK.h" MAX17048 master(A4,A5,100000);//CHECK SDA,SCL LINES,FREQUENCY int quantiz(float start,float step,float x); //GPIO pins used=> D2-D13, A0-A1 DigitalOut SelectLinesA[]={D2,D3,D4,D5};//to mux1 DigitalOut SelectLinesB[]={D6,D7,D8,D9};//to mux2 DigitalOut SelectLinesC[]={D10,D11,D12,D13};//to mux3 //--------------------------------------------MSB is SelectLines[0],LSB is SelectLines[3]-------------------------------- AnalogIn CurrentInput(A0); // Input from Current AnalogIn VoltageInput(A1); // Input from Voltage Multiplexer AnalogIn TemperatureInput(A2); /*Input from Temperature Multiplexer,thermistor Multiplexer- same multiplexer for both(0-3 for thermistor,4-15 for temperature sensor)*/ SensorData Sensor;//struct variable int quantiz(float start,float step,float x) // accepts min and measured values and step->quantises on a scale 0-15 { int y=(x-start)/step; if(y<=0)y=0; if(y>=15)y=15; return y; } void init_beacon(ShortBeacy x) //dummy values----------to be changed------------------- { x.Voltage[0]=1; x.AngularSpeed[0]=2; x.AngularSpeed[1]=3; x.SubsystemStatus[0]=145; x.Temp[0]=1; x.Temp[1]=2; x.Temp[2]=3; x.ErrorFlag[0]=3; } ShortBeacy Shortbeacon;//struct variable void FUNC_HK_MAIN() { init_beacon(Shortbeacon); //initialise all selectlines to zeroes->1st line of mux selected SelectLinesA[0]=SelectLinesA[1]=SelectLinesA[2]=SelectLinesA[3]=0; SelectLinesB[0]=SelectLinesB[1]=SelectLinesB[2]=SelectLinesB[3]=0; SelectLinesC[0]=SelectLinesC[1]=SelectLinesC[2]=SelectLinesC[3]=0; int LoopIterator; float resistance_thermistor,voltage_thermistor;//for thermistor for(LoopIterator=0; LoopIterator<16; LoopIterator++) { if(LoopIterator%2==0) { Sensor.Voltage[LoopIterator/2]=quantiz(vstart,vstep,(VoltageInput.read()*3.18*5.37)); Sensor.Current[LoopIterator/2]=quantiz(cstart,cstep,(CurrentInput.read()*3.18/(50*rsens))); if(LoopIterator>3) Sensor.Temperature[(LoopIterator-4)/2]=quantiz(tstart,tstep,(-90.7*3.18*TemperatureInput.read()+190.1543)); else { voltage_thermistor=TemperatureInput.read()*3.18; resistance_thermistor=24000*voltage_thermistor/(3.3-voltage_thermistor); if(voltage_thermistor<1.378) //Temperature>12 degC Sensor.PanelTemperature[(LoopIterator)/2]=quantiz(tstart_thermistor,tstep_thermistor,(3694/log(24.032242*resistance_thermistor))); else { Sensor.PanelTemperature[(LoopIterator)/2]=quantiz(tstart_thermistor,tstep_thermistor,(3365.4792/log(7.60404*resistance_thermistor))); } } } else { Sensor.Voltage[(LoopIterator-1)/2]=Sensor.Voltage[(LoopIterator-1)/2]<<4+quantiz(vstart,vstep,(VoltageInput.read()*3.18*5.37)); Sensor.Current[(LoopIterator-1)/2]=Sensor.Current[(LoopIterator-1)/2]<<4+quantiz(cstart,cstep,(CurrentInput.read()*3.18/(50*rsens))); if(LoopIterator>3) Sensor.Temperature[(LoopIterator-5)/2]=Sensor.Temperature[(LoopIterator-5)/2]<<4+quantiz(tstart,tstep,(-90.7*3.18*TemperatureInput.read()+190.1543)); else { voltage_thermistor=TemperatureInput.read()*3.18; resistance_thermistor=24000*voltage_thermistor/(3.3-voltage_thermistor); if(voltage_thermistor<1.378) //Temperature>12 degC Sensor.PanelTemperature[(LoopIterator-1)/2]=Sensor.PanelTemperature[(LoopIterator-1)/2]<<4+quantiz(tstart_thermistor,tstep_thermistor,(3694/log(24.032242*resistance_thermistor))); else Sensor.PanelTemperature[(LoopIterator-1)/2]=Sensor.PanelTemperature[(LoopIterator-1)/2]<<4+quantiz(tstart_thermistor,tstep_thermistor,(3364.4792/log(7.60404*resistance_thermistor))); } } float batteryparameters[4];//to populate battery parameters of struct variable Sensor FUNC_BATTERYGAUGE_MAIN(batteryparameters);//passing array to function Sensor.Vcell=batteryparameters[0]; Sensor.soc=batteryparameters[1]; Sensor.crate=batteryparameters[2]; Sensor.alerts=batteryparameters[3]; // The following lines are used to iterate the select lines from 0 to 15 int SelectLineIterator; //following is an algorithm similar to counting binary numbers of 4 bit for(SelectLineIterator=3;SelectLineIterator>=0;SelectLineIterator--) { if(SelectLinesA[SelectLineIterator]==0) { SelectLinesA[SelectLineIterator]=1; break; } else SelectLinesA[SelectLineIterator]=0; SelectLinesB[SelectLineIterator]=SelectLinesA[SelectLineIterator]; SelectLinesC[SelectLineIterator]=SelectLinesA[SelectLineIterator]; } wait_us(10.0); // A delay of 10 microseconds between each sensor output. Can be changed. } } void FUNC_BATTERYGAUGE_MAIN(float array[]) { float vcell=master.vcell(); float soc=master.soc(); float crate=master.crate(); printf("\nVcell=%f",vcell); printf("\nSOC=%f",soc); printf("\nC_rate=%f",crate); array[0]=vcell; array[1]=soc; array[2]=crate; if (master.alerting()== true) //alert is on { array[3]=master.alertFlags(); master.clearAlert();//clear alert master.clearAlertFlags();//clear all alert flags } }