Chaitanya Viswa
freeslave1.0
Revision 0:10d14005f03a, committed 2014-12-03
- Comitter:
- viswachaitanya
- Date:
- Wed Dec 03 10:37:04 2014 +0000
- Commit message:
- pre 12/14 testing
Changed in this revision
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Wed Dec 03 10:37:04 2014 +0000
@@ -0,0 +1,11 @@
+#include "slave.h"
+int main()
+{
+ while(1)
+ {
+ FUNC_I2C_SLAVE_MAIN(24);
+ }
+}
+
+
+
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Wed Dec 03 10:37:04 2014 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/mbed/builds/552587b429a1 \ No newline at end of file
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/slave.cpp Wed Dec 03 10:37:04 2014 +0000
@@ -0,0 +1,92 @@
+#include "slave.h"
+I2CSlave slave(p28,p27); //configuring pins p27, p28 as I2Cslave
+Serial pc (USBTX,USBRX);
+//SensorData Sensor;
+struct SensorData //HK_data_structure
+{
+ char voltage[10];
+ char current[10];
+ char temp[10];
+}Sensor;
+
+int FUNC_I2C_SLAVE_MAIN(int iterations)
+{
+
+ wait(0.5);
+ slave.address(0x20); //assigning slave address
+ char Switch_Variable;
+ int ReadAddressed=1;
+ int WriteGeneral=3;
+ bool loopvariable1=true;
+ uint8_t loopvariable2=0;
+ bool loopvariable3=true;
+//---------------initialising dummy sensor data-----------------------------------------------------------
+ Sensor.voltage[0]='a';Sensor.current[0]='1';Sensor.temp[0]='k';
+ Sensor.voltage[1]='b';Sensor.current[1]='2';Sensor.temp[1]='l';
+ Sensor.voltage[2]='c';Sensor.current[2]='3';Sensor.temp[2]='m';
+ Sensor.voltage[3]='d';Sensor.current[3]='4';Sensor.temp[3]='n';
+ Sensor.voltage[4]='e';Sensor.current[4]='5';Sensor.temp[4]='o';
+ Sensor.voltage[5]='f';Sensor.current[5]='1';Sensor.temp[5]='p';
+ Sensor.voltage[6]='g';Sensor.current[6]='2';Sensor.temp[6]='q';
+ Sensor.voltage[7]='h';Sensor.current[7]='3';Sensor.temp[7]='r';
+ while(loopvariable1)
+ {
+//------------------------to read data from master---------------------------------------------------------
+ if(slave.receive()==WriteGeneral) //checking if slave is addressed to write
+ {
+ Switch_Variable=slave.read(); //receiving data
+ printf("switch variable=%d\n",Switch_Variable);
+ slave.stop(); //reset slave to default receiving state
+ loopvariable1=false;
+//----------------------to interpret and write data to master----------------------------------------------
+ switch(Switch_Variable)
+ {
+
+ case '1': while(loopvariable3)
+ {
+ if(slave.receive()==ReadAddressed) //check if slave is addressed to read
+ {
+ loopvariable3=false;
+ while(loopvariable2<8) //running loop for sending 30 sensors data
+ {
+ printf("\nvoltage%d\n",loopvariable2);
+ write_to_master(Sensor.voltage[loopvariable2]); //calling function to send float data
+
+ printf("\ncurrent%d\n",loopvariable2);
+ write_to_master(Sensor.current[loopvariable2]); //calling function to send float data
+
+ printf("\ntemp%d\n",loopvariable2);
+ write_to_master(Sensor.temp[loopvariable2]); //calling function to send float data
+
+ loopvariable2++;
+ }
+
+ }
+
+ }
+ break;
+ case '2' : printf(" telecommand 2\n");
+ break;
+
+ }
+ }
+}
+ slave.stop();
+ printf("done");
+}
+
+//------------------function to write data to master---------------------------------------------------
+void write_to_master(char send)
+{
+ bool acknowledge;
+ bool loopvariable4=true;
+ while(loopvariable4)
+ {
+ acknowledge = (bool) slave.write(send); //sending the byte to master
+ if(acknowledge) //breaking loop if data is acknowledged
+ {
+ printf(" acknowledge %d sent %x \n",acknowledge,send);
+ loopvariable4 = false;
+ }
+ }
+}
\ No newline at end of file
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/slave.h Wed Dec 03 10:37:04 2014 +0000 @@ -0,0 +1,5 @@ +#include "mbed.h" + +int FUNC_I2C_SLAVE_MAIN(int iterations); +void write_to_master(char); //function to write data to master +