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after pin config implementation
Fork of BAE_FRDM by
Diff: slave.cpp
- Revision:
- 9:221d218f4690
- Parent:
- 7:f06840d848e3
diff -r 69475d16d23d -r 221d218f4690 slave.cpp --- a/slave.cpp Thu Dec 11 07:34:17 2014 +0000 +++ b/slave.cpp Mon Dec 15 05:58:04 2014 +0000 @@ -1,101 +1,123 @@ -/* Added fault to hk structure and being sent through I2C. Need to verify the format */ +#include "mbed.h" +#include "rtos.h" #include "slave.h" -#include "HK.h" + +void write_to_master(char); //function to write data to master + +I2CSlave slave(D14,D15); //configuring pins p27, p28 as I2Cslave + +Serial pcslave(USBTX, USBRX); +DigitalOut data_ready(D10); +int i2c_status=0; //read/write mode for i2c 0 : write2slave, 1 : write2master +int reset=0; +int temp; + +typedef struct +{ + char data; // To avoid dynamic memory allocation + int length; +}i2c_data; + + + +Mail<i2c_data,16> i2c_data_receive; +Mail<i2c_data,16> i2c_data_send; -extern struct SensorData Sensor; -I2CSlave slave(PTC9,PTC8); //configuring pins p27, p28 as I2Cslave -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) + +void FUNC_I2C_WRITE2CDMS(char *data, int length=1) +{ + int slave_status = 1; + + while(slave_status) + { + slave.address(0x20); + if(slave.receive()==1) { - screen.printf(" acknowledge %d sent %u \n",acknowledge,send); - loopvariable4=0; + slave_status=slave.write(data,length); + + + } + else if(slave.receive()==3 || slave.receive()==2) + { + slave_status=slave.read(data,length); } - } - } - - - - -void FUNC_I2C_SLAVE_MAIN(int iterations) + + } + printf("\ndone\n\r"); + +} +char data_send,data_receive; +void T_I2C_BAE() { - - screen.printf("\nSlave entered\n"); - slave.address(slave_address); //assigning slave address - slave.stop(); - char Switch_Variable; - - - int loopvariable1=1; - int loopvariable2=0; - int loopvariable3=1; -//initialising dummy sensor data - - while(loopvariable1) - { -//to read data from master - if(slave.receive()==WriteGeneral) //checking if slave is addressed to write - { - slave.stop(); - Switch_Variable=slave.read(); //receiving data - 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) - { + //char data_send,data_receive; + //while(1) + //{ + // Thread::signal_wait(0x1); + //i2c_status = temp; + //wait(0.5); + printf("\n entered thread\n\r"); + if(i2c_status == 0 && reset !=1) + { + + FUNC_I2C_WRITE2CDMS(&data_receive); + i2c_data * i2c_data_r = i2c_data_receive.alloc(); + i2c_data_r->data = data_receive; + i2c_data_r->length = 1; + i2c_data_receive.put(i2c_data_r); + printf("\n Data received from CDMS is %c\n\r",data_receive); + i2c_data_receive.free(i2c_data_r); // This has to be done from a differen thread + + } + else if(i2c_status ==1 && reset !=1) + { + osEvent evt = i2c_data_send.get(); + if (evt.status == osEventMail) + { + i2c_data *i2c_data_s = (i2c_data*)evt.value.p; + data_send = i2c_data_s -> data; + FUNC_I2C_WRITE2CDMS(&data_send); + printf("\nData sent to CDMS is %c\n\r",data_send); + i2c_data_send.free(i2c_data_s); + i2c_status = 0; + //temp = i2c_status; + } + } + + //} +} - - case 1: printf("\nEntered switch\n"); - while(loopvariable3) - { - if(slave.receive()==ReadAddressed) //check if slave is addressed to read - { - while(loopvariable2<iterations) - { - if(loopvariable2%3==0) - { - screen.printf("\nvoltage%d\n",loopvariable2/3); - write_to_master(Sensor.Voltage[loopvariable2/3]); - } - else if(loopvariable2%3==1) - { - screen.printf("\ncurrent%d\n",loopvariable2/3); - write_to_master(Sensor.Current[loopvariable2/3]); - } - else if(loopvariable2%3==2) - { - screen.printf("\ntemp%d\n",loopvariable2/3); - write_to_master(Sensor.Temperature[loopvariable2/3]); - } - loopvariable2++; - } - screen.printf("\nfault %c\n",Sensor.faultpoll); - write_to_master(Sensor.faultpoll); - screen.printf("\nfault %c\n",Sensor.faultir); - write_to_master(Sensor.faultir); - screen.printf("\npower mode %c\n",Sensor.power_mode); - write_to_master(Sensor.power_mode); - printf("\nExited i2c while loop\n"); - slave.stop(); - loopvariable3=0; - }//if(read addressed) - - }//while(loopvariable3) - - break; - case 2 : screen.printf(" telecommand 2\n"); - break; - - }//switch case ends - } + + +void FUNC_INT() +{ + reset = 0; + + +} + +void FUNC_RESET() +{ + reset = 1; } - screen.printf("\nexited slave function\n"); + +void ir2master() +{ + + char data='a'; + data_ready=0; + data = pcslave.getc(); + reset =0; + i2c_status=1; + i2c_data * i2c_data_s = i2c_data_send.alloc(); + i2c_data_s->data = data; + i2c_data_s->length = 1; + i2c_data_send.put(i2c_data_s); + data_ready=1; + //temp = i2c_status; } - \ No newline at end of file + + + + + +