sakthi priya amirtharaj
/
BAE_FRDM_INTEGRATION
i2c slave integrated
Fork of BAE_FRDM_INTEGRATION by
Diff: slave.cpp
- Revision:
- 9:a9de938283f9
- Parent:
- 8:667fbc82d634
diff -r 667fbc82d634 -r a9de938283f9 slave.cpp --- a/slave.cpp Mon Dec 15 05:58:23 2014 +0000 +++ b/slave.cpp Mon Dec 15 11:21:57 2014 +0000 @@ -105,149 +105,54 @@ #include "HK.h" #include "slave.h" +#include "mbed.h" +#include "rtos.h" +#include "slave.h" +void write_to_master(char); //function to write data to master I2CSlave slave(D14,D15); //configuring pins p27, p28 as I2Cslave -Serial pc_slave (USBTX,USBRX); -//InterruptIn interrupt(D9); //This should be in the main -//DigitalOut data_ready(D10); //Again in the main function -//int i2c_status=0; //read/write mode for i2c 0 : write2slave, 1 : write2master (Again in tha main) + +Serial pcslave(USBTX, USBRX); + + -typedef struct +//int temp; + + +void FUNC_I2C_WRITE2CDMS(char *data,int length) { - char data; // To avoid dynamic memory allocation - int length; -}i2c_data; - -//Mail<i2c_data,16> i2c_data_receive; To be done in the main -//Mail<i2c_data,16> i2c_data_send; To be done in the main - -void FUNC_I2C_WRITE2CDMS(char *data, int length=1) -{ + int slave_status = 1; - int slave_status = 1; + while(slave_status) { slave.address(0x20); if(slave.receive()==1) { slave_status=slave.write(data,length); - // printf("\n In the while loop\n"); - - /*if(!slave_status) - { - printf("slave wrote %c to master\n\r",*data); - - }*/ + } - else - if(slave.receive()==3 || slave.receive()==2) - { - //i2c_data *i2c_data_r = i2c_data_receive.alloc(); - slave_status=slave.read(data,length); - /*if(!slave_status) - { - printf("1 read %c from master\n\r",*data); - }*/ - } - //slave.stop(); + else if(slave.receive()==3 || slave.receive()==2) + { + slave_status=slave.read(data,length); + } + } - printf("2 done"); + printf("\ndone\n\r"); } -/*void T_I2C_BAE(void const * args) -{ - char data_send,data_receive; - //data_send = 'a'; - while(1) - { - Thread::signal_wait(0x1); - printf("\ndetected interrupt\n"); - if(i2c_status == 0) - { - - FUNC_I2C_WRITE2CDMS(&data_receive); - //printf("\n Data received from CDMS is %c\n",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); - } - else if(i2c_status ==1 ) - { - osEvent evt = i2c_data_send.get(); - if (evt.status == osEventMail) - { - i2c_data *i2c_data_s = (i2c_data*)evt.value.p; - //printf("\nData read from CDMS is %c\n",i2c_data_r->data); - data_send = i2c_data_s -> data; - FUNC_I2C_WRITE2CDMS(&data_send); - printf("\nData sent to CDMS is %c\n",data_send); - i2c_data_send.free(i2c_data_s); - i2c_status = 0; - //delete i2c_data_r; - } - } - } -} - -void FUNC_INT() -{ - // char * data = new char; - //*data = 'a'; - //printf("\nInterrupt from master detected\n"); - ptr_t_i2c->signal_set(0x1); - // - //delete data; -} + + + + + + -void main() -{ - printf("\nStarted slave... waiting for master\n"); - ptr_t_i2c = new Thread(T_I2C_BAE); - char data='a'; - interrupt.rise(&FUNC_INT); - - /* 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; - i2c_status=1;*/ - // while(1) - //{ - //*(data_send)=pc.getc(); - - //FUNC_I2C_WRITE2CDMS(&data,1); - //printf("\n The data send or received by slave is %c\n",data); - //(data)++; - //wait(1); - //Remove the comments for receiving data - /* osEvent evt = i2c_data_receive.get(); - if (evt.status == osEventMail) - { - i2c_data *i2c_data_r = (i2c_data*)evt.value.p; - printf("\nData read from CDMS is %c\n",i2c_data_r->data); - - i2c_data_receive.free(i2c_data_r); - //delete i2c_data_r; - }*/ -/* //put in comments for receiving data - data_ready=0; - data = pc.getc(); - 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; - i2c_status=1; - - } -} -*/ + -//To be done in the main \ No newline at end of file +