sakthi priya amirtharaj
/
slave_working1_1
i2c slave working version 1.1
Fork of slave_i2c3 by
Diff: main.cpp
- Revision:
- 7:debeb7070a54
- Parent:
- 6:8aea752c6eda
- Child:
- 8:04b912dc2443
diff -r 8aea752c6eda -r debeb7070a54 main.cpp --- a/main.cpp Fri Dec 12 08:51:42 2014 +0000 +++ b/main.cpp Fri Dec 12 12:16:48 2014 +0000 @@ -8,6 +8,7 @@ InterruptIn interrupt(D9); DigitalOut data_ready(D10); int i2c_status=0; //read/write mode for i2c 0 : write2slave, 1 : write2master +char data='a'; typedef struct { @@ -29,52 +30,38 @@ 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(); + } - printf("2 done"); + printf("done"); } void T_I2C_BAE(void const * args) { char data_send,data_receive; - //data_send = 'a'; while(1) { Thread::signal_wait(0x1); - printf("\nbdh\n"); - //i2c_status=alpha; - printf(" i2c status is %d " , i2c_status); if(i2c_status == 0) { FUNC_I2C_WRITE2CDMS(&data_receive); - printf("\n i2c=0\n\r"); - 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",data_receive); + i2c_data_receive.free(i2c_data_r); } else if(i2c_status ==1 ) @@ -83,14 +70,13 @@ 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; + } @@ -102,13 +88,23 @@ void FUNC_INT() { - // char * data = new char; - //*data = 'a'; - //printf("\blah\n"); + ptr_t_i2c->signal_set(0x1); - //delete data; - + } + +void ir2master() +{ + data_ready=0; + data = pc.getc(); + 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; +} + @@ -117,40 +113,10 @@ ptr_t_i2c = new Thread(T_I2C_BAE); - char data='a'; interrupt.rise(&FUNC_INT); 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(); - printf(" %c ", data); - i2c_status=1; - printf(" %d ", i2c_status ); - 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); - // wait(0.5); - alpha=i2c_status; - data_ready=1; - + ir2master(); }