1 Reply Latest reply on Sep 30, 2013 12:58 AM by GayathriV_16

    Question about an61345



      In TD_poll() of slave.c of An61345 example firmware code,


      The IOC used like this  IOC |=0x01  But i dont understand. 


      As i know, The IOC 's i/o initial direction is used by input. 


      So IOC register can read on input direction, but example code show that IOC can write like this  IOC |=0x01. 


      Is this something wrong what write data to input register ?

        • 1. Re: Question about an61345





          In fw.c you can see that PC.0 is configured as an Output pin and PC.1 as input as below:




          OEC|=0x01; //PC.0 as output (SYNC signal)




          OEC&=0xFD; //PC.1 as input (Clock changing signal)








          It is the OEC register that determines which pin of port C acts as input, and which as output.