Other Parts Discussed in Thread: TRF7970A
Hi All,
I am using two trf7970a evm modules for NFC P2P communication and i have some limitations about the devices!
The problem is: when i sent a message for one device to another mostly it receives to target device but when i sent the same message or a different one the target device stops responding after 37th message(no matter how long the payload of the message is)!!
What is that about?
Another issue is when i change the bit rate to higher(to 212 or 424 kbps) the same message is received at the same time, the trandsmission time and bit duration doesnot change at all. since 1bd= 128/(fc*D) [from ECMA specifications], one bit duration must be different and transmission time also must be different.
I have tried many times but the results are the same!!
my devices work properly for reader to tag applications, what can be that problem about with TRF modules?
Has anybody else faced the same problem ?
Any ideas?
Thanks.
Bilal