I am having trouble with the Iris Carrier board with UART communication a RN41 Bluetooth card. I know the level for the card are TTL and not RS232.
I am not able to receive any communication from the Bluetooth card on UART_B (pins 31 and 32 on X16), but strangely I am able to send without a problem.
I have followed the instructions to disable full RS232 on X14 by setting pin 104 to low, but this does not seem to make any difference.
I am using a PXA300 and Windows CE 6.0.
Also Iris Carrier board is v1.1A
Any help would be appreciated.