UART in nRF51822 Evaluation kit won't receive

[Allan]

I'm load the UART example (pca10001) to the Evaluation Kit, i can see using hyperterminal the messages send by the kit ( the Start message) but after that i wont be able to receive any input from the CPU, im using all the parameter given in the SDK webpage and cannot find the problem.

[Hung Bui]

@Allan: I suspect that there would be an issue with the physical UART pins (RX, TX; RTS; CTS pins). Could you tried:

• Do loopback mode with HWFC = false.

• If Error LED still on, please try my attached example, in which I reconfigured the RX and TX pins to P0.00 and P0.01. If you connect them together (the 2 far right pins on P3), the Error LED should not lit up after reset.

uart_example - TestPins.zip

[Allan]

Thank you, changing the pin configuration did the trick, again thanks a lot for all the support and quick answers.