nRF24: tracing with attached debugger

RE: nRF24: tracing with attached debugger

NGO — Thu, 26 Oct 2017 19:23:17 GMT

Just to complete this discussion. We implemented bit-banging on P0.5 and it worked fine for TX at 57600 baud.

Thanks again, Hung.

NGO — Tue, 24 Oct 2017 13:20:38 GMT

Thank you for your answer, Hung.

Yes, we're aware we cannot attach a debugger and have the built-in UART working. That was the reason we posted here.

We already have USB traces but they are not always available. The UART is.

Bit-banging was considered (feared is a better word). We'll look into that.

Hung Bui — Tue, 24 Oct 2017 13:10:15 GMT

The nRF24LU1 only has 6 GPIO pins. So it's not possible to use UART concurrent with the debugger.

What you can think of is to use USB (as a virtual UART on PC), example here. Or to use 2 free GPIOs and bit banging UART.