Fanstel boards not connecting to each other?

RE: Fanstel boards not connecting to each other?

Tesseract — Fri, 28 Aug 2020 06:53:10 GMT

Any update on this. I have exactly the same issue.

RE: Fanstel boards not connecting to each other?

Kenneth — Tue, 25 Feb 2020 15:58:08 GMT

Try to pull the UART RX pin high if it's unconnected, that should at least avoid uart framing errors. Else I think debugging through SES to identify where it potentially is hanging, asserting or loop'ing is the way to go yes.

Best regards,
Kenneth

RE: Fanstel boards not connecting to each other?

SRall — Tue, 25 Feb 2020 14:28:26 GMT

Thanks for your response Kenneth. I was provided the additional source code needed to control the PA and eval board pin configs, and I believe I have the external crystal switched to "ON".

You're right though, I'm a little confused about the UART configuration, as I don't seem to be getting anything to print over the serial COM (I'm using PuTTY and a Nordic DK for the J-Link ). I noticed that this additional code has hardware flow control turned off and the UART RX and TX pins are set to P1.01 and P1.02 respectively. Is this what is causing this issue?

I am compiling the 'Debug Build Configuration' in SE Studio, but I wonder if I have a setting wrong somewhere in the IDE?

I can at least confirm the board enters the main function because I can see the LEDs initialize by turning them on and off again. I can actually control how long the LEDs flash by increasing the delays in the init function, so I at least I can confirm the code is flashed and executing properly.

It could very well be that the two Fantel boards are, in fact, establishing a connection and I just have no way of knowing it because I can't get any debug logs to print.

Thanks again for your help,

Sam

RE: Fanstel boards not connecting to each other?

Kenneth — Tue, 25 Feb 2020 12:10:59 GMT

Hi,

The default nRF5 SDK examples are setup for instance to use external 32kHz crystal, there may also be GPIO's that expect UART hardware flow control connected. So if you are not able to connect you should check by debugging where in your projects the code "hangs" and/or there is any asserts.

If this module also have a PA, you would likely also need to add control of the PA for it to work as expected. Also make sure that your previously used phone don't by accident connect to one of the boards by default.

Best regards,
Kenneth