Issues after porting over from nRF51422 to nRF51822

RE: Issues after porting over from nRF51422 to nRF51822

exgreyfox — Tue, 23 Oct 2018 15:27:17 GMT

I understand. I have contacted several FAE's from Nordic who visited my place of work recently so I am currently trying to work out an NDA so that we can pass around schematic and layout files. I also wanted to post on here so that I can find more help in parallel and see if there is anything glaring as far as my approach in how I have set up my project files etc. One thing I have in the works is I am having the 51422 on my dev kit being replaced with a 51822 to see if the issue follows the 51822. Will keep updating this thread with results.

RE: Issues after porting over from nRF51422 to nRF51822

Marjeris Romero — Tue, 23 Oct 2018 08:42:41 GMT

Hi Stan,

Ok so that is out of the question now. Do you run the same firmware in both hardware setups? Is there any other difference you can think of between your two setups? If everything else is the same I think you will need to upload your schematics and layout files of your custom setup so I can see if something is missing there.

Best Regards,

Marjeris

RE: Issues after porting over from nRF51422 to nRF51822

exgreyfox — Mon, 22 Oct 2018 15:01:15 GMT

The main microcontroller operates at 1.8v. Yes, logic levels of the UART on both chips is 0v logic LOW and 1.8v logic HIGH.

RE: Issues after porting over from nRF51422 to nRF51822

Marjeris Romero — Mon, 22 Oct 2018 13:00:59 GMT

Hi Stan,

Just to be sure, what voltage is the main microcontroller operating at? Is the UART logic HIGH of the main microcontroller the same as logic HIGH of the nRF51822?

Best Regards,

Marjeris