TX Output from nRF51822

RE: TX Output from nRF51822

Ole Bauck — Wed, 31 Aug 2016 09:07:30 GMT

Great that you figured it out, and I am glad I could help.

You can check out this blogpost on RAM and ROM management, it is for an earlier SDK and SoftDevice, but is still valid. Only thing that differs is the amount of RAM/flash (ROM) the SoftDevice occupies. RAM/ROM size for the new SoftDevice you can see here.

RE: TX Output from nRF51822

james.eberhardt — Wed, 31 Aug 2016 03:24:48 GMT

Thank you very much Ole. The problem actually did end up being caused because of the difference in RAM. I needed to change the IRAM setting in the target options. I would love to see a more detailed explanation on how to figure out those settings.

Your suggestions on how to use the Debugger really helped a lot, in that I was able to figure out where the app was stopping. I've used debuggers before, but hadn't really started using it with Keil.

RE: TX Output from nRF51822

Ole Bauck — Tue, 30 Aug 2016 14:45:34 GMT

Also take a look at this: devzone.nordicsemi.com/.../

RE: TX Output from nRF51822

Ole Bauck — Tue, 30 Aug 2016 14:44:55 GMT

You go into debug by clicking: Debug -> Start/Stop Debug Session, or ctrl+F5. In debug mode you can start, stop, reset and step through the code (see under the same Debug tab where you started the session and the related icons on the toolbar). You add breakpoints in your code by clicking next to the line numbers (will add a red circle).

RE: TX Output from nRF51822

james.eberhardt — Tue, 30 Aug 2016 12:50:47 GMT

I'm using Keil with the development board to transfer the code to the other boards.

RE: TX Output from nRF51822

Ole Bauck — Tue, 30 Aug 2016 12:47:27 GMT

Which toolchain/IDE are you using to develop/download your code (GCC/eclipse, Keil, IAR, Segger Embedded Studio)?

RE: TX Output from nRF51822

james.eberhardt — Tue, 30 Aug 2016 12:24:21 GMT

I'm not sure how to go into debug mode. Is there a tutorial on that somewhere?

RE: TX Output from nRF51822

Ole Bauck — Mon, 29 Aug 2016 11:25:52 GMT

The one from ebay has a chip with less RAM, 16KB see here, but I don't think that is the issue.

You should go into debug mode and check what is going on. Is the program running at all or running as it should?