IAR Flash Loader Error nRF52810

RE: IAR Flash Loader Error nRF52810

Vidar Berg — Fri, 17 Apr 2020 07:14:40 GMT

Glad to hear that you were able to recover the boards! I'm not that familiar with how this works in IAR, but it sounds like the Flash loader might be required with other non Jlink programmers.

RE: IAR Flash Loader Error nRF52810

zkarim — Fri, 17 Apr 2020 04:39:36 GMT

So I am able to access the Flash control registers manually and erase the entire flash area, thank you! Boards saved.

With regard to deselecting the "Use Flash Loaders" in the Debugger Download Options, when I do that, the application does not get programmed, and I get the following error:

When I use the flash loader, the application programs, and I'm able to debug.

RE: IAR Flash Loader Error nRF52810

Vidar Berg — Thu, 16 Apr 2020 11:35:06 GMT

Hi, I don't have a PE Micro to test with, unfortunately. I tried to replicate this with the regular J-link by adding automatic loading of the Softdevice in a BLE example then went back and debugged the blinky example starting at 0x0, but the Softdevice got overwritten successfully so didn't encounter any problems with debugging.

The problem in your case appears to be that the debugger fails to erase the MBR section of the Softdevice at address 0 for some reason. Does the PE Micro have a separate programming utility you can use to perform a chiperase? Alternatively, give you register access so you can do the "Erase all" manually?

And probably not related but the following option must be enabled when debugging applications that uses the Softdevice:

Also, it may be worth trying to update to the most recent MDK release in case it includes improvements to the flash loader. It's available for download at https://www.nordicsemi.com/Software-and-tools/Development-Tools/nRF-MDK/Download#infotabs

RE: IAR Flash Loader Error nRF52810

zkarim — Thu, 16 Apr 2020 04:39:39 GMT

Hi,

I tried that, and after it loads, it immediately starts running, but it doesn't stop at main().

RE: IAR Flash Loader Error nRF52810

hmolesworth — Thu, 16 Apr 2020 03:42:34 GMT

Try un-checking the "Use Flash Loader" box .. worth a try, it causes issues with SoftDevice etc