Trouble with Keil MDK-ARM, probably with CMSIS files.

RE: Trouble with Keil MDK-ARM, probably with CMSIS files.

Sarah — Sun, 22 Mar 2015 23:02:48 GMT

Was that on Windows 8? Could you explain how you disabled the application control?

RE: Trouble with Keil MDK-ARM, probably with CMSIS files.

Ole Morten — Fri, 01 Nov 2013 12:02:27 GMT

That's an interesting one indeed! I'll keep it in mind if I see any other cases with weird problems.

I've accepted this answer, since when you don't have an account, you can't do it yourself. Thanks for getting back and explaining! :-)

RE: Trouble with Keil MDK-ARM, probably with CMSIS files.

Severin — Thu, 31 Oct 2013 19:16:55 GMT

Back once more. Thanks for your reply Ole. I had checked the ARM::CMSIS pack and that was fine.

After another hour or so of debugging I finally came to think that the problem might be completely unrelated to the code, to Keil or CMSIS. And what a surprise when I made a blind guess and disabled my "application control" option in my firewall. There must have been a strange interaction between the firewall and the arm compiler and especially the assembler, since only those files were concerned that had __ASM statements in them.

So, actually, no problem with CMSIS.

That was a tough one, and yet so simple in the end.

Best, Severin

RE: Trouble with Keil MDK-ARM, probably with CMSIS files.

Ole Morten — Thu, 31 Oct 2013 09:35:38 GMT

I can't say I've heard about this particular problem before, but I'd recommend you to check two things:

That the ARM::CMSIS pack is installed, as shown in the attached screenshot.
That you have reinstalled the nRF51 SDK after having installed Keil again. The SDK installer places some files inside the Keil folder structure, that might cause problems if have been removed.