nfc_t4t_lib_gcc.a with IAR 8.42.2 can not be downloaded and debugged

[atthorv]

Hi

I'am trying to get working the nfc_uart_tag example from SDK16 on a nRF52840-DK with the IAR Workbench 8.42.2.
As mentioned in the post  IAR Library (v7.xx to v8.xx) compatibility I replaced the nfc_t4t_lib_iar.o with the _gcc version of that library.

The result is that the example builds without errors or warnings but when trying to Download and Debug the IAR hangs and finally crashes.

Can you please give an advice or directions how to solve this problem?

Thank you

[Vidar Berg]

Hi,

Do you see any errors reported in the Debug log, or does it just crash? I tried the nfc_writable_ndef sample with the gcc built library and  IAR 8.22.1 but I was able to debug as you can see from the screen dump below.

[atthorv]

Hi Vidar

Thanks for your answer. No I do not see any errors in the Debug log, because the IDE freezes and I have to kill the task manually.
Are there any settings in the IAR options which I have to adjust when using the nfc_t4t_lib_gcc.a library? Perhaps I'am missing something simple.

Thank you

[Vidar Berg]

Hi,

Ok, thanks for confirming. I was hoping there was an error message with more information about the problem. I don't have a license for v8.42.2 otherwise, I would have upgraded and repeated my test. Have you tried the same with thee original nfc_writable_ndef sample? The only change I made was to replace the library.

[atthorv]

Hi Vidar,

yes in deed I tried also the nfc_writable_ndef example as it comes with the examples from the latest nRF5_SDK_16 but unfortunately I had the same behavior with the IAR IDE when I tried to use the nfc_t4t_lib_gcca.a library.

[Vidar Berg]

Hi,

Ok, so it seems like something may have changed between version 8.22 and 8.42. I would suggest that you forward this question to IAR support. It should not crash even if the library turns out to be incompatible with this release.