SDK11 NFC + BLE UART not working

[Dajgoro Labinac]

Hi,

I've encountered a problem described here:
https://devzone.nordicsemi.com/f/nordic-q-a/37917/nfc-issue-when-migrating-to-sdk11

Since I could not figure out the issue, I decided to start from scratch with SDK11 (which I have to use).
I took a fresh ble_app_uart and record_url example, on their own they both work, but when merged the NFC does not.
What happens is that whenever the code executes the ret_val = nfcSetup(nfc_callback, NULL); line it halts.
BLE keeps working, but the NFC initialization code is stuck.

I've trying setting the clock settings to NRF_CLOCK_LF_SRC_RC and set CLOCK_ENABLED 1 but that had no effect.

What is preventing the NFC code from initializing?

[haakonsh]

Well I strongly urge you to use SDK15 as SDK11's NFC support is not that great, and there are so, so many improvements in the SDKs since 11. 

[Dajgoro Labinac]

As I mentioned before, I have the entire firmware written in SDK11 which took a lot of work, so redoing everything in a newer version would take a while. I had it working in SDK11 preview, so it has to be able to work in SDK11 too.

[Dajgoro Labinac]

Can you just write me down a checklist of things I have to do/watch for when merging those two examples, maybe I've missed something.

Edit:
I did the same thing with SDK12 and it worked straight away, but then again the configs in SDK12 are different.

[haakonsh]

Even SDK12.0 is too old, you need to go to SDK14.2 or SDK15.

[Dajgoro Labinac]

Yes.

On SDK14 when I would built the ble_app_uart example, it would advertise but I could not connect to it, and I could not figure out what was the problem. On SDK15 keil started giving me some random errors due to some changes in the libraries, so I couldn't get anything to build there.
Also my code being in SDK11 moving it to SDK12.3 is the simplest alternative which resolves this problem.