ANT+ ble_ant_app_hrm report SoftDevice Controller ASSERT: 62, 1551

RE: ANT+ ble_ant_app_hrm report SoftDevice Controller ASSERT: 62, 1551

nanty — Tue, 31 Mar 2026 09:22:46 GMT

Hi, Kenneth
I might not be able to wait a few weeks. Could you provide a solution to the current problem? Thank you.

RE: ANT+ ble_ant_app_hrm report SoftDevice Controller ASSERT: 62, 1551

Kenneth — Fri, 27 Mar 2026 09:56:53 GMT

Hello,

I just got some indication there may an updated ANT add-on in a few weeks time, with support for the ncs v3.2.4, I suggest to wait for it before you dig too much into this issue. It will be posted on https://www.thisisant.com/APIassets/ANTnRFConnectDoc/doc/compatibility.html#sdk-compatibility when available.

Kenneth

RE: ANT+ ble_ant_app_hrm report SoftDevice Controller ASSERT: 62, 1551

nanty — Fri, 27 Mar 2026 08:24:33 GMT

Hi Kenneth,
Regarding this issue, it reappeared after we added some of our code. Whenever the device is bonded to the phone and then restarted, calling the `bt_le_adv_start` API triggers a hard fault. Unfortunately, I can't reproduce it in the sample and provide a project like I did last time. Do you have any suggestions? Or could I add some logs as you requested to help you analyze the problem?

RE: ANT+ ble_ant_app_hrm report SoftDevice Controller ASSERT: 62, 1551

Kenneth — Sun, 15 Mar 2026 19:05:35 GMT

Hi,

Good to hear that it works!

1. I am not sure what future plans may be, but I don't think there is such plan at the moment no. So you may need to manually patch this yourself yes, it might be possible to use west patch: https://docs.zephyrproject.org/latest/develop/west/zephyr-cmds.html#working-with-patches-west-patch

2. There is currently no ANT support after v2.9.2, ref:
https://www.thisisant.com/APIassets/ANTnRFConnectDoc/doc/compatibility.html#sdk-compatibility

Kenneth

RE: ANT+ ble_ant_app_hrm report SoftDevice Controller ASSERT: 62, 1551

nanty — Fri, 13 Mar 2026 02:52:08 GMT

Hi,

Kenneth,

This patch has been verified as working. I have two questions that will determine whether I need to maintain the sdk-nrf repository separately:

1. Will this patch be merged into the 2.9.2 repository?

2. My current ANT repository is associated with 2.9.2, can I switch to 3.3.0?

What suggestions do you have?

Best regards,

Nanty

RE: ANT+ ble_ant_app_hrm report SoftDevice Controller ASSERT: 62, 1551

Kenneth — Thu, 12 Mar 2026 15:12:45 GMT

Hello,

Sorry for the bit late answer.

We have found that this issue is a bug in the 3-wire coex driver which appears when CONFIG_PM_DEVICE=y and CONFIG_PM_DEVICE_RUNTIME=y.
A fix for the issue has already been submitted to the main branch:
https://github.com/nrfconnect/sdk-nrf/commit/5a05fb35f53e56fe04526e41dd40ae0e25a80ad1

The attached patch is adapted for NCS 2.9.2.

devzone.nordicsemi.com/.../coex_5F00_diff-1.diff

Hope that helps,
Kenneth

RE: SoftDevice Controller ASSERT: 62, 1551

nanty — Tue, 10 Mar 2026 07:33:37 GMT

hi,

Have any update? Thanks.