Hi Dialog,
Found strange thing: there is no possibility of coexistence BLE and APU: when audio processing unit runs, BLE is unable to work.
When my device work without audio processing, it looks ok: advertising works, connection establishes as usual, all fine.
When I start APU task, connection breaks with 0x1F error (BLE_HCI_ERROR_UNSPECIFIED_ERROR). Also, in case APU started before connection establishment, I don't see any advertising data in my nRF connect.
Best Regards,
Egor Markov
Device:
Finally, link goes down forever after this call:
Looks like a critical bug.
毕竟,我的PDM针位于P1_04一个d P0_28 - as far as possible from RF part
Ok, at the PDM clock 512kHz and sample rate 8k it works. But I need better audio quality, than this
The maximum achievable PDM sampling frequency (without connection loss) is 665Khz. Really disappointed.
@PM_Dialog, could you please provide this problem to the team?
Hi Egor,
Sorry for our late response. Will take it offline from the forum.
Thanks, PM_Dialog