MPSL ASSERT: 112, 2134; HFXO Starts but BLE advertising does not!

[X4ce]

Hi,

I suddenly started getting MPSL ASSERT: 112, 2134 upon BT enable and upon research came across this post (link) and used following code:

void clock_started_cb(void)
{
	printk("HFXO started\n");
}

int main(void)
{
	int err; 
	
	err = mpsl_clock_hfclk_request(clock_started_cb);
	if (err) {
		printk("mpsl_clock_hfclk_request() failed (err: %d)\n", err);
	}
	...

HFXO starts on peripheral_lbs, beacon and on my app but advertising only starts on peripheral_lbs.

How can I start advertising on my app as I only need advertising.

Thanks

[Vidar Berg]

Hello,

Please try to request the HFXO using the onoff_request() function instead as shown in the linked post. Requesting HFXO via the onoff API ensures that the oscillator cannot be released by other modules.

Did you measure the startup time of the crystal oscillator?

Best regards,

Vidar

[X4ce]

Thank you for your response.

I thoroughly checked my custom board but don't why suddenly DEC4 and corresponding cap got isolated apparently bad soldering. I then re-soldered the chip and got BLE working.