The device doesn't send out advertising data.

[tedwu1]

Hi,

I used SDK 1.4.0 of prj_qpps and the library of qn9020b2_lib_peripheral_v40.lib. I uses FXTH8709 (I2C master) to trigger BLE advertising through I2C and button (GPIO to inform QN902x) function.  It sent 4 advertising data records when QN902x received 1 I2C data. My target board doesn't have 32KHz crystal. We use 32K RC. QN902x cannot send out advertising if I define the parameter of CFG_DEEP_SLEEP. QN902x sent out advertising data correctly if I un-define the parameter of CFG_DEEP_SLEEP.
Could anyone guide me how to solve it?

Thank you in advance.

[mario_castaneda]

Hi @tedwu1,

Just to confirm, what are the modifications that you are doing? are you changing the adv data? what is the low power mode that you are working on?

However, could you please work with the Bluetooth LE version 4.2? qn9020b4_lib_peripheral_v42.a

Also depending on the MCU version that you have.

Did you look at the next AN?

https://www.nxp.com/docs/en/application-note/AN11814.pdf

Regards,

Mario