Can not use ble adv extension correctly with Timer running , when the board has no 32767Hz xtal.

[yinxu951]

There is no 32767Hz crystal oscillator on my circuit, so the clock source of softdevice is configured as RC to ensure that the system can function normally.
Now I use the extended broadcast package of Bluetooth 5.0 to transmit big data. At the same time, Timer has been triggering AD sampling through PPI combination. During the test, I found that it is impossible to send more than 100 bytes of data.
When the Timer is stopped at that time, the program can send broadcast packets of more than 100 bytes.

Strangely, in debug mode, when the timer is running all the time, more than 200 bytes of data can also be sent.

The  development environment is  SDK17、S140、NRF52840

[Susheel Nuguru]

What is the timeout period of the timer you created? and what is the priority of the timer interrupt that you configured in the sdk_config.h file?

I do not see any obvious connection between these two other than the above two things. Can you please attach your project for me to quickly test this on the nrf52840 DK?