NCS: HW Peripheral use of Zephyr Bluetooth Controller

[mesh777]

I could not find hardware peripheral use description of Zephyr Bluetooth LE Controller, where would be specified exact instances which are used for nRF52.

I found this link, however there is no information about instance numbers. There is also documentation of SoftDevice for nRF5 SDK where similar information is provided, however I did not find it for Zephyr Controller.

[Simonr]

Hi

Please check out Zephyrs peripheral API reference here for details on each peripheral with instances, etc.

Best regards,

Simon

[mesh777]

Hi Simon, thanks for reply. I did not find the information I am searching for in the link you provided. I want to know which peripherals are reserved for Zephyr BT LE Controller, e.g. which Timers, PPI channels etc.

[Simonr]

Hi

Okay, I misunderstood your initial question then. I'm very sorry about that. The specific peripherals and instances used by the SoftDevice Controller this explained in detail here: Integration with applications — nrfxlib 1.9.99 documentation (nordicsemi.com).

Best regards,

Simon

[mesh777]

It is for SoftDevice Controller and I need information about Zephyr Controller (the second option of two available controllers, which is open source and selected by CONFIG_BT_LL_SW_SPLIT=y).

Currently I have interference between Zephyr Controller and application which is not the case if I use SoftDevice Controller. However Zephyr Controller uses less RAM and also we expect it to be more future proof. Therefore I need information about which exact peripherals it uses of nrf52 chip.

[Simonr]

PPI and DPPI for the Zephyr BLE contoller can be found here:

• https://github.com/zephyrproject-rtos/zephyr/blob/main/subsys/bluetooth/controller/ll_sw/nordic/hal/nrf5/radio/radio_nrf5_ppi_resources.h
• https://github.com/zephyrproject-rtos/zephyr/blob/main/subsys/bluetooth/controller/ll_sw/nordic/hal/nrf5/radio/radio_nrf5_dppi_resources.h

Best regards,

Simon