RE: nRF-IEEE-802.15.4-radio-driver SDK for Thread and Zigbee

Elia_pell — Tue, 13 Oct 2020 08:40:33 GMT

Dear Jørgen,

Thank you very much for the answer, in few lines you blow away a lot of doubts!

Best regards,

Elia

Jørgen Holmefjord — Mon, 12 Oct 2020 14:26:57 GMT

Hi,

SWI stands for Software Interrupts, and will trigger an interrupt handler in the application if enabled. The interrupt handler can process the events, or call additional handlers/schedulers.
SWI it typically used in operations with a Softdevice (BLE stack). The softdevice is an external application, provided as a precompiled hex-file. Communication with the softdevice happens through Supervisor calls and SWI. The softdevice cannot trigger handlers inside the application/radio driver, but it can trigger an interrupt in the application through SWI. If you are not using a softdevice, the radio driver, which is compiled along with the application, can call handlers directly in the application without the need to go through SWI. See the radio driver documentation for which files to include for the various radio arbiters.
I did create some example projects for an older version of the driver, but they do not provide support for the softdevice arbiter. Should be simple to update to the latest version, but I have not tested this.

Best regards,
Jørgen