trying BLE and ESB parallel - SWI0 and radio

RE: trying BLE and ESB parallel - SWI0 and radio

Dom O — Sun, 29 Mar 2015 16:01:11 GMT

I found an alternate library (app_timer_ble_gzll.c) in the SDK that seems to overcome this issue.

From the Keil uVision, select Project->Manage->Run-Time Environment.
Select and expand "nRF_Libraries", and then "app_timer".
Then change the Variant from "default" to "Gzll", and OK it.

RE: trying BLE and ESB parallel - SWI0 and radio

Asbjørn — Thu, 19 Mar 2015 07:56:57 GMT

Are you using Radio Notification? If not, you can re-use the SWI setup towards Radio Notification. I'm not sure if you have had a look at the code examples showing usage of S110 with ESB/Proprietary radio in time slots: github.com/.../nRF51-multi-role-conn-observer-advertiser

If you don't hand control over to the BLE softdevice at the end of the time slot, the BLE connection will fail. You will drop the link, but the application shouldn't fail. You could do a re-connect. This isn't recommended, you should disconnect and disable the Softdevice if you think that you have to use more than what you are give as time slots.

RE: trying BLE and ESB parallel - SWI0 and radio

ricardo_marinheiro — Thu, 12 Mar 2015 15:50:12 GMT

Thank you!!!

I've tried to do just that, but then again BLE uses all the SWIs except one according to the docs, therefore if you use the app_timer, no SWI is left to be used. But Even if you ignore this and try just to configure another SWI in the ESB lib constants h file, the error is exactly the same, which leads me to thing that at some point I'm using the wrong header file to configure this or someone hard coded the SWI0 handler as default without using a selection from the constants. Still this is just a long shot hunch given the compiler return is no different changing the ESB to a different SWI or not.

At the moment I'm trying to use uESB once it uses no SWIs and I can build my own event handler. As soon as this works the problem will be understanding if by the end of the given time slot, the BLE will or won't reconfigure the radio to the needs, or will just fail.

Thank you!!

RE: trying BLE and ESB parallel - SWI0 and radio

Asbjørn — Thu, 12 Mar 2015 15:30:52 GMT

You can redefine which interrupt to be used by the ESB, that's not a problem. Just make sure it's given the highest priority during the timeslot event. You can't have ESB and BLE running at exactly the same time, so you can only use ESB inside the time slots that you are assigned.