Radio Notification and PPI

[FA]

Hi,

If I configure the radio notification to ACTIVE and then set a DISTANCE of 800us, is there any way that I can configure PPI to toggle a pin for example?

I know that I can just do the toggle in the SWI1_IRQHandler, but I want to know if there is any EVENT that I can use with PPI to avoid typical latency associated with software interrupts?

In other words, if I want to do something within a distance of the radio active, after configuring the radio notification, what should I put as NRF_PPI->CH[0].EEP =?

Using nRF52, SDK 11, S132.

Thanks!

[endnode]

I don't think there is any task/event to hang it on but isn't PA/LNA feature of Nordic Soft Devices exactly what are you looking for? They should toggle the PIN according to your settings and that should be able to invoke PPI of any other HW task if configured properly...

[FA]

Thanks endnode. I looked at PA/LNA feature, but as far as I understand it only activates a pin within a fix distance ~ 5usec. First problem is that how can we have larger distances? Is it programmable in this mode? It doesn't seem this way to me. Second problem is that pin toggle was just an example, actually I need to do some other tasks. Are you suggesting to configure the pin that is being toggled by the PA/LNA feature to again trigger the desired task in an PPI setting?

[endnode]

Yes, that's what I meant: use nRF HW TESK&EVENT mechanism and link it to that GPIO PIN change. However this is not configurable in time so if you need something sooner then few milliseconds then only radio notifications and its interrupt handler.