Re: interrupt priorities on nRF52

2020-10-25 Thread Xiang Xiao
On Mon, Oct 26, 2020 at 4:52 AM Matias N. wrote: > Hi, > while working on nRF52 BLE link-layer I experienced some problems due to > delayed ISRs. This can be quite problematic > for handling all the tight timings required by the standard. I eventually > reached an implementation that can deal wit

Re: interrupt priorities on nRF52

2020-10-25 Thread Matias N.
Yes, I'm aware of that page, but I was unsure if it still reflected current NuttX support. It indeed reads as something to be done, but looking at the code in NuttX there are some references to interrupt priorities. As per David's reply I understand there's no actual support. Best, Matias On S

Re: interrupt priorities on nRF52

2020-10-25 Thread spudaneco
There is a Confluence page describing how to implement nested interrupts if you want them (see also the TizenRT implementation)Sent from Samsung tablet. Original message From: David Sidrane Date: 10/25/20 4:35 PM (GMT-06:00) To: dev@nuttx.apache.org Subject: Re: interrupt pr

Re: interrupt priorities on nRF52

2020-10-25 Thread David Sidrane
Nuttx does not support nested iteruups. In fact if you enable prioritization, you will get random crashes due to the reentrace to the common isr. On Sun, Oct 25, 2020, 1:52 PM Matias N. wrote: > Hi, > while working on nRF52 BLE link-layer I experienced some problems due to > delayed ISRs. This c

interrupt priorities on nRF52

2020-10-25 Thread Matias N.
Hi, while working on nRF52 BLE link-layer I experienced some problems due to delayed ISRs. This can be quite problematic for handling all the tight timings required by the standard. I eventually reached an implementation that can deal with this relatively well (BLE standard gives some leeway for