Detecting interrupts in a block of code

[Philip Odom]

I'm working with the nRF51822, using the S110 soft device.

My application includes some measurement functions that are timing critical. Ideally, the code would be atomic, but I think this is impractical while using the soft device.

Instead, I would like to be able to detect if a measurement is interrupted and, if so, discard the measurement and repeat it. Is there any way to do this?

The measurement cycles vary in time, but will generally be < 100 us.

Thanks, Philip

[Nguyen Hoan Hoang]

I think <100us is fast enough to have it runs within the Interrupt routine and set your Interrupt has High priority. Then your measurement wouldn't be interrupted at all.

[RK]

Yes it will - the softdevice gets the highest priority interrupts and if you try this, however fast the routine is, it will occasionally get interrupted.