Soft device locks the processor for 250 micro seconds

[Nivetha]

Central : nrf52840
Peripheral: nrf52840
softdevice: s140 5.0.0.2 alpha
ATT_MTU size: 52
Connection event extension: enabled
DLE: ATT_MTU size + 4
Connection Interval: 10ms

I have a data acquisition unit at the peripheral(Tx) which has to be processed for every 40 micro seconds(needs the processor). But the issue is that the processor is locked may be by the soft device as per the documentation on "s132_SDS_v5.0 interrupt model and processor availability "where the processing at the end of a connection event could be of 250micro seconds max. I doubt if this is causing the delay in the samples at the receiver end. When I replace the data acquisition unit with other data values, the link is good. So, I doubt if this locking causing this problem. Looking for an alternate solution.

Thank you, Nivetha

[Petter Myhre]

You are correct. And it is running at the highest interrupt, so you can't interrupt it. Are you sure you need the processor? Have you looked into using PPI, EasyDMA and so on? Maybe you can explain a bit more about this acquisition element?