nRF52 RTX support in SDK 11 with softdevice

[Tien]

I found there is no ble_app_hrs_rtx PCA10040 , and release note said:

nRF5 SDK v11.0.0

• Heart Rate Application with RTX: Support for nRF52 has been removed.

So I tried to migrate from the old one ( SDK 11.0.0-2 alpha ) to the SDK11. And I found the S132 2.0.0 has changed the SVC priority therefore set the RTC1 IRQ priority as same as SVC, but it doesn't work. When the osTimer time out, the Hardfault - UsageFault: INVSTATE occur.

Is there any reason for removing nRF52 RTX support ?

[SRA]

Does this have to do with Nordic removing CMSIS support maybe?

I'm also investigating using RTX with an nRF52 and softdevice, so I'd also like to know.

[RK]

Whatever it has to do with it's got nothing to do with CMSIS. Nordic only removed support for the CMSIS packs, the way of distributing bits of the toolset, they didn't do away with support for CMSIS, the common abstraction layer for ARM.

[Anders Strand]

Hello.

When porting RTX from nRF51 to nRF52, the RTX was no longer stable together with a softdevice. This is because of architectural differences between the two. The support was removed until we have restructured the nRF52 RTX port from the ground up, using a new form of critical sections and tickless idle handling.

As RK pointed out, it has nothing to do with CMSIS.

[kvrbek]

Hi,

Is there any news about concurrent use of RTX and softdevice on nRF52?

Regards

[markm]

As kvrbek asked below, is there any more news on the concurrency issues of RTX and softdevice in the current SDK?