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 ?