NRF_EVT_FLASH_OPERATION_SUCCESS fired only if Radio notifications enabled.

[Valer_I]

Hello, Before writing here I made some forum search and didn't find the answer. Previously I used radio notifications to sync ADC measurements with radio events. Now I need to disable radio notifications in the project and noticed that firmware become working unstable. The BLE connection breaks ocasionally and the flash write operations stuck. Softdevice used S110. I do not use pstorage but use own functions. Flash operation states are read from SD_EVT_IRQHandler (SWI2) ( NRF_EVT_FLASH_OPERATION_SUCCESS and NRF_EVT_FLASH_OPERATION_ERROR ). Noticed that no interrupt fired after flash operation (sd_flash_write()) . What could cause such behaviour? Why enabling Radio notifications make flashoperation working?

P.S. I read the errata for softdevice but do not see the link with my issue.

[Susheel Nuguru]

Which version of IC and which version of S110 are you using? Are you first enabling radio notifications and disabling them after sometime?Is it possible to share your project to replicate this behavior?