on_ble_powered() callback
We have an application where the host MCU sends a 4k page of data to the DA14585 via SPI interface every ~6.3 seconds. The DA14585 then relays this data to the radio via notifications. Between pages, we go into extended sleep mode, and the master MCU wakes the DA14585 using the Wakeup Timer. The SPI data is received via DMA, and the DMA finished IRQ handler then posts a custom message to the kernel to initiate the nofications and go back to extended sleep. All this appears to be working well, except as follows:
