DFU enter check

[dlip]

In SDK 15 the bootloader DFU enter check in nrf_bootloader.c has the following code:

    if (NRF_BL_DFU_ENTER_METHOD_GPREGRET &&
       (nrf_power_gpregret_get() & BOOTLOADER_DFU_START))
    {
        NRF_LOG_DEBUG("DFU mode requested via GPREGRET.");
        return true;
    }

Why isn't this (NRF_BL_DFU_ENTER_METHOD_GPREGRET && (nrf_power_gpregret_get() & BOOTLOADER_DFU_START) == BOOTLOADER_DFU_START) ?

[tesc]

Hi,

Thank you for reporting this issue. Bug reports are always appreciated!

Yes, your suggestion is correct. This is a known issue and the fix is just as you describe.

There is also a related issue in nrf_bootloader.c, see Bug in how bootloader treats GPREGRET and GPREGRET and nrf_bootloader.c evolution proposal.

Regards,
Terje