DFU-OTA on bl653dvk with external flash and BLE

Hello Shikamaru,

Does the BL653dvk have external flash? It does not seem like it to me. Maybe you have attached an external flash yourself? Regardless, you need to configure the DTS/overlay file so it's set up to communicate with the external flash, like it's done by default in the nRF52840 DK board DTS file (uses mx25r64 external flash) and the nRF9160DK board DTS file (also uses mx25r64). Both of these DKs have an onboard external flash.

Best regards,

Simon

Thanks Simon,

user72692 said:

Since it reads 000000, it seems like it is not in contact with the spi-flash.

yea i got it . My bad! . it was mistake in mcuboot .conf file . now it got solved .

user72692 said:

Do you have a logic analyzer? Try reading the SPI pins and see if there is any activity.

yep did that also , getting the signals.

best regards,

Shikamaru

I'm happy you made it work.

Could you verify the answer that contains the solution?

Best regards,

Simon

I'm happy you made it work.

Could you verify the answer that contains the solution?

Best regards,

Simon