nrf52 serial DFU is not providing CRC

RE: nrf52 serial DFU is not providing CRC

Simon — Thu, 31 Jan 2019 08:22:07 GMT

Have you resolved this?

RE: nrf52 serial DFU is not providing CRC

Goudra — Fri, 25 Jan 2019 16:59:22 GMT

Hi,

Thank you for the reply,

I tried with 64 bytes with 57600 baud, but I'm getting Hardfault error.

then i tried with 32 bytes with 57600 baud and 1 sec delay in between each packet. Now its working fine.

I was tested it with 500msec and it is going for hardware fault. It didnt write it flash.

I really don't know why it need 1sec to write Flash memory. I'm not trace out where its going wrong.

i'm sending 32k bytes of data. It will take lot of time to send. So is there any solution for this?

Thanks and regards,

Basava

RE: nrf52 serial DFU is not providing CRC

Simon — Fri, 25 Jan 2019 16:16:53 GMT

A reason that the DFU controller doesn't receive a response might be because the communication is going too fast for the DFU target (no hardware flow).

Try sending a CRC request after each packet, which will check the validity of the data and make the transfer more robust.

Best regards,

Simon