Serial DFU Timed Out Issue

RE: Serial DFU Timed Out Issue

bjorn-spockeli — Wed, 19 Jun 2019 13:14:49 GMT

Could you try to change the UART pins from P0.06 and P0.07 to pins that are not connected to the interface MCU, e.g. P0.28 and P0.29?

RE: Serial DFU Timed Out Issue

rajis — Wed, 19 Jun 2019 12:12:42 GMT

1. HWFC is disabled in sdkconfig.h

2. UART PINS i have connected with P0.6 and P0.8 for tx and Rx respectively.

3. nrfutil Version 4.0.0 ,SDK Version -15.2

4. nrfutil command screenshot here i have attached while updatiing firmware.

5. Bootloader debug messages also attached for your reference.

Please help me to solve this issue.

devzone.nordicsemi.com/.../serialdfulog.txt

Regards

Raji

RE: Serial DFU Timed Out Issue

bjorn-spockeli — Wed, 19 Jun 2019 11:35:34 GMT

Can you post the nrfutil command that generated the output ?

Which pins on the nRF52840 DK are you connecting the FTDI cables to?

Have you disabled HWFC in the bootloader code?

Can you attach the log output from the bootloader example?

RE: Serial DFU Timed Out Issue

rajis — Mon, 17 Jun 2019 10:53:40 GMT

I have tested with V4.0.0 nrfutil for serial update.

Here i have attached the screenshot of the error during serial update... .Please help to solve this issue.

RE: Serial DFU Timed Out Issue

bjorn-spockeli — Mon, 27 May 2019 07:35:15 GMT

Hi Raji,

You are using a very old version of nrfutil that is not compatible with SDK v15.2.0. The following is stated in the nrfutil documentation

The DFU package format transitioned from legacy to modern in SDK 12.0. Depending on the SDK version that you are using you will need to select a release of this tool compatible with it:

Version 0.5.2 generates legacy firmware packages compatible with nRF SDK 11.0 and older
Versions 1.5.0 and later generate modern firmware packages compatible with nRF SDK 12.0 and newer
Versions 4.0.0 and later generate modern firmware packages compatible with nRF SDK 15.1 and newer
Versions 5.0.0 and later generate modern firmware packages compatible with nRF SDK 15.3 and newer

Please download version v4.0.0 using this link and generate a new image. Also make sure that you connect the CTS/RTS pins of your FTDI adapter. If it does not have CTS/RTS pins, then you need to disable HWFC in the bootloader firmware as I have explained in my previous reply.

-Best regards

Bjørn

RE: Serial DFU Timed Out Issue

rajis — Mon, 27 May 2019 05:23:30 GMT

Which version of nrfutil are you using to perform the DFU? Version - 0.3.0

How are you connecting the nRF52840 to the computer? Are you using a FTDI adapter? – Connecting to a computer via a FTDI adaptor

The UART bootloader in our SDK uses Hardware Flow Control (HWFC) by default, i.e. NRF_DFU_SERIAL_UART_USES_HWFC is set to 1 in sdk_config.h in the bootloader project. So you need set this to zero if you do not have any CTS/RTS pins. Note: The serial bootloader is designed to use HWFC so it may not work properly without HWFC for high baudrates. – Flow Control is disabled and have checked with baudrate of 9600 as well.

Regards

Raji

RE: Serial DFU Timed Out Issue

bjorn-spockeli — Tue, 21 May 2019 13:45:07 GMT

Hi Raji,

Which version of nrfutil are you using to perform the DFU?

How are you connecting the nRF52840 to the computer? Are you using a FTDI adapter?

Best regards

Bjørn