XCore Exchange

Hi i have tried several time making a dfu enables app.

I have two builds

DFU is enabled in customdefines.h

BCD_device is also configured.

This one programs the code into the XMOS and the device show up and works correctly

xflash --boot-partition-size 0x30000 --factory xxxxxxxxxxxx_2xoxxd.xe

Then i generate a upgrade image:

xflash --factory-version 14.2 --upgrade 1 xxxxxxxxxxxx_2xoxxd.xe -o upgrade_image.bin

But in the DFu app this happens:

I really do not know where to search for this problem as i cannot find the error code: "TUSBAUDIO_GetDfuStatus: Function failed with error code 0xEF000004."
"

Please review this thread and post back with your results:

http://www.xcore.com/viewtopic.php?f=8&t=3031

Q1: What is the output from dfucons info ?

Q2: What is the output from dfucons download upgrade_image.bin ?

And forgot to request to apply the --v which is the verbose flag with the xflash tool for a detailed report of the issue.

I have also attached the Xflash with the "-v" switch below.

It is a bit difficult to see what to look for, when no in depth description of the stages are available for the DFU. And it has previously worked for us but we can simply not see what the issue is after we upgraded to the 6.12.6_rc3 firmware. Best regards

Sonny

Do you have an active clock during the upgrade?

http://www.xcore.com/viewtopic.php?t=5964

There is a crystal connected to the XS1-U8A and one of the clock oscillators feeding the MCLK input is allways active.

But we had it running in a earlier version. But yes if the I2C locks up we cannot start the DFU at all. From earlier experience.

Please review this thread and the suggestions from infiniteimprobability and ritchrock:

http://www.xcore.com/viewtopic.php?f=26 ... fu+version

Please post your results.