It's a USB to I2S bridge devicemon2 wrote:Not sure on how protected the CPU can be but considering the vendor is noting that you can obtain firmware for this widget from XMOS, you could probably do the same from XMOS channels. Not into audio but what is this ? An audio device with a VU meter using OLED displays ? Check around the website and you may be able to locate the source and/or binary file for this device.
Yes connected to XTAG-3 but don't know where how to use this - do I need to use xflash tool with XTAG to read flash ID?If the internal flash is not protected, you should be able to read it out. Have you attempted to connect to an external XTAG-3 tool ? If yes, run the xflash tool and attempt to read out the FLASH ID only. DO NOT attempt any writes to this target device till you have a clean backup of the firmware.
This CPU must be with internal flash. About to post some details in a few minutes to compare notes on the markings.
Where does the DFU loader fit into this scenario? I'm confused - I thought DFU was the way to load/retrieve firmware from XMOS device?
This is more than a little confusing with different datasheets showing different id markings & the above DFU Vs xflash info
BTW, I very much appreciate your time & efforts, mon2 in trying to alleviate my confusion