ReSpeaker Mic Array v2.0, can not find DFU Device

Products & Technology ReSpeaker
1

Hi All,
After flashing with:

sudo python dfu.py --download MicArrayV3_firmware/6_channels_dfu_4.0.0_firmware.bin

my device no longer enumerates in DFU mode. How can I recover/force it back into DFU? I’m considering reflashing with:

sudo python dfu.py --download 6_channels_firmware.bin

Is this the correct firmware and procedure to restore DFU detection?

Thanks

2

I ran into the same problem, put it into recovery mode per the docs by holding down either btn A or reset then plug into the USB C port (not the ESP32) then it should work fine.

3

@Michael_Arthur
Could you provide the documentation? Also, I don’t see a reset button on the board. Thanks.

4

Actually can you grab dfu-util and type in dfu-util -l and see if the xmos chip shows up for a start, I actually got confused with this one and the vxf3800

Could also double check your cable is a data cable if its micro USB, ran into this issue many times with other devices

5

I purchased the product from the following link.

When I run dfu-util -l, the only thing that appears is: found runtime: [2886:0018] ver=0400, devnum=32, cfg=1, intf=4, path=“3-1”, alt=0, name=“SEED DFU”, serial=“UNKNOWN”.