KL720 Dongle Error = -7 (USB: Operation timed out)
I built the get start example in the Windows 10 environment according to the document center, but it happened
error = 103 (Device waits inference results timeout) or error = -7 (USB: Operation timed out) occurred
Below is the scanned information:
Where could this be wrong?
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Comments
Hi shao-xuan lin,
Is there any part you changed, including model, image, or code?
And can you provide your plus version?
Thanks.
Otis Hsieh
I did not change any code
plus version = 1.2.1
Because my dongle firmware is already KDP2, and there is no KL720 firmware in Kneron_DFUT_v1.2.1, so I did not perform that step
Thanks.
Hi shao-xuan lin,
It seems that you need to update firmware again because your plus version is 1.2.1.
Firmware can be found in ${PLUS_FOLDER}/res/firmware/KL720/, not in DFUT files.
You can use DFUT to update firmware and retry it.
Thanks.
Otis Hsieh
Thank you very much for successfully solving the problem