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10 years, 10 months ago.
Powerdown firmware & inactive USB device
I installed the experimental semihost_powerdown firmware. Initially my mbed drive showed up as per usual. After uploading some code that contained the power down instructions my device no longer shows as a usb flash drive. I am therefore unable to upload a new binary or firmware. I attempted to put my LPC1768 into ISP mode, but this did not work. Power-cycling and resetting also did not resolve the issue. Is there anything else I can try?
2 Answers
10 years, 10 months ago.
With resetting, do you mean holding reset while plugging it into your computer, and keep holding reset? That should prevent the LPC1768 from being able to send a powerdown message to the bootloader IC.
10 years, 10 months ago.
Holding reset while plugging the LPC1768 into my computer solved the problem. Thanks for your quick and helpful response.