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Suddenly I can no longer download new firmware into my PicoWeb Server. Whats wrong?

April 26, 2017download firmware longer picoweb server suddenly wrong

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Suddenly I can no longer download new firmware into my PicoWeb Server. Whats wrong?

1 Answer

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We have had reports from the field of the Atmel microcontroller occasionally entering a “confused” state when a PicoWeb Server is power-cycled with the programming cable attached to a PC. Once in this state the Atmel microcontroller will repeatedly fail to download new firmware. To correct this problem, unplug all of the cables from the PicoWeb server, wait a few seconds, re-apply DC power to the PicoWeb Server, then re-attach the other cables. The source of this problem appears to be “leakage” current, supplied to the PicoWeb via the cables attached to the PC, preventing a “clean” power-up sequence, as required by the Atmel flash programming circuitry.