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usb doesn't work
  • stanley
    hi, I just got my board from Flyduino after 3 weeks of waiting... but it doesn't work :(
    USB is not detected on any PC, I have also tried to use external FTDI to talk to the board - no chance. No communication at all - I tried flashing tools, the standard control tool for both 1.3 and 2.0...nothing worked.
    The board seems to be alive - I can see red light + green flickering, then after some time the green stays solid. But the uart seems to be dead... Any ideas what might be wrong? I am really upset, because I invested a lot of money into my equipment, then I waited a long time till I get the board and in the end it doesn't work :(
    I am a skilled embedded programmer, so I believe I didn't miss anything that could cause these problems... Thank you!
  • Yu3u
    Hi stanley, at first did you try to contact to seller?
  • stanley
    sure, I wrote email to Flyduino, but no response yet... I thought that here I get some hints from people who designed the board... In the meantime I checked soldering on the board, it looks fine to me. RX/TX signals are passed to the appropriate pins on Atmega chip.. I can hook it up to the oscilloscope in my office, but first I need to know if I didn't miss anything...
  • Yu3u
    Perhaps you have got defective board, i advise you exchange it with your seller.
  • alexmosalexmos
    Hello, stanely!

    First of all, check that new COM port appears in you system when you plug USB cable. Second, try to upgrade to latest 2.0 firmware using AvrdudeR from here: http://www.simplebgc.com/files/AvrdudeR.zip. Use run.bat. Specify right COM port. When flashig started, GREEN should blink 3 times. It will show console output, if something like "Not in sync" - try the same on different PC (very rare issue, but some PC cant upload firmware). If failed, double check soldering RX, TX, Reset pins of Atmega (or re-solder it). If nothing work, sorry but you need to replace board by guarantee.
  • Yu3u
    stanley, try to write to support@flyduino.net, i think you will get the answer.
  • stanley
    hi Alex, as I wrote: no comport appears. Device manager doesn't even show faulty device. Nothing... I tried 4 different computers, on three I get no feedback, on 4th computer I see "unknown device" that is not responding. I tried to install drivers, it always failed (on the only PC that could at least see the unknown device).
    I have also tried 2 different FTDI adapters - they didn't receive anything from the board. I also measured RX/TX pins on the CPU, there was some voltage, but no communication (from TX pin on Atmega).
    I tried to pull Reset to GND - the board seems to reset, green led switches off, red stays lit. Then immediately after releasing reset, I tried to upload hex file using external FTDI interface... it was not communicating.
    It really seems to be faulty board :(
    I hope Paul will be able to replace it.
    Thanks for your help!
    Regards,
    Stano
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