USB Bootloader CRASH on Vista

Discussion in 'Embedded Systems and Microcontrollers' started by mindthomas, Mar 9, 2008.

  1. mindthomas

    Thread Starter New Member

    Mar 9, 2008
    4
    0
    Hi, i'm new here so i hope you can help me :)
    For two weeks ago i had a great USB Pic18F2550 programmed and worked, both in Bootloader mode (Programming mode),
    and it was also running great in Testing mode (I had maked a Visual Basic program, and a PIC Code in Pic Basic, so i could control some LED's)

    Then i don't know what i had done, but suddenly when i connect the PIC To USB when the PIC is in Bootload Programming mode, my Windows Vista Home Premium crashed into Blue Screen Of Death, saying that there was a problem with the mchpfsusb.sys driver.
    Where in the driver the Error happends is different everytime i try to connect the USB to my computer, but it crashes, and restarts!
    The funny thing is that my PIC works in USB Testing mode with my Visual Basic application, but i can't set my PIC into Programming mode without having my computer to crash!!

    I hope you can help me, because i have reinstalled my computer last night, because i thought that could fix the problem, but NO.

    Best Regards
    Thomas Jespersen
     
  2. mindthomas

    Thread Starter New Member

    Mar 9, 2008
    4
    0
    After i changed the PIC and programmed the bootloader into the new PIC (still PIC18F2550) it is working! But after i got it working, i thought what could had been the problem, and i saw that the 470nF capasitor was going to RC2 instead of VUsb
     
  3. n9352527

    AAC Fanatic!

    Oct 14, 2005
    1,198
    4
    What version of the mchpfsusb.sys are you using? I'm using 1.0.0.6 from 1.3 release of the stack under Vista and it works great.
     
  4. n9352527

    AAC Fanatic!

    Oct 14, 2005
    1,198
    4
    Ignore my post, glad that you've solved the problem.
     
  5. mindthomas

    Thread Starter New Member

    Mar 9, 2008
    4
    0
    Ya, me to. That capacitor is a major source of problems for 18f2550 users, many is forgetting or putting that capasitor in a wrong place!
     
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