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Daft_engie's avatar
Daft_engie
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1 month ago
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USB Blaster conflicts with other FTDI devices result in PC crash

Hi folks, I realise the USB blaster is an old piece of kit and so driver development may be abandoned, but thought I might as well ask. The issue my colleague and I have seen is that for PCs with F...
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  • FvM's avatar
    FvM
    1 month ago

    Hi David,

    as most AI generated answers, above post mixes correct with incorrect information.

    I can confirm that the combination of most recent FTDI and USB Blaster drivers works well for me with Windows 10 and 11. At least on my old Windows 10 computer drivers have updated several times without crashes, may be just luck. I had a problem with older drivers that USB Blaster didn't work if an FT232 USB-to-RS232 converter was active. The problem is gone with latest driver and jtagserver versions, but I don't why exactly.

    I'd expect reinstalling USB Blaster driver should work for you.

    Regards Frank

FvM's avatar
FvM
Icon for Super Contributor rankSuper Contributor
1 month ago

Hi David,

as most AI generated answers, above post mixes correct with incorrect information.

I can confirm that the combination of most recent FTDI and USB Blaster drivers works well for me with Windows 10 and 11. At least on my old Windows 10 computer drivers have updated several times without crashes, may be just luck. I had a problem with older drivers that USB Blaster didn't work if an FT232 USB-to-RS232 converter was active. The problem is gone with latest driver and jtagserver versions, but I don't why exactly.

I'd expect reinstalling USB Blaster driver should work for you.

Regards Frank

Daft_engie's avatar
Daft_engie
Icon for New Contributor rankNew Contributor
1 month ago

Hi Frank

Thanks for the reply. Must admit it took me longer than it should to realise the above was AI, a lot of the info sounded reasonable.

As you say uninstalling the altera driver, applying updates then re-installing altera driver works, and that will do for now. Does require that you know an FTDI update is incoming.
For the HP Prodesk 400 PCs that we were setting up for the product my company sells, the crash results in a blue screen, and several restarts, but then boots. Annoying but fixable.

Sounds like your PC is dealing with it more gracefully!