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MV's avatar
MV
Icon for Occasional Contributor rankOccasional Contributor
7 years ago

USB Blaster disappearing - No Hardware (W7-64, Quartus Lite 18.1)

After using USB Blaster for over a decade I started having issues since I installed Intel Quartus Lite 18.1 on Windows 7-64 system. I can configure USB_Blaster hardware in Programmer, program my JTA...
a_x_h_75's avatar
a_x_h_75
Icon for Contributor rankContributor
7 years ago

This is a fairly common complaint. Using and FTDI device at the same time as a USB-Blaster can cause issues - on some setups. I frequently use FTDI based USB-UART cables - and they cause problems. However, I do find that, rather than having to reboot my machine I can recover my USB-Blaster by disconnecting my serial emulator (Tera-Term or equivalent) and unplugging the USB-UART cable.

In my experience this problem only seems to happen on 64-bit based windows setups. I have no trouble with this on the one 32-bit W7 machine I still use but have seen problems on my 64-bit W7 & W10 machines. No problem on Linux systems either (unsurprisingly).

Cheers,

Alex