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Altera_Forum's avatar
Altera_Forum
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14 years ago

USB blaster installation problems in W7 64bit

:confused: How can I install USB blaster in Windows 7 64 bit? it just can´t install the drivers correctly, every time I connect the tool to my PC it tries to install the already installed drive...
Altera_Forum's avatar
Altera_Forum
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13 years ago

I have Windows 7 64 bit.

I installed Quartus V12.0sp2 and kept getting the error.

Error (209066): The instruction register length for the EP4CGX15BF14 device at position 1 in the JTAG chain is unknown

Error (209012): Operation failed

When trying to program.

I installed the stand alone programmer for 12.0sp2 and hey presto the problem went away.

Just like it did on the previous versions (11.x).....

Seriously guys......