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Altera_Forum
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17 years ago

USB Blaster Rev. B compatibly with Cyclone III Starter Board???

I am working with the Nios II Emb. Eval. Kit Cyclone III Edition and I am trying to configure the FPGA by USB Blaster Rev. B (taken from an Cyclone II Dev. Kit). But the connection is very unstable. ...
Altera_Forum's avatar
Altera_Forum
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17 years ago

So they mean that there also has to be a USB connection between the PC and the onboard circuitry? But why, if the LLT is disabled by JP8, there will be no leveling of the USB signal..? Anyway I will try it later on, at the moment I am willing to test every single hint :)

But what about the R14 again? What would it change if I switch it? The Altera support suggested to solder a 37pF capacitor to pin 1 of the JTAG connector of the board but I don't see what this should help...any suggestions?