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Altera_Forum
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20 years ago

Problem Downloading in Nios IDE

I am trying to program is simple "Hello World" program into a Nios II running in a Cyclone (EP1C6T144) which is on a custom board. I'm using Quartus 5.0 and the USB byte-blaster. When I select "R...
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Altera_Forum
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20 years ago

Thank everyone for all of the suggestions. It turns out that I did have a JTAG problem as some of you pointed out. It wasn't a schematic issue but rather a problem with my layout. The solution ended up being a couple of decoupling caps right next to the JTAG header power pins. I used 1uF in parallel with 1000pF. Apparently I was getting some noise in the JTAG signals. I haven't had any problems since.

Danny