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Altera_Forum
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16 years ago

Cyclone II EP2C35 - SOF downloaded but doesn't run

Hi, I am using Quartus II 8.0 with the nios ii development kit, cyclone ii edition (http://www.altera.com/products/devkits/altera/kit-nios-2c35.html). I created a very simple hardware design l...
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Altera_Forum
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16 years ago

Hi Stefan,

I understand that you are downloading just a Quartus program, without NIOS. When you reset your Kit (with reset button or power off) the EPCS download the configuration that it has saved in memory to the FPGA, and you lost your old configuration (The FPGA is "volatyle", the Hardware configuration is lost when you switch off). You have tried to download and test it without reset or power off? it must work, just to check it.

I'm not sure how to fix a quartus program to a EPCS IC without NIOS, I suppose that you will need to use the SOPC Builder to create a EPCS connection and flash it.

I have the same Kit, I will try to check and help you.

Regards.

Isaac Campos