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Sergey81's avatar
Sergey81
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4 years ago

Problems with configuring CycloneIV from EPCQ32A

After changing EPCS16 (soic 😎 to EPCQ32A on PCB Cyclone IV FPGA can't load configuration data at power ups (Active Serial x1 is used). Quartus project is recompiled, configuration device in Device a...
NurAiman_M_Intel's avatar
NurAiman_M_Intel
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4 years ago

Hi,


Apologize for the delay in response.


-As you are saying that there is not JTAG interface, I assume you are using Passive serial scheme?

-The only issue I can think is that, if you have follow the device migration guidelines correctly. As you were migrating from EPCS16 to EPCQ32A. EPCQ32A is different, hence you need to make sure that you have follow the migration guidelines correctly.

-Can you provide the screenshot of configuration timing diagram? that have CONF_DONE, nSTATUS, DCLK,ASDATA, etc...

-Have you try using the EPCQ32? Previous reply you are mentioning to try with EPCQ32. How is it working?


Regards,

Aiman


  • Sergey81's avatar
    Sergey81
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    4 years ago

    Hi, Aiman!

    We are using Active serial scheme.

    We've changed EPCQ32A to EPCQ32 and I can program it several times. FPGA configures normally after each power up. So, there is a difference between EPCQ32A and EPCQ32...