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mstef1's avatar
mstef1
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7 years ago

HI, I have a board with a cyclon iv and EPCS64 but te fpga does not strt the programming cycle. I attached the schematic page and the test program I am using. please any help will be appreciated maurizio stefani

HI, I have a board with a cyclon iv fpga. I am using the AS programming mode using a EPCS64. I programmed the EPCS64 but the FPGA is not programmed. I noted: - nCONFIG signal goes low but the nSt...
mstef1's avatar
mstef1
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7 years ago

hI,

Thank you for your answer,

the 1.2 and 2.5V voltages are rise fastly, the vccio (3.3v) is rising within 2mS.

where I can check the POR timing in quartus?

I am not working with JTAG (because I have the AS programmer only, byte bluster II), then the config time will depend by EPCS64 (this is what I understood).

have you any other suggestions?

thank you

maurizio