Stratix II cannot config with JTAG or AS

Honored Contributor

7 years ago

Thank you for reply,

I had tried to load .sof file via JTAG, but failed. Quartus showed the loading process stop at 89%, config_done can't go high.

I also download the latest version of the Quartus II and regenerate the programming file. Also failed.

and here is the nStatus signal in JTAG mode.

The blue is nStatus signal, and the yellow is nConfig signal.

nStatus goes low every 2.4ms

this pic show nStatus signal and nCSO signal in AS mode.

The blue is nStatus signal, and the yellow is nCSO signal.

I'm sure the bitstream is ok because it work well in the old batch No EP2S60F484.

I also measure the ripple voltage and it is in the normal range.

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