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3. Init_Done is not valid unless nStatus is High.
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I believe I have already mentioned to you that this is an optional output, and as such it is meaningless until near the end of configuration.
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4. A Config Done Error is probably being signaled by the second FPGA and by checking the "Disable AS/AP mode CONF_DONE pin error check" check box, the nStatus will not see this and go High at the end of the configuration cycle.
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CONF_DONE does not signal errors, nSTATUS does. CONF_DONE is held low by the first device until it configures, at which point it remains low, because the second device is not configured.
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5. Programming via JTAG will not get things going if nStatus is indicating an error
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Can JTAG be used to program both devices at power-on? If so, then the issue is likely related to the EPCS configuration file contents.
Cheers,
Dave
Honored Contributor
