Forum Discussion
Hi Anandhu,
Yes, the NC config pins are very likely the cause.
For MAX 10, nCONFIG, nSTATUS, and CONF_DONE must have pull‑up resistors even when using JTAG programming. These pins are still checked by the configuration controller, and floating pins can cause programming to fail. Quartus options cannot bypass this requirement.
Typical pull‑up value is 10 kΩ to VCC.
Without adding these pull‑ups, JTAG programming is unreliable.
Regards,
Fakhrul
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