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Altera_Forum
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8 years ago

Passive serial config causing trouble with dual mode pins?

I have a Cyclone-10 LP which I am configuring with passive serial. Config works fine...chip goes to user mode, lights blink, code runs...except the Serial Flash Controller II core (version 17.1). All...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
8 years ago

Custom board.

The flash isn't the issue. It programs the part fine using a JIC image from Quartus Programmer, and configures fine on power up. It also configures fine using JTAG, and enables the SFC following config.

Following any PS config, the dual mode pins do not switch into their designated user mode role. I removed the SFC and replaced with a naked SPI interface. Same problem. All pins stuck high.