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Altera_Forum
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14 years ago

cyclone IV configuration: VCCIO8 connection

I’m currently using an EP4CE6F17I8LN on a PCB in an AS configuration mode (EPCS4 PROM) and I’m experiencing some issues with its configuration (device stays in POR with nSTATUS low). In my circuit im...
Altera_Forum's avatar
Altera_Forum
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14 years ago

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My question is: VCCIO connects to pins A1, C4 and C7. Can I get away (at least for prototyping purposes) with soldering a wire on pin A1 (easy access on the PCB) and leave C4 and C7 floating?

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I would expect that all VCCIO8 bond wires connect to the same power rail, and the reason for multiple pins is current handing and inductance reduction. Given the same problem as you, I would just try it.

I mean hey, you can't make things worse right? As it stands, the device will not power on, ever.

Cheers,

Dave