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Altera_Forum
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9 years ago

Quartus Prime not allowing apparently correct I/O assignment

Hi, I'm using Quartus Prime 15.1 and trying to program the DECA evaluation board. I've used a file provided by them to do the pin assignments. I am completely sure that I have used the correct one. W...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
9 years ago

Hi all,

I have encountered the same error today. I should start out by saying that Arrow's Tcl script works as intended, there is an additional important step in the tutorial I was following.

For your config file to match the hardware of the DECA board you have to change a few more options.

Go To: Assignments -> Device -> Device and Pin Options -> General

There UNTICK "Enable nCONFIG, NSTATUS, and CONF_DONE pins"

This will allow you to set the bank 8 I/Os to 1,2V.

For the DECA board you should also UNTICK the rest of the config options int the same window:

Auto-restart configuration after error

Release clears before tri-states

Enable device-wide reset (DEV_CLRn)

Enable device-wide output enable (DEV_OE)

Enable nCONFIG, nSTATUS, and CONF_DONE pins

Enable JTAG pin sharing

Enable CONFIG_SEL pin

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