Max 10 unused VREF's

[Altera_Forum]

In the Pin Connection Guidelines sheet for the Max 10 they specify to connect unused VREF pins as defined in QUARTUS II software. I assume that they are referring to the Pin Assignment Tool. Could someone please elaborate on this. Thanks in advance.

[Altera_Forum]

The Pin Connection Guidelines are actually referring to the automatically generated .pin file. It will give you information like: 

 Pin Name/Usage : Location : Dir. : I/O Standard : Voltage : I/O Bank : User Assignment ------------------------------------------------------------------------------------------------------------- RESERVED_INPUT_WITH_WEAK_PULLUP : A2 : : : : 8A :  RESERVED_INPUT_WITH_WEAK_PULLUP : A3 : : : : 8A :  RESERVED_INPUT_WITH_WEAK_PULLUP : A4 : : : : 8A :  RESERVED_INPUT_WITH_WEAK_PULLUP : A5 : : : : 8A :  RESERVED_INPUT_WITH_WEAK_PULLUP : A6 : : : : 8A :  VCCIO8A : A7 : power : : 1.8V : 8A :  RESERVED_INPUT_WITH_WEAK_PULLUP : A8 : : : : 8A :  RESERVED_INPUT_WITH_WEAK_PULLUP : A9 : : : : 8A :  RESERVED_INPUT_WITH_WEAK_PULLUP : A10 : : : : 8A :  RESERVED_INPUT_WITH_WEAK_PULLUP : A11 : : : : 8A :  GND : A12 : gnd : : : :

[Altera_Forum]

Hi, 

 You can actually set the unused pins as "Input tri-stated with weak pull-up" from Quartus II setting Goto "Device and Pin Options" -->Unused Pins --> Reserved all unused pins: As input tri-stated with weak pull-up" Here is the link from Altera can be your reference: https://www.altera.com/support/support-resources/knowledge-base/solutions/rd10192006_240.html

[Altera_Forum]

I believe it would great if you could first refer to the .pin file on the connection for the unused Vref pin.

[Altera_Forum]

Hi CATastrophe, 

 When and where is this file generated? Thanks

[Altera_Forum]

Hi mattschwende, 

 The .pin file will be generated after completion of the Fitter compilation.

[Altera_Forum]

Ok thanks got it