MAX-V scalability

[Altera_Forum]

Hi, 

 I am going to use MAX-V type 5M570ZF256 on my new board and I would like to upgrade in future to 5M1270ZF256. But I found that each of these two versions has a single GND pin which is not compatible to each other: The 5M1270ZF256 uses G5 which is NC in 5M570ZF256, and 5M570ZF256 uses B7 which is defined as IO in 5M1270ZF256. What should I do to preserve smooth scalability?  Thanks,

[Altera_Forum]

Quartus allows you to build device migration into a project. Under 'Assignments' -> 'Device', click on the 'Migration Devices' button bottom left. Select all the devices you wish to support. Quartus will then generate a device pin file suitable for use with any of your chosen devices. 

 Cheers, Alex

[Altera_Forum]

--- Quote Start ---  Quartus allows you to build device migration into a project. Under 'Assignments' -> 'Device', click on the 'Migration Devices' button bottom left. Select all the devices you wish to support. Quartus will then generate a device pin file suitable for use with any of your chosen devices.  Cheers, Alex  --- Quote End ---    ----------------------  Thank you Alex,  I did your recommendation, but while I clicked OK i didn't see any new generated migration file. Maybe i don't know where it should be located?   Shony

[Altera_Forum]

It doesn't generate a 'migration' file. It simply ensures that any pinout Quartus generates is compatible for all devices in the migration list. 

 You must still select a single device for Quartus to target. This will generate programming files for that device only. You can then change the Quartus project to target a different device, from your list of migration devices, and Quartus will route it with the same pin constraints determined by the project.  Cheers, Alex

[Altera_Forum]

I hope that Quartus warns me if it doesn't like, for instance, case that I connected some previous GND pin to current NC pin (if it is not legal), etc.

[Altera_Forum]

If Quartus can't meet the pin assignments you've created for the project, for any device in your migration list, the Fitter will fail with an error. 

 Cheers, Alex