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Intel® Quartus® Prime Design Software, Design Entry, Synthesis, Simulation, Verification, Timing Analysis, System Design (Platform Designer, formerly Qsys)
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Common Flash Interface (CFI) Pins

Altera_Forum
Honored Contributor II
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Dear community, 

 

I want to connect an external 16-bit flash to my Cyclone V GX. 

It would be very desirable to be able to program the flash directly with the Quartus II programmer. 

As far as I understood this will be the case if the common flash interface supports the flash. 

Can I use any pins of the Cyclone V to connect the flash, or are specific pins reserved for use with the common flash interface? 

 

Many thanks. 

 

Cheers, 

Adam
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Altera_Forum
Honored Contributor II
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Your understanding is essentially correct. For a little further reading I'll point you at application note: an-458-2.2 (http://www.altera.com/literature/an/an458.pdf) which discusses all manner of using FLASH and more. Have a look at the "implementing the advanced boot copier example" section from page 12, which talks you through lots of options and guides you through programming. 

 

As for pin selection - you're pretty free to choose what you like, subject to ensuring you connect to (one or more) FPGA I/O banks operating at an appropriate voltage for your chosen FLASH device. My only recommendation is, having chosen a pin out, you run it through Quartus as a sanity check. I'd recommend this regardless of what you're connecting up to an FPGA. Always put a basic design together and run it through the tools. 

 

Cheers, 

Alex
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Altera_Forum
Honored Contributor II
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--- Quote Start ---  

Your understanding is essentially correct. For a little further reading I'll point you at application note: an-458-2.2 (http://www.altera.com/literature/an/an458.pdf) which discusses all manner of using FLASH and more. Have a look at the "implementing the advanced boot copier example" section from page 12, which talks you through lots of options and guides you through programming. 

 

As for pin selection - you're pretty free to choose what you like, subject to ensuring you connect to (one or more) FPGA I/O banks operating at an appropriate voltage for your chosen FLASH device. My only recommendation is, having chosen a pin out, you run it through Quartus as a sanity check. I'd recommend this regardless of what you're connecting up to an FPGA. Always put a basic design together and run it through the tools. 

 

Cheers, 

Alex 

--- Quote End ---  

 

 

Hi Alex, 

 

Thanks a lot! 

 

Cheers, 

Adam
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