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Altera_Forum's avatar
Altera_Forum
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8 years ago

Cyclone V Configuration Devices

I've got a Terasic Cyclone V GX development board. I removed the EPCQ256 configuration device and am testing two other alternatives (Macronix MX25L257 and Cypress S25FL128). I created a simple proj...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
8 years ago

You can either believe what's claimed about possible incompatibility of third party serial flash devices or tackle the problem yourself.

Up to now, there have been compatible devices from major manufacturers. For EPCQ256, Micron N25Q256A13ESF40x was an appropriate replacement up to now. I guess that EPCQ256 is an OEM version of the Micron chip, like many other EPCS devices have been OEM versions of former ST/former Numonyx/now Micron, can be checked by manufacture ID.

N25Q256A is obsolete, you have to look for a replacement. I was able to find suitable devices for any 1Mb/4Mb/16Mb/64Mb AS flash up to now, but the 256Mb device isn't on my schedule right now.