Epcs16 configuration

The EPCS devices are SPI Flash. The configuration handbook describes the serial protocol, as do the data sheets for the Spansion S25FL series devices

http://www.spansion.com/products/serial-flash/pages/spansion%20fl.aspx

Cheers,

Dave

Dave,

Thanks for your reply. But I am still confused. When I try to flash the EPCS device, Quartus programmer shows an error saying the silicon ID can't be recognized. Can Quartus programmer actually load the .pof file into the epcs device?

Erick

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Thanks for your reply. But I am still confused. When I try to flash the EPCS device, Quartus programmer shows an error saying the silicon ID can't be recognized. Can Quartus programmer actually load the .pof file into the epcs device?

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Is the EPCS device on the board an Altera part or a Spansion part?

If its a Spansion part, then you need to disable the ID check - see this thread

http://www.alteraforum.com/forum/showthread.php?t=38703

Cheers,

Dave

Dave,

Is an Altera part.. I got it from Digikey PN# 544-2567-5-ND.

Thanks,

Erick

Hi Erick,

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Is an Altera part.. I got it from Digikey PN# 544-2567-5-ND.

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Ok, so its an EPCS16SI8N.

Since you purchased it, I assume it has been loaded on a custom board. Have you probed the board with an oscilloscope and checked the waveforms?

You can also talk to the flash directly, eg., create a Qsys system with a PIO component and connect the pins from the PIO to the flash.

I've used that method to test SPI and QSPI flash devices.

Cheers,

Dave