SPI flash

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Does anybody know if "Nios II flash programmer" support SPI flashes compatible with EPCS devices?

Thanx in advance

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Yes it does.

Thanx anakha for your quick reply!

I have some problem with my SPI flash; I'm using an Spansion S25FL204K0TMFI04, it works in active serial mode and my FPGA loads correctly from it, but when I try to program it with the "NIOS II flash programmer" I receive the following messages:

Using cable "USB-Blaster [USB-0]", device 1, instance 0x00

Resetting and pausing target processor: OK

Processor data bus width is 32 bits

Looking for EPCS registers at address 0x00011000 (with 32bit alignment)

Initial values: 0001703A 04C00074 9801483A 9CFFF804 983FFD1E 0000203A

Not here: reserved fields are non-zero

Looking for EPCS registers at address 0x00011100 (with 32bit alignment)

Initial values: 92400237 4A40100C 483FFD26 90000135 92400237 4A40200C

Not here: reserved fields are non-zero

Looking for EPCS registers at address 0x00011200 (with 32bit alignment)

Initial values: 108001C4 1004D0FA 002EE03A 003F9C06 002EE03A 003F9506

Not here: reserved fields are non-zero

Looking for EPCS registers at address 0x00011300 (with 32bit alignment)

Initial values: 00000000 00000000 00000000 00000000 00000000 00000000

Not here: SPI_SLAVE_SEL has 0 valid bits (should be between 1 and 16)

Looking for EPCS registers at address 0x00011400 (with 32bit alignment)

Initial values: 00000000 00000000 00000260 00000000 00000000 00000001

Valid registers found

EPCS signature is 0x12

EPCS identifier is 0x014013

No EPCS layout data - looking for section [EPCS-014013]

Unable to use EPCS device

Leaving target processor paused

Do you have any ideas?

Thanx in advance

By default the nios FLASH programmer doesn't recognise all serial FLASH parts.

You need to create a "nios2-flash-override.txt" file in your ../nios2eds/bin installation directory. By identifying the size and number of sectors a device has this file tells the programmer how to handle serial FLASH parts whose device ID it doesn't recognise.

In your new "nios2-flash-override.txt" file paste the following:

sector_size = 65536
sector_count = 8

The FLASH programmer will now know how to handle your Spansion part.

Regards,

Alex

Yes it works!!!

thank u a_x_h_75, u r great!! :))