SPI flash

[Altera_Forum]

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

Thanx in advance

[Altera_Forum]

--- Quote Start ---  Does anybody know if "Nios II flash programmer" support SPI flashes compatible with EPCS devices? Thanx in advance  --- Quote End ---    Yes it does.

[Altera_Forum]

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

[Altera_Forum]

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

[Altera_Forum]

Yes it works!!! 

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