Flash programmer fails on custom board design

Thx for your answers Pod & Havard

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Just to be shure, you could also test the programming command manually:

quartus_pgm --no_banner --mode=jtag --operation=p;MX_ATA_REV2.sof[/b]

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Ok tried the quartus_pgm. Have tried other ways to type it in also, but with same result.

$ quartus_pgm --mode=JTAG --operation=p;MX_ATA_REV2.sof
Error: Programming option string "p" is illegal. Refer to --help for legal progr
amming option formats.
Usage:
------
quartus_pgm  | -v]
quartus_pgm -c <cable name> filname.cdf  --- If you want to use cdf file
quartus_pgm -c <cable name> -m <programming mode> -o <value>  ---
 If you want to use individual programming file(s)
quartus_pgm -l --- to display the list of available hardware
quartus_pgm -c <cable name> -a --- to display the list of devices connected to t
he cable
bash: MX_ATA_REV2.sof: command not found
/cygdrive/c/altera/kits/nios2/examples/mx_ata_rev2/system/software/memtest_ECT_R
EV2/Debug
$

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- There might be a problem if your programming design runs under 50MHz, I had the problem before. To avoid this, add a PLL to increase your Nios speed.[/b]

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The system runs at 100MHz

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- The problem comes from your programming design pinout, but it seems to be a severe problem (not just a problem communicating with the flash, I think the Nios simply doesn&#39;t start). Maybe from the reset or the clock signals. Check your pin assign maybe.[/b]

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Will try and check them. Will report back on this.

And thx again for using your time & energy on helping me out.

Best regards

Michael E