Nios II Problem!

Altera_Forum · ‎01-19-2010

Hi Sir/Madam,

Actually I am finding one problem in my design that after fusing the .sof files when I run software the processor get paused.

This problem comes most of the time when I enable the signal tap. When the signal tap is disabled the software runs properly. what comes in console window of Nios II is as given below.

I will be thankful for your kind sugestion.

Have a nice day!

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

Processor is already paused

Reading System ID at address 0x00C10C60: verified

Initializing CPU cache (if present)

OK

Downloading 00800020 ( 0%)

Downloaded 63KB in 0.7s (90.0KB/s)

Verifying 00800020 ( 0%)

Verify failed between address 0x800020 and 0x80F89F

Leaving target processor paused.

Regards:

SB Yadav

Altera_Forum · ‎01-19-2010

mostly if all elecric connections ar correct, this is a timing issue

is your memory at 0x80xxxx an external memory (i assume yes due to the memory size)

do you use sdram ? if yes, have you cecked that the phase shift of the sdramclock is correct ?

have you checked your timing ? do you get timing warnings ?