Honored ContributorI've FPGA board CycloneIII 3C25. I want to explore and build nios2 based system, but i faced a problem - cannot download any elf. file to my nios system "Connected system ID hash not found on target at expected base address."
May the problem cause that freq in my system is 12 MHz only?
Honored ContributorThe Nios II processor itself has no minimum frequency. However peripherals connected to the processor may have a minimum frequency.
One common example is the JTAG interface. If I recall correctly, you need to run your processor at a minimum of 20 MHz for the JTAG interface to function correctly.Honored ContributorThank you for your answer, kevin.
I've resoldered my board and now fpga external freq is 50 MHz, but nothing has changed. I have a fault - eclipse couldn't recognize processor id and timestamp this elements are always not found, so i can't download any elf file into the Cyclone III. I use Qii 10.1sp1 web edition and the same edition of NIOSII SBT. I download sof, and my board is always connected to host pc but no processor id or timestamp found. what might cause the problem?Honored ContributorDo you have a System ID component in your SOPC builder system? If not, you need to disable the System ID checks.
Is the reset signal correctly connected to your SOPC system? Is the reset signal stuck in the reset state?Honored ContributorYes I have system id in sopc. In Qii 10.1 sp1 system id is always 0 by default is it correct?
Reset of the cpu is pulled up to 'vcc' ('1'). When disable system id checking, another mistakes appears(
