Problem with clock generator (wizard)

achttausendmark · ‎03-12-2012

Hi,

I'm facing an error, which I can't solve at all.

I'm using XPS 12.3 with MicroBlaze Processor and one user core (ff_0), which I want to run with a different frequency than the system. I tried the clock wizard and everything worked well until now:

Suddenly I am getting the following error message:

"Please make sure the core specific logic for the following components is in sync with the system clocking: proc_sys_reset_0, ff_0"

ff_0 is my IP and I'm using a specific clock for it, which I wanted to change.

The other clocks are called: microblaze_0 for the processor,

slowest_sync_clk for proc_sys_reset_0,

and my_clk for ff_0.

This error occurs even with 100MHz for MicroBlaze, proc_sys_reset_0 and ff_0.

If ff_0 is deleted, this error still occurs, with proc_sys_reset_0.

Can anyone give me a hint, what went wrong? Why aren't these components in sync with the system clocking? Where do I have to search for the solution?

Thank you very much in advance!

LG, achttausendmark

achttausendmark · ‎03-12-2012

When I try to generate the Bitstream, I get the following error in the console:

ERROR:ConstraintSystem:59 - Constraint <Net fpga_0_clk_1_sys_clk_pin TNM_NET =
   sys_clk_pin;> [system.ucf(5)]: NET "fpga_0_clk_1_sys_clk_pin" not found.
   Please verify that:
   1. The specified design element actually exists in the original design.
   2. The specified object is spelled correctly in the constraint source file.

ERROR:ConstraintSystem:59 - Constraint <Net fpga_0_clk_1_sys_clk_pin LOC = AH15
   |> [system.ucf(7)]: NET "fpga_0_clk_1_sys_clk_pin" not found. Please verify
   that:
   1. The specified design element actually exists in the original design.
   2. The specified object is spelled correctly in the constraint source file.

ERROR:ConstraintSystem:59 - Constraint <IOSTANDARD=LVCMOS33;> [system.ucf(7)]:
   NET "fpga_0_clk_1_sys_clk_pin" not found. Please verify that:
   1. The specified design element actually exists in the original design.
   2. The specified object is spelled correctly in the constraint source file.
ERROR:Xflow - Program ngdbuild returned error code 2. Aborting flow execution...

I never got that error before...

Can anyone help?