09-10-2015 06:48 PM
Hi!
I am working on creating a block design in Vivado IDE (v2015.1). After the design is completed, I load that onto the ZC706 (Zynq 7000 Processor) board.
Can someone please let me know about how to use the port('Clk') as a clock source for my design, and also how to define it in the .xdc file (design constraints file).
Thanks,
Vinay
09-11-2015 11:26 PM
@vinaygattu Do this
Use utility buffer to convert diff clk to single ended then apply clk to counter ip.
clk_p
clk_n --> IBUFDS --> CLK--> counter
This should work
09-10-2015 08:52 PM - edited 09-10-2015 08:53 PM
you can find some example here
http://www.xilinx.com/support/documentation/university/Vivado-Teaching/Digital-Design/2014x/docs-pdf/xup_building_basic_elements_lab.pdf
http://www.xilinx.com/support/university/vivado/vivado-teaching-material/digital-design.html
09-11-2015 03:37 AM
@vinaygattu Just apply clock,IOstandard and package pin constraint on clock port in XDC.
Something like this and pin constraint
create_clock -period 5.000 -name sysclk -waveform {0.000 2.500} [get_ports clk]
09-11-2015 07:08 PM
Hi @pratham,
There is a system clock source at 200MHz. The signal pair is named SYSCLK_P and SYSCLK_N and each signal is connected to U1 (pins H9 and G9, respectively) on the XC7Z045 AP SoC.
I used these commands in the .xdc file.
set_property PACKAGE_PIN G9 [get_ports Clk]
set_property IOSTANDARD LVDS [get_ports Clk]
I am still not getting the clock output fro that port.
Is it possible to define our own clock without using any pin on the ZC706 board?
Thanks,
Vinay
09-11-2015 11:26 PM
@vinaygattu Do this
Use utility buffer to convert diff clk to single ended then apply clk to counter ip.
clk_p
clk_n --> IBUFDS --> CLK--> counter
This should work
09-13-2015 09:34 PM
01-01-2017 11:46 PM
01-02-2017 12:13 PM
verma.rahul58@ymail.com please don't restart old closed threads. Start a new thread with more detailed information on your problem.
One quick comment is that you will not be able to observe a clock toggling with an LED. Any clock will be too fast to observe and it will just look like a constant amplitude at some fixed brightness, not a toggle.
11-25-2018 03:08 AM
11-25-2018 03:11 AM