Clock

[vimalab]

Good afternoon all

Can any one please tell me how to take care of 2 different clock frequency between two device?

Thank you in advance

Regards

Vimala

[yashp]

Hi Vimala,

The question you have asked has very limited information. Could you elaborate your query?

Thanks,
Yash

[vijayak]

Hi,
If you are looking for details on handling clock domain crossing, here is some useful information.
http://www.asic-world.com/tidbits/clock_domain.html

http://www.gstitt.ece.ufl.edu/courses/spring12/eel4712/lectures/metastability/EEIOL_2007DEC24_EDA_TA_01.pdf

[vimalab]

In my project am using ftdi chip and fpga spartan 3an. The clock frequency of ftdi chip was 6M hz and for fpga is 50M hz.

So, how to take care of these two clocks?

Thank you in advance

Regards

Vimala

[umamahe]

----In my project am using ftdi chip and fpga spartan 3an. The clock frequency of ftdi chip was 6M hz and for fpga is 50M hz.

There are some example reference about FTDI FT2232HQ USB-UART bridge in the below links. Please check theck if they are useful for you?

http://www.xilinx.com/support/documentation/university/XUP%20Boards/XUPBasys3/documentation/Basys3_rm_8_22_2014.pdf 

http://www.xilinx.com/support/documentation/university/XUP%20Boards/XUPNexys4/documenatation/Nexys4_RM_VB1_Final_3.pdf