Connectivity

[golson]

Hi,

  On my TEMAC using Microblaze embedded system.  I have a Clock Generator creating a 125 MHz clock that connects

to the xps_ll_temac gtx_clk input.  Now If I take a 125 mhz external oscillator clock into the Microblaze system and hook

it to eht GTX_CLK input of the TEMAC and I then open the Clock wizard within the EDK Environment.  The new

connection I created will be removed by the Clock Wizard and will replace the connection back to the original

clock 125 mhz signal generated by the clock generator.

Is there a way to get the Clock Wizard to accept the external 125 MHz clock.

Thank You,

  Gary

[golson · Accepted solution]

I found out that I could add a second clock generator even though the clock wizard will not work for two clock generators.

One of my clock generators runs on a 100 MHz clock to generate 125 MHz and 200 MHz.  The other clock generator

is using 33 MHz (on a ML 510 board to generate for the DDR2 and the PLB clock 99 MHz and double rate clocks(198 0 degree and 90 degree) for DDR2.