User guide

System Generator for DSP User Guide www.xilinx.com 231
UG640 (v 12.2) July 23, 2010
Hardware Co-Simulation Clocking
Hardware Co-Simulation Clocking
Selecting the Target Clock Frequency
If you are using a Xilinx ML402 or ML506 board, System Generator allows you to choose a
clock frequency for the target design that is equal to or less than the system clock
frequency. The following table outlines the frequencies that are available:
As shown below, you set the target clock frequency at compilation time, by clicking the
Settings button on the System Generator block dialog box, then select the frequency in the
pulldown menu.
Board Interface
System Clock
Frequency
Available
Frequencies
Xilinx ML402 JTAG,
Point-to-point Ethernet,
Network-based Ethernet
100 MHz 100 MHz
66.7 MHz
50 MHz
33.3 MHz
Xilinx ML506 Point-to-point Ethernet,
Network-based Ethernet
200 MHz 100 MHz
66.7 MHz
50 MHz
33.3 MHz
2. Select
1. Click