Type: Answers

Area: Component


Last Modified: July 19, 2015
Version Found: v11.1
Bug ID: xxxx

How do I change the clock frequency of the USB-Blaster II download cable?

Description

The USB-Blaster™ II download cable has a default clock frequency for TCK (JTAG) or DCLK (Active Serial programming) of 24MHz.  The frequency may be changed to lower frequencies where signal integrity and timing does not allow operation at 24MHz.