2.5. Installing the USB-Blaster Driver
Installation instructions for the on-board USB-Blaster II driver for your operating system are available on the Altera website. On the Altera Programming Cable Driver Information page of the Altera website, locate the table entry for your configuration and click the link to access the instructions.
The on-board USB Blaster II circuit defaults to 24M and can be unstable depending on the bus loading or HSMC cards installed. It is recommended to change the speed down to 16M for better stability.
From a Nios® II Command Shell, type the following
jtagconfig --getparam <cable> Jtagclock
jtagconfig --setparam <cable> JtagClock 16M
- 24 MHz
- 16 MHz
- 6 MHz
- 24/n MHz (between 10 KHz and 6 MHz, where n represents an integer value.)