Jtag chain, Jtag chain –6 – Altera Cyclone V GT FPGA User Manual
Page 28
6–6
Chapter 6: Board Test System
Using the Board Test System
Cyclone V GT FPGA Development Kit
September 2014
Altera Corporation
User Guide
■
PSS
—Displays the MAX V PSS register value. Refer to
available options.
■
SRST
—Resets the system and reloads the FPGA with a design from flash memory
based on the other MAX V register values. Refer to
for more information.
1
Because the System Info tab requires that a specific design is running in the FPGA at
a specific clock speed, writing a 0 to SRST
or changing the PSO value can cause the
Board Test System to stop running.
JTAG Chain
This control shows all the devices currently in the JTAG chain. The Cyclone V GT
device is always the first device in the chain. The JTAG chain is normally mastered by
the On-board USB-Blaster II.
1
If you plug in an external USB-Blaster cable to the JTAG header (J13), the On-Board
USB-Blaster II is disabled.
1
JTAG DIP switch bank (SW3) selects which interfaces are in the chain. Refer to
for detailed settings.
f
For details on the JTAG chain, refer to the
For USB-Blaster II configuration details, refe
page.