12–4
Chapter 12: Real-Time ISP and ISP Clamp for MAX II Devices
ISP Clamp
Figure 12–4 shows the Programmer options in the Options menu.
Figure 12–4. Programmer Options in the Options Menu
Real-Time ISP with Jam and JBC Players
You can use the Jam or JBC file created from the POF to program a MAX II device in
real-time ISP mode with the Jam or JBC Player.
For real-time ISP with the Jam File and Jam Player, type the following at the
command-line prompt:
jp_23 -aprogram -ddo_real_time_isp=1 <file_name.jam>
For Real-Time ISP with the JBC File and JBC Player, type the following at the
command-line prompt:
jbi_22 -aprogram -ddo_real_time_isp=1 <file_name.jbc>
The names of the executable files for the players are different, depending on the
version of the players. Download the latest version of the Jam and JBC Player from the
®
Altera web site at www.altera.com.
ISP Clamp
When a MAX II device enters normal ISP operation, all the I/O pins tri-state and are
weakly pulled up to VCCIO with internal pull-up resistors. However, there are
situations when the I/O pins of the device should not be tri-stated when the device is
in ISP operation. For instance, in a running system, some signals (e.g., output enable
or chip enable signals) might use some of the I/O pins and require those I/O pins to
assume a high or low logic level, or even maintain their current state when the device
is in ISP mode.
MAX II Device Handbook
© October 2008 Altera Corporation
ALTERA [ ALTERA CORPORATION ]
