Digital Signal Processing Reference
In-Depth Information
1.7 Downloading Your Design to the UP3 Board
Hooking Up the UP3 Board to the Computer
If you have a UP2 board skip ahead to Section 1.8. To try your design on a
UP3 board, plug the Byteblaster™ II cable into the UP3 board's JTAG
connector (innermost of the two connectors on the left side of the board) and
attach the other end to the parallel port on the PC (USB port if you are using a
USB Blaster). If you have not done so already, make sure that the PC's BIOS
settting for the printer port is ECP or EPP mode. Using the 6V AC to DC wall
transformer attach power to the DC power connector (DC_IN) located on the
lower right side of the UP3 board. Press in the power switch located on the
right edge of the board above the power connector. When properly powered,
two LEDs on the bottom of the UP3 board near the power connector should
light up. A USB ByteBlaster can also be used, if one is available.
Preparing for Downloading
After checking to make sure that the cables are hooked up properly, you are
ready to download the compiled circuit to the UP3 board. Select
Tools
Programmer
. Click on
Hardware Setup
, select the proper hardware,
a
ByteBlasterII
on
LPT1
. (If a window comes up that displays,
No Hardware
to the right of the Hardware Setup button, use the Hardware Setup button to
change currently selected hardware from
No Hardware
to
ByteblasterII
. If a
red JTAG error message appears or the start button is not working, close down
the Programmer window and reopen it. If this still doesn't correct the problem,
then there is something else wrong with the setup or cable connection. Go back
to the beginning of this section and check each step and connection carefully.)
The new USB ByteBlaster can also be used.
Final Steps to Download
The filename orgate.sof should be displayed in the programmer window. The
*.sof file contains the FPGA's configuration (programming) data for your
design. To the right of the filename in the Program/Configure column, check
the
Program/Configure
box. To start downloading your design to the board,
click on the
Start
button. Just a few seconds are required to download. If
download is successful, a green info message displays in the system window
notifying you the programming was successful.
Testing Your Design
The locations of PB1, PB2, and the decimal LED are indicated in Figure 1.17.
After downloading your program to the UP3 board, the LED in the lower left
corner should turn off whenever a pushbutton is hit. Since the output of the OR
gate is driving the LED signal, it should be on when no pushbuttons are hit.
Since the buttons are active low, and the
BNOR2
gate also has active low
inputs and output, hitting either button should turn off the LED.
