AT-1120 User Guide and Specifications - 31 -
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Creating a Custom FPGA Target
This section explains how to create your custom target and setup an host VI for waveform generation.
PLEASE NOTE THE FOLLOWING:
The custom FPGA Target of this tutorial reads a sine waveform data from the Memory1
lookup table (2048 samples) and send the same data to the OSerdes.
The data rate for the DAC has not been respected to simplify the code implementation (the
same data have been sent to all the serdes), so the sine output rate will be divided by 8.
Note
: the following tutorial can be found under the directory
\AT_HS_SignalGenerator\FPGA_Tutorial_1120.vi
and
\AT_HS_SignalGenerator\CustomFPGAExample1120(Host).vi.
1.
In the Project Explorer window, right-click My Computer and select
New»Targets and
Devices
.
2.
In the
Add Targets and Devices on My Computer
dialog box, select the
Existing Target
or
Device option button and expand FPGA Target. The target is displayed.
3.
Select your device and click OK. The target and target properties are loaded into the Project
Explorer window.
4.
Right-click
FPGA Target()
in the Project Explorer window and select
New>>FPGA-Base Clock
.
Select the
IO Module Clock 0 resource
, Compile for single frequency and set the frequency
at
125 MHZ
. Click
OK
.
5.
Right-click
FPGA Target()
in the Project Explorer window and select
New>>FPGA-Base Clock
.
Select the
DStarA Clock
, Compile for single frequency and set the frequency at
125 MHZ
.
Warning :
on the NI PXIe-7966R the DSTAR Clock frequency should be set at
124.98MHz
.
Click
OK
.
6.
Click on the “+” button to add the Component
-Level IP File Path: browse the
AT_1120_IOModule_CLIP.xml
file in the \XML_VHDL folder. Click
OK
to confirm and exit
from the
FPGA Target Properties
panel.
7.
Right-click
IO Module
in the
Project Explorer
window and select
Properties
.
8.
Select the
Active Technologies: AT-1120
from the IO Module list. The available CLIP items
for the AT-1120 are displayed in the
General
category of the Component Level IP panel. If
Содержание AT-1120
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