User guide

System Generator for DSP User Guide www.xilinx.com 141
UG640 (v 12.2) July 23, 2010
Using ChipScope Pro Analyzer for Real-Time Hardware Debugging
Benefits
One of the main benefits for this feature is the ability capture and examine the System
Generator data in real time. The data can be captured directly from external IO pins via
non-memory-mapped IO such as Analog to Digital without having to capture the data
onto Shared Memory of FIFO and then read it onto Simulink. In this particular example,
ChipScope captures data at real time rates when using Free Running, HW Co-simulation
mode.
How to Iterate a Design between System Generator for DSP and ChipScope
Pro Analyzer
In Simulink
Press play on the Simulink model to start hardware co-simulation to download the
bitstream
In ChipScope Pro Analyzer
1. Start the ChipScope Pro Analyzer from the Windows Start menu
2. From the pulldown menu: File > Open Project... and select
chipscope_ex2_chipscope.cpj
3. From the pulldown menu: JTAG Chain > Xilinx Platform USB Cable... then press OK
4. From the toolbar: Press the Trigger Now button (i.e. T! button)
Note:
You should be able to observe the following output waveform from the Bus Plot
In Simulink
1. Press Play and change the Slider Gain setting to change the frequency of the DDS
2. Press Pause in Simulink
In ChipScope Pro Analyzer
1. Press the Trig ger N ow button again to capture the new Sine and Cosine waves that are
running at a different frequency