MATLAB SIMULINK HDL CODER - RELEASE NOTES User's Guide download pdf (Page 43)

System Generator for DSP Getting Started Guide www.xilinx.com 43

UG639 (v 14.3) October 16, 2012

Lesson 3 - System Control

Controlling a DSP System

When you develop a DSP system in hardware, some level of control is usually required. This may include state

dependent behavior or simply performing operations such as filter coefficient updating. System-level control may

also be needed for controlling bursty data such as non-streaming FFTs.

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Generator for 1
Table of Contents 3
Introduction 7
The Xilinx DSP Block Set 8
FIR Filter Generation 9
Support for MATLAB 10
System Resource Estimation 11
Hardware Co-Simulation 12
System Integration Platform 13
Chapter 1: Introduction 14
Installation 15
Windows Installations 16
Post Installation Tasks 17
ModelSim SE 19
Setting the Size 19
Setting the Number of Entries 20
Release Information 21
Getting Started 23
® Simulator 24
The Xilinx DSP Blockset 25
Defining the FPGA Boundary 26
Creating the DSP Design 28
Generating the HDL Code 29
Chapter 4: Getting Started 30
DSP blockset 30
Lesson 1 Summary 32
Lab Exercise: Using Simulink 32
Fixed-Point Numeric Precision 33
Overflow and Round Modes 35
Bit-Level Operations 36
The Reinterpret Block 37
The Convert Block 38
The Concat Block 39
Slice Block 40
The BitBasher Block 41
Lesson 2 Summary 42
Lab Exercise: Signal Routing 42
Lesson 3 - System Control 43
The MCode Block 44
State Machine Example 46
The Expression Block 47
Reset and Enable Ports 48
Bursty Data 49
Lesson 3 Summary 50
Lab Exercise: System Control 50
Lesson 4 - Multi-Rate Systems 51
Up and Down Sampling Blocks 52
Debugging Tools 55
Sample Period “Rules” 56
Lesson 5 - Using Memories 58
Initializing RAMs and ROMs 59
System Generator RAM Blocks 60
System Generator ROM Blocks 61
The Delay Block 62
The FIFO Block 63
Shared Memory Block 64
Lab Exercise: Using Memories 65
Lesson 6 - Designing Filters 66
The Virtex DSP48 Math Slice 67
FIR Compiler Block 68
Using FDA Tool Coefficients 70
Virtex®-5 architecture 71
AXI4 Conversion Examples 72
Black Box Examples 72
ChipScope Examples 73
DSP Examples 73
M-Code Examples 74
Processor Examples 75
Shared Memory Examples 75
Miscellaneous Examples 76
System Generator Demos 77

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