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1–8 Chapter 1: About the FIR Compiler
Installation and Licensing
FIR Compiler User Guide © May 2011 Altera Corporation
Installation and Licensing
The FIR Compiler MegaCore function is part of the MegaCore
®
IP Library, which is
distributed with the Quartus
®
II software and downloadable from the Altera
®
website,
www.altera.com.
f For system requirements and installation instructions, refer to the Altera Software
Installation and Licensing manual.
Figure 1–4 shows the directory structure after you install the FIR Compiler, where
<path> is the installation directory for the Quartus II software. The default installation
directory on Windows is c:\altera\<version> and on Linux is /opt/altera<version>.
OpenCore Plus Evaluation
With Altera’s free OpenCore Plus evaluation feature, you can perform the following
actions:
■ Simulate the behavior of a megafunction (Altera MegaCore function or AMPP
SM
megafunction) within your system.
■ Verify the functionality of your design, as well as evaluate its size and speed
quickly and easily.
■ Generate time-limited device programming files for designs that include
megafunctions.
■ Program a device and verify your design in hardware.
You only need to purchase a license for the FIR Compiler when you are completely
satisfied with its functionality and performance, and want to take your design to
production.
After you purchase a license, you can request a license file from the Altera website at
www.altera.com/licensing and install it on your computer. When you request a
license file, Altera emails you a license.dat file. If you do not have Internet access,
contact your local Altera representative.
Figure 1–4. Directory Structure
misc
Contains the coef_seq program which calculates and re-orders coefficients for reloading.
lib
Contains encrypted lower-level design files.
ip
Contains the Altera MegaCore IP Library and third-party IP cores.
<path>
Installation directory.
altera
Contains the Altera MegaCore IP Library.
common
Contains shared components.
fir_compiler
Contains the FIR Compiler MegaCore function files.
- FIR Compiler 1
- User Guide 1
- UG-FIRCOMPILER 11.0 2
- Contents 3
- Additional Information 4
- 1. About the FIR Compiler 5
- Delay Line 6
- Coefficient 6
- Multipliers 6
- Adder Tree 6
- Features 7
- Release Information 8
- Device Family Support 9
- MegaCore Verification 10
- Notes to Table 1–5: 11
- Notes to Table 1–6: 11
- Installation and Licensing 12
- 2. Getting Started 15
- Figure 2–4. Set Up Simulation 18
- Notes to Table 2–1 21
- Simulate the Design 22
- Simulating in MATLAB 23
- 3. Parameter Settings 25
- Specifying the Coefficients 26
- Note to Figure 3–6: 31
- Analyzing the Coefficients 32
- Bits Removed from MSB 34
- Bits Removed from LSB 34
- Note to Table 3–4: 36
- Note to Table 3–5: 37
- Note to Table 3–6: 38
- Resource Estimates 40
- Filter Design Tips 40
- 4. Functional Description 43
- Coefficient Scaling 44
- Symmetrical Serial 45
- Structure Types 48
- Serial Structures 49
- Multibit Serial Structure 49
- Interpolation and Decimation 50
- Figure 4–8. Signal Decimation 51
- Pipelining 54
- Simulation Output 55
- Avalon Streaming Interface 55
- Data Source Data Sink 56
- Packet Data Transfers 57
- ■ 00: No error 58
- ■ 01: Missing SOP 58
- ■ 10: Missing EOP 58
- ■ 11: Unexpected EOP 58
- Timing Diagrams 59
- Referenced Documents 68
- Structures 69
- Supported Device Structures 70
- Compiling HardCopy Designs 71
- How to Contact Altera 74
- Typographic Conventions 74
- Additional Information Info–3 75
- Info–4 Additional Information 76
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