National Instruments NI SPEEDY-33 User Manual

NI SPEEDY-33

User Manual

Signal Processing Engineering Educational Device for Youth

NI SPEEDY-33 User Manual

June 2008
371577D-01

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Important Information

Warranty

The NI SPEEDY-33 is warranted against defects in materials and workmanship for a period of one year from the date of shipment, as evidenced
by receipts or other documentation. National Instruments will, at its option, repair or replace equipment that proves to be defective during the
warranty period. This warranty includes parts and labor.

The media on which you receive National Instruments software are warranted not to fail to execute programming instructions, due to defects in
materials and workmanship, for a period of 90 days from date of shipment, as evidenced by receipts or other documentation. National Instruments
will, at its option, repair or replace software media that do not execute programming instruc tions if National Instruments receives notice of such defects
during the warranty period. National Instruments does not warrant that the operation of the software shall be uninterrupted or error free.

A Return Material Authorization (RMA) number must be obtained from the factory and clearly marked on the outside of the package before any
equipment will be accepted for warranty work. National Instruments will pay the shipping costs of returning to the owner parts which are covered by
warranty.

National Instruments believes that the information in this document is accurate. The document has been carefully reviewed for technical accuracy. In
the event that technical or typographical errors exist, National Instruments reserves the right to make changes to subsequent editions of this document
without prior notice to holders of this edition. The reader should consult National Instruments if errors are suspected. In no event shall National
Instruments be liable for any damages arising out of or related to this document or the information contained in it.

E

XCEPT AS SPECIFIED HEREIN, NATIONAL INSTRUMENTS MAKES NO WARRANTIES, EXPRESS OR IMPLIED, AND SPECIFICALLY DISCLAIMS ANY WARRANTY OF

MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. CUSTOMER’S RIGHT TO RECOVER DAMAGES CAUSED BY FAULT OR NEGLIGENCE ON THE PART OF NATIONAL

I

NSTRUMENTS SHALL BE LIMITED TO THE AMOUNT THERETOFORE PAID BY THE CUSTOMER. NATIONAL INSTRUMENTS WILL NOT BE LIABLE FOR DAMAGES RESULTING

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National Instruments must be brought within one year after the cause of action accrues. National Instruments shall not be liable for any delay in
performance due to causes beyond its reasonable control. The warranty provided herein does not cover damages, defects, malfunctions, or service
failures caused by owner’s failure to follow the National Instruments installation, operation, or maintenance instructions; owner’s modification of the
product; owner’s abuse, misuse, or negligent acts; and power failure or surges, fire, flood, accident, actions of third parties, or other events outside
reasonable control.

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Patents

For patents covering National Instruments products, refer to the appropriate location: Help»Patents in your software, the patents.txt file
on your media, or

ni.com/patents.

WARNING REGARDING USE OF NATIONAL INSTRUMENTS PRODUCTS

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ANY LIFE SUPPORT SYSTEMS WHOSE FAILURE TO PERFORM CAN REASONABLY BE EXPECTED TO CAUSE SIGNIFICANT
INJURY TO A HUMAN.

(2) IN ANY APPLICATION, INCLUDING THE ABOVE, RELIABILITY OF OPERATION OF THE SOFTWARE PRODUCTS CAN BE
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Compliance

Compliance with FCC/Canada Radio Frequency Interference
Regulations

Determining FCC Class

The Federal Communications Commission (FCC) has rules to protect wireless communications from interference. The FCC
places digital electronics into two classes. These classes are known as Class A (for use in industrial-commercial locations only)
or Class B (for use in residential or commercial locations). All National Instruments (NI) products are FCC Class A products.

Depending on where it is operated, this Class A product could be subject to restrictions in the FCC rules. (In Canada, the
Department of Communications (DOC), of Industry Canada, regulates wireless interference in much the same way.) Digital
electronics emit weak signals during normal operation that can affect radio, television, or other wireless products.

All Class A products display a simple warning statement of one paragraph in length regarding interference and undesired
operation. The FCC rules have restrictions regarding the locations where FCC Class A products can be operated.

Consult the FCC Web site at

FCC/DOC Warnings

This equipment generates and uses radio frequency energy and, if not installed and used in strict accordance with the instructions
in this manual and the CE marking Declaration of Conformity*, may cause interference to radio and television reception.
Classification requirements are the same for the Federal Communications Commission (FCC) and the Canadian Department
of Communications (DOC).

Changes or modifications not expressly approved by NI could void the user’s authority to operate the equipment under the
FCC Rules.

Class A

Federal Communications Commission

This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of the FCC
Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated
in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and
used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this
equipment in a residential area is likely to cause harmful interference in which case the user is required to correct the interference
at their own expense.

www.fcc.gov for more information.

Canadian Department of Communications

This Class A digital apparatus meets all requirements of the Canadian Interference-Causing Equipment Regulations.
Cet appareil numérique de la classe A respecte toutes les exigences du Règlement sur le matériel brouilleur du Canada.

Compliance with EU Directives

Users in the European Union (EU) should refer to the Declaration of Conformity (DoC) for information* pertaining to the
CE marking. Refer to the Declaration of Conformity (DoC) for this product for any additional regulatory compliance
information. To obtain the DoC for this product, visit
and click the appropriate link in the Certification column.

* The CE marking Declaration of Conformity contains important supplementary information and instructions for the user or

installer.

ni.com/certification, search by model number or product line,

Conventions

The following conventions are used in this manual:

<> Angle brackets that contain numbers separated by an ellipsis represent

a range of values associated with a bit or signal name—for example,
AO <3. .0>.

» The » symbol leads you through nested menu items and dialog box options

to a final action. The sequence File»Page Setup»Options directs you to
pull down the File menu, select the Page Setup item, and select Options
from the last dialog box.

This icon denotes a note, which alerts you to important information.

This icon denotes a caution, which advises you of precautions to take to
avoid injury, data loss, or a system crash.

bold Bold text denotes items that you must select or click in the software, such

as menu items and dialog box options. Bold text also denotes parameter
names.

italic Italic text denotes variables, emphasis, a cross reference, or an introduction

to a key concept. Italic text also denotes text that is a placeholder for a word
or value that you must supply.

monospace Text in this font denotes text or characters that you should enter from the

keyboard, sections of code, programming examples, and syntax examples.
This font is also used for the proper names of disk drives, paths, directories,
programs, subprograms, subroutines, device names, functions, operations,
variables, filenames, and extensions.

Contents

Chapter 1
NI SPEEDY-33 Overview

Theory of Operation.......................................................................................................1-2

Safety Information .........................................................................................................1-2

Installation .....................................................................................................................1-4

Software, Drivers, and Examples ..................................................................................1-4

Chapter 2
NI SPEEDY-33 Functional Description and Interface

DSP ................................................................................................................................2-2

Memory Map .................................................................................................................2-4

Memory..........................................................................................................................2-5

On-Chip Memory ............................................................................................2-5

Flash Memory..................................................................................................2-5

Ports ...............................................................................................................................2-5

PC USB Port....................................................................................................2-5

Power Port .......................................................................................................2-6

Audio Stereo Input Port...................................................................................2-6

Audio Stereo Output Port ................................................................................2-6

Onboard Microphones ...................................................................................................2-7

Digital Output Port LEDs ..............................................................................................2-7

Switch Input Port ...........................................................................................................2-7

Stereo A/D, D/A (Analog Input, Analog Output)..........................................................2-8

I/O Connectors...............................................................................................................2-8

Simple Expansion Digital I/O Connector........................................................2-8

Standard Expansion Analog I/O Connectors...................................................2-9

Connecting Accessories to the NI SPEEDY-33 ...............................2-9

Jumpers ..........................................................................................................................2-10

Audio Input Level Jumpers .............................................................................2-10

Flash Boot Jumper...........................................................................................2-11

Flash Write Enable Jumper .............................................................................2-11

NI SPEEDY-33 Enclosure.............................................................................................2-12

Reset Button ....................................................................................................2-13

© National Instruments Corporation ix NI SPEEDY-33 User Manual

Contents

Appendix A
Specifications

Appendix B
Technical Support and Professional Services

Glossary

Index

NI SPEEDY-33 User Manual x ni.com

NI SPEEDY-33 Overview

The NI SPEEDY-33 (Signal Processing Engineering Educational Device
for Youth) featuring the Texas Instruments VC33 DSP is a self-contained,
high-performance, programmable product for signal processing
applications. It boasts an easy-to-use, fast Digital Signal Processor (DSP)
along with a number of features important to many signal processing
applications. The NI SPEEDY-33 onboard flash memory, together with an
easy-to-learn, easy-to-use software programming tool, supports the quick
creation of standalone DSP-based products.

1

Figure 1-1. The NI SPEEDY-33

© National Instruments Corporation 1-1 NI SPEEDY-33 User Manual

Chapter 1 NI SPEEDY-33 Overview

Theory of Operation

The NI SPEEDY-33 is a low-cost, high-performance floating-point
TMS320VC33-based DSP system connected to a standard PC through the
USB port. This easy-to-use system supports a variety of DSP processing,
including audio applications with two input/output analog channels
sampled at 48 kHz, and other applications with onboard digital I/O for
controlling motors/servos. The NI SPEEDY-33 features 34 K × 32 words
of on-chip memory. The 512 K × 8 onboard flash memory allows for
storage of both the program application (programmed with the LabVIEW
DSP Module), as well as data such as tables, sound waveforms, and so on.

The NI SPEEDY-33 has eight lines of digital I/O, arranged as an eight-bit
switch input port, and eight digital output LEDs. The digital I/O lines can
be programmed with the LabVIEW DSP Module software. The eight
inputs and eight outputs are also accessible through the simple expansion
digital I/O connector. After the flash memory is programmed, the
NI SPEEDY-33 can be unplugged from the PC and run in standalone mode.

Safety Information

The following section contains important safety information that you must
follow when installing and using the module.

Do not operate the module in a manner not specified in this document.
Misuse of the module can result in a hazard. You can compromise the safety
protection built into the module if the module is damaged in any way. If the
module is damaged, return it to National Instruments (NI) for repair.

Do not substitute parts or modify the module except as described in this
document. Use the module only with the chassis, modules, accessories, and
cables specified in the installation instructions. You must have all covers
and filler panels installed during operation of the module.

Do not operate the module in an explosive atmosphere or where there may
be flammable gases or fumes. If you must operate the module in such an
environment, it must be in a suitably rated enclosure.

If you need to clean the module, use a soft, nonmetallic brush. Make sure
that the module is completely dry and free from contaminants before
returning it to service.

NI SPEEDY-33 User Manual 1-2 ni.com

Chapter 1 NI SPEEDY-33 Overview

Operate the module only at or below Pollution Degree 2. Pollution is
foreign matter in a solid, liquid, or gaseous state that can reduce dielectric
strength or surface resistivity. The following is a description of pollution
degrees:

• Pollution Degree 1 means no pollution or only dry, nonconductive
pollution occurs. The pollution has no influence.

• Pollution Degree 2 means that only nonconductive pollution occurs in
most cases. Occasionally, however, a temporary conductivity caused
by condensation must be expected.

• Pollution Degree 3 means that conductive pollution occurs, or dry,
nonconductive pollution occurs that becomes conductive due to
condensation.

You must insulate signal connections for the maximum voltage for which
the module is rated. Do not exceed the maximum ratings for the module.
Do not install wiring while the module is live with electrical signals. Do not
remove or add connector blocks when power is connected to the system.
Avoid contact between your body and the connector block signal when hot
swapping modules. Remove power from signal lines before connecting
them to or disconnecting them from the module.

Operate the module at or below the measurement category

1

marked on the
hardware label. Measurement circuits are subjected to working voltages
and transient stresses (overvoltage) from the circuit to which they are
connected during measurement or test. Measurement categories establish
standard impulse withstand voltage levels that commonly occur in
electrical distribution systems. The following is a description of
measurement categories:

• Measurement Category I is for measurements performed on circuits

not directly connected to the electrical distribution system referred
to as MAINS

3

voltage. This category is for measurements of
voltages from specially protected secondary circuits. Such voltage
measurements include signal levels, special equipment, limited-energy
parts of equipment, circuits powered by regulated low-voltage sources,
and electronics.

• Measurement Category II is for measurements performed on circuits
directly connected to the electrical distribution system. This category

1

Measurement categories, also referred to as installation categories, are defined in electrical safety standard IEC 61010-1.

2

Working voltage is the highest rms value of an AC or DC voltage that can occur across any particular insulation.

3

MAINS is defined as a hazardous live electrical supply system that powers equipment. Suitably rated measuring circuits may
be connected to the MAINS for measuring purposes.

2

© National Instruments Corporation 1-3 NI SPEEDY-33 User Manual

Chapter 1 NI SPEEDY-33 Overview

• Measurement Category III is for measurements performed in the

• Measurement Category IV is for measurements performed at the

Installation

To install and set up the NI SPEEDY-33, refer to the NI SPEEDY-33
Installation Guide. You can find this document on the NI SPEEDY-33 User

Documentation CD or the National Instruments Web site at

manuals

refers to local-level electrical distribution, such as that provided by a
standard wall outlet (for example, 115 AC voltage for U.S. or 230 AC
voltage for Europe). Examples of Measurement Category II are
measurements performed on household appliances, portable tools,
and similar modules.

building installation at the distribution level. This category refers
to measurements on hard-wired equipment such as equipment in fixed
installations, distribution boards, and circuit breakers. Other examples
are wiring, including cables, bus bars, junction boxes, switches, socket
outlets in the fixed installation, and stationary motors with permanent
connections to fixed installations.

primary electrical supply installation (<1,000 V). Examples include
electricity meters and measurements on primary overcurrent
protection devices and on ripple control units.

ni.com/

.

Software, Drivers, and Examples

The NI SPEEDY-33 is supported by the LabVIEW DSP Module. A variety
of example DSP applications are standard with the LabVIEW DSP
Module.

Refer to the LabVIEW DSP Module Release and Upgrade Notes for
information about installing the LabVIEW DSP Module software and the
NI SPEEDY-33 driver onto your computer. You can find this document on
the National Instruments Web site at

For a tutorial on using the LabVIEW DSP Module with the
NI SPEEDY-33, refer to the Getting Started with the LabVIEW DSP

Module document. You can find this document by selecting Start»
All Programs»National Instruments»LabVIEW»LabVIEW Manuals»
DSP_Getting_Started.pdf.

NI SPEEDY-33 User Manual 1-4 ni.com

ni.com/manuals.

Chapter 1 NI SPEEDY-33 Overview

Example applications for the NI SPEEDY-33 can be found in the
NI Example Finder; in LabVIEW, select Help»Find Examples.

All NI user documentation is available on the National Instruments Web
site at

ni.com/manuals.

© National Instruments Corporation 1-5 NI SPEEDY-33 User Manual

NI SPEEDY-33 Functional
Description and Interface

This chapter describes the NI SPEEDY-33 hardware functions and details
of interfacing and configuring the device. Figure 2-1 shows the
NI SPEEDY-33 layout.

2

4 7 8 9

3

17

2

1

16

1 Power Port for Standalone Mode (J10)
2 PC USB Port (J8)
3 Onboard Microphone (U2, U5)
4 DSP/On-Chip Memory (U6)
5 Flash Memory (U8)
6 Stereo A/D, D/A (U9)
7 Left Channel Audio Input Level Jumper (J1)
8 Right Channel Audio Input Level Jumper (J2)
9 Power LED (DS1)

5 6

18

151517 14

10 Reset Button (SW1)
11 Audio Stereo Input Port (U11)
12 Audio Stereo Output Port (U14)
13 Switch Input Port (SW2)
14 Digital Output Port LEDs (DS2–DS9)
15 Flash Boot Jumper (J12)
16 Simple Expansion Digital I/O Connector (J11)
17 Standard Expansion Analog I/O Connector (J4, J6)
18 Flash Write Enable Jumper (J5)

3

10

11

12

13

Figure 2-1. NI SPEEDY-33 Top View

© National Instruments Corporation 2-1 NI SPEEDY-33 User Manual

Chapter 2 NI SPEEDY-33 Functional Description and Interface

DSP

The digital signal processor on the NI SPEEDY-33 is a powerful
floating-point, flexible, and easy-to-use processor designed by Texas
Instruments.

The VC33 DSP is capable of high performance mathematical operations.
It is a 32-bit, floating-point processor manufactured in 0.18 μm
four-level-metal CMOS (TImeline™) technology, and is part of the
SM320C3x

The VC33 DSP internal busing and special digital signal processing
instruction set have the speed and flexibility to execute up to 150 million
floating-point operations per second (MFLOPS). The VC33 DSP optimizes
speed by implementing functions in hardware that other processors
implement through software or microcode. This hardware-intensive
approach provides performance previously unavailable on a single chip.

Note Although this DSP is capable of 75 MIPS, 150 MFLOPS, the crystal driving the

DSP on the NI SPEEDY-33 is slightly slower than what would be required to achieve this
maximum speed, namely 14.7456 MHz as opposed to the maximum 15 MHz. This allows
for specific desirable sample rates to be achieved for the A/D and D/A hardware described
in the Stereo A/D, D/A (Analog Input, Analog Output) section. Refer to the Appendix A,

Specifications, for information about DSP speed.

™

generation of DSPs from Texas Instruments.

The VC33 DSP can perform parallel multiply and ALU operations on
integer or floating-point data in a single cycle. Each processor possesses a
general-purpose register file, a program cache, dedicated ARAUs, internal
dual-access memories, one DMA channel supporting concurrent I/O, and a
short machine-cycle time, resulting in a high-performance, easy-to-use
device.

Typical signal processing applications are enhanced by the large address
space, multiprocessor interface, internally- and externally-generated wait
states, one external interface port, two timers, one serial port, and a
multiple-interrupt structure. The VC33 DSP supports a wide variety of
system applications from host processor to dedicated coprocessor.
High-level language support is easily implemented through a register-based
architecture, large address space, powerful addressing modes, flexible
instruction set, and well-supported floating-point arithmetic.

NI SPEEDY-33 User Manual 2-2 ni.com