SOFTWARE EXPERT WITNESS SERVICES Meet Michael Barr, Software Expert. Barr Group co-founder Michael Barr is a former adjunct professor of computer engineering with more than twenty-five years of experience in the software industry, including over a decade spent developing software for embedded systems. EMBEDDED C CODING STANDARD Embedded C Coding Standard. A C coding standard is a set of rules for source code that is adopted by a team of programmers working together on a project, such as the design of an embedded system. Programming teams and companies write down their C coding standards for a variety of reasons but often bicker internally about which rules to follow. CRC IMPLEMENTATION CODE IN C AND C++ Download Barr Group's Free CRC Code in C now. A CRC is a powerful type of checksum that is able to detect corruption of data that is stored in and/or transmitted between computers. If you suspect data corruption has led to a system failure, Barr Group can help by performing forensic analysis and reverse engineering services. FAST ACCURATE MEMORY TEST CODE IN C Listing 1. Data bus test. The function memTestDataBus (), in Listing 1, shows how to implement the walking 1's test in C. It assumes that the caller will select the test address, and tests the entire set of data values at that address. If the data bus is working properly, the function will return 0. SERIAL COMMUNICATION PROTOCOLS: CAN VS. SPISEE MORE ON BARRGROUP.COM HOW TO CREATE JUMP TABLES VIA FUNCTION POINTER ARRAYS IN CSEE MORE ON

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HOW TO CODE A STATE MACHINE IN C OR C++ ASSEMBLY VS. C: WHICH IS BEST FOR MICROCONTROLLERS?SEE MORE ON

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INTRODUCTION TO FINITE IMPULSE RESPONSE FILTERS FOR DSP A finite impulse response (FIR) filter is a filter structure that can be used to implement almost any sort of frequency response digitally. An FIR filter is usually implemented by using a series of delays, multipliers, and adders to create the filter's output. Figure 2 shows the basic block diagram for an FIR filter of length N. HOW TO USE C’S VOLATILE KEYWORD C's volatile keyword is a qualifier that is applied to a variable when it is declared. It tells the compiler that the value of the variable may change at any time--without any action being taken by the code the compiler finds nearby. The implications of this can be quite serious, and sometimes software experts testify in regard to product SOFTWARE EXPERT WITNESS SERVICES Meet Michael Barr, Software Expert. Barr Group co-founder Michael Barr is a former adjunct professor of computer engineering with more than twenty-five years of experience in the software industry, including over a decade spent developing software for embedded systems. EMBEDDED C CODING STANDARD Embedded C Coding Standard. A C coding standard is a set of rules for source code that is adopted by a team of programmers working together on a project, such as the design of an embedded system. Programming teams and companies write down their C coding standards for a variety of reasons but often bicker internally about which rules to follow. CRC IMPLEMENTATION CODE IN C AND C++ Download Barr Group's Free CRC Code in C now. A CRC is a powerful type of checksum that is able to detect corruption of data that is stored in and/or transmitted between computers. If you suspect data corruption has led to a system failure, Barr Group can help by performing forensic analysis and reverse engineering services. FAST ACCURATE MEMORY TEST CODE IN C Listing 1. Data bus test. The function memTestDataBus (), in Listing 1, shows how to implement the walking 1's test in C. It assumes that the caller will select the test address, and tests the entire set of data values at that address. If the data bus is working properly, the function will return 0. SERIAL COMMUNICATION PROTOCOLS: CAN VS. SPISEE MORE ON BARRGROUP.COM HOW TO CREATE JUMP TABLES VIA FUNCTION POINTER ARRAYS IN CSEE MORE ON

BARRGROUP.COM

HOW TO CODE A STATE MACHINE IN C OR C++ ASSEMBLY VS. C: WHICH IS BEST FOR MICROCONTROLLERS?SEE MORE ON

BARRGROUP.COM

INTRODUCTION TO FINITE IMPULSE RESPONSE FILTERS FOR DSP A finite impulse response (FIR) filter is a filter structure that can be used to implement almost any sort of frequency response digitally. An FIR filter is usually implemented by using a series of delays, multipliers, and adders to create the filter's output. Figure 2 shows the basic block diagram for an FIR filter of length N. HOW TO USE C’S VOLATILE KEYWORD C's volatile keyword is a qualifier that is applied to a variable when it is declared. It tells the compiler that the value of the variable may change at any time--without any action being taken by the code the compiler finds nearby. The implications of this can be quite serious, and sometimes software experts testify in regard to product FREE SOURCE CODE: CRC IMPLEMENTATION IN C Free Source Code: CRC Implementation in C. A cyclic redundancy code (CRC) is a powerful type of checksum that is able to detect corruption of data that is stored in and/or transmitted between embedded systems. Generally speaking, CRCs are most efficiently calculated in dedicated hardware. However, sometimes you must compute a CRC in software EFFICIENT C CODE FOR 8-BIT MICROCONTROLLERS The 8051, 68HC11, and Microchip PIC are popular microcontrollers, but they aren't necessarily easy to program. This article shows how the use of ANSI C and compiler-specific constructs can help generate

tighter code.

CRC SERIES, PART 1: ADDITIVE CHECKSUMS This article began as a column in the November 1999 issue of Embedded Systems Programming.. Additional Resources. Download Barr Group's CRC

Code-C

ASSEMBLY VS. C: WHICH IS BEST FOR MICROCONTROLLERS? C had beaten assembly in terms of program efficiency. 3. But that wasn't the only surprise result on this project. Another was that the new firmware image was actually smaller than the old one. Recall that the original assembly program consisted of about 2kwords of HOW TO GET STARTED WITH C++ IN EMBEDDED SYSTEMS C++ compilers are available for most modern embedded processors, yet the adoption rate remains low. Here we provide very practical advice to help you can get started with C++ immediately. The discussion moves quickly from dispelling common C++ myths and identifying key C++ benefits to a set of practical tips and tricks to help you put C++ to BUG-KILLING CODING STANDARD RULES FOR EMBEDDED C Bug-Killing Coding Standard Rules for Embedded C. A C coding standard can help keep bugs out of embedded software by leveraging common language features and development tools. A coding standard defines a set of rules for programmers to follow in a given language. This makes a coding standard similar in purpose to the English standard known as INTRODUCTION TO FINITE IMPULSE RESPONSE FILTERS FOR DSP A finite impulse response (FIR) filter is a filter structure that can be used to implement almost any sort of frequency response digitally. An FIR filter is usually implemented by using a series of delays, multipliers, and adders to create the filter's output. Figure 2 shows the basic block diagram for an FIR filter of length N. HOW TO USE JAVA IN EMBEDDED SYSTEMS For now, embedded developers wanting to use Java must make do with a Java VM. Unfortunately, that means slow execution-sometimes less than 10% as fast as a similar program written in C. In the long run, performance will become less of an issue as embedded JIT compilers, AOT compilers, and JavaChips begin to appear. CRC SERIES, PART 2: CRC MATHEMATICS AND THEORY CRC Series, Part 2: CRC Mathematics and Theory. Posted: Wed, 1999-12-01 00:00 - Michael Barr. Checksum algorithms based solely on addition are easy to implement and can be executed efficiently on any microcontroller. However, many common types of transmission errors cannot be detected when such simple checksums are used. MUTEXES AND SEMAPHORES DEMYSTIFIED The question "What is the difference between a mutex and a semaphore?" is short and easily phrased. Answering it is more difficult. In this first installment of a series of articles on the proper use of a real-time operating system (RTOS), we examine the important differences between a mutex and a semaphore. SOFTWARE EXPERT WITNESS SERVICES Meet Michael Barr, Software Expert. Barr Group co-founder Michael Barr is a former adjunct professor of computer engineering with more than twenty-five years of experience in the software industry, including over a decade spent developing software for embedded systems. EMBEDDED C CODING STANDARD Embedded C Coding Standard. A C coding standard is a set of rules for source code that is adopted by a team of programmers working together on a project, such as the design of an embedded system. Programming teams and companies write down their C coding standards for a variety of reasons but often bicker internally about which rules to follow. EMBEDDED SYSTEMS ARCHITECTURE CONSULTING Embedded systems architecture is the structure that defines how embedded hardware and firmware interrelate to perform a specific task. Unlike architectures within other types of computer systems, embedded system architectures are often limited by the size, EMBEDDED SYSTEMS SECURITY TRAINING AND BOOT CAMP Barr Group's Embedded Security Boot Camp® is a 4-day immersion into the unique challenges of building security into embedded devices. Through lectures and hands-on exercises, this intense, fun, and information-rich program will lead engineers through the steps of architecting and implementing secure embedded systems applications, including preventing electronics, firmware, and network attacks CRC IMPLEMENTATION CODE IN C AND C++ Download Barr Group's Free CRC Code in C now. A CRC is a powerful type of checksum that is able to detect corruption of data that is stored in and/or transmitted between computers. If you suspect data corruption has led to a system failure, Barr Group can help by performing forensic analysis and reverse engineering services. TECH TALK: BLOCKCHAIN AND EMBEDDED SYSTEMS A blockchain is a distributed database that is impervious to attacks aiming to change the history of the transactions it records. In this video, testifying software expert witness Michael Barr talks about blockchain and how it may impact embedded systems in IoT devices.

Transcript

EMBEDDED C CODING STANDARD Embedded C Coding Standard 1 Introduction Purpose of the Standard Barr Group’s Embedded C Coding Standard was designed specifically to reduce the number of programming defects in embedded software. By following this coding HOW TO PREVENT BUGS IN EMBEDDED SOFTWARE WITH TDD It’s a fact: When you create code, you create bugs. Listen in as we present the finer points of Test-Driven Development (TDD) - a game-changing approach to embedded software development that can greatly reduce bugs early in the development process. TDD is not a debugging technique but rather an approach to proactively preventing

defects.

DIFFERENCES BETWEEN U.S. AND CANADIAN COURTS EMBEDDED LINUX CUSTOMIZATION AND DRIVER DEVELOPMENT Format: Hands-on/Lecture. Whether you are developing Linux device drivers for unsupported peripherals or writing a board support package (BSP) to port the operating system to custom embedded hardware, there's a steep learning curve. Through a mix of lectures and hands-on programming exercises on real hardware, this course will help you

quickly

SOFTWARE EXPERT WITNESS SERVICES Meet Michael Barr, Software Expert. Barr Group co-founder Michael Barr is a former adjunct professor of computer engineering with more than twenty-five years of experience in the software industry, including over a decade spent developing software for embedded systems. EMBEDDED C CODING STANDARD Embedded C Coding Standard. A C coding standard is a set of rules for source code that is adopted by a team of programmers working together on a project, such as the design of an embedded system. Programming teams and companies write down their C coding standards for a variety of reasons but often bicker internally about which rules to follow. EMBEDDED SYSTEMS ARCHITECTURE CONSULTING Embedded systems architecture is the structure that defines how embedded hardware and firmware interrelate to perform a specific task. Unlike architectures within other types of computer systems, embedded system architectures are often limited by the size, EMBEDDED SYSTEMS SECURITY TRAINING AND BOOT CAMP Barr Group's Embedded Security Boot Camp® is a 4-day immersion into the unique challenges of building security into embedded devices. Through lectures and hands-on exercises, this intense, fun, and information-rich program will lead engineers through the steps of architecting and implementing secure embedded systems applications, including preventing electronics, firmware, and network attacks CRC IMPLEMENTATION CODE IN C AND C++ Download Barr Group's Free CRC Code in C now. A CRC is a powerful type of checksum that is able to detect corruption of data that is stored in and/or transmitted between computers. If you suspect data corruption has led to a system failure, Barr Group can help by performing forensic analysis and reverse engineering services. TECH TALK: BLOCKCHAIN AND EMBEDDED SYSTEMS A blockchain is a distributed database that is impervious to attacks aiming to change the history of the transactions it records. In this video, testifying software expert witness Michael Barr talks about blockchain and how it may impact embedded systems in IoT devices.

Transcript

EMBEDDED C CODING STANDARD Embedded C Coding Standard 1 Introduction Purpose of the Standard Barr Group’s Embedded C Coding Standard was designed specifically to reduce the number of programming defects in embedded software. By following this coding HOW TO PREVENT BUGS IN EMBEDDED SOFTWARE WITH TDD It’s a fact: When you create code, you create bugs. Listen in as we present the finer points of Test-Driven Development (TDD) - a game-changing approach to embedded software development that can greatly reduce bugs early in the development process. TDD is not a debugging technique but rather an approach to proactively preventing

defects.

DIFFERENCES BETWEEN U.S. AND CANADIAN COURTS EMBEDDED LINUX CUSTOMIZATION AND DRIVER DEVELOPMENT Format: Hands-on/Lecture. Whether you are developing Linux device drivers for unsupported peripherals or writing a board support package (BSP) to port the operating system to custom embedded hardware, there's a steep learning curve. Through a mix of lectures and hands-on programming exercises on real hardware, this course will help you

quickly

CRC IMPLEMENTATION CODE IN C AND C++ Download Barr Group's Free CRC Code in C now. A CRC is a powerful type of checksum that is able to detect corruption of data that is stored in and/or transmitted between computers. If you suspect data corruption has led to a system failure, Barr Group can help by performing forensic analysis and reverse engineering services. BOOKS ON EMBEDDED SOFTWARE Embedded Systems Dictionary. The Embedded Systems Dictionary, by Michael Barr and Jack Ganssle, was the first attempt to gather all the vocabulary of embedded systems designers in one reference volume.The dictionary defines more than 2,800 terms and clarifies the meanings and usage of each individual term. A subset of the book's definitions is available free on this website. ULTRASOUND MEDICAL IMAGING EXPERT WITNESS Ultrasound Medical Imaging Expert Profile. Former assistant professor of electrical and computer engineering and Oxford-educated materials scientist whose areas of specialized technical expertise include design of semiconductors and other electronics and sensors and micro-electromechanical systems (MEMS) as well as signal and image

processing.

PROGRAMMING EMBEDDED SYSTEMS IN C AND C++ Programming Embedded Systems in C and C++. Embedded software is in almost every electronic device we use today. There is software hidden away inside our watches, microwaves, VCRs, cellular telephones, and pagers; the military uses embedded software to guide smart missiles; and communications satellites, space probes, and modern medicine would HOW AND WHEN TO USE C'S ASSERT() MACRO The assert() macro is one of those simple tools that would not seem to merit an entire article, but I have come across an alarming number of engineers who have not heard of it or do not use it. Hopefully this article will help bolster the number who make good use of this feature. In this article, we will look at appropriate use of assertions, and in the follow-on article How to Define Your Own HOW TO USE THE C PREPROCESSOR'S #ERROR DIRECTIVE One of the least used but potentially most useful features of the C preprocessor is the ANSI-specified #error directive. Here's a look at

a couple of clever

HOW TO USE JAVA IN EMBEDDED SYSTEMS For now, embedded developers wanting to use Java must make do with a Java VM. Unfortunately, that means slow execution-sometimes less than 10% as fast as a similar program written in C. In the long run, performance will become less of an issue as embedded JIT compilers, AOT compilers, and JavaChips begin to appear. ORACLE V. GOOGLE JAVA API COPYRIGHT DISPUTE NEARS END The long-running court fight between Google and Oracle over Android's unlicensed use of Java API code is coming to a final battle. The ultimate appeal will be heard by the U.S. Supreme Court on October 7, 2020, albeit no longer with keen copyright jurist Ruth Bader Ginsburg

on the panel.

BUG-KILLING CODING STANDARD RULES FOR EMBEDDED C Bug-Killing Coding Standard Rules for Embedded C. A C coding standard can help keep bugs out of embedded software by leveraging common language features and development tools. A coding standard defines a set of rules for programmers to follow in a given language. This makes a coding standard similar in purpose to the English standard known as CASE STUDY: LETHAL SOFTWARE DEFECTS--PATRIOT MISSILE FAILURE by Michael Barr. During the Gulf War, twenty-eight U.S. soldiers were killed and almost one hundred others were wounded when a nearby Patriot missile defense system failed to properly track a Scud missile

launched from Iraq.

SOFTWARE EXPERT WITNESS SERVICES Meet Michael Barr, Software Expert. Barr Group co-founder Michael Barr is a former adjunct professor of computer engineering with more than twenty-five years of experience in the software industry, including over a decade spent developing software for embedded systems. EMBEDDED C CODING STANDARD Embedded C Coding Standard. A C coding standard is a set of rules for source code that is adopted by a team of programmers working together on a project, such as the design of an embedded system. Programming teams and companies write down their C coding standards for a variety of reasons but often bicker internally about which rules to follow. EMBEDDED SYSTEMS ARCHITECTURE CONSULTING Embedded systems architecture is the structure that defines how embedded hardware and firmware interrelate to perform a specific task. Unlike architectures within other types of computer systems, embedded system architectures are often limited by the size, EMBEDDED SYSTEMS SECURITY TRAINING AND BOOT CAMP Barr Group's Embedded Security Boot Camp® is a 4-day immersion into the unique challenges of building security into embedded devices. Through lectures and hands-on exercises, this intense, fun, and information-rich program will lead engineers through the steps of architecting and implementing secure embedded systems applications, including preventing electronics, firmware, and network attacks HOW AND WHEN TO USE C'S ASSERT() MACRO The assert() macro is one of those simple tools that would not seem to merit an entire article, but I have come across an alarming number of engineers who have not heard of it or do not use it. Hopefully this article will help bolster the number who make good use of this feature. In this article, we will look at appropriate use of assertions, and in the follow-on article How to Define Your Own EMBEDDED C CODING STANDARD Embedded C Coding Standard 1 Introduction Purpose of the Standard Barr Group’s Embedded C Coding Standard was designed specifically to reduce the number of programming defects in embedded software. By following this coding TECH TALK: BLOCKCHAIN AND EMBEDDED SYSTEMS A blockchain is a distributed database that is impervious to attacks aiming to change the history of the transactions it records. In this video, testifying software expert witness Michael Barr talks about blockchain and how it may impact embedded systems in IoT devices.

Transcript

HOW TO PREVENT BUGS IN EMBEDDED SOFTWARE WITH TDD Listen in as we present the finer points of Test-Driven Development (TDD) - a game-changing approach to embedded software development that can greatly reduce bugs early in the development process. TDD is not a debugging technique but rather an approach to proactively preventing defects. The remainder of this page is a transcript of the 1-hour DIFFERENCES BETWEEN U.S. AND CANADIAN COURTS EMBEDDED LINUX CUSTOMIZATION AND DRIVER DEVELOPMENTEMBEDDED LINUX COURSEEMBEDDED LINUX DEVELOPMENT KITEMBEDDED LINUX DEVELOPMENT PDFEMBEDDED LINUX OSEMBEDDED LINUX SYSTEMLINUX DRIVER DEVELOPMENT PDF Format: Hands-on/Lecture. Whether you are developing Linux device drivers for unsupported peripherals or writing a board support package (BSP) to port the operating system to custom embedded hardware, there's a steep learning curve. Through a mix of lectures and hands-on programming exercises on real hardware, this course will help you

quickly

SOFTWARE EXPERT WITNESS SERVICES Meet Michael Barr, Software Expert. Barr Group co-founder Michael Barr is a former adjunct professor of computer engineering with more than twenty-five years of experience in the software industry, including over a decade spent developing software for embedded systems. EMBEDDED C CODING STANDARD Embedded C Coding Standard. A C coding standard is a set of rules for source code that is adopted by a team of programmers working together on a project, such as the design of an embedded system. Programming teams and companies write down their C coding standards for a variety of reasons but often bicker internally about which rules to follow. EMBEDDED SYSTEMS ARCHITECTURE CONSULTING Embedded systems architecture is the structure that defines how embedded hardware and firmware interrelate to perform a specific task. Unlike architectures within other types of computer systems, embedded system architectures are often limited by the size, EMBEDDED SYSTEMS SECURITY TRAINING AND BOOT CAMP Barr Group's Embedded Security Boot Camp® is a 4-day immersion into the unique challenges of building security into embedded devices. Through lectures and hands-on exercises, this intense, fun, and information-rich program will lead engineers through the steps of architecting and implementing secure embedded systems applications, including preventing electronics, firmware, and network attacks HOW AND WHEN TO USE C'S ASSERT() MACRO The assert() macro is one of those simple tools that would not seem to merit an entire article, but I have come across an alarming number of engineers who have not heard of it or do not use it. Hopefully this article will help bolster the number who make good use of this feature. In this article, we will look at appropriate use of assertions, and in the follow-on article How to Define Your Own EMBEDDED C CODING STANDARD Embedded C Coding Standard 1 Introduction Purpose of the Standard Barr Group’s Embedded C Coding Standard was designed specifically to reduce the number of programming defects in embedded software. By following this coding TECH TALK: BLOCKCHAIN AND EMBEDDED SYSTEMS A blockchain is a distributed database that is impervious to attacks aiming to change the history of the transactions it records. In this video, testifying software expert witness Michael Barr talks about blockchain and how it may impact embedded systems in IoT devices.

Transcript

HOW TO PREVENT BUGS IN EMBEDDED SOFTWARE WITH TDD Listen in as we present the finer points of Test-Driven Development (TDD) - a game-changing approach to embedded software development that can greatly reduce bugs early in the development process. TDD is not a debugging technique but rather an approach to proactively preventing defects. The remainder of this page is a transcript of the 1-hour DIFFERENCES BETWEEN U.S. AND CANADIAN COURTS EMBEDDED LINUX CUSTOMIZATION AND DRIVER DEVELOPMENTEMBEDDED LINUX COURSEEMBEDDED LINUX DEVELOPMENT KITEMBEDDED LINUX DEVELOPMENT PDFEMBEDDED LINUX OSEMBEDDED LINUX SYSTEMLINUX DRIVER DEVELOPMENT PDF Format: Hands-on/Lecture. Whether you are developing Linux device drivers for unsupported peripherals or writing a board support package (BSP) to port the operating system to custom embedded hardware, there's a steep learning curve. Through a mix of lectures and hands-on programming exercises on real hardware, this course will help you

quickly

EMBEDDED C CODING STANDARD Embedded C Coding Standard. A C coding standard is a set of rules for source code that is adopted by a team of programmers working together on a project, such as the design of an embedded system. Programming teams and companies write down their C coding standards for a variety of reasons but often bicker internally about which rules to follow. BOOKS ON EMBEDDED SOFTWARE Embedded Systems Dictionary. The Embedded Systems Dictionary, by Michael Barr and Jack Ganssle, was the first attempt to gather all the vocabulary of embedded systems designers in one reference volume.The dictionary defines more than 2,800 terms and clarifies the meanings and usage of each individual term. A subset of the book's definitions is available free on this website. EMBEDDED SYSTEMS ARCHITECTURE CONSULTING Embedded systems architecture is the structure that defines how embedded hardware and firmware interrelate to perform a specific task. Unlike architectures within other types of computer systems, embedded system architectures are often limited by the size, CRC IMPLEMENTATION CODE IN C AND C++ Download Barr Group's Free CRC Code in C now. A CRC is a powerful type of checksum that is able to detect corruption of data that is stored in and/or transmitted between computers. If you suspect data corruption has led to a system failure, Barr Group can help by performing forensic analysis and reverse engineering services. PROGRAMMING EMBEDDED SYSTEMS IN C AND C++ Programming Embedded Systems in C and C++. Embedded software is in almost every electronic device we use today. There is software hidden away inside our watches, microwaves, VCRs, cellular telephones, and pagers; the military uses embedded software to guide smart missiles; and communications satellites, space probes, and modern medicine would HOW TO USE JAVA IN EMBEDDED SYSTEMS For now, embedded developers wanting to use Java must make do with a Java VM. Unfortunately, that means slow execution-sometimes less than 10% as fast as a similar program written in C. In the long run, performance will become less of an issue as embedded JIT compilers, AOT compilers, and JavaChips begin to appear. BUG-KILLING CODING STANDARD RULES FOR EMBEDDED C Bug-Killing Coding Standard Rules for Embedded C. A C coding standard can help keep bugs out of embedded software by leveraging common language features and development tools. A coding standard defines a set of rules for programmers to follow in a given language. This makes a coding standard similar in purpose to the English standard known as SERIAL COMMUNICATION PROTOCOLS: CAN VS. SPI The biggest difference between CAN and SPI is that the CAN protocol defines packets. In SPI (and serial interfaces in general), only the transmission of a byte is fully defined. Given a mechanism for byte transfer, software can provide a packet layer, but no standard size or type exists for a serial packet. Since packet transfer is standardized ORACLE V. GOOGLE JAVA API COPYRIGHT DISPUTE NEARS END The long-running court fight between Google and Oracle over Android's unlicensed use of Java API code is coming to a final battle. The ultimate appeal will be heard by the U.S. Supreme Court on October 7, 2020, albeit no longer with keen copyright jurist Ruth Bader Ginsburg

on the panel.

CASE STUDY: LETHAL SOFTWARE DEFECTS--PATRIOT MISSILE FAILURE by Michael Barr. During the Gulf War, twenty-eight U.S. soldiers were killed and almost one hundred others were wounded when a nearby Patriot missile defense system failed to properly track a Scud missile

launched from Iraq.

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MEET MICHAEL BARR, SOFTWARE EXPERT Barr Group co-founder Michael Barr is a former adjunct professor of computer engineering with more than twenty-five years of experience in the software industry, including over a decade spent developing software for embedded systems. Mr. Barr is the author of three books and more than seventy articles and papers about embedded software design and architecture and has testified more than twenty times before judges and juries. He has been qualified in U.S. and Canadian courts as an expert in computer software, electrical engineering, and satellite TV piracy. View Michael Barr's expert witness CV > WHAT IS AN EXPERT WITNESS? An expert witness is a highly qualified academic or experienced practitioner in a specified field whose impartial opinions are respected by courts and thus permitted to be expressed in front of judges and juries. Depending on their technical field, a typical expert witness has both university degrees (often a Ph.D.) as well as hands-on experience working in industry. The courts of different jurisdictions, such as United States District Court vs. the Patent Trial and Appeal Board, define the rules for permissible experts and testimony in their venues. Barr Group assists the legal community in finding the best expert for cases that require analysis of software or electronics and/or related opinions. We maintain an expert witness directory that provides profiles for a representative set of our engineer. However, not all of Barr Group's experts are profiled on our website. If you have a case that needs an expert please contact us now for a free

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EMBEDDED C CODING STANDARD THE INDUSTRY BENCHMARK A C coding standard is a set of rules for source code that is adopted by a team of programmers working together on a project, such as the design of an embedded system.  Barr Group's Embedded C Coding Standard was developed to minimize bugs in firmware by focusing on practical rules that keep bugs out and is one of the top used coding standards in the embedded systems design community. Learn the bug killing rules

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