About This Guide
This guide provides comprehensive information about Azure RTOS ThreadX SMP, the Microsoft high-performance embedded real-time kernel.
It is intended for the embedded real-time software developer. The developer should be familiar with standard real-time operating system functions and the C programming language.
Organization
| Chapter | Overview |
|---|---|
| Chapter 1 | Provides a basic overview of ThreadX SMP and its relationship to real-time embedded development. |
| Chapter 2 | Gives the basic steps to install and use ThreadX SMP in your application right out of the box. |
| Chapter 3 | Describes in detail the functional operation of ThreadX SMP, the high-performance real-time SMP kernel. |
| Chapter 4 | Details the application’s interface to ThreadX SMP. |
| Chapter 5 | Describes writing I/O drivers for ThreadX SMP applications. |
| Chapter 6 | Describes the demonstration application that is supplied with every ThreadX SMP processor support package. |
| Appendix A | ThreadX SMP API |
| Appendix B | ThreadX SMP constants |
| Appendix C | ThreadX SMP data types |
| Appendix D | ASCII chart |
Guide Conventions
- Italics - typeface denotes book titles, emphasizes important words, and indicates variables.
- Boldface - typeface denotes file names, key words, and further emphasizes important words and variables.
Important
Information symbols draw attention to important or additional information that could affect performance or function.
Warning
Warning symbols draw attention to situations in which developers should take care to avoid because they could cause fatal errors.
ThreadX SMP Data Types
In addition to the custom ThreadX SMP control structure data types, there are a series of special data types that are used in ThreadX SMP service call interfaces. These special data types map directly to data types of the underlying C compiler. This is done to insure portability between different C compilers. The exact implementation can be found in the tx_port.h file included on the distribution disk.
The following is a list of ThreadX SMP service call data types and their associated meanings:
| Data Type | Meaning |
|---|---|
| UINT | Basic unsigned integer. This type must support 8-bit unsigned data; however, it is mapped to the most convenient unsigned data type. |
| ULONG | Unsigned long type. This type must support 32-bit unsigned data. |
| VOID | Almost always equivalent to the compiler’s void type. |
| CHAR | Most often a standard 8-bit character type. |
Additional data types are used within the ThreadX SMP source. They are also located in the tx_port.h file.
Customer Support Center
Support email: azure-rtos-support@microsoft.com Web page: azure.com/rtos
Latest Product Information
Visit the azure.com/rtos web site and select the “Support” menu option to find the latest online support information, including information about the latest ThreadX SMP product releases.
What We Need From You
Please supply us with the following information in an email message so we can more efficiently resolve your support request:
- A detailed description of the problem, including frequency of occurrence and whether it can be reliably reproduced.
- A detailed description of any changes to the application and/or ThreadX SMP that preceded the problem.
- The contents of the _tx_version_id string found in the tx_port.h file of your distribution. This string will provide us valuable information regarding your run-time environment.
- The contents in RAM of the _tx_build_options ULONG variable. This variable will give us information on how your ThreadX SMP library was built.
Where to Send Comments About This Guide
Email any comments and suggestions to the Customer Support Center at azure-rtos-support@microsoft.com Enter “ThreadX SMP User Guide” in the subject line.