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RTOS Book 2 - Example Code Units

.The code units provided here are for information and help; they are definitely not to be treated as being prescriptive. They describe merely one way to solve the problems raised by the exercises, and all are functionally correct. Note that only the key language files are supplied, not the full project set. Here the key guiding principles in producing source code are that such code:

Should be easy to read.
Should be easy to understand and
Should avoid complex or obscure language constructs.

As a result some of you may consider the outcome to be unsophisticated and/or verbose. So be it.

To finish: a final (personal) comment. I have never understood why so many programmers strive to minimize the size of their source code. Experience has shown that there can be a real downside to taking such an approach. Because, in many cases, the outcome is text that is complex and difficult to understand. And this, unfortunately, can make it a challenging task to maintain such code through the lifetime of a project.

The real issue for the embedded system designer is the size of the object code (not the source code). This is especially important where the available memory is limited, an important issue in MCU-based designs. Two factors help keep object code down: using simple source code constructs and employing an optimizing compiler.

Example Code Units

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Chapter 2:

Preliminary exercise - main.c
Exercise 1 - main.c
Exercise 2 - main.c
Exercise 3 - main.c
Exercise 4 - main.c

Chapter 3:

Exercise 5 - main.c
Exercise 6 - main.c
Exercise 7 - main.c
Exercise 8 - main.c
Exercise 9 - main.c
Exercise 10 - main.c
Exercise 11 - LedSAndPB.h | main.c | ProtectedObject1.c | ProtectedObject1.h
Exercise 12 - LedSAndPB.h | main.c | MutexProtectedObject.c | MutexProtectedObject.h

Chapter 4:

Exercise 13 - FlagObject.c | FlagObject.h | LedSAndPB.h | main.c
Exercise 14 - main.c
Exercise 15 - main.c
Exercise 16 - main.c
Exercise 18 - main.c | PoolObject.c | PoolObject.h
Exercise 19 - main.c | LedSAndPB19.h
Exercise 20 - MailboxModule.c | MailboxModule.h | main.c
Exercise 21 - main.c | stm32f4xx_it.c
Exercise 22 - main.c | stm32f4xx_it.c
exercise 23 - EFSema1Object.c | EFSema1Object.h | main.c | stm32f4xx_it.c

Chapter 6:

Trace ex 2 - main.c
Trace ex 3 - main.c
Trace ex 4 - main.c
Trace ex 5 - main.c
Trace ex 6 - main ex 6.1.c | main ex 6.2.c | main ex 6.3.c

Chapter 7:

main.c

Chapter 8:

Trace ex 8 - main.c
Trace ex 9 - main.c
Trace ex 10 - LedsAndPBsEx10.h | MailboxModule.c | MailboxModule.h | main.c
Trace ex 11 - CommonVariables.c | CommonVariables.h | EFSema1Object.c | EFSema1Object.h | LedsAndPB.c | LedsAndPB.h | main ex 11a, 11b.c | main ex 11c.c | stm32f4xx_it.h

Chapter 10:

Ext. exercise 1 - main.c
Ext. exercise 2 - main.c
Ext. exercise 3 - main.c
Ext. exercise 4.1 - main.c
Ext. exercise 4.2 - main.c
Ext. exercise 4.3 - main.c
Ext. exercise 5 - main.c
Ext. exercise 6.1 - main.c
Ext. exercise 6.2 - main.c
Ext. exercise 7 - main.c

Chapter 11:

Ext. exercise 8 - main.c
Ext. exercise 9 - main.c
Ext. exercise 10 - main.c
Ext. exercise 11 - main.c
Ext. exercise 12 - main.c
Ext. exercise 13 - main.c
Ext. exercise 14 - main.c
Ext. exercise 15 - main.c
Ext. exercise 16 - main.c | stm32f4xx_it.c
Ext. exercise 17 - LedSAndPBEx17.h | main.c | ModeFlag.c | ModeFlag.h | stm32f4xx_it.c
Ext. exercise 18 - LedSAndPBex18.h | main.c | WDTFlagObject.c | WDTFlagObject.h

Chapter 12:

Ext. exercise 19 - LedSAndPBex19.h | main.c | WDTFlagObject.c | WDTFlagObject.h
Ext. exercise 20 - FlagObjects.c | FlagObjects.h | LedSAndPBex20.h | main.c
Ext. exercise 21 - EFSema1Object.c | EFSema1Object.h | LedsAndPBex21.c | LedsAndPBExercise21.h | main.c
Ext. exercise 22 - EFSema1Object.c | EFSema1Object.h | LedsAndPBex22.c | LedsAndPBex22.h | main.c

Chapter 13:

Ext. exercise 23 - main.c
Ext. exercise 24 - main.c
Ext. exercise 25 - main.c
Ext. exercise 26 - main.c
Ext. exercise 27 - main.c
Ext. exercise 28 - main.c