Creating tasks and starting the scheduler

The chapter’s first example-program is a FreeRTOS application with three tasks. Each task blinks an LED, and it interacts with the other tasks. The interactions are designed to illustrate particular ways that FreeRTOS works.

The FreeRTOS-based application is in the IDE-project Chapter_07, in the file Src\main_taskCreation.c. We’ll show how the program works, then run the program, and use SystemView to analyze the tasks’ behavior.

In order to get an RTOS application up and running, a few things need to happen:

1. The MCU hardware needs to be initialized.
2. The task functions need to be defined, e.g., C functions.
3. RTOS tasks need to be created and mapped to the task functions.
4. The return values for task-creation need to be checked, and errors handled.
5. The RTOS scheduler must be started.

These are the typical steps for using the scheduler and tasks. Of course, there are additional...