README.md

Learning Objectives

• Software Timers.

Concepts

Software timers are used to schedule the execution of a function at a set time in the future, or periodically with a fixed frequency. The function executed by the software timer is called the software timer's callback function.

Software timer callback functions are implemented as C functions and must have the following prototype:

void TimerCallback( TimerHandle_t xTimer );

A software timer’s period is the time between the software timer being started, and the software timer’s callback function executing. There are two types of software timer:

1. One-shot timers - Once started, a one-shot timer will execute its callback function once only. A one-shot timer can be restarted manually, but will not restart itself.

2. Auto-reload timers - Once started, an auto-reload timer will re-start itself each time it expires, resulting in periodic execution of its callback function.

Steps

1. Complete all the TODOs in the source/tutorials/tutorial_11/source/tutorial_11.c file.

2. Execute the following commands from the root of the repository to build:

   rm -rf build
   mkdir build
   cd build
   cmake -B . -S ../source/ -DTUTORIAL=11
   make

3. Execute the following command to run the binary:

   ./freertos_example

4. Understand the output.