{"id":5909,"date":"2021-03-26T04:19:13","date_gmt":"2021-03-26T04:19:13","guid":{"rendered":"http:\/\/fastbitlab.com\/?p=5909"},"modified":"2023-09-02T14:38:50","modified_gmt":"2023-09-02T09:08:50","slug":"what-is-the-tasks","status":"publish","type":"post","link":"https:\/\/fastbitlab.com\/blog\/what-is-the-tasks\/","title":{"rendered":"FreeRTOS Lecture 21 – What is the task?"},"content":{"rendered":"
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What is the task?<\/span><\/h1>\n
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Introduction:<\/strong><\/span><\/span><\/p>\n

We do lots of tasks in a day. Our typical tasks for each day could be having breakfast, replying to emails, taking phone calls, taking notes, attending appointments, etc. (Figure 1). <\/span><\/p>\n

For each task, we spend a couple of minutes to hours. Sometimes we do one task at a time, and sometimes we go for multitasking of different tasks. <\/span><\/p>\n

Basically, our typical day is full of different types of tasks, and we try to manage our time to accomplish tasks as much as possible.<\/span><\/p>\n

\"Typical
Figure 1. Typical tasks of a day.<\/span><\/figcaption><\/figure>\n

Similarly, in the computing world also there is an application, which comprises different types of tasks.<\/span><\/p>\n

For instance, take the example of temperature monitoring application (Figure 2). This application can be implemented by using 3 tasks as follows:<\/span><\/p>\n

Task 1: Gathering the sensor data.<\/span><\/p>\n

Task 2: Updating the display.<\/span><\/p>\n

Task 3: Task 3 always waits for processing the user input.<\/span><\/p>\n

\"tasks\"
Figure 2. Temperature monitoring application.<\/span><\/figcaption><\/figure>\n

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In FreeRTOS, also we divide an application into a different task, which can accomplish one purpose.<\/span><\/p>\n

If you apply this analogy to the general-purpose operating system, there also is one big application, and there could be a number of different processes.<\/span><\/p>\n

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Task Definition:<\/strong><\/span><\/p>\n

In the general-purpose operating system, we call it processes, but in RTOS, we call it a task.<\/span><\/p>\n

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A task is nothing but a piece of code that is schedulable and which accomplishes our useful purpose. <\/span><\/p>\n<\/blockquote>\n

For example, in the case of temperature monitoring application, Task 1 is nothing but a piece of code, which is schedulable, and it accomplishes the gathering of sensor data. <\/span><\/p>\n

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How do you create and implement a task in a FreeRTOS?<\/strong><\/span><\/p>\n