How to use uC/OS task control blocks?

The Task Control Block (TCB) is a data structure in the uC/OS operating system that is used to manage information related to tasks. Each task in the system has its own corresponding TCB.

The uC/OS task control block allows for the following operations:

1. Create a task: Use the API functions provided by uC/OS to create a new task and allocate a TCB to that task. Typically, the task creation function will take a pointer to the task function and some other parameters. When creating a task, you can specify information such as the task’s priority and stack size.
2. Task status can be configured by utilizing the status field in TCB. Common task statuses include READY, SUSPENDED, and BLOCKED. By adjusting the status field in TCB, the running and blocking of tasks can be controlled.
3. To obtain the status of a task, you can read the status field in the TCB to determine the current state of the task. This information can be used by scheduling algorithms to schedule tasks.
4. Task switching: The switching of tasks is automatically handled by the uC/OS operating system, so there is no need for manual manipulation of the TCB. During task scheduling, the operating system will choose the next task to run based on factors like priority, and will switch to the task’s TCB to save the context.
5. Task Destruction: When a task has completed its work or is no longer needed, you can use the API functions provided by uC/OS to destroy the task. During task destruction, the operating system will reclaim the resources used by the task and release the task’s TCB.

In general, the use of UC/OS task control blocks allows for the management and operation of tasks through tasks creation, setting status, getting status, switching, and destroying tasks.