1604 lcd arduino serial library
If we want to delete Task 3 from task 3 itself, you need to write vTaskDelete( NULL ) inside the Task3 function but if you want to delete task 3 from task 2 then write vTaskDelete(xTask3Handle ) inside the task2 function. The content of this task can be now accessed using the handle given by you.Īlso, a task can delete itself by passing NULL in place of a valid task handle. Now, in vTaskCreate() API set 6 th argument as xTaskCreate(TaskBlink2, "task2", 128, NULL, 1, &xTask2Handle ) Let say if you want to set task handle for Task2 which is declared as TaskHandle_t any_name Example: TaskHandle_t xTask2Handle In the previous tutorial, this argument is set as NULL but you can pass the address of the contents of the task by using any name. It is the same as the 6 th argument of xTaskCreate() API. PxTaskToDelete: It is the handle of the task that is to be deleted. vTaskDelete( TaskHandle_t pxTaskToDelete ) To delete a task, we have to use the vTaskDelete() API function. We will be using this config file frequently in our next tutorials for setting the parameters. Now, open this file using any text editor and search for the #define INCLUDE_vTaskDelete and make sure its value is ‘1’ (1 means enable and 0 means disable). In my case, it is available in \Documents\Arduino\libraries\FreeRTOS\src as shown below. The file can be found in the Arduino Directory which is generally available in the Documents folder of your PC. It is used to change the scheduling algorithms and many other parameters. This file is used to tailor FreeRTOS according to the application. To use this API, you have to configure the FreeRTOSConfig.h file. A task can use the vTaskDelete() API function to delete itself, or any other task.
1604 LCD ARDUINO SERIAL LIBRARY CODE
In continuation of the previous tutorial, we will use vTaskDelete() API function in the same code to delete one of the tasks.
![1604 lcd arduino serial library 1604 lcd arduino serial library](https://www.arduino.cc/wiki/static/7d7b6e99f40c7e55f2e9c6175c6db5b5/5a190/LCD_Base_bb_Fritz.png)
1604 LCD ARDUINO SERIAL LIBRARY FREE
Sometimes the task needs to be deleted to free the allotted memory. Here we also learn about Queue to transfer data from one task to another and demonstrate the working of queue APIs by interfacing 16x2 LCD and LDR with the Arduino Uno.īefore discussing about Queues, let’s see one more FreeRTOS API which is helpful in deleting the tasks when it is finished with the assigned work. Now, in this tutorial, we will dive more into advance concepts of RTOS APIs and learn about communication between different tasks. In the previous tutorial, we introduced FreeRTOS in Arduino Uno and created a task for the blinking LED.