Timer Callback (FreeRTOS) - Freertos Typing CST Test
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Timer Callback (FreeRTOS) — Freertos Code
Sets up a FreeRTOS software timer with a callback function.
#include <FreeRTOS.h>
#include <timers.h>
#include <stdio.h>
void vTimerCallback(TimerHandle_t xTimer) {
printf("Timer callback triggered\n");
}
int main() {
TimerHandle_t xTimer = xTimerCreate("Timer", pdMS_TO_TICKS(1000), pdTRUE, NULL, vTimerCallback);
xTimerStart(xTimer, 0);
vTaskStartScheduler();
return 0;
}Freertos Language Guide
FreeRTOS is a lightweight, open-source real-time operating system (RTOS) kernel for embedded devices. It provides multitasking, scheduling, and inter-task communication for microcontrollers and small processors.
Primary Use Cases
- ▸Task scheduling for embedded systems
- ▸IoT and sensor node software
- ▸Industrial automation control
- ▸Real-time motor and sensor management
- ▸Edge devices and microcontroller applications
Notable Features
- ▸Preemptive and cooperative multitasking
- ▸Task priorities and time slicing
- ▸Inter-task communication (queues, semaphores, mutexes)
- ▸Software timers and tickless idle mode
- ▸Memory management and dynamic allocation support
Origin & Creator
Created by Richard Barry in 2003, now maintained and extended by Amazon Web Services as Amazon FreeRTOS and FreeRTOS Kernel.
Industrial Note
Essential in embedded systems requiring predictable real-time behavior, small footprint, and multitasking support-commonly used in IoT sensors, motor control, and safety-related microcontroller applications.