In this tutorial, we will learn to use FreeRTOS gatekeeper tasks API. We will see examples with Arduino. Gatekeeper tasks are used to implement mutual exclusion events without the risk of priority inversion and deadlocks. As we have discussed in previous tutorials, FreeRTOS mutex suffers from priority inversion and deadlocks problems. Although, we can resolve … Read more
Deadlock is another issue that might occur due to the use of mutual exclusion events or mutex. In the last tutorial, we have learned to use FreeRTOS mutex API with Arduino. We have seen how mutex can be used to avoid priority inheritance. But mutex also creates an issue of deadlock between tasks. Deadlock is … Read more
Resource management is a key factor in designing applications based on real-time operating systems. In RTOS, more than one tasks share resources with each other such as peripherals, data, or external devices. Therefore, FreeRTOS provides a mutex semaphore to share resources between tasks securely and without data corruption. In this tutorial, we will learn to … Read more