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Introduction to RTOS Part 4 – Memory Management | Digi-Key Electronics

Memory monitoring is essential in a multi-threaded atmosphere, as threads (or tasks) can rapidly take in every one of the alloted memory, triggering bizarre results such as overwritten memory areas or arbitrary processor resets.

The service to the difficulty in the video can be discovered here: https://www.digikey.com/en/maker/projects/introduction-to-rtos-solution-to-part-4-memory-management/6d4dfcaa1ff84f57a2098da8e6401d9c

In this video clip, we consider various methods to allot memory to a task and how to keep track of memory use in FreeRTOS.

The majority of C programs count on 3 various types of memory. Static memory is set apart prior to program implementation and made use of for points like static variables, constants, and global variables. Heap is enabled to expand dynamically and includes neighborhood variables stated at the feature degree. Ultimately, load may likewise expand dynamically and have to be especially allocated and also deallocated by the designer (e.g. making use of the malloc() and totally free() functions, respectively).

Whenever we develop a brand-new job in FreeRTOS, we have to designate it a collection amount of stack memory to use out of the global, available stack. Note that each task also needs one more area of heap for the Task Control Block (TCB), which stores various attributes concerning the job, such as its state and also priority.

We show ways to keep an eye on the pile in each string as well as the complete amount of load readily available to the system. When you overwhelm the pile or heap, we also reveal what occurs!

Product Links:
https://www.digikey.com/en/products/detail/adafruit-industries-llc/3405/7244967

Associated Videos:
Introduction to RTOS Part 1 – What is a Real-Time Operating System (RTOS)? – https://youtu.be/F321087yYy4

Introduction to RTOS Part 2 – Getting Started with FreeRTOS – https://youtu.be/JIr7Xm_riRs

Introduction to RTOS Part 3 – Task Scheduling – https://youtu.be/95yUbClyf3E

Introduction to RTOS Part 4 – Memory Management – https://youtu.be/Qske3yZRW5I

Related Project Links:
https://www.digikey.com/en/maker/projects/introduction-to-rtos-solution-to-part-4-memory-management/6d4dfcaa1ff84f57a2098da8e6401d9c

Related Articles:
https://www.digikey.com/en/maker/videos/shawn-hymel/getting-started-with-stm32-and-nucleo-part-3-how-to-run-multiple-threads-with-cmsis-rtos-interface

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