How different is programming with an RTOS compared to traditional bare-metal coding on an AVR?

Hey guys, I'm getting comfortable with basic AVR projects using I/O pins. I recently came across the idea of using an RTOS on microcontrollers. How different is programming with an RTOS like FreeRTOS compared to traditional bare-metal coding on an AVR? What are some key concepts I should focus on to understand how an RTOS manages hardware and interacts with my application code?

@Middleware & OS

Solution

Rtos is different from bare metal

RTOS: Scheduler manages tasks, hardware abstraction, multitasking, and synchronization.
Bare-Metal: Direct hardware manipulation, no scheduler, total control.

Focus on:

Tasks and scheduling
Hardware abstraction
Synchronization and communication
Memory management
Interrupt handling

Start with simple examples, understand the architecture.

Jump to solution

Solution

Joseph Ogbonna•6/26/24, 8:17 AM

Rtos is different from bare metal

RTOS: Scheduler manages tasks, hardware abstraction, multitasking, and synchronization.
Bare-Metal: Direct hardware manipulation, no scheduler, total control.

Focus on:

Tasks and scheduling
Hardware abstraction
Synchronization and communication
Memory management
Interrupt handling

Start with simple examples, understand the architecture.