RealClock FreeRTOS LED Effects

This project showcases a RealClock system with LED effects implemented using FreeRTOS. The Nucleo-f446re microcontroller is utilized, along with a user interface program using UART.

Project Features

• Choose from four different LED effects for four LEDs.
• Set a new time or date.
• Enable time and date reporting, sent to SWV (Serial Wire Viewer) every 1 second.

Project FlowChart

FreeRTOS Task Design

Tasks:

• Command Handle Task: Responsible for receiving user input over UART.
• Display Task: Responsible for displaying messages or menus to the user over UART.
• Main-menu Task: Allows the user to choose system functionalities such as LED Effects and RTC configuration.
• LED Effect Task: Starts the selected LED effect.
• RTC Task: Handles setting the new time and date and enabling reporting.

Queues

• Q_Send: Sends data to UART.
• Q_Receive: Receives data from UART.

Tasks And Interrupt FlowChart

Tasks State Machine Diagrams

Command Handle Task

Display Task

Main-Menu Task

LED Effect Task

RTC Task

Used Peripherals

The project is based on CubeMX HAL Drivers and utilizes the following peripherals:

• UART = RTC
• GPIO
• Systick (FreeRTOS clock base)

Future Improvements

• Set alarms.
• Contribute to the project with SEGGER tool.