FreeRTOS_Count_Semaphore

STM32 FreeRTOS Counting Semaphore Tasks Demo

Quick Start

STM32CubeIDE

1. Clone repo → Open .ioc file
2. Build → Flash to STM32 board
3. Open UART terminal (115200 baud)
4. Watch producer/consumer synchronization

Features

✓ Proper semaphore initialization/cleanup ✓ Task priority inheritance awareness ✓ Infinite timeout handling (portMAX_DELAY) ✓ Stack overflow protection ✓ Deadlock prevention ✓ ISR-safe semaphore operations ✓ Configurable semaphore max count

Build Target

Default (optimized)

make all

Debug build

make DEBUG=1

Different MCU

make MCU=STM32F103RB

Expected Terminal Output

Producer Task1: Semaphore given (count=1) Producer Task2: Semaphore given (count=2) Producer Task3: Semaphore given (count=3) Consumer Task: Processing resource 1 Consumer Task: Processing resource 2 Consumer Task: Processing resource 3 Producer Task1: BLOCKED (max count reached) [Tasks continue cycling...]