FreeRTOS button and LED controller

An LPC2129/ARM7 coursework application that uses two FreeRTOS tasks to sample a push button and control an LED. The duration of the button press selects off, slow-toggle, or fast-toggle behavior.

RTOS design

• App_Getpushbuttonstate samples the button every 100 ms and classifies the completed press by duration.
• App_ToggleLed applies the selected LED state and toggle rate.
• Both tasks run under the FreeRTOS scheduler and interact through the shared application state App_u8ToggleRate.
• GPIO and serial initialization are performed before the scheduler starts.

Target and dependencies

• LPC2129 ARM7 target
• FreeRTOS 10.2-era LPC2129 Keil demo environment
• Keil project/startup files from the FreeRTOS LPC2129 demo
• The demo's GPIO, serial, and LPC21xx support files

To integrate the exercise, start with the matching FreeRTOS ARM7_LPC2129_Keil_RVDS demo, add main.c and GPIO_cfg.c, and retain the board-specific startup and peripheral support from that demo.

Validation status

This repository preserves an early RTOS exercise rather than a standalone firmware product. The required vendor project, FreeRTOS sources, and board support package are not stored here, and no current hardware or CI validation is claimed.