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Published on Mar 24, 2012
Demonstration of interrupts generation and handling on the STM32F103VE 32-bit MCU by ST Microelectronics that leverages the ARM Cortex M3 architecture. A pair of user buttons are programmed to generate interrupts on the EXTI lines. The corresponding interrupts service routines (ISR) are invoked to handle the leds, turning them on and off via the GPIO ports to which they are connected to. It is bare metal software (no OS) programmed in ARM Thumb2 assembly language and C routines.