number of traits covering common microcontroller peripherals: • GPIO • PWM • Delay timers • I2C and SPI buses and devices Similar traits for byte streams (e.g. UARTs), CAN buses and RNGs and broken out then implement drivers in terms of these traits, e.g. an accelerometer driver might need an I2C or SPI device instance. • The traits cover using the peripherals but not initialising or configuring them interrupciones genérico (GIC) de Arm. • Utiliza la interrupción de RTC, que está conectada al GIC como IntId::spi(2). • Después de habilitar la interrupción, puedes poner el núcleo en suspensión mediante arm_gic::wfi()