Function stm32f3xx_hal_v2::exti::setup_gpio

pub fn setup_gpio(syscfg: &mut SYSCFG, gpio_reg: GpioReg, line: u8)

Configure a GPIO to work with an interrupt line. The line parameter corresponds to both the interrupt line, and the GPIO number. Eg, 3 means line3, and px3. Reference man section 12.1.3 of the datasheet for a breakdown by CR and line.