Trait Pins
stm32l1xx_hal::serial
pub trait Pins<USART> { fn setup(&self); }
fn setup(&self)
impl Pins<USART1> for (PA9<Input<Floating>>, PA10<Input<Floating>>)
impl Pins<USART2> for (PA2<Input<Floating>>, PA3<Input<Floating>>)
impl Pins<USART3> for (PB10<Input<Floating>>, PB11<Input<Floating>>)