use crate::pac::{RCC, USB};
use stm32_usbd::UsbPeripheral;
use crate::gpio::gpioa::{PA11, PA12};
use crate::gpio::{Floating, Input};
pub use stm32_usbd::UsbBus;
pub struct Peripheral {
pub usb: USB,
pub pin_dm: PA11<Input<Floating>>,
pub pin_dp: PA12<Input<Floating>>,
}
unsafe impl Sync for Peripheral {}
unsafe impl UsbPeripheral for Peripheral {
const REGISTERS: *const () = USB::ptr() as *const ();
const DP_PULL_UP_FEATURE: bool = false;
const EP_MEMORY: *const () = 0x4000_6000 as _;
const EP_MEMORY_SIZE: usize = 512;
fn enable() {
let rcc = unsafe { (&*RCC::ptr()) };
cortex_m::interrupt::free(|_| {
rcc.apb1enr.modify(|_, w| w.usben().set_bit());
rcc.apb1rstr.modify(|_, w| w.usbrst().set_bit());
rcc.apb1rstr.modify(|_, w| w.usbrst().clear_bit());
});
}
fn startup_delay() {
cortex_m::asm::delay(72);
}
}
pub type UsbBusType = UsbBus<Peripheral>;