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nrf/uarte: deal with hwfc correctly

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This commit is contained in:
Dario Nieuwenhuis 2021-03-28 22:39:09 +02:00
parent b6496a85d8
commit aa0341056e
1 changed files with 14 additions and 4 deletions
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18
embassy-nrf/src/uarte.rs
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@ -11,14 +11,14 @@ use embassy_extras::peripheral_shared::{Peripheral, PeripheralState};
use embassy_extras::unborrow; use embassy_extras::unborrow;
use futures::future::poll_fn; use futures::future::poll_fn;
use crate::fmt::{assert, *}; use crate::fmt::{assert, panic, *};
use crate::gpio::sealed::Pin as _; use crate::gpio::sealed::Pin as _;
use crate::gpio::{OptionalPin as GpioOptionalPin, Pin as GpioPin}; use crate::gpio::{OptionalPin as GpioOptionalPin, Pin as GpioPin};
use crate::hal::pac;
use crate::hal::target_constants::EASY_DMA_SIZE;
use crate::interrupt; use crate::interrupt;
use crate::interrupt::Interrupt; use crate::interrupt::Interrupt;
use crate::pac;
use crate::peripherals; use crate::peripherals;
use crate::target_constants::EASY_DMA_SIZE;
// Re-export SVD variants to allow user to directly set values. // Re-export SVD variants to allow user to directly set values.
pub use pac::uarte0::{baudrate::BAUDRATE_A as Baudrate, config::PARITY_A as Parity}; pub use pac::uarte0::{baudrate::BAUDRATE_A as Baudrate, config::PARITY_A as Parity};
@ -94,8 +94,18 @@ impl<'d, T: Instance> Uarte<'d, T> {
} }
r.psel.rts.write(|w| unsafe { w.bits(rts.psel_bits()) }); r.psel.rts.write(|w| unsafe { w.bits(rts.psel_bits()) });
// Configure
let hardware_flow_control = match (rts.pin().is_some(), cts.pin().is_some()) {
(false, false) => false,
(true, true) => true,
_ => panic!("RTS and CTS pins must be either both set or none set."),
};
r.config.write(|w| {
w.hwfc().bit(hardware_flow_control);
w.parity().variant(config.parity);
w
});
r.baudrate.write(|w| w.baudrate().variant(config.baudrate)); r.baudrate.write(|w| w.baudrate().variant(config.baudrate));
r.config.write(|w| w.parity().variant(config.parity));
// Disable all interrupts // Disable all interrupts
r.intenclr.write(|w| unsafe { w.bits(0xFFFF_FFFF) }); r.intenclr.write(|w| unsafe { w.bits(0xFFFF_FFFF) });