rust/va416xx-rs
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UART embedded-io fixes

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This commit is contained in:
Robin Müller
2025-03-08 00:20:15 +01:00
parent 4455cb0343
commit 6528dd855f
3 changed files with 30 additions and 8 deletions
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27
va416xx-hal/src/uart/mod.rs
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@ -868,7 +868,15 @@ impl<Uart: Instance> embedded_hal_nb::serial::Read<u8> for Rx<Uart> {
impl<Uart: Instance> embedded_io::Read for Rx<Uart> {
fn read(&mut self, buf: &mut [u8]) -> Result<usize, Self::Error> {
if buf.is_empty() {
return Ok(0);
}
let mut read = 0;
loop {
if self.0.rxstatus().read().rdavl().bit_is_set() {
break;
}
}
for byte in buf.iter_mut() {
match <Self as embedded_hal_nb::serial::Read<u8>>::read(self) {
Ok(w) => {
@ -1038,14 +1046,19 @@ impl<Uart: Instance> embedded_io::Write for Tx<Uart> {
if buf.is_empty() {
return Ok(0);
}
for byte in buf.iter() {
nb::block!(<Self as embedded_hal_nb::serial::Write<u8>>::write(
self, *byte
))?;
loop {
if self.0.txstatus().read().wrrdy().bit_is_set() {
break;
}
}
Ok(buf.len())
let mut written = 0;
for byte in buf.iter() {
match <Self as embedded_hal_nb::serial::Write<u8>>::write(self, *byte) {
Ok(_) => written += 1,
Err(nb::Error::WouldBlock) => return Ok(written),
}
}
Ok(written)
}
fn flush(&mut self) -> Result<(), Self::Error> {