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Add HW DTR support (port of #2994) #3796

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3c7307f
Add HW DTR support (port of #2994)
Jul 15, 2025
359d219
Use metadata to define LP peripheral FIFO sizes (#3812)
bugadani Jul 17, 2025
5b28042
Add inverted polarity option
Jul 18, 2025
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56 changes: 55 additions & 1 deletion esp-hal/src/uart/mod.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -471,6 +471,7 @@

let rts_pin = PinGuard::new_unconnected();
let tx_pin = PinGuard::new_unconnected();
let dtr_pin = PinGuard::new_unconnected();

let mut serial = Uart {
rx: UartRx {
Expand All @@ -486,6 +487,7 @@
mem_guard,
rts_pin,
tx_pin,
dtr_pin,
baudrate: config.baudrate,
},
};
Expand Down Expand Up @@ -524,6 +526,7 @@
mem_guard: MemoryGuard<'d>,
rts_pin: PinGuard,
tx_pin: PinGuard,
dtr_pin: PinGuard,
baudrate: u32,
}

Expand Down Expand Up @@ -670,6 +673,7 @@
mem_guard: self.mem_guard,
rts_pin: self.rts_pin,
tx_pin: self.tx_pin,
dtr_pin: self.dtr_pin,
baudrate: self.baudrate,
}
}
Expand All @@ -694,6 +698,7 @@
mem_guard: self.mem_guard,
rts_pin: self.rts_pin,
tx_pin: self.tx_pin,
dtr_pin: self.dtr_pin,
baudrate: self.baudrate,
}
}
Expand Down Expand Up @@ -778,6 +783,25 @@
self
}

/// Configure DTR pin
#[instability::unstable]
pub fn with_dtr(mut self, dtr: impl PeripheralOutput<'d>) -> Self {
let dtr = dtr.into();

dtr.apply_output_config(&OutputConfig::default());
dtr.set_output_enable(true);

self.dtr_pin = dtr.connect_with_guard(self.uart.info().dtr_signal);

self
}

/// Enable RS485 mode
pub fn with_rs485(self) -> Self {
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@bugadani bugadani Jul 15, 2025

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  • needs to be unstable (if you keep it)
  • should be called into_rs485 and there is no way to disable it, either (if you keep it).
  • Maybe this function should be turned into a Config struct field? All other configuration is set there.
  • I'm still not sure we want to shoehorn RS485 into the main UART driver. Given that this is pretty minor and also unstable, maybe we can, for now.

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@MabezDev MabezDev Jul 15, 2025

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Maybe this function should be turned into a Config struct field? All other configuration is set there.

I don't know nearly enough about rs485, but I think I agree here. Especially when you think about how to turn it off. We already have options, like hardware flow control, which have a config setting and require pins to be passed. I think we should follow this pattern.

I'm still not sure we want to shoehorn RS485 into the main UART driver. Given that this is pretty minor and also unstable, maybe we can, for now.

I agree, that we can experiment with this as an unstable API and figure out if it needs to be a separate driver.

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@bugadani bugadani Jul 15, 2025

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Okay apparently DTR/DSR are not available in the hardware

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@i404788 i404788 Jul 15, 2025

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All fair points, I'm currently still testing it out after porting #2994. I think putting it in the Uart driver makes sense given the reference manual, but I'm not against something like an Rs485<'a, T: Uart> but either way you need to access the Uart registers.

self.regs().rs485_conf().write(|w| w.rs485_en().set_bit());
self
}

/// Assign the TX pin for UART instance.
///
/// Sets the specified pin to push-pull output and connects it to the UART
Expand Down Expand Up @@ -1261,6 +1285,18 @@
sync_regs(self.regs());
}

/// Inverts polarity of RX signal if `invertedd`
#[instability::unstable]
pub fn with_polarity(self, inverted: bool) -> Self {
self.uart
.info()
.regs()
.conf0()
.modify(|_, w| w.rxd_inv().bit(inverted));

self
}

/// Change the configuration.
///
/// ## Errors
Expand Down Expand Up @@ -1793,6 +1829,20 @@
self
}

/// Configure DTR pin
#[instability::unstable]
pub fn with_dtr(mut self, dtr: impl PeripheralOutput<'d>) -> Self {
self.tx = self.tx.with_dtr(dtr);
self
}

/// Enable RS485 mode
#[instability::unstable]
pub fn with_rs485(mut self) -> Self {
self.tx = self.tx.with_rs485();
self
}

fn regs(&self) -> &RegisterBlock {
// `self.tx.uart` and `self.rx.uart` are the same
self.tx.uart.info().regs()
Expand Down Expand Up @@ -2925,6 +2975,9 @@

/// RTS (Request to Send) pin
pub rts_signal: OutputSignal,

/// DTR (Data Terminal Ready) pin
pub dtr_signal: OutputSignal,
}

/// Peripheral state for a UART instance.
Expand Down Expand Up @@ -3678,8 +3731,8 @@

unsafe impl Sync for Info {}

for_each_uart! {

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($inst:ident, $peri:ident, $rxd:ident, $txd:ident, $cts:ident, $rts:ident) => {
($inst:ident, $peri:ident, $rxd:ident, $txd:ident, $cts:ident, $rts:ident, $dtr:ident) => {
impl Instance for crate::peripherals::$inst<'_> {
fn parts(&self) -> (&'static Info, &'static State) {
#[crate::handler]
Expand All @@ -3704,6 +3757,7 @@
rx_signal: InputSignal::$rxd,
cts_signal: InputSignal::$cts,
rts_signal: OutputSignal::$rts,
dtr_signal: OutputSignal::$dtr,
};
(&PERIPHERAL, &STATE)
}
Expand Down
1 change: 1 addition & 0 deletions esp-lp-hal/CHANGELOG.md
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Expand Up @@ -15,6 +15,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0

### Fixed

- Fixed size of LP_UART's RAM block (#3812)

### Removed

Expand Down
13 changes: 7 additions & 6 deletions esp-metadata-generated/src/_generated_esp32.rs
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Expand Up @@ -2208,17 +2208,18 @@ macro_rules! for_each_i2c_master {
/// - `$sys`: the name of the instance as it is in the `esp_hal::system::Peripheral` enum.
/// - `$rx`, `$tx`, `$cts`, `$rts`: signal names.
///
/// Example data: `(UART0, Uart0, U0RXD, U0TXD, U0CTS, U0RTS)`
/// Example data: `(UART0, Uart0, U0RXD, U0TXD, U0CTS, U0RTS, U0DTR)`
#[macro_export]
#[cfg_attr(docsrs, doc(cfg(feature = "_device-selected")))]
macro_rules! for_each_uart {
($($pattern:tt => $code:tt;)*) => {
macro_rules! _for_each_inner { $(($pattern) => $code;)* ($other : tt) => {} }
_for_each_inner!((UART0, Uart0, U0RXD, U0TXD, U0CTS, U0RTS));
_for_each_inner!((UART1, Uart1, U1RXD, U1TXD, U1CTS, U1RTS));
_for_each_inner!((UART2, Uart2, U2RXD, U2TXD, U2CTS, U2RTS));
_for_each_inner!((all(UART0, Uart0, U0RXD, U0TXD, U0CTS, U0RTS), (UART1, Uart1,
U1RXD, U1TXD, U1CTS, U1RTS), (UART2, Uart2, U2RXD, U2TXD, U2CTS, U2RTS)));
_for_each_inner!((UART0, Uart0, U0RXD, U0TXD, U0CTS, U0RTS, U0DTR));
_for_each_inner!((UART1, Uart1, U1RXD, U1TXD, U1CTS, U1RTS, U1DTR));
_for_each_inner!((UART2, Uart2, U2RXD, U2TXD, U2CTS, U2RTS, U2DTR));
_for_each_inner!((all(UART0, Uart0, U0RXD, U0TXD, U0CTS, U0RTS, U0DTR), (UART1,
Uart1, U1RXD, U1TXD, U1CTS, U1RTS, U1DTR), (UART2, Uart2, U2RXD, U2TXD, U2CTS,
U2RTS, U2DTR)));
};
}
/// This macro can be used to generate code for each peripheral instance of the SPI master driver.
Expand Down
10 changes: 5 additions & 5 deletions esp-metadata-generated/src/_generated_esp32c2.rs
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Expand Up @@ -1766,16 +1766,16 @@ macro_rules! for_each_i2c_master {
/// - `$sys`: the name of the instance as it is in the `esp_hal::system::Peripheral` enum.
/// - `$rx`, `$tx`, `$cts`, `$rts`: signal names.
///
/// Example data: `(UART0, Uart0, U0RXD, U0TXD, U0CTS, U0RTS)`
/// Example data: `(UART0, Uart0, U0RXD, U0TXD, U0CTS, U0RTS, U0DTR)`
#[macro_export]
#[cfg_attr(docsrs, doc(cfg(feature = "_device-selected")))]
macro_rules! for_each_uart {
($($pattern:tt => $code:tt;)*) => {
macro_rules! _for_each_inner { $(($pattern) => $code;)* ($other : tt) => {} }
_for_each_inner!((UART0, Uart0, U0RXD, U0TXD, U0CTS, U0RTS));
_for_each_inner!((UART1, Uart1, U1RXD, U1TXD, U1CTS, U1RTS));
_for_each_inner!((all(UART0, Uart0, U0RXD, U0TXD, U0CTS, U0RTS), (UART1, Uart1,
U1RXD, U1TXD, U1CTS, U1RTS)));
_for_each_inner!((UART0, Uart0, U0RXD, U0TXD, U0CTS, U0RTS, U0DTR));
_for_each_inner!((UART1, Uart1, U1RXD, U1TXD, U1CTS, U1RTS, U1DTR));
_for_each_inner!((all(UART0, Uart0, U0RXD, U0TXD, U0CTS, U0RTS, U0DTR), (UART1,
Uart1, U1RXD, U1TXD, U1CTS, U1RTS, U1DTR)));
};
}
/// This macro can be used to generate code for each peripheral instance of the SPI master driver.
Expand Down
10 changes: 5 additions & 5 deletions esp-metadata-generated/src/_generated_esp32c3.rs
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Expand Up @@ -2139,16 +2139,16 @@ macro_rules! for_each_i2c_master {
/// - `$sys`: the name of the instance as it is in the `esp_hal::system::Peripheral` enum.
/// - `$rx`, `$tx`, `$cts`, `$rts`: signal names.
///
/// Example data: `(UART0, Uart0, U0RXD, U0TXD, U0CTS, U0RTS)`
/// Example data: `(UART0, Uart0, U0RXD, U0TXD, U0CTS, U0RTS, U0DTR)`
#[macro_export]
#[cfg_attr(docsrs, doc(cfg(feature = "_device-selected")))]
macro_rules! for_each_uart {
($($pattern:tt => $code:tt;)*) => {
macro_rules! _for_each_inner { $(($pattern) => $code;)* ($other : tt) => {} }
_for_each_inner!((UART0, Uart0, U0RXD, U0TXD, U0CTS, U0RTS));
_for_each_inner!((UART1, Uart1, U1RXD, U1TXD, U1CTS, U1RTS));
_for_each_inner!((all(UART0, Uart0, U0RXD, U0TXD, U0CTS, U0RTS), (UART1, Uart1,
U1RXD, U1TXD, U1CTS, U1RTS)));
_for_each_inner!((UART0, Uart0, U0RXD, U0TXD, U0CTS, U0RTS, U0DTR));
_for_each_inner!((UART1, Uart1, U1RXD, U1TXD, U1CTS, U1RTS, U1DTR));
_for_each_inner!((all(UART0, Uart0, U0RXD, U0TXD, U0CTS, U0RTS, U0DTR), (UART1,
Uart1, U1RXD, U1TXD, U1CTS, U1RTS, U1DTR)));
};
}
/// This macro can be used to generate code for each peripheral instance of the SPI master driver.
Expand Down
10 changes: 5 additions & 5 deletions esp-metadata-generated/src/_generated_esp32c6.rs
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Expand Up @@ -2717,16 +2717,16 @@ macro_rules! for_each_i2c_master {
/// - `$sys`: the name of the instance as it is in the `esp_hal::system::Peripheral` enum.
/// - `$rx`, `$tx`, `$cts`, `$rts`: signal names.
///
/// Example data: `(UART0, Uart0, U0RXD, U0TXD, U0CTS, U0RTS)`
/// Example data: `(UART0, Uart0, U0RXD, U0TXD, U0CTS, U0RTS, U0DTR)`
#[macro_export]
#[cfg_attr(docsrs, doc(cfg(feature = "_device-selected")))]
macro_rules! for_each_uart {
($($pattern:tt => $code:tt;)*) => {
macro_rules! _for_each_inner { $(($pattern) => $code;)* ($other : tt) => {} }
_for_each_inner!((UART0, Uart0, U0RXD, U0TXD, U0CTS, U0RTS));
_for_each_inner!((UART1, Uart1, U1RXD, U1TXD, U1CTS, U1RTS));
_for_each_inner!((all(UART0, Uart0, U0RXD, U0TXD, U0CTS, U0RTS), (UART1, Uart1,
U1RXD, U1TXD, U1CTS, U1RTS)));
_for_each_inner!((UART0, Uart0, U0RXD, U0TXD, U0CTS, U0RTS, U0DTR));
_for_each_inner!((UART1, Uart1, U1RXD, U1TXD, U1CTS, U1RTS, U1DTR));
_for_each_inner!((all(UART0, Uart0, U0RXD, U0TXD, U0CTS, U0RTS, U0DTR), (UART1,
Uart1, U1RXD, U1TXD, U1CTS, U1RTS, U1DTR)));
};
}
/// This macro can be used to generate code for each peripheral instance of the SPI master driver.
Expand Down
10 changes: 5 additions & 5 deletions esp-metadata-generated/src/_generated_esp32h2.rs
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Expand Up @@ -950,16 +950,16 @@ macro_rules! for_each_i2c_master {
/// - `$sys`: the name of the instance as it is in the `esp_hal::system::Peripheral` enum.
/// - `$rx`, `$tx`, `$cts`, `$rts`: signal names.
///
/// Example data: `(UART0, Uart0, U0RXD, U0TXD, U0CTS, U0RTS)`
/// Example data: `(UART0, Uart0, U0RXD, U0TXD, U0CTS, U0RTS, U0DTR)`
#[macro_export]
#[cfg_attr(docsrs, doc(cfg(feature = "_device-selected")))]
macro_rules! for_each_uart {
($($pattern:tt => $code:tt;)*) => {
macro_rules! _for_each_inner { $(($pattern) => $code;)* ($other : tt) => {} }
_for_each_inner!((UART0, Uart0, U0RXD, U0TXD, U0CTS, U0RTS));
_for_each_inner!((UART1, Uart1, U1RXD, U1TXD, U1CTS, U1RTS));
_for_each_inner!((all(UART0, Uart0, U0RXD, U0TXD, U0CTS, U0RTS), (UART1, Uart1,
U1RXD, U1TXD, U1CTS, U1RTS)));
_for_each_inner!((UART0, Uart0, U0RXD, U0TXD, U0CTS, U0RTS, U0DTR));
_for_each_inner!((UART1, Uart1, U1RXD, U1TXD, U1CTS, U1RTS, U1DTR));
_for_each_inner!((all(UART0, Uart0, U0RXD, U0TXD, U0CTS, U0RTS, U0DTR), (UART1,
Uart1, U1RXD, U1TXD, U1CTS, U1RTS, U1DTR)));
};
}
/// This macro can be used to generate code for each peripheral instance of the SPI master driver.
Expand Down
10 changes: 5 additions & 5 deletions esp-metadata-generated/src/_generated_esp32s2.rs
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Expand Up @@ -1002,16 +1002,16 @@ macro_rules! for_each_i2c_master {
/// - `$sys`: the name of the instance as it is in the `esp_hal::system::Peripheral` enum.
/// - `$rx`, `$tx`, `$cts`, `$rts`: signal names.
///
/// Example data: `(UART0, Uart0, U0RXD, U0TXD, U0CTS, U0RTS)`
/// Example data: `(UART0, Uart0, U0RXD, U0TXD, U0CTS, U0RTS, U0DTR)`
#[macro_export]
#[cfg_attr(docsrs, doc(cfg(feature = "_device-selected")))]
macro_rules! for_each_uart {
($($pattern:tt => $code:tt;)*) => {
macro_rules! _for_each_inner { $(($pattern) => $code;)* ($other : tt) => {} }
_for_each_inner!((UART0, Uart0, U0RXD, U0TXD, U0CTS, U0RTS));
_for_each_inner!((UART1, Uart1, U1RXD, U1TXD, U1CTS, U1RTS));
_for_each_inner!((all(UART0, Uart0, U0RXD, U0TXD, U0CTS, U0RTS), (UART1, Uart1,
U1RXD, U1TXD, U1CTS, U1RTS)));
_for_each_inner!((UART0, Uart0, U0RXD, U0TXD, U0CTS, U0RTS, U0DTR));
_for_each_inner!((UART1, Uart1, U1RXD, U1TXD, U1CTS, U1RTS, U1DTR));
_for_each_inner!((all(UART0, Uart0, U0RXD, U0TXD, U0CTS, U0RTS, U0DTR), (UART1,
Uart1, U1RXD, U1TXD, U1CTS, U1RTS, U1DTR)));
};
}
/// This macro can be used to generate code for each peripheral instance of the SPI master driver.
Expand Down
13 changes: 7 additions & 6 deletions esp-metadata-generated/src/_generated_esp32s3.rs
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Expand Up @@ -1017,17 +1017,18 @@ macro_rules! for_each_i2c_master {
/// - `$sys`: the name of the instance as it is in the `esp_hal::system::Peripheral` enum.
/// - `$rx`, `$tx`, `$cts`, `$rts`: signal names.
///
/// Example data: `(UART0, Uart0, U0RXD, U0TXD, U0CTS, U0RTS)`
/// Example data: `(UART0, Uart0, U0RXD, U0TXD, U0CTS, U0RTS, U0DTR)`
#[macro_export]
#[cfg_attr(docsrs, doc(cfg(feature = "_device-selected")))]
macro_rules! for_each_uart {
($($pattern:tt => $code:tt;)*) => {
macro_rules! _for_each_inner { $(($pattern) => $code;)* ($other : tt) => {} }
_for_each_inner!((UART0, Uart0, U0RXD, U0TXD, U0CTS, U0RTS));
_for_each_inner!((UART1, Uart1, U1RXD, U1TXD, U1CTS, U1RTS));
_for_each_inner!((UART2, Uart2, U2RXD, U2TXD, U2CTS, U2RTS));
_for_each_inner!((all(UART0, Uart0, U0RXD, U0TXD, U0CTS, U0RTS), (UART1, Uart1,
U1RXD, U1TXD, U1CTS, U1RTS), (UART2, Uart2, U2RXD, U2TXD, U2CTS, U2RTS)));
_for_each_inner!((UART0, Uart0, U0RXD, U0TXD, U0CTS, U0RTS, U0DTR));
_for_each_inner!((UART1, Uart1, U1RXD, U1TXD, U1CTS, U1RTS, U1DTR));
_for_each_inner!((UART2, Uart2, U2RXD, U2TXD, U2CTS, U2RTS, U2DTR));
_for_each_inner!((all(UART0, Uart0, U0RXD, U0TXD, U0CTS, U0RTS, U0DTR), (UART1,
Uart1, U1RXD, U1TXD, U1CTS, U1RTS, U1DTR), (UART2, Uart2, U2RXD, U2TXD, U2CTS,
U2RTS, U2DTR)));
};
}
/// This macro can be used to generate code for each peripheral instance of the SPI master driver.
Expand Down
6 changes: 3 additions & 3 deletions esp-metadata/devices/esp32.toml
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Expand Up @@ -820,9 +820,9 @@ instances = [{ name = "timg0" }, { name = "timg1" }]
[device.uart]
support_status = "supported"
instances = [
{ name = "uart0", sys_instance = "Uart0", tx = "U0TXD", rx = "U0RXD", cts = "U0CTS", rts = "U0RTS" },
{ name = "uart1", sys_instance = "Uart1", tx = "U1TXD", rx = "U1RXD", cts = "U1CTS", rts = "U1RTS" },
{ name = "uart2", sys_instance = "Uart2", tx = "U2TXD", rx = "U2RXD", cts = "U2CTS", rts = "U2RTS" },
{ name = "uart0", sys_instance = "Uart0", tx = "U0TXD", rx = "U0RXD", cts = "U0CTS", rts = "U0RTS", dtr = "U0DTR" },
{ name = "uart1", sys_instance = "Uart1", tx = "U1TXD", rx = "U1RXD", cts = "U1CTS", rts = "U1RTS", dtr = "U1DTR" },
{ name = "uart2", sys_instance = "Uart2", tx = "U2TXD", rx = "U2RXD", cts = "U2CTS", rts = "U2RTS", dtr = "U2DTR" },
]
ram_size = 128

Expand Down
4 changes: 2 additions & 2 deletions esp-metadata/devices/esp32c2.toml
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Expand Up @@ -390,8 +390,8 @@ default_wdt_clock_source = 0 # use_wdt_xtal = false
[device.uart]
support_status = "supported"
instances = [
{ name = "uart0", sys_instance = "Uart0", tx = "U0TXD", rx = "U0RXD", cts = "U0CTS", rts = "U0RTS" },
{ name = "uart1", sys_instance = "Uart1", tx = "U1TXD", rx = "U1RXD", cts = "U1CTS", rts = "U1RTS" },
{ name = "uart0", sys_instance = "Uart0", tx = "U0TXD", rx = "U0RXD", cts = "U0CTS", rts = "U0RTS", dtr = "U0DTR" },
{ name = "uart1", sys_instance = "Uart1", tx = "U1TXD", rx = "U1RXD", cts = "U1CTS", rts = "U1RTS", dtr = "U1DTR" },
]
ram_size = 128

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4 changes: 2 additions & 2 deletions esp-metadata/devices/esp32c3.toml
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Original file line number Diff line number Diff line change
Expand Up @@ -463,8 +463,8 @@ default_wdt_clock_source = 0 # use_wdt_xtal = false
[device.uart]
support_status = "supported"
instances = [
{ name = "uart0", sys_instance = "Uart0", tx = "U0TXD", rx = "U0RXD", cts = "U0CTS", rts = "U0RTS" },
{ name = "uart1", sys_instance = "Uart1", tx = "U1TXD", rx = "U1RXD", cts = "U1CTS", rts = "U1RTS" },
{ name = "uart0", sys_instance = "Uart0", tx = "U0TXD", rx = "U0RXD", cts = "U0CTS", rts = "U0RTS", dtr = "U0DTR" },
{ name = "uart1", sys_instance = "Uart1", tx = "U1TXD", rx = "U1RXD", cts = "U1CTS", rts = "U1RTS", dtr = "U1DTR" },
]
ram_size = 128

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4 changes: 2 additions & 2 deletions esp-metadata/devices/esp32c6.toml
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Original file line number Diff line number Diff line change
Expand Up @@ -644,8 +644,8 @@ default_wdt_clock_source = 1
[device.uart]
support_status = "supported"
instances = [
{ name = "uart0", sys_instance = "Uart0", tx = "U0TXD", rx = "U0RXD", cts = "U0CTS", rts = "U0RTS" },
{ name = "uart1", sys_instance = "Uart1", tx = "U1TXD", rx = "U1RXD", cts = "U1CTS", rts = "U1RTS" },
{ name = "uart0", sys_instance = "Uart0", tx = "U0TXD", rx = "U0RXD", cts = "U0CTS", rts = "U0RTS", dtr = "U0DTR" },
{ name = "uart1", sys_instance = "Uart1", tx = "U1TXD", rx = "U1RXD", cts = "U1CTS", rts = "U1RTS", dtr = "U1DTR" },
]
ram_size = 128
peripheral_controls_mem_clk = true
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4 changes: 2 additions & 2 deletions esp-metadata/devices/esp32h2.toml
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Original file line number Diff line number Diff line change
Expand Up @@ -477,8 +477,8 @@ default_wdt_clock_source = 2
[device.uart]
support_status = "supported"
instances = [
{ name = "uart0", sys_instance = "Uart0", tx = "U0TXD", rx = "U0RXD", cts = "U0CTS", rts = "U0RTS" },
{ name = "uart1", sys_instance = "Uart1", tx = "U1TXD", rx = "U1RXD", cts = "U1CTS", rts = "U1RTS" },
{ name = "uart0", sys_instance = "Uart0", tx = "U0TXD", rx = "U0RXD", cts = "U0CTS", rts = "U0RTS", dtr = "U0DTR" },
{ name = "uart1", sys_instance = "Uart1", tx = "U1TXD", rx = "U1RXD", cts = "U1CTS", rts = "U1RTS", dtr = "U1DTR" },
]
ram_size = 128
peripheral_controls_mem_clk = true
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4 changes: 2 additions & 2 deletions esp-metadata/devices/esp32s2.toml
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Original file line number Diff line number Diff line change
Expand Up @@ -529,8 +529,8 @@ default_clock_source = 0 # use_xtal = false
[device.uart]
support_status = "supported"
instances = [
{ name = "uart0", sys_instance = "Uart0", tx = "U0TXD", rx = "U0RXD", cts = "U0CTS", rts = "U0RTS" },
{ name = "uart1", sys_instance = "Uart1", tx = "U1TXD", rx = "U1RXD", cts = "U1CTS", rts = "U1RTS" },
{ name = "uart0", sys_instance = "Uart0", tx = "U0TXD", rx = "U0RXD", cts = "U0CTS", rts = "U0RTS", dtr = "U0DTR" },
{ name = "uart1", sys_instance = "Uart1", tx = "U1TXD", rx = "U1RXD", cts = "U1CTS", rts = "U1RTS", dtr = "U1DTR" },
]
ram_size = 128

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6 changes: 3 additions & 3 deletions esp-metadata/devices/esp32s3.toml
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Original file line number Diff line number Diff line change
Expand Up @@ -698,9 +698,9 @@ default_clock_source = 0 # use_xtal = false
[device.uart]
support_status = "supported"
instances = [
{ name = "uart0", sys_instance = "Uart0", tx = "U0TXD", rx = "U0RXD", cts = "U0CTS", rts = "U0RTS" },
{ name = "uart1", sys_instance = "Uart1", tx = "U1TXD", rx = "U1RXD", cts = "U1CTS", rts = "U1RTS" },
{ name = "uart2", sys_instance = "Uart2", tx = "U2TXD", rx = "U2RXD", cts = "U2CTS", rts = "U2RTS" },
{ name = "uart0", sys_instance = "Uart0", tx = "U0TXD", rx = "U0RXD", cts = "U0CTS", rts = "U0RTS", dtr = "U0DTR" },
{ name = "uart1", sys_instance = "Uart1", tx = "U1TXD", rx = "U1RXD", cts = "U1CTS", rts = "U1RTS", dtr = "U1DTR" },
{ name = "uart2", sys_instance = "Uart2", tx = "U2TXD", rx = "U2RXD", cts = "U2CTS", rts = "U2RTS", dtr = "U2DTR" },
]
ram_size = 128

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