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/// Power amplifier ramp time for FSK, MSK, and LoRa modulation.
///
/// Argument of [`set_ramp_time`][`super::TxParams::set_ramp_time`].
#[derive(Debug, PartialEq, Eq, PartialOrd, Ord)]
#[cfg_attr(feature = "defmt", derive(defmt::Format))]
#[repr(u8)]
pub enum RampTime {
/// 10µs
Micros10 = 0x00,
/// 20µs
Micros20 = 0x01,
/// 40µs
Micros40 = 0x02,
/// 80µs
Micros80 = 0x03,
/// 200µs
Micros200 = 0x04,
/// 800µs
Micros800 = 0x05,
/// 1.7ms
Micros1700 = 0x06,
/// 3.4ms
Micros3400 = 0x07,
}
impl From<RampTime> for u8 {
fn from(rt: RampTime) -> Self {
rt as u8
}
}
impl From<RampTime> for core::time::Duration {
fn from(rt: RampTime) -> Self {
match rt {
RampTime::Micros10 => core::time::Duration::from_micros(10),
RampTime::Micros20 => core::time::Duration::from_micros(20),
RampTime::Micros40 => core::time::Duration::from_micros(40),
RampTime::Micros80 => core::time::Duration::from_micros(80),
RampTime::Micros200 => core::time::Duration::from_micros(200),
RampTime::Micros800 => core::time::Duration::from_micros(800),
RampTime::Micros1700 => core::time::Duration::from_micros(1700),
RampTime::Micros3400 => core::time::Duration::from_micros(3400),
}
}
}
#[cfg(feature = "embedded_time")]
impl From<RampTime> for embedded_time::duration::Microseconds {
fn from(rt: RampTime) -> Self {
match rt {
RampTime::Micros10 => embedded_time::duration::Microseconds(10),
RampTime::Micros20 => embedded_time::duration::Microseconds(20),
RampTime::Micros40 => embedded_time::duration::Microseconds(40),
RampTime::Micros80 => embedded_time::duration::Microseconds(80),
RampTime::Micros200 => embedded_time::duration::Microseconds(200),
RampTime::Micros800 => embedded_time::duration::Microseconds(800),
RampTime::Micros1700 => embedded_time::duration::Microseconds(1700),
RampTime::Micros3400 => embedded_time::duration::Microseconds(3400),
}
}
}
/// Transmit parameters, output power and power amplifier ramp up time.
///
/// Argument of [`set_tx_params`][`super::SubGhz::set_tx_params`].
#[derive(Debug, PartialEq, Eq, Clone, Copy)]
#[cfg_attr(feature = "defmt", derive(defmt::Format))]
pub struct TxParams {
buf: [u8; 3],
}
impl TxParams {
/// Optimal power setting for +15dBm output power with the low-power PA.
///
/// This must be used with [`PaConfig::LP_15`](super::PaConfig::LP_15).
pub const LP_15: TxParams = TxParams::new().set_power(0x0E);
/// Optimal power setting for +14dBm output power with the low-power PA.
///
/// This must be used with [`PaConfig::LP_14`](super::PaConfig::LP_14).
pub const LP_14: TxParams = TxParams::new().set_power(0x0E);
/// Optimal power setting for +10dBm output power with the low-power PA.
///
/// This must be used with [`PaConfig::LP_10`](super::PaConfig::LP_10).
pub const LP_10: TxParams = TxParams::new().set_power(0x0D);
/// Optimal power setting for the high-power PA.
///
/// This must be used with one of:
///
/// * [`PaConfig::HP_22`](super::PaConfig::HP_22)
/// * [`PaConfig::HP_20`](super::PaConfig::HP_20)
/// * [`PaConfig::HP_17`](super::PaConfig::HP_17)
/// * [`PaConfig::HP_14`](super::PaConfig::HP_14)
pub const HP: TxParams = TxParams::new().set_power(0x16);
/// Create a new `TxParams` struct.
///
/// This is the same as `default`, but in a `const` function.
///
/// # Example
///
/// ```
/// use stm32wlxx_hal::subghz::TxParams;
///
/// const TX_PARAMS: TxParams = TxParams::new();
/// assert_eq!(TX_PARAMS, TxParams::default());
/// ```
pub const fn new() -> TxParams {
TxParams {
buf: [super::OpCode::SetTxParams as u8, 0x00, 0x00],
}
}
/// Set the output power.
///
/// For low power selected in [`set_pa_config`]:
///
/// * 0x0E: +14 dB
/// * ...
/// * 0x00: 0 dB
/// * ...
/// * 0xEF: -17 dB
/// * Others: reserved
///
/// For high power selected in [`set_pa_config`]:
///
/// * 0x16: +22 dB
/// * ...
/// * 0x00: 0 dB
/// * ...
/// * 0xF7: -9 dB
/// * Others: reserved
///
/// # Example
///
/// Set the output power to 0 dB.
///
/// ```
/// use stm32wlxx_hal::subghz::{RampTime, TxParams};
///
/// const TX_PARAMS: TxParams = TxParams::new().set_power(0x00);
/// # assert_eq!(TX_PARAMS.as_slice()[1], 0x00);
/// ```
///
/// [`set_pa_config`]: super::SubGhz::set_pa_config
#[must_use = "set_power returns a modified TxParams"]
pub const fn set_power(mut self, power: u8) -> TxParams {
self.buf[1] = power;
self
}
/// Set the Power amplifier ramp time for FSK, MSK, and LoRa modulation.
///
/// # Example
///
/// Set the ramp time to 200 microseconds.
///
/// ```
/// use stm32wlxx_hal::subghz::{RampTime, TxParams};
///
/// const TX_PARAMS: TxParams = TxParams::new().set_ramp_time(RampTime::Micros200);
/// # assert_eq!(TX_PARAMS.as_slice()[2], 0x04);
/// ```
#[must_use = "set_ramp_time returns a modified TxParams"]
pub const fn set_ramp_time(mut self, rt: RampTime) -> TxParams {
self.buf[2] = rt as u8;
self
}
/// Extracts a slice containing the packet.
///
/// # Example
///
/// ```
/// use stm32wlxx_hal::subghz::{RampTime, TxParams};
///
/// const TX_PARAMS: TxParams = TxParams::new()
/// .set_ramp_time(RampTime::Micros80)
/// .set_power(0x0E);
/// assert_eq!(TX_PARAMS.as_slice(), &[0x8E, 0x0E, 0x03]);
/// ```
pub const fn as_slice(&self) -> &[u8] {
&self.buf
}
}
impl Default for TxParams {
fn default() -> Self {
Self::new()
}
}