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/// Charge transfer pulse cycles
#[allow(missing_docs)]
#[derive(Copy, Clone, PartialEq)]
pub enum ChargeTransferPulseCycle {
_1,
_2,
_3,
_4,
_5,
_6,
_7,
_8,
_9,
_10,
_11,
_12,
_13,
_14,
_15,
_16,
}
impl Into<u8> for ChargeTransferPulseCycle {
fn into(self) -> u8 {
match self {
ChargeTransferPulseCycle::_1 => 0,
ChargeTransferPulseCycle::_2 => 1,
ChargeTransferPulseCycle::_3 => 2,
ChargeTransferPulseCycle::_4 => 3,
ChargeTransferPulseCycle::_5 => 4,
ChargeTransferPulseCycle::_6 => 5,
ChargeTransferPulseCycle::_7 => 6,
ChargeTransferPulseCycle::_8 => 7,
ChargeTransferPulseCycle::_9 => 8,
ChargeTransferPulseCycle::_10 => 9,
ChargeTransferPulseCycle::_11 => 10,
ChargeTransferPulseCycle::_12 => 11,
ChargeTransferPulseCycle::_13 => 12,
ChargeTransferPulseCycle::_14 => 13,
ChargeTransferPulseCycle::_15 => 14,
ChargeTransferPulseCycle::_16 => 15,
}
}
}
/// Max count
#[allow(missing_docs)]
#[derive(Copy, Clone)]
pub enum MaxCount {
_255,
_511,
_1023,
_2047,
_4095,
_8191,
_16383,
}
impl Into<u8> for MaxCount {
fn into(self) -> u8 {
match self {
MaxCount::_255 => 0,
MaxCount::_511 => 1,
MaxCount::_1023 => 2,
MaxCount::_2047 => 3,
MaxCount::_4095 => 4,
MaxCount::_8191 => 5,
MaxCount::_16383 => 6,
}
}
}
/// Prescaler divider
#[allow(missing_docs)]
#[derive(Copy, Clone, PartialEq)]
pub enum PGPrescalerDivider {
_1,
_2,
_4,
_8,
_16,
_32,
_64,
_128,
}
impl Into<u8> for PGPrescalerDivider {
fn into(self) -> u8 {
match self {
PGPrescalerDivider::_1 => 0,
PGPrescalerDivider::_2 => 1,
PGPrescalerDivider::_4 => 2,
PGPrescalerDivider::_8 => 3,
PGPrescalerDivider::_16 => 4,
PGPrescalerDivider::_32 => 5,
PGPrescalerDivider::_64 => 6,
PGPrescalerDivider::_128 => 7,
}
}
}
/// Error type for SSDeviation
#[derive(Debug, Clone, Copy, PartialEq, Eq)]
pub enum SSDeviationError {
/// The provided value is too low (0)
ValueTooLow,
/// The provided value is too high (greater than 128)
ValueTooHigh,
}
/// Spread Spectrum Deviation
#[derive(Copy, Clone)]
pub struct SSDeviation(u8);
impl SSDeviation {
/// Create new deviation value, acceptable inputs are 1-128
pub fn new(val: u8) -> Result<Self, SSDeviationError> {
if val == 0 {
return Err(SSDeviationError::ValueTooLow);
} else if val > 128 {
return Err(SSDeviationError::ValueTooHigh);
}
Ok(Self(val - 1))
}
}
impl Into<u8> for SSDeviation {
fn into(self) -> u8 {
self.0
}
}
/// Peripheral configuration
#[derive(Clone, Copy)]
pub struct Config {
/// Duration of high state of the charge transfer pulse
pub ct_pulse_high_length: ChargeTransferPulseCycle,
/// Duration of the low state of the charge transfer pulse
pub ct_pulse_low_length: ChargeTransferPulseCycle,
/// Enable/disable of spread spectrum feature
pub spread_spectrum: bool,
/// Adds variable number of periods of the SS clk to pulse high state
pub spread_spectrum_deviation: SSDeviation,
/// Selects AHB clock divider used to generate SS clk
pub spread_spectrum_prescaler: bool,
/// Selects AHB clock divider used to generate pulse generator clk
pub pulse_generator_prescaler: PGPrescalerDivider,
/// Maximum number of charge transfer pulses that can be generated before error
pub max_count_value: MaxCount,
/// Defines config of all IOs when no ongoing acquisition
pub io_default_mode: bool,
/// Polarity of sync input pin
pub synchro_pin_polarity: bool,
/// Acquisition starts when start bit is set or with sync pin input
pub acquisition_mode: bool,
/// Enable max count interrupt
pub max_count_interrupt: bool,
}
impl Default for Config {
fn default() -> Self {
Self {
ct_pulse_high_length: ChargeTransferPulseCycle::_1,
ct_pulse_low_length: ChargeTransferPulseCycle::_1,
spread_spectrum: false,
spread_spectrum_deviation: SSDeviation::new(1).unwrap(),
spread_spectrum_prescaler: false,
pulse_generator_prescaler: PGPrescalerDivider::_1,
max_count_value: MaxCount::_255,
io_default_mode: false,
synchro_pin_polarity: false,
acquisition_mode: false,
max_count_interrupt: false,
}
}
}
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