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Preconfigured baud rates for FDCAN #13

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Preconfigured baud rates for FDCAN #13

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37 changes: 37 additions & 0 deletions src/config.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -26,6 +26,43 @@ pub struct NominalBitTiming {
pub sync_jump_width: NonZeroU8,
}
impl NominalBitTiming {
pub const BITRATE_1M: NominalBitTiming = NominalBitTiming {
prescaler: unsafe { NonZeroU16::new_unchecked(2) },
seg1: unsafe { NonZeroU8::new_unchecked(13) },
seg2: unsafe { NonZeroU8::new_unchecked(2) },
sync_jump_width: unsafe { NonZeroU8::new_unchecked(1) },
};
pub const BITRATE_500K: NominalBitTiming = NominalBitTiming {
prescaler: unsafe { NonZeroU16::new_unchecked(4) },
seg1: unsafe { NonZeroU8::new_unchecked(13) },
seg2: unsafe { NonZeroU8::new_unchecked(2) },
sync_jump_width: unsafe { NonZeroU8::new_unchecked(1) },
};
pub const BITRATE_250K: NominalBitTiming = NominalBitTiming {
prescaler: unsafe { NonZeroU16::new_unchecked(8) },
seg1: unsafe { NonZeroU8::new_unchecked(13) },
seg2: unsafe { NonZeroU8::new_unchecked(2) },
sync_jump_width: unsafe { NonZeroU8::new_unchecked(1) },
};
pub const BITRATE_125K: NominalBitTiming = NominalBitTiming {
prescaler: unsafe { NonZeroU16::new_unchecked(16) },
seg1: unsafe { NonZeroU8::new_unchecked(13) },
seg2: unsafe { NonZeroU8::new_unchecked(2) },
sync_jump_width: unsafe { NonZeroU8::new_unchecked(1) },
};
pub const BITRATE_100K: NominalBitTiming = NominalBitTiming {
prescaler: unsafe { NonZeroU16::new_unchecked(20) },
seg1: unsafe { NonZeroU8::new_unchecked(13) },
seg2: unsafe { NonZeroU8::new_unchecked(2) },
sync_jump_width: unsafe { NonZeroU8::new_unchecked(1) },
};
pub const BITRATE_50K: NominalBitTiming = NominalBitTiming {
prescaler: unsafe { NonZeroU16::new_unchecked(40) },
seg1: unsafe { NonZeroU8::new_unchecked(13) },
seg2: unsafe { NonZeroU8::new_unchecked(2) },
sync_jump_width: unsafe { NonZeroU8::new_unchecked(1) },
};

#[inline]
pub(crate) fn nbrp(&self) -> u16 {
u16::from(self.prescaler) & 0x1FF
Expand Down