diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/devices/ads1x1x/features/tier2.rs | 15 | ||||
| -rw-r--r-- | src/lib.rs | 10 |
2 files changed, 24 insertions, 1 deletions
diff --git a/src/devices/ads1x1x/features/tier2.rs b/src/devices/ads1x1x/features/tier2.rs index d238691..7d22796 100644 --- a/src/devices/ads1x1x/features/tier2.rs +++ b/src/devices/ads1x1x/features/tier2.rs @@ -2,7 +2,8 @@ //! //! These are the features included only in ADS1x14, ADS1x15 -use { Ads1x1x, Error, interface, ic, ComparatorMode, Register, BitFlags }; +use { Ads1x1x, Error, interface, ic, ComparatorMode, ComparatorPolarity, + Register, BitFlags }; impl<DI, IC, MODE, E> Ads1x1x<DI, IC, MODE> where @@ -20,4 +21,16 @@ where self.config = config; Ok(()) } + + /// Set comparator polarity + pub fn set_comparator_polarity(&mut self, polarity: ComparatorPolarity) -> Result<(), Error<E>> { + let config; + match polarity { + ComparatorPolarity::ActiveLow => config = self.config.with_low( BitFlags::COMP_POL), + ComparatorPolarity::ActiveHigh => config = self.config.with_high(BitFlags::COMP_POL) + } + self.iface.write_register(Register::CONFIG, config.bits)?; + self.config = config; + Ok(()) + } } @@ -124,6 +124,15 @@ pub enum ComparatorMode { Window } +/// Comparator polarity (only for ADS1x14, ADS1x15) +#[derive(Debug, Clone)] +pub enum ComparatorPolarity { + /// Active low (default) + ActiveLow, + /// Active high + ActiveHigh +} + /// Possible slave addresses #[derive(Debug, Clone)] pub enum SlaveAddr { @@ -168,6 +177,7 @@ impl BitFlags { const DR1 : u16 = 0b0000_0000_0100_0000; const DR0 : u16 = 0b0000_0000_0010_0000; const COMP_MODE : u16 = 0b0000_0000_0001_0000; + const COMP_POL : u16 = 0b0000_0000_0000_1000; } |