Add support for setting the comparator mode

2 files changed, 24 insertions, 1 deletions

diff --git a/src/devices/ads1x1x/features/mod.rs b/src/devices/ads1x1x/features/mod.rs
index ad26258..c24b7b4 100644
--- a/src/devices/ads1x1x/features/mod.rs
+++ b/src/devices/ads1x1x/features/mod.rs
@@ -2,4 +2,4 @@
 //! support.
 
 mod tier1;
-
+mod tier2;
diff --git a/src/devices/ads1x1x/features/tier2.rs b/src/devices/ads1x1x/features/tier2.rs
new file mode 100644
index 0000000..d238691
--- /dev/null
+++ b/src/devices/ads1x1x/features/tier2.rs
@@ -0,0 +1,23 @@
+//! Tier 2 features.
+//!
+//! These are the features included only in ADS1x14, ADS1x15
+
+use { Ads1x1x, Error, interface, ic, ComparatorMode, Register, BitFlags };
+
+impl<DI, IC, MODE, E> Ads1x1x<DI, IC, MODE>
+where
+    DI: interface::WriteData<Error = E>,
+    IC: ic::Resolution + ic::Tier2Features
+{
+    /// Set comparator mode
+    pub fn set_comparator_mode(&mut self, mode: ComparatorMode) -> Result<(), Error<E>> {
+        let config;
+        match mode {
+            ComparatorMode::Traditional => config = self.config.with_low(BitFlags::COMP_MODE),
+            ComparatorMode::Window      => config = self.config.with_high(BitFlags::COMP_MODE)
+        }
+        self.iface.write_register(Register::CONFIG, config.bits)?;
+        self.config = config;
+        Ok(())
+    }
+}