Add function to disable comparator

2 files changed, 15 insertions, 0 deletions

diff --git a/src/devices/features/tier2.rs b/src/devices/features/tier2.rs
index 5d7ec92..17502e6 100644
--- a/src/devices/features/tier2.rs
+++ b/src/devices/features/tier2.rs
@@ -58,4 +58,15 @@ where
         self.config = config;
         Ok(())
     }
+    /// Disable comparator (default)
+    ///
+    /// This will set the ALERT/RDY pin to high-impedance.
+    /// The comparator can be enabled by setting the comparator queue.
+    /// See [`set_comparator_queue()`](struct.Ads1x1x.html#method.set_comparator_queue)
+    pub fn disable_comparator(&mut self) -> Result<(), Error<E>> {
+        let config = self.config.with_high(BitFlags::COMP_QUE1).with_high(BitFlags::COMP_QUE0);
+        self.iface.write_register(Register::CONFIG, config.bits)?;
+        self.config = config;
+        Ok(())
+    }
 }
diff --git a/src/lib.rs b/src/lib.rs
index 4abe8f8..b7b3ce0 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -12,6 +12,7 @@
 //! - Set the comparator mode. See: [`set_comparator_mode()`].
 //! - Set the comparator polarity. See: [`set_comparator_polarity()`].
 //! - Set the comparator latching. See: [`set_comparator_latching()`].
+//! - Disable the comparator. See: [`disable_comparator()`].
 //!
 //! [`into_continuous()`]: struct.Ads1x1x.html#method.into_continuous
 //! [`read()`]: struct.Ads1x1x.html#method.read
@@ -20,6 +21,7 @@
 //! [`set_comparator_mode()`]: struct.Ads1x1x.html#method.set_comparator_mode
 //! [`set_comparator_polarity()`]: struct.Ads1x1x.html#method.set_comparator_polarity
 //! [`set_comparator_latching()`]: struct.Ads1x1x.html#method.set_comparator_latching
+//! [`disable_comparator()`]: struct.Ads1x1x.html#method.disable_comparator
 //!
 //! ## The devices
 //!
@@ -267,6 +269,8 @@ impl BitFlags {
     const COMP_MODE    : u16 = 0b0000_0000_0001_0000;
     const COMP_POL     : u16 = 0b0000_0000_0000_1000;
     const COMP_LAT     : u16 = 0b0000_0000_0000_0100;
+    const COMP_QUE1    : u16 = 0b0000_0000_0000_0010;
+    const COMP_QUE0    : u16 = 0b0000_0000_0000_0001;
 }