Implemented LP DAC for enabling common-mode during 4-lead measurement.

src/ad5940_registers.rs

@@ -130,6 +130,107 @@ impl RegisterField for DMUXCON {
     const MASK: u32 = 0b1111;
 }
 
+#[allow(dead_code)]
+#[repr(u32)]
+#[derive(Copy, Clone)]
+pub enum RSTEN {
+    Disabled = 0b0,
+    Enabled  = 0b1,
+}
+
+impl RegisterField for RSTEN {
+    fn reset() -> Self {
+        RSTEN::Disabled
+    }
+    const BIT_OFFSET: u32 = 0;
+    const MASK: u32 = 0b1;
+}
+
+#[allow(dead_code)]
+#[repr(u32)]
+#[derive(Copy, Clone)]
+pub enum PWDEN {
+    DACPoweredOn  = 0b0,
+    DACPoweredOff = 0b1,
+}
+
+impl RegisterField for PWDEN {
+    fn reset() -> Self {
+        PWDEN::DACPoweredOff
+    }
+    const BIT_OFFSET: u32 = 1;
+    const MASK: u32 = 0b1;
+}
+
+#[allow(dead_code)]
+#[repr(u32)]
+#[derive(Copy, Clone)]
+pub enum DACIN6 {
+    Default = 0b0,
+}
+
+impl RegisterField for DACIN6  {
+    fn reset() -> Self {
+        DACIN6::Default
+    }
+    const BIT_OFFSET: u32 = 12;
+    const MASK: u32 = 0b11_1111;
+}
+
+#[allow(dead_code)]
+#[repr(u32)]
+#[derive(Copy, Clone)]
+pub enum SWMUX {
+    CommonModeOff = 0b0,
+    COmmonModeOn  = 0b1,
+}
+
+impl RegisterField for SWMUX {
+    fn reset() -> Self {
+        SWMUX::CommonModeOff
+    }
+    const BIT_OFFSET: u32 = 3;
+    const MASK: u32 = 0b1;
+}
+
+#[allow(dead_code)]
+#[repr(u32)]
+#[derive(Copy, Clone)]
+pub enum TIAPDEN {
+    PowerUp = 0b0,
+    PowerDown  = 0b1,
+}
+
+impl RegisterField for TIAPDEN {
+    fn reset() -> Self {
+        TIAPDEN::PowerDown
+    }
+    const BIT_OFFSET: u32 = 0;
+    const MASK: u32 = 0b1;
+}
+
+#[allow(dead_code)]
+#[repr(u32)]
+#[derive(Copy, Clone)]
+pub enum TIARF {
+    Disconnected = 0b0,
+    R0           = 0b1,
+    R20k         = 0b10,
+    R100k        = 0b11,
+    R200k        = 0b100,
+    R400k        = 0b101,
+    R600k        = 0b110,
+    R1M          = 0b111,
+}
+
+impl RegisterField for TIARF {
+    fn reset() -> Self {
+        TIARF::Disconnected
+    }
+    const BIT_OFFSET: u32 = 13;
+    const MASK: u32 = 0b111;
+}
+
 #[allow(dead_code)]
 #[repr(u32)]
 #[derive(Copy, Clone)]
@@ -158,7 +259,9 @@ pub enum MUXSELN
     HsTiaNeg = 0b00001,
     LpTiaNeg = 0b00010,
     AIN1     = 0b00101,
+    AIN2     = 0b00110,
     AIN3     = 0b00111,
+    VBIAS_CAP= 0b01000,
     ExciNNode= 0b10100,
 }