Diff: MAX11410.cpp

Revision:

14:b49eecf7e4d8

Parent:

13:df96a784cda6

Child:

15:d5781c8fc002

--- a/MAX11410.cpp	Thu Feb 20 10:45:05 2020 +0000
+++ b/MAX11410.cpp	Tue Mar 10 01:56:56 2020 -0700
@@ -473,6 +473,8 @@
 // @pre VRef = Voltage of REF input, in Volts
 // @param[in] value_u24: raw 24-bit MAX11410 code (right justified).
 // @return physical voltage corresponding to MAX11410 code.
+//
+// @test Configure_CTRL_REF(2) expect 1 These tests require REF2 = 2.500V
 // @test group UNIPOLAR VoltageOfCode_Unipolar(0xFFFFFF) expect 2.500 within 0.030 Full Scale
 // @test group UNIPOLAR VoltageOfCode_Unipolar(0xFFFFFE) expect 2.500             Full Scale
 // @test group UNIPOLAR VoltageOfCode_Unipolar(0xCCCCCC) expect 2.000             Two Volts
@@ -525,6 +527,8 @@
 // @pre VRef = Voltage of REF input, in Volts
 // @param[in] value_u24: raw 24-bit MAX11410 code (right justified).
 // @return physical voltage corresponding to MAX11410 code.
+//
+// @test Configure_CTRL_REF(2) expect 1 These tests require REF2 = 2.500V
 // @test group BIPOB VoltageOfCode_Bipolar_OffsetBinary(0xFFFFFF) expect 2.5 within 0.030  Full Scale
 // @test group BIPOB VoltageOfCode_Bipolar_OffsetBinary(0xFFFFFE) expect 2.5               Full Scale
 // @test group BIPOB VoltageOfCode_Bipolar_OffsetBinary(0xC00000) expect 1.25              Mid Scale
@@ -577,6 +581,8 @@
 // @pre VRef = Voltage of REF input, in Volts
 // @param[in] value_u24: raw 24-bit MAX11410 code (right justified).
 // @return physical voltage corresponding to MAX11410 code.
+//
+// @test Configure_CTRL_REF(2) expect 1 These tests require REF2 = 2.500V
 // @test group BIP2C VoltageOfCode_Bipolar_2sComplement(0x7FFFFF) expect 2.500 within 0.030 Full Scale
 // @test group BIP2C VoltageOfCode_Bipolar_2sComplement(0x7FFFFE) expect 2.500             Full Scale
 // @test group BIP2C VoltageOfCode_Bipolar_2sComplement(0x666666) expect 2.000             Two Volts
@@ -1228,6 +1234,32 @@
 }
 
 //----------------------------------------
+// Menu item 'XR'
+//
+// CTRL select reference, without changing the other fields.
+//
+// @pre ctrl = shadow of CTRL register
+// @param[in] ref_sel = reference selection, default=MAX11410::REF_SEL_enum_t::REF_SEL_001_REF1P_REF1N
+//
+// @return 1 on success; 0 on failure
+uint8_t MAX11410::Configure_CTRL_REF(uint8_t ref_sel)
+{
+    
+    //----------------------------------------
+    // shadow of register CMD_r000_1001_dddd_dddd_CTRL
+    ctrl = (ctrl & ((~ 7) << 0))
+        | (((uint8_t)ref_sel    & 7) << 0);
+    
+    //----------------------------------------
+    // write8 0x09 CTRL
+    RegWrite(CMD_r000_1001_dddd_dddd_CTRL, ctrl);
+    
+    //----------------------------------------
+    // success
+    return 1;
+}
+
+//----------------------------------------
 // Menu item 'XS'
 //
 // SOURCE Configure voltage bias source, current source, burnout mode