Revision 1:c033f984277b, committed 2019-01-29

Comitter:

Ryan Vasquez

Date:

Tue Jan 29 13:03:54 2019 -0600

Parent:

0:af07575e0c04

Child:

2:6edde8a229f7

Commit message:

Added more documentation to the driver.

Changed in this revision

--- a/DACxx6xT.cpp	Mon Jan 21 18:31:29 2019 +0000
+++ b/DACxx6xT.cpp	Tue Jan 29 13:03:54 2019 -0600
@@ -6,10 +6,11 @@
 {
   DACC = A;
   numslaves = 0;
-  vref = Vref;
+  vref_A = Vref;
   vrefpin = Vref;
-  gain_DAC_A = 1;
-  gain_DAC_B = 1;
+  gain_DAC_A = 1.0;
+  gain_DAC_B = 1.0;
+  vref_B = Vref;
 }
 
 DACxx6xT::DACxx6xT(SPI *A, DigitalOut *device_CS, float Vref = 3.3)
@@ -17,10 +18,11 @@
   DACC = A;
   CS = device_CS;
   CS->write(1);
-  vref = Vref;
+  vref_A = Vref;
+  vref_B = Vref;
   vrefpin = Vref;
-  gain_DAC_A = 1;
-  gain_DAC_B = 1;
+  gain_DAC_A = 1.0;
+  gain_DAC_B = 1.0;
 }
 
 void DACxx6xT::init()
@@ -68,24 +70,36 @@
       DACC->write(DAC_B_G1_DAC_A_G1>>16);
       DACC->write(DAC_B_G1_DAC_A_G1>>8);
       DACC->write(DAC_B_G1_DAC_A_G1);
+      gain_DAC_A = 1;
+      gain_DAC_B = 1;
     }
     else if(gain_DAC_A == 2 && gain_DAC_B == 1)//Gain: DAC-B gain = 1, DAC-A gain = 2
     {
       DACC->write(DAC_B_G1_DAC_A_G2>>16);
       DACC->write(DAC_B_G1_DAC_A_G2>>8);
       DACC->write(DAC_B_G1_DAC_A_G2);
+      gain_DAC_A = 2;
+      //vref_A = 2.5;
+      gain_DAC_B = 1;
     }
     else if(gain_DAC_A == 1 && gain_DAC_B == 2)//Gain: DAC-B gain = 2, DAC-A gain = 1
     {
       DACC->write(DAC_B_G2_DAC_A_G1>>16);
       DACC->write(DAC_B_G2_DAC_A_G1>>8);
       DACC->write(DAC_B_G2_DAC_A_G1);
+      gain_DAC_A = 1;
+      gain_DAC_B = 2;
+      //vref_B = 2.5;
     }
-    else if(gain_DAC_A == 2 && gain_DAC_B == 2)//Gain: DAC-B gain = 2, DAC-A gain = 1
+    else if(gain_DAC_A == 2 && gain_DAC_B == 2)//Gain: DAC-B gain = 2, DAC-A gain = 2
     {
       DACC->write(DAC_B_G2_DAC_A_G2>>16);
       DACC->write(DAC_B_G2_DAC_A_G2>>8);
       DACC->write(DAC_B_G2_DAC_A_G2);
+      gain_DAC_A = 2;
+      //vref_A = 2.5;
+      gain_DAC_B = 2;
+      //vref_B = 2.5;
     }
     CS->write(1);
 }
@@ -96,7 +110,10 @@
   DACC->write(EN_INTREF_GAIN2_ALL>>16);
   DACC->write(EN_INTREF_GAIN2_ALL>>8);
   DACC->write(EN_INTREF_GAIN2_ALL);
-  vref = INTERNAL_VREF;
+  vref_A = INTERNAL_VREF;
+  vref_B = INTERNAL_VREF;
+  gain_DAC_B = 2;
+  gain_DAC_A = 2;
   CS->write(1);
 }
 
@@ -106,7 +123,8 @@
   DACC->write(DIS_INTREF_GAIN1_ALL>>16);
   DACC->write(DIS_INTREF_GAIN1_ALL>>8);
   DACC->write(DIS_INTREF_GAIN1_ALL);
-  vref = vrefpin;
+  vref_A = vrefpin;
+  vref_B = vrefpin;
   CS->write(1);
 }
 
@@ -126,10 +144,10 @@
 {
   if(dacnum == 1)
   {
-    write(static_cast<int>((value/(vref*gain_DAC_A*custom_gain_A))*65536.0), 1);
+    write(static_cast<int>((value/(vref_A*gain_DAC_A*custom_gain_A))*65535.0), 1);
   }
-  else if(dacnum == 2)
+ if(dacnum == 2)
   {
-    write(static_cast<int>((value/(vref*gain_DAC_B*custom_gain_B))*65536.0), 2);
+    write(static_cast<int>((value/(vref_B*gain_DAC_B*custom_gain_B))*65535.0), 2);
   }
 }

--- a/DACxx6xT.h	Mon Jan 21 18:31:29 2019 +0000
+++ b/DACxx6xT.h	Tue Jan 29 13:03:54 2019 -0600
@@ -15,7 +15,7 @@
 #define UPDATE_DAC_A 0x08 //Update DAC-A
 #define UPDATE_DAC_B 0x09 //Update DAC-B
 #define UPDATE_ALL_DACS 0x0F //Update all DACs
-#define DAC_B_G2_DAC_A_G2 0x20000 //0 Gain: DAC-B gain = 2, DAC-A gain = 2 (default with internal VREF)
+#define DAC_B_G2_DAC_A_G2 0x020000 //0 Gain: DAC-B gain = 2, DAC-A gain = 2 (default with internal VREF)
 #define DAC_B_G2_DAC_A_G1 0x020001 //Gain: DAC-B gain = 2, DAC-A gain = 1
 #define DAC_B_G1_DAC_A_G2 0x020002 //Gain: DAC-B gain = 1, DAC-A gain = 2
 #define DAC_B_G1_DAC_A_G1 0x020003 //Gain: DAC-B gain = 1, DAC-A gain = 1 (power-on default)
@@ -85,7 +85,8 @@
 private:
   int numslaves;
   DigitalOut *CS;
-  float vref;
+  float vref_A;
+  float vref_B;
   float vrefpin;
   float gain_DAC_A;
   float gain_DAC_B;