work on = problem

CPP/register_modeling/example_project/driver/device.cpp

@@ -1,8 +1,11 @@
 #include "device.hpp"
 #include <iostream>
 
-Device::Device()
+Device::Device() :
+    reg_control(0xFF)
 {
+    std::cout << +reg_control.raw << std::endl;
+
     reg_control.bits.POWER_DEV = Reg_Control::POWER_DEV::TURN_OFF;
     reg_control.bits.SPEED = Reg_Control::SPEED::STAND_STILL;
 
@@ -18,6 +21,9 @@ void Device::doSomething()
     reg_control.bits.POWER_DEV = Reg_Control::POWER_DEV::TURN_ON;
     reg_control.bits.SPEED = Reg_Control::SPEED::FAST;
 
+    if(reg_control.bits.POWER_DEV == Reg_Control::POWER_DEV::TURN_ON){
+        std::cout << "device turned on!" << std::endl;
+    }
     std::cout << +reg_control.raw << std::endl;
 
 }

CPP/register_modeling/example_project/driver/device.hpp

@@ -44,26 +44,27 @@ class Device
 #endif
         union Reg_Control
         {
-            // bit 7
+            // bit 4
             struct POWER_DEV{
-                typedef BitField<uint8_t, 7, 1> bits;
+                typedef BitField<uint8_t, 4, 1> Bits;
                 enum{TURN_OFF = 0, TURN_ON = 1};
             };
             // bits 2-3
             struct SPEED{
-                typedef BitField<uint8_t, 2, 2> bits;
+                typedef BitField<uint8_t, 2, 2> Bits;
                 enum{STAND_STILL = 0,
                      SLOW = 1,
                      NORMAL = 2,
                      FAST = 3};
             };
-            union Bits{
-                Reg_Control::POWER_DEV::bits POWER_DEV;
-                Reg_Control::SPEED::bits SPEED;
+            struct Bits{
+                Reg_Control::POWER_DEV::Bits POWER_DEV;
+                Reg_Control::SPEED::Bits SPEED;
             } bits;
+            // raw value. all bitfields will be "unified" here ;)
             uint8_t raw;
-            // union Ctor
-            Reg_Control(uint8_t v = 0x00) : raw(0x00) {}
+            // union Ctor with default value set to 0x00
+            Reg_Control(uint8_t v = 0x00) : raw(v) {}
         };
 
         Reg_Control reg_control;