support AC modification for Hantek6022

Signed-off-by: Martin <Ho-Ro@users.noreply.github.com>

Author: Ho-Ro

CMakeLists.txt

@@ -27,6 +27,15 @@ else()
   add_compile_options(-Wall -Wextra -pedantic)
 endif()
 
+# enable extra feature(s)
+if ( DEFINED HANTEK_AC )
+    add_compile_definitions( HANTEK_AC )
+endif()
+
+# show all compile definitions
+#get_directory_property( DirDefs COMPILE_DEFINITIONS )
+#message( "COMPILE_DEFINITIONS = ${DirDefs}" )
+
 # Qt Widgets based Gui with OpenGL canvas
 add_subdirectory(openhantek)
 

docs/HANTEK6022_AC_Modification.pdf

@@ -1,2 +1,2 @@
 // Do not edit, will be re-created at each commit!
-#define OH_BUILD "20191103 build 536"
+#define OH_BUILD "20191105 build 537"

openhantek/src/OH_BUILD.h

@@ -1,7 +1,7 @@
 // define the version that is shown on top of the program
 // if undefined (for development commits) the build will be shown by OpenHantek
 
-//#define OH_VERSION "v2.17-rc6"
+#define OH_VERSION "v2.17-rc6"
 
 
 # ifdef OH_VERSION

openhantek/src/OH_VERSION.h

@@ -102,8 +102,12 @@ static void initSpecifications(Dso::ControlSpecification& specification) {
     };
 
     specification.sampleSize = specification.fixedSampleRates.size();
-    //specification.couplings = {Dso::Coupling::DC};
-    specification.couplings = {Dso::Coupling::DC, Dso::Coupling::AC}; // requires AC/DC HW mod like DDS120
+#ifdef HANTEK_AC
+     // requires AC/DC HW mod like DDS120, enable with "cmake -D HANTEK_AC=1 .."
+    specification.couplings = {Dso::Coupling::DC, Dso::Coupling::AC};
+#else
+    specification.couplings = {Dso::Coupling::DC};
+#endif
     specification.triggerModes = {Dso::TriggerMode::AUTO, Dso::TriggerMode::NORMAL, Dso::TriggerMode::SINGLE};
     specification.fixedUSBinLength = 0;
 }