added some inital support for flashing via openocd instead of gdb, for wider compatability

CMakeLists.txt

@@ -11,9 +11,9 @@ if (NOT NRF5_SDK_PATH)
   message(FATAL_ERROR "The path to the NRF52 SDK must be specified on the command line (add -DNRF5_SDK_PATH=<path>")
 endif ()
 
-if(NOT USE_JLINK AND NOT USE_GDB_CLIENT)
-  set(USE_JLINK true)
-endif()
+#if(NOT USE_JLINK AND NOT USE_GDB_CLIENT)
+#  set(USE_JLINK true)
+#endif()
 
 if(USE_JLINK)
   if (NOT NRFJPROG)
@@ -44,6 +44,8 @@ elseif(USE_GDB_CLIENT)
   message("    * Programmer/debugger : GDB Client")
   message("    * GDB Client path : " ${GDB_CLIENT_BIN_PATH})
   message("    * GDB Target : " ${GDB_CLIENT_TARGET_REMOTE})
+elseif(USE_OPENOCD_CLIENT)
+  message("    * Programmer/debugger : OpenOCD Client")
 endif()
 
 set(VERSION_EDIT_WARNING "// Do not edit this file, it is automatically generated by CMAKE!")