diff --git a/APP/AT32F437xM_FLASH.ld b/APP/AT32F437xM_FLASH.ld
index ae5cdf4..606629b 100644
--- a/APP/AT32F437xM_FLASH.ld
+++ b/APP/AT32F437xM_FLASH.ld
@@ -32,8 +32,8 @@ _Min_Stack_Size = 0x400; /* required amount of stack */
 _FullFirmwareSize = 1024K ;
 _MetadataSize = 256 ;
 _FirmwareSize = _FullFirmwareSize - _MetadataSize ;
-/*_FirmwareBegin = 0x08100000;*/
-_FirmwareBegin = 0x08000000;
+_FirmwareBegin = 0x08100000;
+/*_FirmwareBegin = 0x08000000;*/
 
 /* Specify the memory areas */
 MEMORY
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 2f31197..cd439b9 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -5,8 +5,8 @@ CMAKE_MINIMUM_REQUIRED(VERSION 3.8.0)
 
 set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fno-math-errno -ffast-math -funswitch-loops -fpredictive-commoning -finline-functions")
 
-set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} -O0")
-set(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -O0")
+set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} -O1")
+set(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -O1")
 
 
 IF (${CMAKE_SOURCE_DIR} STREQUAL ${CMAKE_BINARY_DIR})
@@ -26,8 +26,8 @@ SET(HARDWARE_REVISION MAIN_APP)    #
 SET(VERSION \"3.1.03\")             #
 SET(HARDWARE_USER_NAME "Гонец N1")
 #SET(VECT_TAB_OFFSET "0x100000")
-#SET(VECT_TAB_OFFSET "0x100000")
-SET(VECT_TAB_OFFSET "0x000000")
+SET(VECT_TAB_OFFSET "0x100000")
+#SET(VECT_TAB_OFFSET "0x000000")
 
 SET(HEXT_VALUE "25000000")
 SET(PLL_NS "40")