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Globals not initilized

Hi,
I have some global variables declared in a module and initilized to some values.
When I start debugging I've noticed that those globals have random values.
I've checked the "Use Memory Layout from Target Dialog" in linker options.

/* Globals */
int counter = 0x550;
int slack = 0;
int timeout = 0;
static uint32_t button = (uint32_t)0x00000000;
static int init_val = 0;
static uint16_t buffer[BUFFER_SIZE];
volatile uint32_t num = 0U;


Thanks for your support.

IDE-Version:
µVision V5.10.0.2
Copyright (C) 2014 ARM Ltd and ARM Germany GmbH. All rights reserved.

Tool Version Numbers:
Toolchain: MDK-ARM Professional Version: 5.10.0.0
Toolchain Path: C:\Keil_v5\ARM\ARMCC\bin\
C Compiler: Armcc.Exe V5.04.0.49
Assembler: Armasm.Exe V5.04.0.49
Linker/Locator: ArmLink.Exe V5.04.0.49
Librarian: ArmAr.Exe V5.04.0.49
Hex Converter: FromElf.Exe V5.04.0.49
CPU DLL: SARMCM3.DLL V5.10.0.0
Dialog DLL: DCM.DLL V1.10.0.0
Target DLL: STLink\ST-LINKIII-KEIL_SWO.dll
Dialog DLL: TCM.DLL V1.14.1.0

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