-implemented basic button function

->button press initiates 4 times 25 FULL STEPS forward (180 deg)
->reset to home position afterwards

stepper/steppermotor_F401RE/Release/Core/Src/main.su

@@ -1,4 +1,4 @@
-main.c:480:6:MyErrorHandler	0	static
-main.c:469:6:MyFlagInterruptHandler	0	static
-main.c:79:5:main	8	static
-main.c:497:6:ButtonHandler	8	static
+main.c:188:6:MyErrorHandler	0	static
+main.c:177:6:MyFlagInterruptHandler	0	static
+main.c:80:5:main	16	static
+main.c:205:6:ButtonHandler	8	static

stepper/steppermotor_F401RE/Release/makefile

@@ -54,8 +54,8 @@ all: main-build
 main-build: steppermotor_F401RE.elf secondary-outputs
 
 # Tool invocations
-steppermotor_F401RE.elf: $(OBJS) $(USER_OBJS) C:\Users\Gregor\Desktop\Projektarbeit\Workspace\stepper\steppermotor_F401RE\STM32F401RETX_FLASH.ld
-	arm-none-eabi-gcc -o "steppermotor_F401RE.elf" @"objects.list" $(USER_OBJS) $(LIBS) -mcpu=cortex-m4 -T"C:\Users\Gregor\Desktop\Projektarbeit\Workspace\stepper\steppermotor_F401RE\STM32F401RETX_FLASH.ld" --specs=nosys.specs -Wl,-Map="steppermotor_F401RE.map" -Wl,--gc-sections -static --specs=nano.specs -mfpu=fpv4-sp-d16 -mfloat-abi=hard -mthumb -Wl,--start-group -lc -lm -Wl,--end-group
+steppermotor_F401RE.elf: $(OBJS) $(USER_OBJS) C:\Users\wuest\Desktop\Studium\Master\Sem2\Projekt\Arbeit\uC\Motorsteuerung\stepper\steppermotor_F401RE\STM32F401RETX_FLASH.ld
+	arm-none-eabi-gcc -o "steppermotor_F401RE.elf" @"objects.list" $(USER_OBJS) $(LIBS) -mcpu=cortex-m4 -T"C:\Users\wuest\Desktop\Studium\Master\Sem2\Projekt\Arbeit\uC\Motorsteuerung\stepper\steppermotor_F401RE\STM32F401RETX_FLASH.ld" --specs=nosys.specs -Wl,-Map="steppermotor_F401RE.map" -Wl,--gc-sections -static --specs=nano.specs -mfpu=fpv4-sp-d16 -mfloat-abi=hard -mthumb -Wl,--start-group -lc -lm -Wl,--end-group
 	@echo 'Finished building target: $@'
 	@echo ' '