问题描述： 在vivado里加入了自定义IP核，vitis build APP时出现错误，同时硬件工程Out-of-date，如下图所示。

解决方法： 修改3个位置的Makefile。

1. 随便找到工程下的一个Makefile，复制。

   我这里找的是Platform/ps7_cortexa9_0/standalone/bsp/ps7_cortexa9_0/libsrc/cpu/src/Makefile，代码如下所示。

   DRIVER_LIB_VERSION = 1.0
   COMPILER=
   ARCHIVER=
   CP=cp
   COMPILER_FLAGS=
   EXTRA_COMPILER_FLAGS=
   LIB=libxil.a
   
   CC_FLAGS = $(COMPILER_FLAGS)
   ECC_FLAGS = $(EXTRA_COMPILER_FLAGS)
   
   RELEASEDIR=../../../lib/
   INCLUDEDIR=../../../include/
   INCLUDES=-I./. -I$(INCLUDEDIR)
   
   SRCFILES:=$(wildcard *.c)
   
   OBJECTS = $(addprefix $(RELEASEDIR), $(addsuffix .o, $(basename $(wildcard *.c))))
   
   libs: $(OBJECTS)
   
   DEPFILES := $(SRCFILES:%.c=$(RELEASEDIR)%.d)
   
   include $(wildcard $(DEPFILES))
   
   include $(wildcard ../../../../dep.mk)
   
   $(RELEASEDIR)%.o: %.c
   	${COMPILER} $(CC_FLAGS) $(ECC_FLAGS) $(INCLUDES) $(DEPENDENCY_FLAGS) $< -o $@
   
   .PHONY: include
   include: $(addprefix $(INCLUDEDIR),$(wildcard *.h))
   
   $(INCLUDEDIR)%.h: %.h
   	$(CP) $< $@
   
   clean:
   	rm -rf ${OBJECTS}
   	rm -rf ${DEPFILES}

2. 找到3个位置的Makefile，将上面复制的内容黏贴，替换原来的文件，保存。

   (a) Platform/hw/drivers/[CustomIP_name]/src/Makefile

   (b) Platform/ps7_cortexa9_0/standalone/bsp/ps7_cortexa9_0/libsrc/[CustomIP_name]/src/Makefile

   (c) Platform/zynq_fsbl/zynq_fsbl_bsp/ps7_cortexa9_0/libsrc/[CustomIP_name]/src/Makefile

   我这里3个位置的Makefile原来的代码如下所示，全部需要替换成上面复制的代码。

   COMPILER=
   ARCHIVER=
   CP=cp
   COMPILER_FLAGS=
   EXTRA_COMPILER_FLAGS=
   LIB=libxil.a
   
   RELEASEDIR=../../../lib
   INCLUDEDIR=../../../include
   INCLUDES=-I./. -I${INCLUDEDIR}
   
   INCLUDEFILES=*.h
   LIBSOURCES=*.c
   OBJECTS = $(addsuffix .o, $(basename $(wildcard *.c)))
   ASSEMBLY_OBJECTS = $(addsuffix .o, $(basename $(wildcard *.S)))
   
   libs:
   	echo "Compiling ax_pwm..."
   	$(COMPILER) $(COMPILER_FLAGS) $(EXTRA_COMPILER_FLAGS) $(INCLUDES) $(LIBSOURCES)
   	$(ARCHIVER) -r ${RELEASEDIR}/${LIB} ${OBJECTS} ${ASSEMBLY_OBJECTS}
   	make clean
   
   include:
   	${CP} $(INCLUDEFILES) $(INCLUDEDIR)
   
   clean:
   	rm -rf ${OBJECTS} ${ASSEMBLY_OBJECTS}

3. 修改完后将APP进行重新Build Project，编译通过。

   

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