diff --git a/.cproject b/.cproject
deleted file mode 100644
index 29a5151493e69c235e8c7357513b8857878fd781..0000000000000000000000000000000000000000
--- a/.cproject
+++ /dev/null
@@ -1,76 +0,0 @@
-<?xml version="1.0" encoding="UTF-8" standalone="no"?>
-<?fileVersion 4.0.0?><cproject storage_type_id="org.eclipse.cdt.core.XmlProjectDescriptionStorage">
-	<storageModule moduleId="org.eclipse.cdt.core.settings">
-		<cconfiguration id="nds.nds32le-elf-mculib-v3.base.58599081">
-			<storageModule buildSystemId="org.eclipse.cdt.managedbuilder.core.configurationDataProvider" id="nds.nds32le-elf-mculib-v3.base.58599081" moduleId="org.eclipse.cdt.core.settings" name="Default">
-				<externalSettings/>
-				<extensions>
-					<extension id="com.andestech.ide.cdt.managedbuilder.core.CROSS_GNU_ELF" point="org.eclipse.cdt.core.BinaryParser"/>
-					<extension id="org.eclipse.cdt.core.GmakeErrorParser" point="org.eclipse.cdt.core.ErrorParser"/>
-					<extension id="org.eclipse.cdt.core.CWDLocator" point="org.eclipse.cdt.core.ErrorParser"/>
-					<extension id="org.eclipse.cdt.core.GCCErrorParser" point="org.eclipse.cdt.core.ErrorParser"/>
-					<extension id="org.eclipse.cdt.core.GASErrorParser" point="org.eclipse.cdt.core.ErrorParser"/>
-					<extension id="org.eclipse.cdt.core.GLDErrorParser" point="org.eclipse.cdt.core.ErrorParser"/>
-				</extensions>
-			</storageModule>
-			<storageModule moduleId="cdtBuildSystem" version="4.0.0">
-				<configuration artifactName="${ProjName}" buildProperties="" description="" id="nds.nds32le-elf-mculib-v3.base.58599081" name="Default" parent="org.eclipse.cdt.build.core.emptycfg">
-					<folderInfo id="nds.nds32le-elf-mculib-v3.base.58599081.1110402366" name="/" resourcePath="">
-						<toolChain id="nds.nds32le-elf-mculib-v3.base.1767351733" name="nds32le-elf-mculib-v3" superClass="nds.nds32le-elf-mculib-v3.base">
-							<option id="nds32le-elf-mculib-v3.managedbuild.option.toolchain.NDS32_CPU.1896754197" name="CPU" superClass="nds32le-elf-mculib-v3.managedbuild.option.toolchain.NDS32_CPU"/>
-							<option id="nds32le-elf-mculib-v3.managedbuild.option.toolchain.NDS32_LIST_CPU.895643889" name="LIST_CPU" superClass="nds32le-elf-mculib-v3.managedbuild.option.toolchain.NDS32_LIST_CPU"/>
-							<option id="nds32le-elf-mculib-v3.managedbuild.option.toolchain.NDS32_CORE.1142664471" name="CORE" superClass="nds32le-elf-mculib-v3.managedbuild.option.toolchain.NDS32_CORE"/>
-							<option id="nds32le-elf-mculib-v3.managedbuild.option.toolchain.NDS32_ARCH.1121945628" name="ARCH" superClass="nds32le-elf-mculib-v3.managedbuild.option.toolchain.NDS32_ARCH"/>
-							<option id="nds32le-elf-mculib-v3.managedbuild.option.toolchain.NDS32_ISA_REDUCE_REGS.1293207534" name="ISA_REDUCE_REGS" superClass="nds32le-elf-mculib-v3.managedbuild.option.toolchain.NDS32_ISA_REDUCE_REGS"/>
-							<option id="nds32le-elf-mculib-v3.managedbuild.option.toolchain.NDS32_TARGET.1070191715" name="TARGET" superClass="nds32le-elf-mculib-v3.managedbuild.option.toolchain.NDS32_TARGET"/>
-							<option id="nds32le-elf-mculib-v3.managedbuild.option.toolchain.NDS32_ENDIAN.377724547" name="ENDIAN" superClass="nds32le-elf-mculib-v3.managedbuild.option.toolchain.NDS32_ENDIAN"/>
-							<option id="nds32le-elf-mculib-v3.managedbuild.option.toolchain.NDS32_LIB_C_DEFAULT.464304688" name="LIB_C_DEFAULT" superClass="nds32le-elf-mculib-v3.managedbuild.option.toolchain.NDS32_LIB_C_DEFAULT"/>
-							<option id="nds32le-elf-mculib-v3.managedbuild.option.toolchain.NDS32_LIB_CPP_DEFAULT.1439903022" name="LIB_CPP_DEFAULT" superClass="nds32le-elf-mculib-v3.managedbuild.option.toolchain.NDS32_LIB_CPP_DEFAULT"/>
-							<option id="nds32le-elf-mculib-v3.managedbuild.option.toolchain.RSE_TARGET.1444389132" name="RSE_TARGET" superClass="nds32le-elf-mculib-v3.managedbuild.option.toolchain.RSE_TARGET"/>
-							<option id="nds32le-elf-mculib-v3.managedbuild.option.toolchain.RSE_CONNECT.1587775719" name="RSE_CONNECT" superClass="nds32le-elf-mculib-v3.managedbuild.option.toolchain.RSE_CONNECT"/>
-							<targetPlatform archList="all" binaryParser="com.andestech.ide.cdt.managedbuilder.core.CROSS_GNU_ELF" id="target.nds.platform.base.894202893" name="Debug Platform" osList="all" superClass="target.nds.platform.base"/>
-							<builder buildPath="${workspace_loc:/rtt_master/bsp/AE210P}" cleanBuildTarget="APP=rtthread AE210P=1 USING_CLI=1 DEBUG=1 clean" id="target.nds.builder.base.798580194" incrementalBuildTarget="APP=rtthread AE210P=1 USING_CLI=1 DEBUG=1 all" keepEnvironmentInBuildfile="false" managedBuildOn="false" name="Andes Make Builder" superClass="target.nds.builder.base"/>
-							<tool id="tool.nds32le-elf-mculib-v3.archiver.base.541270770" name="Andes Archiver" superClass="tool.nds32le-elf-mculib-v3.archiver.base"/>
-							<tool id="tool.nds32le-elf-mculib-v3.cpp.compiler.base.798443763" name="Andes C++ Compiler" superClass="tool.nds32le-elf-mculib-v3.cpp.compiler.base"/>
-							<tool id="tool.nds32le-elf-mculib-v3.cpp.linker.base.1663125809" name="Andes C++ Linker" superClass="tool.nds32le-elf-mculib-v3.cpp.linker.base">
-								<option defaultValue="true" id="nds32le-elf-mculib-v3.cpp.link.option.noshared.base.889050287" name="No shared libraries (-static)" superClass="nds32le-elf-mculib-v3.cpp.link.option.noshared.base" valueType="boolean"/>
-							</tool>
-							<tool id="tool.nds32le-elf-mculib-v3.c.compiler.base.1446774168" name="Andes C Compiler" superClass="tool.nds32le-elf-mculib-v3.c.compiler.base">
-								<inputType id="tool.nds.c.compiler.input.624026089" superClass="tool.nds.c.compiler.input"/>
-							</tool>
-							<tool id="tool.nds32le-elf-mculib-v3.c.linker.base.84728931" name="Andes C Linker" superClass="tool.nds32le-elf-mculib-v3.c.linker.base">
-								<option defaultValue="true" id="nds32le-elf-mculib-v3.c.link.option.noshared.base.2119240931" name="No shared libraries (-static)" superClass="nds32le-elf-mculib-v3.c.link.option.noshared.base" valueType="boolean"/>
-								<inputType id="tool.nds.c.linker.input.775039577" superClass="tool.nds.c.linker.input">
-									<additionalInput kind="additionalinputdependency" paths="$(USER_OBJS)"/>
-									<additionalInput kind="additionalinput" paths="$(LIBS)"/>
-								</inputType>
-							</tool>
-							<tool id="tool.nds32le-elf-mculib-v3.assembler.base.1651903076" name="Andes Assembler" superClass="tool.nds32le-elf-mculib-v3.assembler.base">
-								<inputType id="tool.nds.assembler.input.639385268" superClass="tool.nds.assembler.input"/>
-							</tool>
-							<tool id="tool.nds32le-elf-mculib-v3.nm.base.1513872058" name="NM (symbol listing)" superClass="tool.nds32le-elf-mculib-v3.nm.base"/>
-							<tool id="tool.nds32le-elf-mculib-v3.readelf.base.839251283" name="Readelf (ELF info listing)" superClass="tool.nds32le-elf-mculib-v3.readelf.base"/>
-							<tool id="tool.nds32le-elf-mculib-v3.objdump.base.380287659" name="Objdump (disassembly)" superClass="tool.nds32le-elf-mculib-v3.objdump.base"/>
-							<tool id="tool.nds32le-elf-mculib-v3.objcopy.base.511281711" name="Objcopy (object content copy)" superClass="tool.nds32le-elf-mculib-v3.objcopy.base"/>
-							<tool id="tool.nds32le-elf-mculib-v3.size.base.191568706" name="Size (section size listing)" superClass="tool.nds32le-elf-mculib-v3.size.base"/>
-							<tool id="tool.nds32le-elf-mculib-v3.ldsag.base.682055329" name="LdSaG Tool" superClass="tool.nds32le-elf-mculib-v3.ldsag.base"/>
-						</toolChain>
-					</folderInfo>
-				</configuration>
-			</storageModule>
-			<storageModule moduleId="org.eclipse.cdt.core.externalSettings"/>
-		</cconfiguration>
-	</storageModule>
-	<storageModule moduleId="cdtBuildSystem" version="4.0.0">
-		<project id="rtt_master.null.750251984" name="rtt_master"/>
-	</storageModule>
-	<storageModule moduleId="scannerConfiguration">
-		<autodiscovery enabled="true" problemReportingEnabled="true" selectedProfileId=""/>
-	</storageModule>
-	<storageModule moduleId="org.eclipse.cdt.core.LanguageSettingsProviders"/>
-	<storageModule moduleId="refreshScope" versionNumber="2">
-		<configuration configurationName="Default">
-			<resource resourceType="PROJECT" workspacePath="/rtt_master"/>
-		</configuration>
-	</storageModule>
-</cproject>