diff --git a/bsp/stm32/stm32f103-dofly-M3S/.cproject b/bsp/stm32/stm32f103-dofly-M3S/.cproject
new file mode 100644
index 0000000000000000000000000000000000000000..87ab6e1e3d693195f146125edbae5af949e2531a
--- /dev/null
+++ b/bsp/stm32/stm32f103-dofly-M3S/.cproject
@@ -0,0 +1,155 @@
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+	<storageModule moduleId="scannerConfiguration">
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+		<scannerConfigBuildInfo instanceId="ilg.gnuarmeclipse.managedbuild.cross.config.elf.debug.553091094;ilg.gnuarmeclipse.managedbuild.cross.config.elf.debug.553091094.;ilg.gnuarmeclipse.managedbuild.cross.tool.c.compiler.1570350559;ilg.gnuarmeclipse.managedbuild.cross.tool.c.compiler.input.992053063">
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+		<configuration configurationName="Debug">
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diff --git a/bsp/stm32/stm32f103-dofly-M3S/.project b/bsp/stm32/stm32f103-dofly-M3S/.project
new file mode 100644
index 0000000000000000000000000000000000000000..58d408c7e662c345bdd93fbbbfc2dca0593971ae
--- /dev/null
+++ b/bsp/stm32/stm32f103-dofly-M3S/.project
@@ -0,0 +1,69 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<projectDescription>
+	<name>stm32f103-dofly-M3S</name>
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+			<name>org.eclipse.cdt.managedbuilder.core.ScannerConfigBuilder</name>
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+			<locationURI>virtual:/virtual</locationURI>
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+			<name>rt-thread/components</name>
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+			<locationURI>$%7BPARENT-3-PROJECT_LOC%7D/components</locationURI>
+		</link>
+		<link>
+			<name>rt-thread/include</name>
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+			<locationURI>$%7BPARENT-3-PROJECT_LOC%7D/include</locationURI>
+		</link>
+		<link>
+			<name>rt-thread/libcpu</name>
+			<type>2</type>
+			<locationURI>$%7BPARENT-3-PROJECT_LOC%7D/libcpu</locationURI>
+		</link>
+		<link>
+			<name>rt-thread/src</name>
+			<type>2</type>
+			<locationURI>$%7BPARENT-3-PROJECT_LOC%7D/src</locationURI>
+		</link>
+		<link>
+			<name>rt-thread/bsp/stm32</name>
+			<type>2</type>
+			<locationURI>virtual:/virtual</locationURI>
+		</link>
+		<link>
+			<name>rt-thread/bsp/stm32/libraries</name>
+			<type>2</type>
+			<locationURI>$%7BPARENT-1-PROJECT_LOC%7D/libraries</locationURI>
+		</link>
+	</linkedResources>
+</projectDescription>
diff --git a/bsp/stm32/stm32f103-dofly-M3S/.settings/language.settings.xml b/bsp/stm32/stm32f103-dofly-M3S/.settings/language.settings.xml
new file mode 100644
index 0000000000000000000000000000000000000000..5d472976343493ba78e4baeba0400b3d8d16f92f
--- /dev/null
+++ b/bsp/stm32/stm32f103-dofly-M3S/.settings/language.settings.xml
@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<project>
+	<configuration id="ilg.gnuarmeclipse.managedbuild.cross.config.elf.debug.553091094" name="Debug">
+		<extension point="org.eclipse.cdt.core.LanguageSettingsProvider">
+			<provider copy-of="extension" id="org.eclipse.cdt.ui.UserLanguageSettingsProvider"/>
+			<provider-reference id="org.eclipse.cdt.core.ReferencedProjectsLanguageSettingsProvider" ref="shared-provider"/>
+			<provider-reference id="org.eclipse.cdt.managedbuilder.core.MBSLanguageSettingsProvider" ref="shared-provider"/>
+			<provider class="org.eclipse.cdt.managedbuilder.language.settings.providers.GCCBuiltinSpecsDetector" console="false" env-hash="-631187056492398907" id="ilg.gnuarmeclipse.managedbuild.cross.GCCBuiltinSpecsDetector" keep-relative-paths="false" name="CDT ARM Cross GCC Built-in Compiler Settings " parameter="${COMMAND} ${FLAGS} ${cross_toolchain_flags} -E -P -v -dD &quot;${INPUTS}&quot;" prefer-non-shared="true">
+				<language-scope id="org.eclipse.cdt.core.gcc"/>
+				<language-scope id="org.eclipse.cdt.core.g++"/>
+			</provider>
+		</extension>
+	</configuration>
+</project>
diff --git a/bsp/stm32/stm32f103-dofly-M3S/.settings/org.eclipse.core.runtime.prefs b/bsp/stm32/stm32f103-dofly-M3S/.settings/org.eclipse.core.runtime.prefs
new file mode 100644
index 0000000000000000000000000000000000000000..b36aae6fb2a4e8309f6c2299be466d8774582ed4
--- /dev/null
+++ b/bsp/stm32/stm32f103-dofly-M3S/.settings/org.eclipse.core.runtime.prefs
@@ -0,0 +1,3 @@
+content-types/enabled=true
+content-types/org.eclipse.cdt.core.asmSource/file-extensions=s
+eclipse.preferences.version=1
diff --git a/bsp/stm32/stm32f103-dofly-M3S/makefile.targets b/bsp/stm32/stm32f103-dofly-M3S/makefile.targets
new file mode 100644
index 0000000000000000000000000000000000000000..a00129bd90590dcf655a0e6c5ac8f530e7b5c383
--- /dev/null
+++ b/bsp/stm32/stm32f103-dofly-M3S/makefile.targets
@@ -0,0 +1,4 @@
+clean2:
+	-$(RM) $(CC_DEPS)$(C++_DEPS)$(C_UPPER_DEPS)$(CXX_DEPS)$(SECONDARY_FLASH)$(SECONDARY_SIZE)$(ASM_DEPS)$(S_UPPER_DEPS)$(C_DEPS)$(CPP_DEPS)
+	-$(RM) $(OBJS) *.elf
+	-@echo ' '
\ No newline at end of file