Update sdcc build steps

.cproject

@@ -13,7 +13,7 @@
 				</extensions>
 			</storageModule>
 			<storageModule moduleId="cdtBuildSystem" version="4.0.0">
-				<configuration artifactExtension="ihx" artifactName="${ProjName}" buildProperties="" cleanCommand="rm -rf" description="" errorParsers="org.eclipse.cdt.core.MakeErrorParser;org.eclipse.cdt.core.GCCErrorParser;org.eclipse.cdt.core.GLDErrorParser;org.eclipse.cdt.core.GASErrorParser" id="cdt.managedbuild.config.sdcc.exe.release.44050159" name="Release" parent="cdt.managedbuild.config.sdcc.exe.release" postbuildStep="packihx ${ProjName}.ihx &gt; ${ProjName}.hex">
+				<configuration artifactExtension="ihx" artifactName="${ProjName}" buildProperties="" cleanCommand="rm -rf" description="" errorParsers="org.eclipse.cdt.core.MakeErrorParser;org.eclipse.cdt.core.GCCErrorParser;org.eclipse.cdt.core.GLDErrorParser;org.eclipse.cdt.core.GASErrorParser" id="cdt.managedbuild.config.sdcc.exe.release.44050159" name="Release" parent="cdt.managedbuild.config.sdcc.exe.release" postbuildStep="packihx ${ProjName}.ihx &gt; ${ProjName}.hex &amp; makebin -p ${ProjName}.ihx ${ProjName}.bin">
 					<folderInfo id="cdt.managedbuild.config.sdcc.exe.release.44050159." name="/" resourcePath="">
 						<toolChain id="cdt.managedbuild.toolchain.sdcc.exe.release.645725452" name="SDCC Tool Chain" superClass="cdt.managedbuild.toolchain.sdcc.exe.release">
 							<targetPlatform archList="all" binaryParser="org.eclipse.cdt.core.ELF" id="cdt.managedbuild.target.sdcc.platform.exe.release.1705936550" name="Release Platform" osList="solaris,linux,hpux,aix,qnx,win32" superClass="cdt.managedbuild.target.sdcc.platform.exe.release"/>
@@ -44,6 +44,9 @@
 							</tool>
 						</toolChain>
 					</folderInfo>
+					<sourceEntries>
+						<entry excluding="OLED" flags="VALUE_WORKSPACE_PATH|RESOLVED" kind="sourcePath" name=""/>
+					</sourceEntries>
 				</configuration>
 			</storageModule>
 			<storageModule moduleId="org.eclipse.cdt.core.externalSettings"/>

.project

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <projectDescription>
-	<name>USB</name>
+	<name>USB_Composite_Device</name>
 	<comment></comment>
 	<projects>
 	</projects>

ch554_conf.c

@@ -134,3 +134,16 @@ void CH554_Init(void) {
 
 	EA = 1;
 }
+
+void putchar(char c) {
+    while (!TI) /* assumes UART is initialized */
+    ;
+    TI = 0;
+    SBUF = c;
+}
+
+char getchar() {
+    while(!RI); /* assumes UART is initialized */
+    RI = 0;
+    return SBUF;
+}