UA1ZBE Custom Firmware v1.0

Features:
- VFO mode with direct frequency input
- POCSAG decoder (512/1200 baud) with BCH(31,21) correction
- Full-screen Spectrum analyzer
- FM Radio receiver
- RSSI signal indicator overlay
- Custom boot splash (UA1ZBE / POCSAG pager / build date)

Architecture:
- app/mode.c — mode dispatcher (VFO/POCSAG/Spectrum/FM)
- app/boot_splash.c — 2-second boot splash
- app/pocsag/ — POCSAG decoder + BCH correction
- app/display_rssi.c — RSSI indicator
- main.c — entry point with custom init
- syscalls.c — bare-metal _sbrk stub

Build: arm-none-eabi-gcc -Os -flto -Wall -Werror -Wextra
Size: 57.9KB Flash / 3.6KB RAM

Controls:
- 0-9: Direct frequency input (VFO)
- SK2: POCSAG mode
- SK1: Spectrum analyzer
- 0: FM Radio
- EXIT: Return to VFO
- F/*: Toggle 512/1200 baud (in POCSAG)

utils/misc.bpr

@@ -0,0 +1,119 @@
+<?xml version='1.0' encoding='utf-8' ?>
+<!-- C++Builder XML Project -->
+<PROJECT>
+  <MACROS>
+    <VERSION value="BCB.06.00"/>
+    <PROJECT value="misc.exe"/>
+    <OBJFILES value="main.obj"/>
+    <RESFILES value="misc.res"/>
+    <IDLFILES value=""/>
+    <IDLGENFILES value=""/>
+    <DEFFILE value=""/>
+    <RESDEPEN value="$(RESFILES)"/>
+    <LIBFILES value=""/>
+    <LIBRARIES value=""/>
+    <SPARELIBS value=""/>
+    <PACKAGES value="vcl.bpi rtl.bpi dbrtl.bpi vcldb.bpi vclx.bpi bdertl.bpi dsnap.bpi cds.bpi 
+      bcbsmp.bpi vclie.bpi xmlrtl.bpi inet.bpi inetdbbde.bpi inetdbxpress.bpi 
+      nmfast.bpi webdsnap.bpi bcbie.bpi dclocx.bpi dbexpress.bpi dbxcds.bpi 
+      indy.bpi bcb2kaxserver.bpi adortl.bpi vcldbx.bpi ibxpress.bpi bdecds.bpi 
+      qrpt.bpi teeui.bpi teedb.bpi tee.bpi dss.bpi teeqr.bpi visualclx.bpi 
+      visualdbclx.bpi dsnapcrba.bpi dsnapcon.bpi inetdb.bpi websnap.bpi 
+      soaprtl.bpi"/>
+    <PATHCPP value=".;"/>
+    <PATHPAS value=".;"/>
+    <PATHRC value=".;"/>
+    <PATHASM value=".;"/>
+    <DEBUGLIBPATH value="$(BCB)\lib\debug"/>
+    <RELEASELIBPATH value="$(BCB)\lib\release"/>
+    <LINKER value="ilink32"/>
+    <USERDEFINES value="_DEBUG"/>
+    <SYSDEFINES value="NO_STRICT;_NO_VCL;_RTLDLL;USEPACKAGES"/>
+    <MAINSOURCE value="misc.bpf"/>
+    <INCLUDEPATH value="..\..\uv-k5-firmware\uv-k5-firmware-custom\misc;$(BCB)\include;$(BCB)\include\vcl"/>
+    <LIBPATH value="&quot;..\..\uv-k5-firmware\uv-k5-firmware-custom\misc&quot;;$(BCB)\lib\obj;$(BCB)\lib"/>
+    <WARNINGS value="-w-par"/>
+    <OTHERFILES value=""/>
+  </MACROS>
+  <OPTIONS>
+    <IDLCFLAGS value="-I..\..\uv-k5-firmware\uv-k5-firmware-custom\misc -I$(BCB)\include 
+      -I$(BCB)\include\vcl -src_suffix cpp -D_DEBUG -boa"/>
+    <CFLAG1 value="-Od -H=$(BCB)\lib\vcl60.csm -Hc -Vx -Ve -X- -r- -a8 -b- -k -y -v -vi- -tWC 
+      -tWM -c"/>
+    <PFLAGS value="-$YD -$W -$O- -$A8 -v -JPHNE -M"/>
+    <RFLAGS value=""/>
+    <AFLAGS value="/mx /w2 /zd"/>
+    <LFLAGS value="-D&quot;&quot; -ap -Tpe -x -Gn -v"/>
+    <OTHERFILES value=""/>
+  </OPTIONS>
+  <LINKER>
+    <ALLOBJ value="c0x32.obj $(PACKAGES) $(OBJFILES)"/>
+    <ALLRES value="$(RESFILES)"/>
+    <ALLLIB value="$(LIBFILES) $(LIBRARIES) import32.lib cw32mti.lib"/>
+    <OTHERFILES value=""/>
+  </LINKER>
+  <FILELIST>
+      <FILE FILENAME="misc.res" FORMNAME="" UNITNAME="misc.res" CONTAINERID="ResTool" DESIGNCLASS="" LOCALCOMMAND=""/>
+      <FILE FILENAME="misc.bpf" FORMNAME="" UNITNAME="misc" CONTAINERID="BPF" DESIGNCLASS="" LOCALCOMMAND=""/>
+      <FILE FILENAME="main.cpp" FORMNAME="" UNITNAME="main" CONTAINERID="CCompiler" DESIGNCLASS="" LOCALCOMMAND=""/>
+  </FILELIST>
+  <BUILDTOOLS>
+  </BUILDTOOLS>
+
+  <IDEOPTIONS>
+[Version Info]
+IncludeVerInfo=1
+AutoIncBuild=0
+MajorVer=0
+MinorVer=0
+Release=1
+Build=0
+Debug=0
+PreRelease=0
+Special=0
+Private=0
+DLL=0
+Locale=2057
+CodePage=1252
+
+[Version Info Keys]
+CompanyName=
+FileDescription=
+FileVersion=0.0.1.0
+InternalName=
+LegalCopyright=
+LegalTrademarks=
+OriginalFilename=
+ProductName=
+ProductVersion=1.0.0.0
+Comments=
+
+[Excluded Packages]
+c:\program files (x86)\borland\cbuilder6\Bin\dclite60.bpl=Borland Integrated Translation Environment
+
+[Debugging]
+DebugSourceDirs=$(BCB)\source\vcl
+
+[Parameters]
+RunParams=
+Launcher=
+UseLauncher=0
+DebugCWD=
+HostApplication=
+RemoteHost=
+RemotePath=
+RemoteLauncher=
+RemoteCWD=
+RemoteDebug=0
+
+[Compiler]
+ShowInfoMsgs=0
+LinkDebugVcl=0
+LinkCGLIB=0
+
+[CORBA]
+AddServerUnit=1
+AddClientUnit=1
+PrecompiledHeaders=1
+  </IDEOPTIONS>
+</PROJECT>