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)

external/CMSIS_5/CMSIS/DoxyGen/DSP/html/dynsections.js

@@ -0,0 +1,97 @@
+function toggleVisibility(linkObj)
+{
+ var base = $(linkObj).attr('id');
+ var summary = $('#'+base+'-summary');
+ var content = $('#'+base+'-content');
+ var trigger = $('#'+base+'-trigger');
+ var src=$(trigger).attr('src');
+ if (content.is(':visible')===true) {
+   content.hide();
+   summary.show();
+   $(linkObj).addClass('closed').removeClass('opened');
+   $(trigger).attr('src',src.substring(0,src.length-8)+'closed.png');
+ } else {
+   content.show();
+   summary.hide();
+   $(linkObj).removeClass('closed').addClass('opened');
+   $(trigger).attr('src',src.substring(0,src.length-10)+'open.png');
+ } 
+ return false;
+}
+
+function updateStripes()
+{
+  $('table.directory tr').
+       removeClass('even').filter(':visible:even').addClass('even');
+}
+function toggleLevel(level)
+{
+  $('table.directory tr').each(function(){ 
+    var l = this.id.split('_').length-1;
+    var i = $('#img'+this.id.substring(3));
+    var a = $('#arr'+this.id.substring(3));
+    if (l<level+1) {
+      i.attr('src','ftv2folderopen.png');
+      a.attr('src','ftv2mnode.png');
+      $(this).show();
+    } else if (l==level+1) {
+      i.attr('src','ftv2folderclosed.png');
+      a.attr('src','ftv2pnode.png');
+      $(this).show();
+    } else {
+      $(this).hide();
+    }
+  });
+  updateStripes();
+}
+
+function toggleFolder(id)
+{
+  //The clicked row
+  var currentRow = $('#row_'+id);
+  var currentRowImages = currentRow.find("img");
+
+  //All rows after the clicked row
+  var rows = currentRow.nextAll("tr");
+
+  //Only match elements AFTER this one (can't hide elements before)
+  var childRows = rows.filter(function() {
+    var re = new RegExp('^row_'+id+'\\d+_$', "i"); //only one sub
+    return this.id.match(re);
+  });
+
+  //First row is visible we are HIDING
+  if (childRows.filter(':first').is(':visible')===true) {
+    currentRowImages.filter("[id^=arr]").attr('src', 'ftv2pnode.png');
+    currentRowImages.filter("[id^=img]").attr('src', 'ftv2folderclosed.png');
+    rows.filter("[id^=row_"+id+"]").hide();
+  } else { //We are SHOWING
+    //All sub images
+    var childImages = childRows.find("img");
+    var childImg = childImages.filter("[id^=img]");
+    var childArr = childImages.filter("[id^=arr]");
+
+    currentRow.find("[id^=arr]").attr('src', 'ftv2mnode.png'); //open row
+    currentRow.find("[id^=img]").attr('src', 'ftv2folderopen.png'); //open row
+    childImg.attr('src','ftv2folderclosed.png'); //children closed
+    childArr.attr('src','ftv2pnode.png'); //children closed
+    childRows.show(); //show all children
+  }
+  updateStripes();
+}
+
+
+function toggleInherit(id)
+{
+  var rows = $('tr.inherit.'+id);
+  var img = $('tr.inherit_header.'+id+' img');
+  var src = $(img).attr('src');
+  if (rows.filter(':first').is(':visible')===true) {
+    rows.css('display','none');
+    $(img).attr('src',src.substring(0,src.length-8)+'closed.png');
+  } else {
+    rows.css('display','table-row'); // using show() causes jump in firefox
+    $(img).attr('src',src.substring(0,src.length-10)+'open.png');
+  }
+}
+