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/RTOS/RTX/UserCodeTemplates/osObjects.h

@@ -0,0 +1,70 @@
+/*----------------------------------------------------------------------------
+ * osObjects.h: CMSIS-RTOS global object definitions for an application
+ *----------------------------------------------------------------------------
+ *
+ * This header file defines global RTOS objects used throughout a project
+ *
+ * #define osObjectsPublic indicates that objects are defined; without that
+ * definition the objects are defined as external symbols.
+ *
+ *--------------------------------------------------------------------------*/
+
+
+#ifndef __osObjects
+#define __osObjects
+
+#if (!defined (osObjectsPublic))
+#define osObjectsExternal           // define RTOS objects with extern attribute
+#endif
+
+#include "cmsis_os.h"               // CMSIS RTOS header file
+
+
+// global 'thread' functions ---------------------------------------------------
+/* 
+Example:
+extern void sample_name (void const *argument);         // thread function
+
+osThreadId tid_sample_name;                             // thread id
+osThreadDef (sample_name, osPriorityNormal, 1, 0);      // thread object
+*/
+
+
+// global 'semaphores' ----------------------------------------------------------
+/* 
+Example:
+osSemaphoreId sid_sample_name;                          // semaphore id
+osSemaphoreDef (sample_name);                           // semaphore object
+*/
+
+
+// global 'memory pools' --------------------------------------------------------
+/* 
+Example:
+typedef struct sample_name type_sample_name;            // object data type
+
+osPoolId mpid_sample_name;                              // memory pool id
+osPoolDef (sample_name, 16, type_sample_name);          // memory pool object
+*/
+
+
+// global 'message queues' -------------------------------------------------------
+/* 
+Example:
+typedef struct sample_name type_sample_name;            // object data type
+
+osMessageQId mid_sample_name;                           // message queue id
+osMessageQDef (sample_name, 16, type_sample_name);      // message queue object
+*/
+
+
+// global 'mail queues' ----------------------------------------------------------
+/* 
+Example:
+typedef struct sample_name type_sample_name;            // object data type
+
+osMailQId qid_sample_name;                              // mail queue id
+osMailQDef (sample_name, 16, type_sample_name);         // mail queue object
+*/
+
+#endif  // __osObjects