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)
51 lines
1.1 KiB
C
51 lines
1.1 KiB
C
/* UA1ZBE Custom Firmware - Mode Dispatcher
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*
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* Manages switching between operating modes:
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* MODE_VFO — Main VFO mode (default)
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* MODE_POCSAG — POCSAG decoder
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* MODE_SPECTRUM — Spectrum analyzer
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* MODE_FM — FM radio receiver
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*
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* Key mappings:
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* KEY_SIDE2 (SK2) → POCSAG mode
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* KEY_SIDE1 (SK1) → Spectrum mode
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* KEY_EXIT → Return to VFO
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* KEY_0 (short) → FM mode
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*/
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#ifndef APP_MODE_H
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#define APP_MODE_H
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#include <stdint.h>
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#include <stdbool.h>
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/* Operating modes */
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typedef enum {
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MODE_VFO = 0,
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MODE_POCSAG,
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MODE_SPECTRUM,
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MODE_FM,
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MODE_COUNT
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} op_mode_t;
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/* Get current mode */
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op_mode_t MODE_GetCurrent(void);
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/* Switch to a mode */
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void MODE_Switch(op_mode_t mode);
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/* Initialize mode dispatcher (call once at boot) */
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void MODE_Init(void);
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/* Call from 10ms timeslice */
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void MODE_TimeSlice10ms(void);
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/* Call from 500ms timeslice */
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void MODE_TimeSlice500ms(void);
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/* Process key press for mode switching.
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* Returns true if the key was consumed by mode switch. */
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bool MODE_ProcessKey(int key, bool pressed, bool held);
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#endif
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