ua1zbe
a1206d6fd4
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)
113 lines
3.3 KiB
C
113 lines
3.3 KiB
C
/* Copyright 2023 Dual Tachyon
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* https://github.com/DualTachyon
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "app/chFrScanner.h"
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#ifdef ENABLE_FMRADIO
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#include "app/fm.h"
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#endif
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#include "app/scanner.h"
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#include "audio.h"
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#include "functions.h"
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#include "helper/battery.h"
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#include "misc.h"
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#include "settings.h"
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#include "driver/backlight.h"
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#include "bsp/dp32g030/gpio.h"
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#include "driver/gpio.h"
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#define DECREMENT(cnt) \
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do { \
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if (cnt > 0) \
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cnt--; \
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} while (0)
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#define DECREMENT_AND_TRIGGER(cnt, flag) \
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do { \
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if (cnt > 0) \
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if (--cnt == 0) \
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flag = true; \
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} while (0)
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static volatile uint32_t gGlobalSysTickCounter;
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void SystickHandler(void);
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// we come here every 10ms
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void SystickHandler(void)
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{
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gGlobalSysTickCounter++;
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gNextTimeslice = true;
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if ((gGlobalSysTickCounter % 50) == 0) {
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gNextTimeslice_500ms = true;
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DECREMENT_AND_TRIGGER(gTxTimerCountdown_500ms, gTxTimeoutReached);
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DECREMENT(gSerialConfigCountDown_500ms);
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}
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if ((gGlobalSysTickCounter & 3) == 0)
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gNextTimeslice40ms = true;
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#ifdef ENABLE_NOAA
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DECREMENT(gNOAACountdown_10ms);
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#endif
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DECREMENT(gFoundCDCSSCountdown_10ms);
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DECREMENT(gFoundCTCSSCountdown_10ms);
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if (gCurrentFunction == FUNCTION_FOREGROUND)
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DECREMENT_AND_TRIGGER(gBatterySaveCountdown_10ms, gSchedulePowerSave);
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if (gCurrentFunction == FUNCTION_POWER_SAVE)
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DECREMENT_AND_TRIGGER(gPowerSave_10ms, gPowerSaveCountdownExpired);
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if (gScanStateDir == SCAN_OFF && !gCssBackgroundScan && gEeprom.DUAL_WATCH != DUAL_WATCH_OFF)
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if (gCurrentFunction != FUNCTION_MONITOR && gCurrentFunction != FUNCTION_TRANSMIT && gCurrentFunction != FUNCTION_RECEIVE)
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DECREMENT_AND_TRIGGER(gDualWatchCountdown_10ms, gScheduleDualWatch);
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#ifdef ENABLE_NOAA
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if (gScanStateDir == SCAN_OFF && !gCssBackgroundScan && gEeprom.DUAL_WATCH == DUAL_WATCH_OFF)
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if (gIsNoaaMode && gCurrentFunction != FUNCTION_MONITOR && gCurrentFunction != FUNCTION_TRANSMIT)
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if (gCurrentFunction != FUNCTION_RECEIVE)
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DECREMENT_AND_TRIGGER(gNOAA_Countdown_10ms, gScheduleNOAA);
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#endif
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if (gScanStateDir != SCAN_OFF)
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if (gCurrentFunction != FUNCTION_MONITOR && gCurrentFunction != FUNCTION_TRANSMIT)
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DECREMENT_AND_TRIGGER(gScanPauseDelayIn_10ms, gScheduleScanListen);
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DECREMENT_AND_TRIGGER(gTailToneEliminationCountdown_10ms, gFlagTailToneEliminationComplete);
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#ifdef ENABLE_VOICE
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DECREMENT_AND_TRIGGER(gCountdownToPlayNextVoice_10ms, gFlagPlayQueuedVoice);
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#endif
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#ifdef ENABLE_FMRADIO
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if (gFM_ScanState != FM_SCAN_OFF && gCurrentFunction != FUNCTION_MONITOR)
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if (gCurrentFunction != FUNCTION_TRANSMIT && gCurrentFunction != FUNCTION_RECEIVE)
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DECREMENT_AND_TRIGGER(gFmPlayCountdown_10ms, gScheduleFM);
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#endif
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#ifdef ENABLE_VOX
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DECREMENT(gVoxStopCountdown_10ms);
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#endif
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DECREMENT(boot_counter_10ms);
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}
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