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)
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radio.h
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radio.h
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/* 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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#ifndef RADIO_H
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#define RADIO_H
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#include <stdbool.h>
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#include <stdint.h>
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#include "dcs.h"
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#include "frequencies.h"
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enum {
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RADIO_CHANNEL_UP = 0x01u,
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RADIO_CHANNEL_DOWN = 0xFFu,
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};
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enum {
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BANDWIDTH_WIDE = 0,
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BANDWIDTH_NARROW
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};
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enum PTT_ID_t {
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PTT_ID_OFF = 0, // OFF
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PTT_ID_TX_UP, // BEGIN OF TX
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PTT_ID_TX_DOWN, // END OF TX
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PTT_ID_BOTH, // BOTH
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PTT_ID_APOLLO // Apolo quindar tones
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};
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typedef enum PTT_ID_t PTT_ID_t;
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enum VfoState_t
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{
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VFO_STATE_NORMAL = 0,
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VFO_STATE_BUSY,
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VFO_STATE_BAT_LOW,
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VFO_STATE_TX_DISABLE,
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VFO_STATE_TIMEOUT,
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VFO_STATE_ALARM,
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VFO_STATE_VOLTAGE_HIGH,
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_VFO_STATE_LAST_ELEMENT
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};
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typedef enum VfoState_t VfoState_t;
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typedef enum {
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MODULATION_FM,
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MODULATION_AM,
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MODULATION_USB,
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#ifdef ENABLE_BYP_RAW_DEMODULATORS
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MODULATION_BYP,
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MODULATION_RAW,
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#endif
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MODULATION_UKNOWN
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} ModulationMode_t;
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extern const char gModulationStr[MODULATION_UKNOWN][4];
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typedef struct
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{
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uint32_t Frequency;
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DCS_CodeType_t CodeType;
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uint8_t Code;
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uint8_t Padding[2];
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} FREQ_Config_t;
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typedef struct VFO_Info_t
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{
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FREQ_Config_t freq_config_RX;
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FREQ_Config_t freq_config_TX;
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// this is for a purpose of the FrequencyReverse function
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// it points to freq_config_RX normally and to freq_config_TX if reverse function is active
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//
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FREQ_Config_t *pRX;
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// this is for a purpose of the FrequencyReverse function
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// it points to freq_config_TX normally and to freq_config_RX if reverse function is active
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FREQ_Config_t *pTX;
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uint32_t TX_OFFSET_FREQUENCY;
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uint16_t StepFrequency;
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uint8_t CHANNEL_SAVE;
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uint8_t TX_OFFSET_FREQUENCY_DIRECTION;
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uint8_t SquelchOpenRSSIThresh;
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uint8_t SquelchOpenNoiseThresh;
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uint8_t SquelchCloseGlitchThresh;
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uint8_t SquelchCloseRSSIThresh;
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uint8_t SquelchCloseNoiseThresh;
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uint8_t SquelchOpenGlitchThresh;
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STEP_Setting_t STEP_SETTING;
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uint8_t OUTPUT_POWER;
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uint8_t TXP_CalculatedSetting;
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bool FrequencyReverse;
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uint8_t SCRAMBLING_TYPE;
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uint8_t CHANNEL_BANDWIDTH;
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uint8_t SCANLIST1_PARTICIPATION;
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uint8_t SCANLIST2_PARTICIPATION;
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uint8_t Band;
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#ifdef ENABLE_DTMF_CALLING
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uint8_t DTMF_DECODING_ENABLE;
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#endif
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PTT_ID_t DTMF_PTT_ID_TX_MODE;
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uint8_t BUSY_CHANNEL_LOCK;
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ModulationMode_t Modulation;
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uint8_t Compander;
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char Name[16];
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} VFO_Info_t;
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// Settings of the main VFO that is selected by the user
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// The pointer follows gEeprom.TX_VFO index
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extern VFO_Info_t *gTxVfo;
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// Settings of the actual VFO that is now used for RX,
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// It is being alternated by dual watch, and flipped by crossband
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// The pointer follows gEeprom.RX_VFO
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extern VFO_Info_t *gRxVfo;
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// Equal to gTxVfo unless dual watch changes it on incomming transmition (this can only happen when XB off and DW on)
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extern VFO_Info_t *gCurrentVfo;
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extern DCS_CodeType_t gCurrentCodeType;
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extern VfoState_t VfoState[2];
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bool RADIO_CheckValidChannel(uint16_t channel, bool checkScanList, uint8_t scanList);
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uint8_t RADIO_FindNextChannel(uint8_t ChNum, int8_t Direction, bool bCheckScanList, uint8_t RadioNum);
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void RADIO_InitInfo(VFO_Info_t *pInfo, const uint8_t ChannelSave, const uint32_t Frequency);
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void RADIO_ConfigureChannel(const unsigned int VFO, const unsigned int configure);
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void RADIO_ConfigureSquelchAndOutputPower(VFO_Info_t *pInfo);
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void RADIO_ApplyOffset(VFO_Info_t *pInfo);
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void RADIO_SelectVfos(void);
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void RADIO_SetupRegisters(bool switchToForeground);
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#ifdef ENABLE_NOAA
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void RADIO_ConfigureNOAA(void);
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#endif
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void RADIO_SetTxParameters(void);
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void RADIO_SetupAGC(bool listeningAM, bool disable);
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void RADIO_SetModulation(ModulationMode_t modulation);
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void RADIO_SetVfoState(VfoState_t State);
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void RADIO_PrepareTX(void);
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void RADIO_SendCssTail(void);
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void RADIO_PrepareCssTX(void);
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void RADIO_SendEndOfTransmission(void);
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#endif
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