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)
66 lines
1.7 KiB
C
66 lines
1.7 KiB
C
/**************************************************************************//**
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* @file system_ARMv81MML.h
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* @brief CMSIS Device System Header File for
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* Armv8.1-M Mainline Device Series
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* @version V1.0.2
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* @date 11. July 2022
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******************************************************************************/
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/*
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* Copyright (c) 2009-2022 Arm Limited. All rights reserved.
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Licensed under the Apache License, Version 2.0 (the License); you may
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* 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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* 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, WITHOUT
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* 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 SYSTEM_ARMv81MML_H
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#define SYSTEM_ARMv81MML_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include <stdint.h>
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/**
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\brief Exception / Interrupt Handler Function Prototype
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*/
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typedef void(*VECTOR_TABLE_Type)(void);
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/**
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\brief System Clock Frequency (Core Clock)
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*/
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extern uint32_t SystemCoreClock;
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/**
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\brief Setup the microcontroller system.
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Initialize the System and update the SystemCoreClock variable.
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*/
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extern void SystemInit (void);
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/**
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\brief Update SystemCoreClock variable.
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Updates the SystemCoreClock with current core Clock retrieved from cpu registers.
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*/
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extern void SystemCoreClockUpdate (void);
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#ifdef __cplusplus
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}
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#endif
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#endif /* SYSTEM_ARMv81MML_H */
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