mirror of
https://github.com/portapack-mayhem/mayhem-firmware.git
synced 2026-08-16 21:03:24 +00:00
Sarah Rose
5c2d1d3dfb
Implements MDC-1200 single and double-packet TX as a PPMA external app. Features: - Supports PTT ID, Emergency, Radio Check, Stun/Unstun, Call Alert, Selective Call (1 & 2), Status Request/Response, Remote Monitor, Message - Auto-fills Arg byte on Op selection - AFSK FSK modulation: 1800 Hz mark / 1200 Hz space, 1200 baud - NRZI encoding with Golay FEC per MDC-1200 spec - Tap-to-edit frequency via keypad - Default TX gain of 30 dB - Uses AFSK baseband (same as POCSAG/SAME TX) - All buffers kept off the stack to avoid hard faults in ext app environment * mdc_tx: address PR review feedback - Move MDC helpers into ui::external_app::mdc_tx namespace (drop anonymous namespace) - Use AFSK_TX_SAMPLERATE macro instead of hardcoded 1536000 - Add #include "modems.hpp" explicitly for AFSK_TX_SAMPLERATE - Replace n*8/n*16 pixel positions with UI_POS_X/UI_POS_Y macros - Fix field comments: 'hex bytes' -> 'decimal bytes (0-255)' - Fix TransmitterView frequency_step: 1750000 -> 12500 (12.5kHz NFM step) - Fix MDC preamble: replace leading 0x00 bytes with 0xAA after NRZI encoding stayed 0x00, terminating TX on the first word. 0xAA bytes NRZI-encode to 0xFF (continuous 1800Hz mark tone), which is the standard MDC-1200 preamble and does not trigger the sentinel.
84 lines
2.2 KiB
C++
84 lines
2.2 KiB
C++
/*
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* Copyright (C) 2025 Sarah Rose
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*
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* This file is part of PortaPack.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; see the file COPYING. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street,
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* Boston, MA 02110-1301, USA.
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*/
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#include "ui.hpp"
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#include "ui_mdc_tx.hpp"
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#include "ui_navigation.hpp"
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#include "external_app.hpp"
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namespace ui::external_app::mdc_tx {
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void initialize_app(ui::NavigationView& nav) {
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nav.push<MdcTxView>();
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}
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} // namespace ui::external_app::mdc_tx
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extern "C" {
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__attribute__((section(".external_app.app_mdc_tx.application_information"), used))
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application_information_t _application_information_mdc_tx = {
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/*.memory_location = */ (uint8_t*)0x00000000,
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/*.externalAppEntry = */ ui::external_app::mdc_tx::initialize_app,
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/*.header_version = */ CURRENT_HEADER_VERSION,
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/*.app_version = */ VERSION_MD5,
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/*.app_name = */ "MDC-1200 TX",
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/*.bitmap_data = */ {
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0x00,
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0x00,
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0xFE,
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0x7F,
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0xFF,
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0xFF,
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0xBB,
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0xD0,
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0xFF,
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0xFF,
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0xFF,
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0xFF,
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0x0B,
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0xE1,
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0xFF,
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0xFF,
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0xFF,
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0xFF,
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0xEB,
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0xD0,
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0xFF,
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0xFF,
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0xFE,
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0x7F,
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0x70,
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0x00,
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0x30,
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0x00,
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0x10,
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0x00,
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0x00,
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0x00,
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},
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/*.icon_color = */ ui::Color::orange().v,
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/*.menu_location = */ app_location_t::TX,
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/*.desired_menu_position = */ -1,
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/*.m4_app_tag = */ {'P', 'A', 'F', 'T'},
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/*.m4_app_offset = */ 0x00000000,
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};
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}
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