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8b02e40602
...so it continues when M4 is shut down. It's not as pretty as using DMA, but it's far simpler, even if it involves letting the ADC run continuously and taking the last samples even if not synchronizing to the phase of the sampling of the channels.
47 lines
1.6 KiB
C++
47 lines
1.6 KiB
C++
/*
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* Copyright (C) 2015 Jared Boone, ShareBrained Technology, Inc.
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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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#ifndef __PORTAPACK_SHARED_MEMORY_H__
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#define __PORTAPACK_SHARED_MEMORY_H__
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#include <cstdint>
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#include <cstddef>
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#include "message_queue.hpp"
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/* NOTE: These structures must be located in the same location in both M4 and M0 binaries */
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struct SharedMemory {
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static constexpr size_t application_queue_k = 11;
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static constexpr size_t app_local_queue_k = 11;
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uint8_t application_queue_data[1 << application_queue_k] { 0 };
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uint8_t app_local_queue_data[1 << app_local_queue_k] { 0 };
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const Message* volatile baseband_message { nullptr };
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MessageQueue application_queue { application_queue_data, application_queue_k };
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MessageQueue app_local_queue { app_local_queue_data, app_local_queue_k };
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char m4_panic_msg[32] { 0 };
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};
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extern SharedMemory& shared_memory;
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#endif/*__PORTAPACK_SHARED_MEMORY_H__*/
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