mirror of
https://github.com/portapack-mayhem/mayhem-firmware.git
synced 2024-12-15 12:38:11 +00:00
75 lines
1.7 KiB
C++
75 lines
1.7 KiB
C++
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/*
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* Copyright (C) 2014 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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#include "rssi.hpp"
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#include <cstdint>
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#include "adc.hpp"
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#include "rssi_dma.hpp"
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#include "utility.hpp"
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#include "hal.h"
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using namespace lpc43xx;
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#include "hackrf_hal.hpp"
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using namespace hackrf::one;
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#include "portapack_adc.hpp"
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namespace rf {
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namespace rssi {
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constexpr uint8_t adc1_sel = (1 << portapack::adc1_rssi_input);
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const auto adc1_interrupt_mask = flp2(adc1_sel);
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constexpr adc::CR adc1_cr {
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.sel = adc1_sel,
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.clkdiv = 49, /* 400kHz sample rate, 2.5us/sample @ 200MHz PCLK */
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.resolution = 9, /* Ten clocks */
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.edge = 0,
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};
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constexpr adc::Config adc1_config {
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.cr = adc1_cr,
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};
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void init() {
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adc1.clock_enable();
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adc1.interrupts_disable();
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adc1.power_up(adc1_config);
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adc1.interrupts_enable(adc1_interrupt_mask);
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dma::init();
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}
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void start() {
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dma::enable();
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adc1.start_burst();
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}
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void stop() {
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dma::disable();
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adc1.stop_burst();
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}
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} /* namespace rssi */
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} /* namespace rf */
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