/* * Copyright (C) 2014 Jared Boone, ShareBrained Technology, Inc. * * This file is part of PortaPack. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2, or (at your option) * any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; see the file COPYING. If not, write to * the Free Software Foundation, Inc., 51 Franklin Street, * Boston, MA 02110-1301, USA. */ #include "rssi.hpp" #include <cstdint> #include "adc.hpp" #include "rssi_dma.hpp" #include "utility.hpp" #include "hal.h" using namespace lpc43xx; #include "hackrf_hal.hpp" using namespace hackrf::one; #include "portapack_adc.hpp" namespace rf { namespace rssi { constexpr uint8_t adc1_sel = (1 << portapack::adc1_rssi_input); const auto adc1_interrupt_mask = flp2(adc1_sel); constexpr adc::CR adc1_cr { .sel = adc1_sel, .clkdiv = 49, /* 400kHz sample rate, 2.5us/sample @ 200MHz PCLK */ .resolution = 9, /* Ten clocks */ .edge = 0, }; constexpr adc::Config adc1_config { .cr = adc1_cr, }; void init() { adc1::clock_enable(); adc1::interrupts_disable(); adc1::power_up(adc1_config); adc1::interrupts_enable(adc1_interrupt_mask); dma::init(); } void start() { dma::enable(); adc1::start_burst(); } void stop() { dma::disable(); adc1::stop_burst(); } } /* namespace rssi */ } /* namespace rf */