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TheLegendaryJedi
63 lines
2.8 KiB
C++
63 lines
2.8 KiB
C++
/****************************************************************************
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*
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* Copyright (C) 2016 PX4 Development Team. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name PX4 nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************/
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#include <px4_arch/io_timer_hw_description.h>
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/* IO Timers normally free-run at 1MHz
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* Here we make adjustments to the Frequency that sets the timer's prescale
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* so that the prescale is set to 0
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*/
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#define TIMx_CLKIN 1000000
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static inline constexpr io_timers_t initIOTimerOverrideClockFreq(Timer::Timer timer)
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{
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io_timers_t ret = initIOTimer(timer);
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ret.clock_freq = TIMx_CLKIN;
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return ret;
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}
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constexpr io_timers_t io_timers[MAX_IO_TIMERS] = {
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initIOTimerOverrideClockFreq(Timer::Timer2),
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initIOTimerOverrideClockFreq(Timer::Timer4),
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};
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constexpr timer_io_channels_t timer_io_channels[MAX_TIMER_IO_CHANNELS] = {
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initIOTimerChannel(io_timers, {Timer::Timer2, Timer::Channel2}, {GPIO::PortA, GPIO::Pin1}),
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initIOTimerChannel(io_timers, {Timer::Timer2, Timer::Channel4}, {GPIO::PortB, GPIO::Pin11}),
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initIOTimerChannel(io_timers, {Timer::Timer2, Timer::Channel1}, {GPIO::PortA, GPIO::Pin15}),
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initIOTimerChannel(io_timers, {Timer::Timer4, Timer::Channel4}, {GPIO::PortB, GPIO::Pin9}),
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};
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constexpr io_timers_channel_mapping_t io_timers_channel_mapping =
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initIOTimerChannelMapping(io_timers, timer_io_channels);
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