168 lines
4.1 KiB
C
168 lines
4.1 KiB
C
/*
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* This file is part of the libopencm3 project.
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*
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* Copyright (C) 2015 Kuldeep Singh Dhaka <kuldeepdhaka9@gmail.com>
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*
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* This library is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY
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{
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} without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this library. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <libopencm3/efm32/dac.h>
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/**
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* Set DAC refresh cycle
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* @param[in] dac DAC (use DACx)
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* @param[in] refrsel (use DAC_CTRL_REFRSEL_*CYCLES)
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* @see dac_disable_auto_refresh()
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* @see dac_enable_auto_refresh()
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*/
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void dac_set_refresh_cycle(uint32_t dac, uint32_t refrsel)
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{
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DAC_CTRL(dac) = (DAC_CTRL(dac) & ~DAC_CTRL_REFRSEL_MASK) | refrsel;
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}
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/**
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* Set DAC clock prescaler
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* @param[in] dac DAC (use DACx)
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* @param[in] presc Prescaler (use DAC_CTRL_PRESC_*)
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*/
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void dac_set_clock_prescaler(uint32_t dac, uint32_t presc)
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{
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DAC_CTRL(dac) = (DAC_CTRL(dac) & ~DAC_CTRL_PRESC_MASK) | presc;
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}
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/**
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* Set DAC reference
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* @param[in] dac DAC (use DACx)
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* @param[in] refsel Reference (DAC_CTRL_REFSEL_*)
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*/
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void dac_set_reference(uint32_t dac, uint32_t refsel)
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{
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DAC_CTRL(dac) = (DAC_CTRL(dac) & ~DAC_CTRL_REFSEL_MASK) | refsel;
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}
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/**
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* Set DAC output mode
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* @param[in] dac DAC (use DACx)
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* @param[in] outmode Output mode (DAC_CTRL_OUTMODE_*)
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*/
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void dac_set_out_mode(uint32_t dac, uint32_t outmode)
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{
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DAC_CTRL(dac) = (DAC_CTRL(dac) & ~DAC_CTRL_OUTMODE_MASK) | outmode;
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}
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/**
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* Set conversion mode
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* @param[in] dac DAC (use DACx)
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* @param[in] convmode Conversion mode (use DAC_CTRL_CONVMODE_*)
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*/
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void dac_set_conversion_mode(uint32_t dac, uint32_t convmode)
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{
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DAC_CTRL(dac) = (DAC_CTRL(dac) & ~DAC_CTRL_CONVMODE_MASK) | convmode;
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}
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/**
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* Enable Sine wave on output
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* @param[in] dac DAC (use DACx)
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*/
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void dac_enable_sine(uint32_t dac)
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{
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DAC_CTRL(dac) |= DAC_CTRL_SINMODE;
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}
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/**
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* Disable Sine wave on output
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* @param[in] dac DAC (use DACx)
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*/
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void dac_disable_sine(uint32_t dac)
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{
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DAC_CTRL(dac) &= ~DAC_CTRL_SINMODE;
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}
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/**
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* Set PRS trigger source on DAC channel
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* @param[in] dac DAC (use DACx)
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* @param[in] dac_ch DAC Channel (use DAC_CHx)
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* @param[in] prs_ch PRS Channel (use PRS_CHx)
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*/
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void dac_set_prs_trigger(uint32_t dac, enum dac_ch dac_chan, enum prs_ch prs_chan)
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{
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uint32_t ch_ctrl = DAC_CHx_CTRL(dac, dac_chan);
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ch_ctrl &= DAC_CH_CTRL_PRSSEL_MASK;
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ch_ctrl |= DAC_CH_CTRL_PRSSEL(prs_chan);
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DAC_CHx_CTRL(dac, dac_chan) = ch_ctrl;
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}
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/**
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* Enable PRS triggerring
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* @param[in] dac DAC (use DACx)
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* @param[in] dac_ch DAC Channel (use DAC_CHx)
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*/
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void dac_enable_prs_trigger(uint32_t dac, enum dac_ch ch)
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{
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DAC_CHx_CTRL(dac, ch) |= DAC_CH_CTRL_PRSEN;
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}
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/**
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* Disable PRS triggerring
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* @param[in] dac DAC (use DACx)
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* @param[in] dac_ch DAC Channel (use DAC_CHx)
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*/
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void dac_disable_prs_trigger(uint32_t dac, enum dac_ch ch)
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{
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DAC_CHx_CTRL(dac, ch) &= ~DAC_CH_CTRL_PRSEN;
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}
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/**
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* Enable auto refresh
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* @param[in] dac DAC (use DACx)
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* @param[in] dac_ch DAC Channel (use DAC_CHx)
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*/
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void dac_enable_auto_refresh(uint32_t dac, enum dac_ch ch)
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{
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DAC_CHx_CTRL(dac, ch) |= DAC_CH_CTRL_REFREN;
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}
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/**
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* Disable auto refresh
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* @param[in] dac DAC (use DACx)
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* @param[in] dac_ch DAC Channel (use DAC_CHx)
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*/
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void dac_disable_auto_refresh(uint32_t dac, enum dac_ch ch)
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{
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DAC_CHx_CTRL(dac, ch) &= ~DAC_CH_CTRL_REFREN;
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}
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/**
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* Enable channel
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* @param[in] dac DAC (use DACx)
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* @param[in] dac_ch DAC Channel (use DAC_CHx)
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*/
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void dac_enable_channel(uint32_t dac, enum dac_ch ch)
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{
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DAC_CHx_CTRL(dac, ch) |= DAC_CH_CTRL_EN;
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}
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/**
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* Disable channel
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* @param[in] dac DAC (use DACx)
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* @param[in] dac_ch DAC Channel (use DAC_CHx)
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*/
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void dac_disable_channel(uint32_t dac, enum dac_ch ch)
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{
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DAC_CHx_CTRL(dac, ch) &= ~DAC_CH_CTRL_REFREN;
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}
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