You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
175 lines
4.2 KiB
175 lines
4.2 KiB
2 months ago
|
/** @addtogroup dac_file DAC peripheral API
|
||
|
|
* @ingroup peripheral_apis
|
||
|
|
*/
|
||
|
|
/*
|
||
|
|
* This file is part of the libopencm3 project.
|
||
|
|
*
|
||
|
|
* Copyright (C) 2015 Kuldeep Singh Dhaka <kuldeepdhaka9@gmail.com>
|
||
|
|
*
|
||
|
|
* This library is free software: you can redistribute it and/or modify
|
||
|
|
* it under the terms of the GNU Lesser General Public License as published by
|
||
|
|
* the Free Software Foundation, either version 3 of the License, or
|
||
|
|
* (at your option) any later version.
|
||
|
|
*
|
||
|
|
* This library 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 Lesser General Public License for more details.
|
||
|
|
*
|
||
|
|
* You should have received a copy of the GNU Lesser General Public License
|
||
|
|
* along with this library. If not, see <http://www.gnu.org/licenses/>.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <libopencm3/efm32/dac.h>
|
||
|
|
|
||
|
|
/**@{*/
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Set DAC refresh cycle
|
||
|
|
* @param[in] dac DAC (use DACx)
|
||
|
|
* @param[in] refrsel (use DAC_CTRL_REFRSEL_*CYCLES)
|
||
|
|
* @see dac_disable_auto_refresh()
|
||
|
|
* @see dac_enable_auto_refresh()
|
||
|
|
*/
|
||
|
|
void dac_set_refresh_cycle(uint32_t dac, uint32_t refrsel)
|
||
|
|
{
|
||
|
|
DAC_CTRL(dac) = (DAC_CTRL(dac) & ~DAC_CTRL_REFRSEL_MASK) | refrsel;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Set DAC clock prescaler
|
||
|
|
* @param[in] dac DAC (use DACx)
|
||
|
|
* @param[in] presc Prescaler (use DAC_CTRL_PRESC_*)
|
||
|
|
*/
|
||
|
|
void dac_set_clock_prescaler(uint32_t dac, uint32_t presc)
|
||
|
|
{
|
||
|
|
DAC_CTRL(dac) = (DAC_CTRL(dac) & ~DAC_CTRL_PRESC_MASK) | presc;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Set DAC reference
|
||
|
|
* @param[in] dac DAC (use DACx)
|
||
|
|
* @param[in] refsel Reference (DAC_CTRL_REFSEL_*)
|
||
|
|
*/
|
||
|
|
void dac_set_reference(uint32_t dac, uint32_t refsel)
|
||
|
|
{
|
||
|
|
DAC_CTRL(dac) = (DAC_CTRL(dac) & ~DAC_CTRL_REFSEL_MASK) | refsel;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Set DAC output mode
|
||
|
|
* @param[in] dac DAC (use DACx)
|
||
|
|
* @param[in] outmode Output mode (DAC_CTRL_OUTMODE_*)
|
||
|
|
*/
|
||
|
|
void dac_set_out_mode(uint32_t dac, uint32_t outmode)
|
||
|
|
{
|
||
|
|
DAC_CTRL(dac) = (DAC_CTRL(dac) & ~DAC_CTRL_OUTMODE_MASK) | outmode;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Set conversion mode
|
||
|
|
* @param[in] dac DAC (use DACx)
|
||
|
|
* @param[in] convmode Conversion mode (use DAC_CTRL_CONVMODE_*)
|
||
|
|
*/
|
||
|
|
void dac_set_conversion_mode(uint32_t dac, uint32_t convmode)
|
||
|
|
{
|
||
|
|
DAC_CTRL(dac) = (DAC_CTRL(dac) & ~DAC_CTRL_CONVMODE_MASK) | convmode;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Enable Sine wave on output
|
||
|
|
* @param[in] dac DAC (use DACx)
|
||
|
|
*/
|
||
|
|
void dac_enable_sine(uint32_t dac)
|
||
|
|
{
|
||
|
|
DAC_CTRL(dac) |= DAC_CTRL_SINMODE;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Disable Sine wave on output
|
||
|
|
* @param[in] dac DAC (use DACx)
|
||
|
|
*/
|
||
|
|
void dac_disable_sine(uint32_t dac)
|
||
|
|
{
|
||
|
|
DAC_CTRL(dac) &= ~DAC_CTRL_SINMODE;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Set PRS trigger source on DAC channel
|
||
|
|
* @param[in] dac DAC (use DACx)
|
||
|
|
* @param[in] dac_chan DAC Channel (use DAC_CHx)
|
||
|
|
* @param[in] prs_chan PRS Channel (use PRS_CHx)
|
||
|
|
*/
|
||
|
|
void dac_set_prs_trigger(uint32_t dac, enum dac_ch dac_chan,
|
||
|
|
enum prs_ch prs_chan)
|
||
|
|
{
|
||
|
|
uint32_t ch_ctrl = DAC_CHx_CTRL(dac, dac_chan);
|
||
|
|
ch_ctrl &= DAC_CH_CTRL_PRSSEL_MASK;
|
||
|
|
ch_ctrl |= DAC_CH_CTRL_PRSSEL(prs_chan);
|
||
|
|
DAC_CHx_CTRL(dac, dac_chan) = ch_ctrl;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Enable PRS triggerring
|
||
|
|
* @param[in] dac DAC (use DACx)
|
||
|
|
* @param[in] ch DAC Channel (use DAC_CHx)
|
||
|
|
*/
|
||
|
|
void dac_enable_prs_trigger(uint32_t dac, enum dac_ch ch)
|
||
|
|
{
|
||
|
|
DAC_CHx_CTRL(dac, ch) |= DAC_CH_CTRL_PRSEN;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Disable PRS triggerring
|
||
|
|
* @param[in] dac DAC (use DACx)
|
||
|
|
* @param[in] ch DAC Channel (use DAC_CHx)
|
||
|
|
*/
|
||
|
|
void dac_disable_prs_trigger(uint32_t dac, enum dac_ch ch)
|
||
|
|
{
|
||
|
|
DAC_CHx_CTRL(dac, ch) &= ~DAC_CH_CTRL_PRSEN;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Enable auto refresh
|
||
|
|
* @param[in] dac DAC (use DACx)
|
||
|
|
* @param[in] ch DAC Channel (use DAC_CHx)
|
||
|
|
*/
|
||
|
|
void dac_enable_auto_refresh(uint32_t dac, enum dac_ch ch)
|
||
|
|
{
|
||
|
|
DAC_CHx_CTRL(dac, ch) |= DAC_CH_CTRL_REFREN;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Disable auto refresh
|
||
|
|
* @param[in] dac DAC (use DACx)
|
||
|
|
* @param[in] ch DAC Channel (use DAC_CHx)
|
||
|
|
*/
|
||
|
|
void dac_disable_auto_refresh(uint32_t dac, enum dac_ch ch)
|
||
|
|
{
|
||
|
|
DAC_CHx_CTRL(dac, ch) &= ~DAC_CH_CTRL_REFREN;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Enable channel
|
||
|
|
* @param[in] dac DAC (use DACx)
|
||
|
|
* @param[in] ch DAC Channel (use DAC_CHx)
|
||
|
|
*/
|
||
|
|
void dac_enable_channel(uint32_t dac, enum dac_ch ch)
|
||
|
|
{
|
||
|
|
DAC_CHx_CTRL(dac, ch) |= DAC_CH_CTRL_EN;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Disable channel
|
||
|
|
* @param[in] dac DAC (use DACx)
|
||
|
|
* @param[in] ch DAC Channel (use DAC_CHx)
|
||
|
|
*/
|
||
|
|
void dac_disable_channel(uint32_t dac, enum dac_ch ch)
|
||
|
|
{
|
||
|
|
DAC_CHx_CTRL(dac, ch) &= ~DAC_CH_CTRL_REFREN;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**@}*/
|