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https://github.com/EFeru/hoverboard-sideboard-hack-GD.git
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181 lines
3.7 KiB
C
181 lines
3.7 KiB
C
/*!
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\file gd32f1x0_ivref.c
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\brief IVREF driver
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*/
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/*
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Copyright (C) 2017 GigaDevice
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2014-12-26, V1.0.0, platform GD32F1x0(x=3,5)
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2016-01-15, V2.0.0, platform GD32F1x0(x=3,5,7,9)
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2016-04-30, V3.0.0, firmware update for GD32F1x0(x=3,5,7,9)
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2017-06-19, V3.1.0, firmware update for GD32F1x0(x=3,5,7,9)
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*/
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#ifdef GD32F170_190
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#include "gd32f1x0_ivref.h"
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/*!
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\brief deinit IVREF
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\param[in] none
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\param[out] none
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\retval none
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*/
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void ivref_deinit(void)
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{
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rcu_periph_reset_enable(RCU_OPAIVREFRST);
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rcu_periph_reset_disable(RCU_OPAIVREFRST);
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}
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/*!
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\brief enable VREF
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\param[in] none
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\param[out] none
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\retval none
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*/
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void vref_enable(void)
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{
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IVREF_CTL |= IVREF_CTL_VREN;
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}
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/*!
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\brief disable VREF
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\param[in] none
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\param[out] none
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\retval none
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*/
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void vref_disable(void)
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{
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IVREF_CTL &= ~IVREF_CTL_VREN;
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}
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/*!
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\brief set VREF mode
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\param[in] vrefmode
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\arg VREF_CONNECT_EXTERNAL_CAP: vref connect external capacitor
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\arg VREF_DISCONNECT_EXTERNAL_CAP: vref disconnect external capacitor
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\param[out] none
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\retval none
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*/
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void vref_mode_set(uint32_t vrefmode)
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{
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uint32_t ctl = 0U;
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ctl = IVREF_CTL;
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/* clear voltage reference enable bits */
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ctl &= ~IVREF_CTL_DECAP;
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ctl |= vrefmode;
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IVREF_CTL = ctl;
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}
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/*!
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\brief set VREF voltage precision trim.
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\param[in] precisiontrim
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\arg VREF_VOLT_PRECISION_TRIM_X(x=0..31): (-6.4+ 0.4*x)%
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\param[out] none
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\retval none
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*/
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void vref_precision_trim_value_set(uint32_t precisiontrim)
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{
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uint32_t ctl = 0U;
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ctl = IVREF_CTL;
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ctl &= ~IVREF_CTL_VPT;
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ctl |= precisiontrim;
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IVREF_CTL = ctl;
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}
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/*!
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\brief enable IREF
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\param[in] none
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\param[out] none
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\retval none
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*/
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void iref_enable(void)
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{
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IVREF_CTL |= IVREF_CTL_CREN;
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}
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/*!
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\brief disable IREF
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\param[in] none
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\param[out] none
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\retval none
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*/
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void iref_disable(void)
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{
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IVREF_CTL &= ~IVREF_CTL_CREN;
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}
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/*!
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\brief set IREF mode
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\param[in] irefmode
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\arg IREF_MODE_LOW_POWER: 1uA step
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\arg IREF_MODE_HIGH_CURRENT: 8uA step
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\param[out] none
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\retval none
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*/
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void iref_mode_set(uint32_t irefmode)
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{
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uint32_t ctl = 0U;
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ctl = IVREF_CTL;
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ctl &= ~IVREF_CTL_SSEL;
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ctl |= irefmode;
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IVREF_CTL = ctl;
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}
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/*!
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\brief set IREF precision_trim_value
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\param[in] precisiontrim
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\arg IREF_CUR_PRECISION_TRIM_X(x=0..31): (-15+ x)%
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\param[out] none
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\retval none
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*/
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void iref_precision_trim_value_set(uint32_t precisiontrim)
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{
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uint32_t ctl = 0U;
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ctl = IVREF_CTL;
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ctl &= ~IVREF_CTL_CPT;
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ctl |= precisiontrim;
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IVREF_CTL = ctl;
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}
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/*!
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\brief set IREF sink mode
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\param[in] irefsinkmode
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\arg IREF_SOURCE_CURRENT : source current.
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\arg IREF_SINK_CURRENT: sink current
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\param[out] none
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\retval none
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*/
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void iref_sink_set(uint32_t irefsinkmode)
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{
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uint32_t ctl = 0U;
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ctl = IVREF_CTL;
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/* clear sink current mode bits */
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ctl &= ~IVREF_CTL_SCMOD;
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/* set sink current mode bits */
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ctl |= irefsinkmode;
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IVREF_CTL = ctl;
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}
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/*!
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\brief set IREF step data
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\param[in] irefstepdata
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\arg IREF_CUR_STEP_DATA_X:(x=0..63): step*x
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\param[out] none
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\retval none
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*/
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void iref_step_data_config(uint32_t irefstepdata)
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{
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uint32_t ctl = 0U;
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/* get ctl value */
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ctl = IVREF_CTL;
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/* clear current step data bits */
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ctl &= ~IVREF_CTL_CSDT;
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/* set current step data bits */
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ctl |= irefstepdata;
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IVREF_CTL = ctl;
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}
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#endif /* GD32F170_190 */
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