102 lines
1.9 KiB
C
102 lines
1.9 KiB
C
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/*!
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\file gd32f4xx_iref.c
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\brief IREF driver
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*/
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/*
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Copyright (C) 2016 GigaDevice
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2016-08-15, V1.0.0, firmware for GD32F4xx
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*/
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#include "gd32f4xx_iref.h"
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/*!
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\brief deinit 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_deinit(void)
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{
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rcu_periph_reset_enable(RCU_IREFRST);
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rcu_periph_reset_disable(RCU_IREFRST);
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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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IREF_CTL |= IREF_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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IREF_CTL &= ~IREF_CTL_CREN;
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}
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/*!
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\brief set IREF mode
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\param[in] step
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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 step)
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{
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IREF_CTL &= ~IREF_CTL_SSEL;
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IREF_CTL |= step;
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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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IREF_CTL &= ~IREF_CTL_CPT;
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IREF_CTL |= precisiontrim;
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}
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/*!
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\brief set IREF sink mode
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\param[in] sinkmode
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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 sinkmode)
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{
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IREF_CTL &= ~IREF_CTL_SCMOD;
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IREF_CTL |= sinkmode;
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}
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/*!
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\brief set IREF step data
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\param[in] stepdata
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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 stepdata)
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{
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IREF_CTL &= ~IREF_CTL_CSDT;
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IREF_CTL |= stepdata;
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}
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