916 lines
34 KiB
C
916 lines
34 KiB
C
/*!
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\file gd32f30x_adc.c
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\brief ADC driver
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*/
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/*
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Copyright (C) 2017 GigaDevice
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2017-02-10, V1.0.2, firmware for GD32F30x
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*/
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#include "gd32f30x_adc.h"
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/*!
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\brief reset ADC
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\param[in] adc_periph: ADCx,x=0,1,2
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only one among these parameters can be selected
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\param[out] none
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\retval none
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*/
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void adc_deinit(uint32_t adc_periph)
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{
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switch(adc_periph){
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case ADC0:
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rcu_periph_reset_enable(RCU_ADC0RST);
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rcu_periph_reset_disable(RCU_ADC0RST);
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break;
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case ADC1:
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rcu_periph_reset_enable(RCU_ADC1RST);
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rcu_periph_reset_disable(RCU_ADC1RST);
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break;
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#if (defined(GD32F30X_HD) || defined(GD32F30X_XD))
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case ADC2:
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rcu_periph_reset_enable(RCU_ADC2RST);
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rcu_periph_reset_disable(RCU_ADC2RST);
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break;
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#endif
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default:
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break;
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}
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}
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/*!
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\brief enable ADC interface
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\param[in] adc_periph: ADCx,x=0,1,2
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only one among these parameters can be selected
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\param[out] none
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\retval none
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*/
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void adc_enable(uint32_t adc_periph)
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{
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if(RESET == (ADC_CTL1(adc_periph) & ADC_CTL1_ADCON)){
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ADC_CTL1(adc_periph) |= (uint32_t)ADC_CTL1_ADCON;
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}
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}
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/*!
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\brief disable ADC interface
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\param[in] adc_periph: ADCx,x=0,1,2
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only one among these parameters can be selected
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\param[out] none
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\retval none
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*/
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void adc_disable(uint32_t adc_periph)
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{
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ADC_CTL1(adc_periph) &= ~((uint32_t)ADC_CTL1_ADCON);
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}
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/*!
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\brief ADC calibration and reset calibration
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\param[in] adc_periph: ADCx,x=0,1,2
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only one among these parameters can be selected
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\param[out] none
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\retval none
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*/
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void adc_calibration_enable(uint32_t adc_periph)
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{
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/* reset the selected ADC1 calibration registers */
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ADC_CTL1(adc_periph) |= (uint32_t) ADC_CTL1_RSTCLB;
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/* check the RSTCLB bit state */
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while((ADC_CTL1(adc_periph) & ADC_CTL1_RSTCLB)){
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}
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/* enable ADC calibration process */
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ADC_CTL1(adc_periph) |= ADC_CTL1_CLB;
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/* check the CLB bit state */
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while((ADC_CTL1(adc_periph) & ADC_CTL1_CLB)){
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}
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}
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/*!
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\brief enable DMA request
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\param[in] adc_periph: ADCx,x=0,1,2
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only one among these parameters can be selected
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\param[out] none
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\retval none
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*/
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void adc_dma_mode_enable(uint32_t adc_periph)
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{
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ADC_CTL1(adc_periph) |= (uint32_t)(ADC_CTL1_DMA);
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}
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/*!
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\brief disable DMA request
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\param[in] adc_periph: ADCx,x=0,1,2
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only one among these parameters can be selected
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\param[out] none
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\retval none
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*/
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void adc_dma_mode_disable(uint32_t adc_periph)
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{
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ADC_CTL1(adc_periph) &= ~((uint32_t)ADC_CTL1_DMA);
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}
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/*!
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\brief enable the temperature sensor and Vrefint channel
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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 adc_tempsensor_vrefint_enable(void)
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{
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/* enable the temperature sensor and Vrefint channel */
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ADC_CTL1(ADC0) |= ADC_CTL1_TSVREN;
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}
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/*!
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\brief disable the temperature sensor and Vrefint channel
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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 adc_tempsensor_vrefint_disable(void)
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{
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/* disable the temperature sensor and Vrefint channel */
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ADC_CTL1(ADC0) &= ~ADC_CTL1_TSVREN;
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}
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/*!
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\brief configure ADC resolution
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\param[in] adc_periph: ADCx,x=0,1,2
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only one among these parameters can be selected
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\param[in] resolution: ADC resolution
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only one among these parameters can be selected
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\arg ADC_RESOLUTION_12B: 12-bit ADC resolution
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\arg ADC_RESOLUTION_10B: 10-bit ADC resolution
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\arg ADC_RESOLUTION_8B: 8-bit ADC resolution
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\arg ADC_RESOLUTION_6B: 6-bit ADC resolution
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\param[out] none
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\retval none
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*/
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void adc_resolution_config(uint32_t adc_periph , uint32_t resolution)
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{
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ADC_OVSAMPCTL(adc_periph) &= ~((uint32_t)ADC_OVSAMPCTL_DRES);
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ADC_OVSAMPCTL(adc_periph) |= (uint32_t)resolution;
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}
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/*!
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\brief configure ADC discontinuous mode
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\param[in] adc_periph: ADCx,x=0,1,2
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only one among these parameters can be selected
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\param[in] adc_channel_group: select the channel group
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only one among these parameters can be selected
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\arg ADC_REGULAR_CHANNEL: regular channel group
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\arg ADC_INSERTED_CHANNEL: inserted channel group
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\arg ADC_CHANNEL_DISCON_DISABLE: disable discontinuous mode of regular & inserted channel
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\param[in] length: number of conversions in discontinuous mode,the number can be 1..8
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for regular channel ,the number has no effect for inserted channel
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\param[out] none
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\retval none
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*/
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void adc_discontinuous_mode_config(uint32_t adc_periph, uint8_t adc_channel_group, uint8_t length)
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{
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ADC_CTL0(adc_periph) &= ~((uint32_t)( ADC_CTL0_DISRC | ADC_CTL0_DISIC ));
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switch(adc_channel_group){
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case ADC_REGULAR_CHANNEL:
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/* config the number of conversions in discontinuous mode */
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ADC_CTL0(adc_periph) &= ~((uint32_t)ADC_CTL0_DISNUM);
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ADC_CTL0(adc_periph) |= CTL0_DISNUM(((uint32_t)length - 1U));
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ADC_CTL0(adc_periph) |= (uint32_t)ADC_CTL0_DISRC;
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break;
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case ADC_INSERTED_CHANNEL:
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ADC_CTL0(adc_periph) |= (uint32_t)ADC_CTL0_DISIC;
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break;
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case ADC_CHANNEL_DISCON_DISABLE:
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default:
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break;
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}
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}
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/*!
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\brief configure the ADC sync mode
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\param[in] mode: ADC mode
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only one among these parameters can be selected
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\arg ADC_MODE_FREE: all the ADCs work independently
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\arg ADC_DAUL_REGULAL_PARALLEL_INSERTED_PARALLEL: ADC0 and ADC1 work in combined regular parallel + inserted parallel mode
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\arg ADC_DAUL_REGULAL_PARALLEL_INSERTED_ROTATION: ADC0 and ADC1 work in combined regular parallel + trigger rotation mode
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\arg ADC_DAUL_INSERTED_PARALLEL_REGULAL_FOLLOWUP_FAST: ADC0 and ADC1 work in combined inserted parallel + follow-up fast mode
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\arg ADC_DAUL_INSERTED_PARALLEL_REGULAL_FOLLOWUP_SLOW: ADC0 and ADC1 work in combined inserted parallel + follow-up slow mode
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\arg ADC_DAUL_INSERTED_PARALLEL: ADC0 and ADC1 work in inserted parallel mode only
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\arg ADC_DAUL_REGULAL_PARALLEL: ADC0 and ADC1 work in regular parallel mode only
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\arg ADC_DAUL_REGULAL_FOLLOWUP_FAST: ADC0 and ADC1 work in follow-up fast mode only
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\arg ADC_DAUL_REGULAL_FOLLOWUP_SLOW: ADC0 and ADC1 work in follow-up slow mode only
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\arg ADC_DAUL_INSERTED_TRRIGGER_ROTATION: ADC0 and ADC1 work in trigger rotation mode only
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\param[out] none
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\retval none
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*/
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void adc_mode_config(uint32_t mode)
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{
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ADC_CTL0(ADC0) &= ~(ADC_CTL0_SYNCM);
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ADC_CTL0(ADC0) |= mode;
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}
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/*!
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\brief enable or disable ADC special function
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\param[in] adc_periph: ADCx,x=0,1,2
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only one among these parameters can be selected
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\param[in] function: the function to config
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one or more parameters can be selected below
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\arg ADC_SCAN_MODE: scan mode select
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\arg ADC_INSERTED_CHANNEL_AUTO: inserted channel group convert automatically
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\arg ADC_CONTINUOUS_MODE: continuous mode select
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\param[in] newvalue: ENABLE or DISABLE
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\param[out] none
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\retval none
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*/
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void adc_special_function_config(uint32_t adc_periph , uint32_t function , ControlStatus newvalue)
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{
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if(newvalue){
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if(0U != (function & ADC_SCAN_MODE)){
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ADC_CTL0(adc_periph) |= ADC_SCAN_MODE;
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}
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if(0U != (function & ADC_INSERTED_CHANNEL_AUTO)){
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ADC_CTL0(adc_periph) |= ADC_INSERTED_CHANNEL_AUTO;
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}
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if(0U != (function & ADC_CONTINUOUS_MODE)){
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ADC_CTL1(adc_periph) |= ADC_CONTINUOUS_MODE;
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}
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}else{
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if(0U != (function & ADC_SCAN_MODE)){
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ADC_CTL0(adc_periph) &= ~ADC_SCAN_MODE;
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}
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if(0U != (function & ADC_INSERTED_CHANNEL_AUTO)){
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ADC_CTL0(adc_periph) &= ~ADC_INSERTED_CHANNEL_AUTO;
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}
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if(0U != (function & ADC_CONTINUOUS_MODE)){
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ADC_CTL1(adc_periph) &= ~ADC_CONTINUOUS_MODE;
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}
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}
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}
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/*!
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\brief configure ADC data alignment
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\param[in] adc_periph: ADCx,x=0,1,2
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only one among these parameters can be selected
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\param[in] data_alignment: data alignment select
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only one parameter can be selected
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\arg ADC_DATAALIGN_RIGHT: LSB alignment
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\arg ADC_DATAALIGN_LEFT: MSB alignment
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\param[out] none
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\retval none
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*/
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void adc_data_alignment_config(uint32_t adc_periph , uint32_t data_alignment)
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{
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if(ADC_DATAALIGN_RIGHT != data_alignment){
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ADC_CTL1(adc_periph) |= ADC_CTL1_DAL;
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}else{
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ADC_CTL1(adc_periph) &= ~((uint32_t)ADC_CTL1_DAL);
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}
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}
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/*!
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\brief configure the length of regular channel group or inserted channel group
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\param[in] adc_periph: ADCx,x=0,1,2
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only one among these parameters can be selected
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\param[in] adc_channel_group: select the channel group
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only one parameter can be selected
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\arg ADC_REGULAR_CHANNEL: regular channel group
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\arg ADC_INSERTED_CHANNEL: inserted channel group
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\param[in] length: the length of the channel
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regular channel 1-16
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inserted channel 1-4
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\param[out] none
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\retval none
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*/
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void adc_channel_length_config(uint32_t adc_periph, uint8_t adc_channel_group, uint32_t length)
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{
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switch(adc_channel_group){
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case ADC_REGULAR_CHANNEL:
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ADC_RSQ0(adc_periph) &= ~((uint32_t)ADC_RSQ0_RL);
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ADC_RSQ0(adc_periph) |= RSQ0_RL((uint32_t)(length-1U));
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break;
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case ADC_INSERTED_CHANNEL:
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ADC_ISQ(adc_periph) &= ~((uint32_t)ADC_ISQ_IL);
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ADC_ISQ(adc_periph) |= ISQ_IL((uint32_t)(length-1U));
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break;
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default:
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break;
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}
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}
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/*!
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\brief configure ADC regular channel
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\param[in] adc_periph: ADCx,x=0,1,2
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only one among these parameters can be selected
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\param[in] rank: the regular group sequence rank,this parameter must be between 0 to 15
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\param[in] adc_channel: the selected ADC channel
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only one among these parameters can be selected
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\arg ADC_CHANNEL_x(x=0..17)(x=16 and x=17 are only for ADC0): ADC Channelx
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\param[in] sample_time: the sample time value
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only one parameter can be selected
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\arg ADC_SAMPLETIME_1POINT5: 1.5 cycles
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\arg ADC_SAMPLETIME_7POINT5: 7.5 cycles
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\arg ADC_SAMPLETIME_13POINT5: 13.5 cycles
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\arg ADC_SAMPLETIME_28POINT5: 28.5 cycles
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\arg ADC_SAMPLETIME_41POINT5: 41.5 cycles
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\arg ADC_SAMPLETIME_55POINT5: 55.5 cycles
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\arg ADC_SAMPLETIME_71POINT5: 71.5 cycles
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\arg ADC_SAMPLETIME_239POINT5: 239.5 cycles
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\param[out] none
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\retval none
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*/
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void adc_regular_channel_config(uint32_t adc_periph , uint8_t rank , uint8_t adc_channel , uint32_t sample_time)
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{
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uint32_t rsq,sampt;
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/* ADC regular sequence config */
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if(rank < 6U){
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rsq = ADC_RSQ2(adc_periph);
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rsq &= ~((uint32_t)(ADC_RSQX_RSQN << (5U*rank)));
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rsq |= ((uint32_t)adc_channel << (5U*rank));
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ADC_RSQ2(adc_periph) = rsq;
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}else if(rank < 12U){
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rsq = ADC_RSQ1(adc_periph);
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rsq &= ~((uint32_t)(ADC_RSQX_RSQN << (5U*(rank-6U))));
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rsq |= ((uint32_t)adc_channel << (5U*(rank-6U)));
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ADC_RSQ1(adc_periph) = rsq;
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}else if(rank < 16U){
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rsq = ADC_RSQ0(adc_periph);
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rsq &= ~((uint32_t)(ADC_RSQX_RSQN << (5U*(rank-12U))));
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rsq |= ((uint32_t)adc_channel << (5U*(rank-12U)));
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ADC_RSQ0(adc_periph) = rsq;
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}else{
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}
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/* ADC sampling time config */
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if(adc_channel < 10U){
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sampt = ADC_SAMPT1(adc_periph);
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sampt &= ~((uint32_t)(ADC_SAMPTX_SPTN << (3U*adc_channel)));
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sampt |= (uint32_t)(sample_time << (3U*adc_channel));
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ADC_SAMPT1(adc_periph) = sampt;
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}else if(adc_channel < 18U){
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sampt = ADC_SAMPT0(adc_periph);
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sampt &= ~((uint32_t)(ADC_SAMPTX_SPTN << (3U*(adc_channel-10U))));
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sampt |= (uint32_t)(sample_time << (3U*(adc_channel-10U)));
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ADC_SAMPT0(adc_periph) = sampt;
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}else{
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}
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}
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/*!
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\brief configure ADC inserted channel
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\param[in] adc_periph: ADCx,x=0,1,2
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only one among these parameters can be selected
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\param[in] rank: the inserted group sequencer rank,this parameter must be between 0 to 3
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\param[in] adc_channel: the selected ADC channel
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only one among these parameters can be selected
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\arg ADC_CHANNEL_x(x=0..17)(x=16 and x=17 are only for ADC0): ADC Channelx
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\param[in] sample_time: The sample time value
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only one parameter can be selected
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\arg ADC_SAMPLETIME_1POINT5: 1.5 cycles
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\arg ADC_SAMPLETIME_7POINT5: 7.5 cycles
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\arg ADC_SAMPLETIME_13POINT5: 13.5 cycles
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\arg ADC_SAMPLETIME_28POINT5: 28.5 cycles
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\arg ADC_SAMPLETIME_41POINT5: 41.5 cycles
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\arg ADC_SAMPLETIME_55POINT5: 55.5 cycles
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\arg ADC_SAMPLETIME_71POINT5: 71.5 cycles
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\arg ADC_SAMPLETIME_239POINT5: 239.5 cycles
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\param[out] none
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\retval none
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*/
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void adc_inserted_channel_config(uint32_t adc_periph , uint8_t rank , uint8_t adc_channel , uint32_t sample_time)
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{
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uint8_t inserted_length;
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uint32_t isq,sampt;
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inserted_length = (uint8_t)GET_BITS(ADC_ISQ(adc_periph) , 20U , 21U);
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isq = ADC_ISQ(adc_periph);
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isq &= ~((uint32_t)(ADC_ISQ_ISQN << (15U-(inserted_length-rank)*5U)));
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isq |= ((uint32_t)adc_channel << (15U-(inserted_length-rank)*5U));
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ADC_ISQ(adc_periph) = isq;
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/* ADC sampling time config */
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if(adc_channel < 10U){
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sampt = ADC_SAMPT1(adc_periph);
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sampt &= ~((uint32_t)(ADC_SAMPTX_SPTN << (3U*adc_channel)));
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sampt |= (uint32_t) sample_time << (3U*adc_channel);
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ADC_SAMPT1(adc_periph) = sampt;
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}else if(adc_channel < 18U){
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sampt = ADC_SAMPT0(adc_periph);
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sampt &= ~((uint32_t)(ADC_SAMPTX_SPTN << (3U*(adc_channel-10U))));
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sampt |= ((uint32_t)sample_time << (3U*(adc_channel-10U)));
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ADC_SAMPT0(adc_periph) = sampt;
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}else{
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}
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}
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/*!
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\brief configure ADC inserted channel offset
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\param[in] adc_periph: ADCx,x=0,1,2
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only one among these parameters can be selected
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\param[in] inserted_channel : insert channel select
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only one parameter can be selected
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\arg ADC_INSERTED_CHANNEL_0: inserted channel0
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\arg ADC_INSERTED_CHANNEL_1: inserted channel1
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\arg ADC_INSERTED_CHANNEL_2: inserted channel2
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\arg ADC_INSERTED_CHANNEL_3: inserted channel3
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\param[in] offset : the offset data
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\param[out] none
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\retval none
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*/
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void adc_inserted_channel_offset_config(uint32_t adc_periph , uint8_t inserted_channel , uint16_t offset)
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{
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uint8_t inserted_length;
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uint32_t num = 0U;
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inserted_length = (uint8_t)GET_BITS(ADC_ISQ(adc_periph) , 20U , 21U);
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num = 3U - (inserted_length - inserted_channel);
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if(num <= 3U){
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/* calculate the offset of the register */
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num = num * 4U;
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/* config the offset of the selected channels */
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REG32((adc_periph) + 0x14U + num) = IOFFX_IOFF((uint32_t)offset);
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}
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}
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/*!
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\brief enable ADC external trigger
|
|
\param[in] adc_periph: ADCx,x=0,1,2
|
|
only one among these parameters can be selected
|
|
\param[in] adc_channel_group: select the channel group
|
|
one or more parameters can be selected
|
|
\arg ADC_REGULAR_CHANNEL: regular channel group
|
|
\arg ADC_INSERTED_CHANNEL: inserted channel group
|
|
\param[in] newvalue: ENABLE or DISABLE
|
|
\param[out] none
|
|
\retval none
|
|
*/
|
|
void adc_external_trigger_config(uint32_t adc_periph, uint8_t adc_channel_group, ControlStatus newvalue)
|
|
{
|
|
if(newvalue){
|
|
if(0U != (adc_channel_group & ADC_REGULAR_CHANNEL)){
|
|
ADC_CTL1(adc_periph) |= ADC_CTL1_ETERC;
|
|
}
|
|
if(0U != (adc_channel_group & ADC_INSERTED_CHANNEL)){
|
|
ADC_CTL1(adc_periph) |= ADC_CTL1_ETEIC;
|
|
}
|
|
}else{
|
|
if(0U != (adc_channel_group & ADC_REGULAR_CHANNEL)){
|
|
ADC_CTL1(adc_periph) &= ~ADC_CTL1_ETERC;
|
|
}
|
|
if(0U != (adc_channel_group & ADC_INSERTED_CHANNEL)){
|
|
ADC_CTL1(adc_periph) &= ~ADC_CTL1_ETEIC;
|
|
}
|
|
}
|
|
}
|
|
|
|
/*!
|
|
\brief configure ADC external trigger source
|
|
\param[in] adc_periph: ADCx,x=0,1,2
|
|
only one among these parameters can be selected
|
|
\param[in] adc_channel_group: select the channel group
|
|
only one parameter can be selected
|
|
\arg ADC_REGULAR_CHANNEL: regular channel group
|
|
\arg ADC_INSERTED_CHANNEL: inserted channel group
|
|
\param[in] external_trigger_source: regular or inserted group trigger source
|
|
only one parameter can be selected
|
|
for regular channel:
|
|
\arg ADC0_1_EXTTRIG_REGULAR_T0_CH0: timer 0 CC0 event select
|
|
\arg ADC0_1_EXTTRIG_REGULAR_T0_CH1: timer 0 CC1 event select
|
|
\arg ADC0_1_EXTTRIG_REGULAR_T0_CH2: timer 0 CC2 event select
|
|
\arg ADC0_1_EXTTRIG_REGULAR_T1_CH1: timer 1 CC1 event select
|
|
\arg ADC0_1_EXTTRIG_REGULAR_T2_TRGO: timer 2 TRGO event select
|
|
\arg ADC0_1_EXTTRIG_REGULAR_T3_CH3: timer 3 CC3 event select
|
|
\arg ADC0_1_EXTTRIG_REGULAR_T7_TRGO: timer 7 TRGO event select
|
|
\arg ADC0_1_EXTTRIG_REGULAR_EXTI_11 : external interrupt line 11
|
|
\arg ADC2_EXTTRIG_REGULAR_T2_CH0: timer 2 CC0 event select
|
|
\arg ADC2_EXTTRIG_REGULAR_T1_CH2: timer 1 CC2 event select
|
|
\arg ADC2_EXTTRIG_REGULAR_T0_CH2: timer 0 CC2 event select
|
|
\arg ADC2_EXTTRIG_REGULAR_T7_CH0: timer 7 CC0 event select
|
|
\arg ADC2_EXTTRIG_REGULAR_T7_TRGO: timer 7 TRGO event select
|
|
\arg ADC2_EXTTRIG_REGULAR_T4_CH0: timer 4 CC0 event select
|
|
\arg ADC2_EXTTRIG_REGULAR_T4_CH2: timer 4 CC2 event select
|
|
\arg ADC0_1_2_EXTTRIG_REGULAR_NONE: software trigger
|
|
for inserted channel:
|
|
\arg ADC0_1_EXTTRIG_INSERTED_T0_TRGO: timer 0 TRGO event select
|
|
\arg ADC0_1_EXTTRIG_INSERTED_T0_CH3: timer 0 CC3 event select
|
|
\arg ADC0_1_EXTTRIG_INSERTED_T1_TRGO: timer 1 TRGO event select
|
|
\arg ADC0_1_EXTTRIG_INSERTED_T1_CH0: timer 1 CC0 event select
|
|
\arg ADC0_1_EXTTRIG_INSERTED_T2_CH3: timer 2 CC3 event select
|
|
\arg ADC0_1_EXTTRIG_INSERTED_T3_TRGO: timer 3 TRGO event select
|
|
\arg ADC0_1_EXTTRIG_INSERTED_EXTI_15: external interrupt line 15
|
|
\arg ADC0_1_EXTTRIG_INSERTED_T7_CH3: timer 7 CC3 event select
|
|
\arg ADC2_EXTTRIG_INSERTED_T0_TRGO: timer 0 TRGO event select
|
|
\arg ADC2_EXTTRIG_INSERTED_T0_CH3: timer 0 CC3 event select
|
|
\arg ADC2_EXTTRIG_INSERTED_T3_CH2: timer 3 CC2 event select
|
|
\arg ADC2_EXTTRIG_INSERTED_T7_CH1: timer 7 CC1 event select
|
|
\arg ADC2_EXTTRIG_INSERTED_T7_CH3: timer 7 CC3 event select
|
|
\arg ADC2_EXTTRIG_INSERTED_T4_TRGO: timer 4 TRGO event select
|
|
\arg ADC2_EXTTRIG_INSERTED_T4_CH3: timer 4 CC3 event select
|
|
\arg ADC0_1_2_EXTTRIG_INSERTED_NONE: software trigger
|
|
\param[out] none
|
|
\retval none
|
|
*/
|
|
void adc_external_trigger_source_config(uint32_t adc_periph, uint8_t adc_channel_group, uint32_t external_trigger_source)
|
|
{
|
|
switch(adc_channel_group){
|
|
case ADC_REGULAR_CHANNEL:
|
|
ADC_CTL1(adc_periph) &= ~((uint32_t)ADC_CTL1_ETSRC);
|
|
ADC_CTL1(adc_periph) |= (uint32_t)external_trigger_source;
|
|
break;
|
|
case ADC_INSERTED_CHANNEL:
|
|
ADC_CTL1(adc_periph) &= ~((uint32_t)ADC_CTL1_ETSIC);
|
|
ADC_CTL1(adc_periph) |= (uint32_t)external_trigger_source;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
/*!
|
|
\brief enable ADC software trigger
|
|
\param[in] adc_periph: ADCx,x=0,1,2
|
|
only one among these parameters can be selected
|
|
\param[in] adc_channel_group: select the channel group
|
|
one or more parameters can be selected
|
|
\arg ADC_REGULAR_CHANNEL: regular channel group
|
|
\arg ADC_INSERTED_CHANNEL: inserted channel group
|
|
\param[out] none
|
|
\retval none
|
|
*/
|
|
void adc_software_trigger_enable(uint32_t adc_periph , uint8_t adc_channel_group)
|
|
{
|
|
if(0U != (adc_channel_group & ADC_REGULAR_CHANNEL)){
|
|
ADC_CTL1(adc_periph) |= ADC_CTL1_SWRCST;
|
|
}
|
|
if(0U != (adc_channel_group & ADC_INSERTED_CHANNEL)){
|
|
ADC_CTL1(adc_periph) |= ADC_CTL1_SWICST;
|
|
}
|
|
}
|
|
|
|
/*!
|
|
\brief read ADC regular group data register
|
|
\param[in] adc_periph: ADCx,x=0,1,2
|
|
only one among these parameters can be selected
|
|
\param[in] none
|
|
\param[out] none
|
|
\retval the conversion value
|
|
*/
|
|
uint16_t adc_regular_data_read(uint32_t adc_periph)
|
|
{
|
|
return (uint16_t)(ADC_RDATA(adc_periph));
|
|
}
|
|
|
|
/*!
|
|
\brief read ADC inserted group data register
|
|
\param[in] adc_periph: ADCx,x=0,1,2
|
|
only one among these parameters can be selected
|
|
\param[in] inserted_channel : insert channel select
|
|
only one parameter can be selected
|
|
\arg ADC_INSERTED_CHANNEL_0: inserted Channel0
|
|
\arg ADC_INSERTED_CHANNEL_1: inserted channel1
|
|
\arg ADC_INSERTED_CHANNEL_2: inserted Channel2
|
|
\arg ADC_INSERTED_CHANNEL_3: inserted Channel3
|
|
\param[out] none
|
|
\retval the conversion value
|
|
*/
|
|
uint16_t adc_inserted_data_read(uint32_t adc_periph , uint8_t inserted_channel)
|
|
{
|
|
uint32_t idata;
|
|
/* read the data of the selected channel */
|
|
switch(inserted_channel){
|
|
case ADC_INSERTED_CHANNEL_0:
|
|
idata = ADC_IDATA0(adc_periph);
|
|
break;
|
|
case ADC_INSERTED_CHANNEL_1:
|
|
idata = ADC_IDATA1(adc_periph);
|
|
break;
|
|
case ADC_INSERTED_CHANNEL_2:
|
|
idata = ADC_IDATA2(adc_periph);
|
|
break;
|
|
case ADC_INSERTED_CHANNEL_3:
|
|
idata = ADC_IDATA3(adc_periph);
|
|
break;
|
|
default:
|
|
idata = 0U;
|
|
break;
|
|
}
|
|
return (uint16_t)idata;
|
|
}
|
|
|
|
/*!
|
|
\brief read the last ADC0 and ADC1 conversion result data in sync mode
|
|
\param[in] none
|
|
\param[out] none
|
|
\retval the conversion value
|
|
*/
|
|
uint32_t adc_sync_mode_convert_value_read(void)
|
|
{
|
|
/* return conversion value */
|
|
return ADC_RDATA(ADC0);
|
|
}
|
|
|
|
/*!
|
|
\brief get the ADC flag bits
|
|
\param[in] adc_periph: ADCx,x=0,1,2
|
|
only one among these parameters can be selected
|
|
\param[in] adc_flag: the adc flag bits
|
|
only one parameter can be selected
|
|
\arg ADC_FLAG_WDE: analog watchdog event flag
|
|
\arg ADC_FLAG_EOC: end of group conversion flag
|
|
\arg ADC_FLAG_EOIC: end of inserted group conversion flag
|
|
\arg ADC_FLAG_STIC: start flag of inserted channel group
|
|
\arg ADC_FLAG_STRC: start flag of regular channel group
|
|
\param[out] none
|
|
\retval FlagStatus: SET or RESET
|
|
*/
|
|
FlagStatus adc_flag_get(uint32_t adc_periph , uint32_t adc_flag)
|
|
{
|
|
FlagStatus reval = RESET;
|
|
if(ADC_STAT(adc_periph) & adc_flag){
|
|
reval = SET;
|
|
}
|
|
return reval;
|
|
}
|
|
|
|
/*!
|
|
\brief clear the ADC flag bits
|
|
\param[in] adc_periph: ADCx,x=0,1,2
|
|
only one among these parameters can be selected
|
|
\param[in] adc_flag: the adc flag bits
|
|
one or more parameters can be selected
|
|
\arg ADC_FLAG_WDE: analog watchdog event flag
|
|
\arg ADC_FLAG_EOC: end of group conversion flag
|
|
\arg ADC_FLAG_EOIC: end of inserted group conversion flag
|
|
\arg ADC_FLAG_STIC: start flag of inserted channel group
|
|
\arg ADC_FLAG_STRC: start flag of regular channel group
|
|
\param[out] none
|
|
\retval none
|
|
*/
|
|
void adc_flag_clear(uint32_t adc_periph , uint32_t adc_flag)
|
|
{
|
|
ADC_STAT(adc_periph) &= ~((uint32_t)adc_flag);
|
|
}
|
|
|
|
/*!
|
|
\brief get the ADC interrupt bits
|
|
\param[in] adc_periph: ADCx,x=0,1,2
|
|
only one among these parameters can be selected
|
|
\param[in] adc_interrupt: the adc interrupt bits
|
|
only oneparameter can be selected
|
|
\arg ADC_INT_FLAG_WDE: analog watchdog interrupt
|
|
\arg ADC_INT_FLAG_EOC: end of group conversion interrupt
|
|
\arg ADC_INT_FLAG_EOIC: end of inserted group conversion interrupt
|
|
\param[out] none
|
|
\retval FlagStatus: SET or RESET
|
|
*/
|
|
FlagStatus adc_interrupt_flag_get(uint32_t adc_periph , uint32_t adc_interrupt)
|
|
{
|
|
FlagStatus interrupt_flag = RESET;
|
|
uint32_t state;
|
|
/* check the interrupt bits */
|
|
switch(adc_interrupt){
|
|
case ADC_INT_FLAG_WDE:
|
|
state = ADC_STAT(adc_periph) & ADC_STAT_WDE;
|
|
if((ADC_CTL0(adc_periph) & ADC_CTL0_WDEIE) && state){
|
|
interrupt_flag = SET;
|
|
}
|
|
break;
|
|
case ADC_INT_FLAG_EOC:
|
|
state = ADC_STAT(adc_periph) & ADC_STAT_EOC;
|
|
if((ADC_CTL0(adc_periph) & ADC_CTL0_EOCIE) && state){
|
|
interrupt_flag = SET;
|
|
}
|
|
break;
|
|
case ADC_INT_FLAG_EOIC:
|
|
state = ADC_STAT(adc_periph) & ADC_STAT_EOIC;
|
|
if((ADC_CTL0(adc_periph) & ADC_CTL0_EOICIE) && state){
|
|
interrupt_flag = SET;
|
|
}
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
return interrupt_flag;
|
|
}
|
|
|
|
/*!
|
|
\brief clear the ADC flag
|
|
\param[in] adc_periph: ADCx,x=0,1,2
|
|
only one among these parameters can be selected
|
|
\param[in] adc_interrupt: the adc status flag
|
|
one or more parameters can be selected
|
|
\arg ADC_INT_FLAG_WDE: analog watchdog interrupt
|
|
\arg ADC_INT_FLAG_EOC: end of group conversion interrupt
|
|
\arg ADC_INT_FLAG_EOIC: end of inserted group conversion interrupt
|
|
\param[out] none
|
|
\retval none
|
|
*/
|
|
void adc_interrupt_flag_clear(uint32_t adc_periph , uint32_t adc_interrupt)
|
|
{
|
|
ADC_STAT(adc_periph) &= ~((uint32_t)adc_interrupt);
|
|
}
|
|
|
|
/*!
|
|
\brief enable ADC interrupt
|
|
\param[in] adc_periph: ADCx,x=0,1,2
|
|
only one among these parameters can be selected
|
|
\param[in] adc_interrupt: the adc interrupt
|
|
one or more parameters can be selected
|
|
\arg ADC_INT_WDE: analog watchdog interrupt flag
|
|
\arg ADC_INT_EOC: end of group conversion interrupt flag
|
|
\arg ADC_INT_EOIC: end of inserted group conversion interrupt flag
|
|
\param[out] none
|
|
\retval none
|
|
*/
|
|
void adc_interrupt_enable(uint32_t adc_periph , uint32_t adc_interrupt)
|
|
{
|
|
if(0U != (adc_interrupt & ADC_INT_WDE)){
|
|
ADC_CTL0(adc_periph) |= (uint32_t) ADC_CTL0_WDEIE;
|
|
}
|
|
|
|
if(0U != (adc_interrupt & ADC_INT_EOC)){
|
|
ADC_CTL0(adc_periph) |= (uint32_t) ADC_CTL0_EOCIE;
|
|
}
|
|
|
|
if(0U != (adc_interrupt & ADC_INT_EOIC)){
|
|
ADC_CTL0(adc_periph) |= (uint32_t) ADC_CTL0_EOICIE;
|
|
}
|
|
}
|
|
|
|
/*!
|
|
\brief disable ADC interrupt
|
|
\param[in] adc_periph: ADCx,x=0,1,2
|
|
only one among these parameters can be selected
|
|
\param[in] adc_interrupt: the adc interrupt flag
|
|
one or more parameters can be selected
|
|
\arg ADC_INT_WDE: analog watchdog interrupt flag
|
|
\arg ADC_INT_EOC: end of group conversion interrupt flag
|
|
\arg ADC_INT_EOIC: end of inserted group conversion interrupt flag
|
|
\param[out] none
|
|
\retval none
|
|
*/
|
|
void adc_interrupt_disable(uint32_t adc_periph, uint32_t adc_interrupt)
|
|
{
|
|
if(0U != (adc_interrupt & ADC_INT_WDE)){
|
|
ADC_CTL0(adc_periph) &= ~(uint32_t) ADC_CTL0_WDEIE;
|
|
}
|
|
|
|
if(0U != (adc_interrupt & ADC_INT_EOC)){
|
|
ADC_CTL0(adc_periph) &= ~(uint32_t) ADC_CTL0_EOCIE;
|
|
}
|
|
|
|
if(0U != (adc_interrupt & ADC_INT_EOIC)){
|
|
ADC_CTL0(adc_periph) &= ~(uint32_t) ADC_CTL0_EOICIE;
|
|
}
|
|
}
|
|
|
|
/*!
|
|
\brief configure ADC analog watchdog single channel
|
|
\param[in] adc_periph: ADCx,x=0,1,2
|
|
only one among these parameters can be selected
|
|
\param[in] adc_channel: the selected ADC channel
|
|
only one among these parameters can be selected
|
|
\arg ADC_CHANNEL_x: ADC Channelx(x=0..17)(x=16 and x=17 are only for ADC0)
|
|
\param[out] none
|
|
\retval none
|
|
*/
|
|
void adc_watchdog_single_channel_enable(uint32_t adc_periph, uint8_t adc_channel)
|
|
{
|
|
ADC_CTL0(adc_periph) &= (uint32_t)~(ADC_CTL0_RWDEN | ADC_CTL0_IWDEN | ADC_CTL0_WDSC | ADC_CTL0_WDCHSEL);
|
|
|
|
ADC_CTL0(adc_periph) |= (uint32_t)adc_channel;
|
|
ADC_CTL0(adc_periph) |= (uint32_t)(ADC_CTL0_RWDEN | ADC_CTL0_IWDEN | ADC_CTL0_WDSC);
|
|
}
|
|
|
|
/*!
|
|
\brief configure ADC analog watchdog group channel
|
|
\param[in] adc_periph: ADCx,x=0,1,2
|
|
only one among these parameters can be selected
|
|
\param[in] adc_channel_group: the channel group use analog watchdog
|
|
only one parameter can be selected
|
|
\arg ADC_REGULAR_CHANNEL: regular channel group
|
|
\arg ADC_INSERTED_CHANNEL: inserted channel group
|
|
\arg ADC_REGULAR_INSERTED_CHANNEL: both regular and inserted group
|
|
\param[out] none
|
|
\retval none
|
|
*/
|
|
void adc_watchdog_group_channel_enable(uint32_t adc_periph, uint8_t adc_channel_group)
|
|
{
|
|
ADC_CTL0(adc_periph) &= (uint32_t)~(ADC_CTL0_RWDEN | ADC_CTL0_IWDEN | ADC_CTL0_WDSC);
|
|
/* select the group */
|
|
switch(adc_channel_group){
|
|
case ADC_REGULAR_CHANNEL:
|
|
ADC_CTL0(adc_periph) |= (uint32_t) ADC_CTL0_RWDEN;
|
|
break;
|
|
case ADC_INSERTED_CHANNEL:
|
|
ADC_CTL0(adc_periph) |= (uint32_t) ADC_CTL0_IWDEN;
|
|
break;
|
|
case ADC_REGULAR_INSERTED_CHANNEL:
|
|
ADC_CTL0(adc_periph) |= (uint32_t)(ADC_CTL0_RWDEN | ADC_CTL0_IWDEN);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
/*!
|
|
\brief disable ADC analog watchdog
|
|
\param[in] adc_periph: ADCx,x=0,1,2
|
|
only one among these parameters can be selected
|
|
\param[out] none
|
|
\retval none
|
|
*/
|
|
void adc_watchdog_disable(uint32_t adc_periph)
|
|
{
|
|
ADC_CTL0(adc_periph) &= (uint32_t)~(ADC_CTL0_RWDEN | ADC_CTL0_IWDEN | ADC_CTL0_WDSC | ADC_CTL0_WDCHSEL);
|
|
}
|
|
|
|
/*!
|
|
\brief configure ADC analog watchdog threshold
|
|
\param[in] adc_periph: ADCx,x=0,1,2
|
|
only one among these parameters can be selected
|
|
\param[in] low_threshold: analog watchdog low threshold,0..4095
|
|
\param[in] high_threshold: analog watchdog high threshold,0..4095
|
|
\param[out] none
|
|
\retval none
|
|
*/
|
|
void adc_watchdog_threshold_config(uint32_t adc_periph , uint16_t low_threshold , uint16_t high_threshold)
|
|
{
|
|
ADC_WDLT(adc_periph) = (uint32_t)WDLT_WDLT(low_threshold);
|
|
ADC_WDHT(adc_periph) = (uint32_t)WDHT_WDHT(high_threshold);
|
|
}
|
|
|
|
/*!
|
|
\brief configure ADC oversample mode
|
|
\param[in] adc_periph: ADCx,x=0,1,2
|
|
only one among these parameters can be selected
|
|
\param[in] mode: ADC oversampling mode
|
|
only oneparameter can be selected
|
|
\arg ADC_OVERSAMPLING_ALL_CONVERT: all oversampled conversions for a channel are done consecutively after a trigger
|
|
\arg ADC_OVERSAMPLING_ONE_CONVERT: each oversampled conversion for a channel needs a trigger
|
|
\param[in] shift: ADC oversampling shift
|
|
only oneparameter can be selected
|
|
\arg ADC_OVERSAMPLING_SHIFT_NONE: no oversampling shift
|
|
\arg ADC_OVERSAMPLING_SHIFT_1B: 1-bit oversampling shift
|
|
\arg ADC_OVERSAMPLING_SHIFT_2B: 2-bit oversampling shift
|
|
\arg ADC_OVERSAMPLING_SHIFT_3B: 3-bit oversampling shift
|
|
\arg ADC_OVERSAMPLING_SHIFT_4B: 3-bit oversampling shift
|
|
\arg ADC_OVERSAMPLING_SHIFT_5B: 5-bit oversampling shift
|
|
\arg ADC_OVERSAMPLING_SHIFT_6B: 6-bit oversampling shift
|
|
\arg ADC_OVERSAMPLING_SHIFT_7B: 7-bit oversampling shift
|
|
\arg ADC_OVERSAMPLING_SHIFT_8B: 8-bit oversampling shift
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\param[in] ratio: ADC oversampling ratio
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only oneparameter can be selected
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\arg ADC_OVERSAMPLING_RATIO_MUL2: oversampling ratio multiple 2
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\arg ADC_OVERSAMPLING_RATIO_MUL4: oversampling ratio multiple 4
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\arg ADC_OVERSAMPLING_RATIO_MUL8: oversampling ratio multiple 8
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\arg ADC_OVERSAMPLING_RATIO_MUL16: oversampling ratio multiple 16
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\arg ADC_OVERSAMPLING_RATIO_MUL32: oversampling ratio multiple 32
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\arg ADC_OVERSAMPLING_RATIO_MUL64: oversampling ratio multiple 64
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\arg ADC_OVERSAMPLING_RATIO_MUL128: oversampling ratio multiple 128
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\arg ADC_OVERSAMPLING_RATIO_MUL256: oversampling ratio multiple 256
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\param[out] none
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\retval none
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*/
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void adc_oversample_mode_config(uint32_t adc_periph, uint8_t mode, uint16_t shift, uint8_t ratio)
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{
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if(ADC_OVERSAMPLING_ONE_CONVERT == mode){
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ADC_OVSAMPCTL(adc_periph) |= (uint32_t)ADC_OVSAMPCTL_TOVS;
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}else{
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ADC_OVSAMPCTL(adc_periph) &= ~((uint32_t)ADC_OVSAMPCTL_TOVS);
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}
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/* config the shift and ratio */
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ADC_OVSAMPCTL(adc_periph) &= ~((uint32_t)(ADC_OVSAMPCTL_OVSR | ADC_OVSAMPCTL_OVSS));
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ADC_OVSAMPCTL(adc_periph) |= ((uint32_t)shift | (uint32_t)ratio);
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}
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/*!
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\brief enable ADC oversample mode
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\param[in] adc_periph: ADCx,x=0,1,2
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only one among these parameters can be selected
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\param[out] none
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\retval none
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*/
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void adc_oversample_mode_enable(uint32_t adc_periph)
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{
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ADC_OVSAMPCTL(adc_periph) |= ADC_OVSAMPCTL_OVSEN;
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}
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|
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/*!
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\brief disable ADC oversample mode
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\param[in] adc_periph: ADCx,x=0,1,2
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|
only one among these parameters can be selected
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|
\param[out] none
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\retval none
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*/
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void adc_oversample_mode_disable(uint32_t adc_periph)
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{
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ADC_OVSAMPCTL(adc_periph) &= ~((uint32_t)ADC_OVSAMPCTL_OVSEN);
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}
|