123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179 |
- /*!
- \file main.c
- \brief DAC ADC convert demo
- \version 2017-02-10, V1.0.0, firmware for GD32F30x
- \version 2018-10-10, V1.1.0, firmware for GD32F30x
- \version 2018-12-25, V2.0.0, firmware for GD32F30x
- \version 2020-09-30, V2.1.0, firmware for GD32F30x
- */
- /*
- Copyright (c) 2023, GigaDevice Semiconductor Inc.
- Redistribution and use in source and binary forms, with or without modification,
- are permitted provided that the following conditions are met:
- 1. Redistributions of source code must retain the above copyright notice, this
- list of conditions and the following disclaimer.
- 2. Redistributions in binary form must reproduce the above copyright notice,
- this list of conditions and the following disclaimer in the documentation
- and/or other materials provided with the distribution.
- 3. Neither the name of the copyright holder nor the names of its contributors
- may be used to endorse or promote products derived from this software without
- specific prior written permission.
- THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
- WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
- IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
- INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
- WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
- OF SUCH DAMAGE.
- */
- #include "gd32f30x.h"
- #include "systick.h"
- /* configure RCU peripheral */
- void rcu_config(void);
- /* configure GPIO peripheral */
- void gpio_config(void);
- /* configure NVIC peripheral */
- void nvic_config(void);
- /* configure ADC peripheral */
- void adc_config(void);
- /* configure DAC peripheral */
- void dac_config(void);
- /*!
- \brief main function
- \param[in] none
- \param[out] none
- \retval none
- */
- int main(void)
- {
- /* configure systick */
- systick_config();
- /* configure RCU peripheral */
- rcu_config();
- /* configure GPIO peripheral */
- gpio_config();
- /* configure NVIC peripheral */
- nvic_config();
- /* configure ADC peripheral */
- adc_config();
- /* configure DAC peripheral */
- dac_config();
- while(1) {
- }
- }
- /*!
- \brief configure RCU peripheral
- \param[in] none
- \param[out] none
- \retval none
- */
- void rcu_config(void)
- {
- /* enable GPIOA clock */
- rcu_periph_clock_enable(RCU_GPIOA);
- /* enable GPIOC clock */
- rcu_periph_clock_enable(RCU_GPIOC);
- /* enable ADC clock */
- rcu_periph_clock_enable(RCU_ADC0);
- /* enable DAC clock */
- rcu_periph_clock_enable(RCU_DAC);
- }
- /*!
- \brief configure GPIO periphera
- \param[in] none
- \param[out] none
- \retval none
- */
- void gpio_config(void)
- {
- /* configure PC3 as ADC input */
- gpio_init(GPIOC, GPIO_MODE_AIN, GPIO_OSPEED_50MHZ, GPIO_PIN_3);
- /* configure PA4 as DAC output */
- gpio_init(GPIOA, GPIO_MODE_AIN, GPIO_OSPEED_50MHZ, GPIO_PIN_4);
- }
- /*!
- \brief configure NVIC peripheral
- \param[in] none
- \param[out] none
- \retval none
- */
- void nvic_config(void)
- {
- nvic_priority_group_set(NVIC_PRIGROUP_PRE2_SUB2);
- nvic_irq_enable(ADC0_1_IRQn, 0, 0);
- }
- /*!
- \brief configure ADC peripheral
- \param[in] none
- \param[out] none
- \retval none
- */
- void adc_config(void)
- {
- /* ADC continuous function enable */
- adc_special_function_config(ADC0, ADC_CONTINUOUS_MODE, ENABLE);
- /* ADC data alignment config */
- adc_data_alignment_config(ADC0, ADC_DATAALIGN_RIGHT);
- /* ADC channel length config */
- adc_channel_length_config(ADC0, ADC_REGULAR_CHANNEL, 1);
- /* ADC regular channel config */
- adc_regular_channel_config(ADC0, 0, ADC_CHANNEL_13, ADC_SAMPLETIME_55POINT5);
- /* ADC external trigger enable */
- adc_external_trigger_config(ADC0, ADC_REGULAR_CHANNEL, ENABLE);
- /* ADC trigger config */
- adc_external_trigger_source_config(ADC0, ADC_REGULAR_CHANNEL, ADC0_1_2_EXTTRIG_REGULAR_NONE);
- /* enable ADC interface */
- adc_enable(ADC0);
- delay_1ms(1);
- /* ADC calibration and reset calibration */
- adc_calibration_enable(ADC0);
- /* ADC interrupt enable */
- adc_interrupt_flag_clear(ADC0, ADC_INT_FLAG_EOC);
- adc_interrupt_enable(ADC0, ADC_INT_EOC);
- /* enable ADC software trigger */
- adc_software_trigger_enable(ADC0, ADC_REGULAR_CHANNEL);
- }
- /*!
- \brief configure DAC peripheral
- \param[in] none
- \param[out] none
- \retval none
- */
- void dac_config(void)
- {
- /* initialize DAC */
- dac_deinit(DAC0);
- /* DAC trigger config */
- dac_trigger_source_config(DAC0, DAC_OUT0, DAC_TRIGGER_SOFTWARE);
- /* DAC trigger enable */
- dac_trigger_enable(DAC0, DAC_OUT0);
- /* DAC wave mode config */
- dac_wave_mode_config(DAC0, DAC_OUT0, DAC_WAVE_DISABLE);
- /* DAC output buffer config */
- dac_output_buffer_enable(DAC0, DAC_OUT0);
- /* DAC enable */
- dac_enable(DAC0, DAC_OUT0);
- }
|