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哈拎 / GD32E230

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main_adjust_Joystick.c 6.48 KB
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哈拎 authored 2021-09-03 15:58 . change app to simple_app
/*!
\file main.c
\brief led spark with systick, USART print and key example
\version 2019-02-19, V1.0.0, firmware for GD32E23x
*/
/*
Copyright (c) 2019, GigaDevice Semiconductor Inc.
All rights reserved.
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 "gd32e23x.h"
#include "systick.h"
#include <stdio.h>
#include "main.h"
//#include "gd32e230c_eval.h"
#include "config.h"
/*!
\brief main function
\param[in] none
\param[out] none
\retval none
*/
void uart0_init(void)
{
/* enable COM GPIO clock */
rcu_periph_clock_enable(RCU_GPIOA);
/* enable USART clock */
rcu_periph_clock_enable(RCU_USART0);
/* connect port to USARTx_Tx */
gpio_af_set(GPIOA, GPIO_AF_1, GPIO_PIN_2);
/* connect port to USARTx_Rx */
gpio_af_set(GPIOA, GPIO_AF_1, GPIO_PIN_3);
/* configure USART Tx as alternate function push-pull */
gpio_mode_set(GPIOA, GPIO_MODE_AF, GPIO_PUPD_PULLUP, GPIO_PIN_2);
gpio_output_options_set(GPIOA, GPIO_OTYPE_PP, GPIO_OSPEED_10MHZ, GPIO_PIN_2);
/* configure USART Rx as alternate function push-pull */
gpio_mode_set(GPIOA, GPIO_MODE_AF, GPIO_PUPD_PULLUP, GPIO_PIN_3);
gpio_output_options_set(GPIOA, GPIO_OTYPE_PP, GPIO_OSPEED_10MHZ, GPIO_PIN_3);
/* USART configure */
usart_deinit(USART0);
usart_baudrate_set(USART0, 115200U);
usart_receive_config(USART0, USART_RECEIVE_ENABLE);
usart_transmit_config(USART0, USART_TRANSMIT_ENABLE);
usart_enable(USART0);
}
uint16_t adc_value[2];
/*!
\brief configure the DMA peripheral
\param[in] none
\param[out] none
\retval none
*/
void dma_config(void)
{
/* ADC_DMA_channel configuration */
dma_parameter_struct dma_data_parameter;
/* ADC DMA_channel configuration */
dma_deinit(DMA_CH0);
/* initialize DMA single data mode */
dma_data_parameter.periph_addr = (uint32_t)(&ADC_RDATA);
dma_data_parameter.periph_inc = DMA_PERIPH_INCREASE_DISABLE;
dma_data_parameter.memory_addr = (uint32_t)(&adc_value);
dma_data_parameter.memory_inc = DMA_MEMORY_INCREASE_ENABLE;
dma_data_parameter.periph_width = DMA_PERIPHERAL_WIDTH_16BIT;
dma_data_parameter.memory_width = DMA_MEMORY_WIDTH_16BIT;
dma_data_parameter.direction = DMA_PERIPHERAL_TO_MEMORY;
dma_data_parameter.number = 2U;
dma_data_parameter.priority = DMA_PRIORITY_HIGH;
dma_init(DMA_CH0, &dma_data_parameter);
dma_circulation_enable(DMA_CH0);
/* enable DMA channel */
dma_channel_enable(DMA_CH0);
}
/*!
\brief configure the GPIO peripheral
\param[in] none
\param[out] none
\retval none
*/
void gpio_config(void)
{
/* config the GPIO as analog mode */
gpio_mode_set(GPIOA, GPIO_MODE_ANALOG, GPIO_PUPD_NONE, GPIO_PIN_0 | GPIO_PIN_1 );
}
/*!
\brief configure the ADC peripheral
\param[in] none
\param[out] none
\retval none
*/
void adc_config(void)
{
/* ADC contineous function enable */
adc_special_function_config(ADC_SCAN_MODE, ENABLE);
adc_special_function_config(ADC_CONTINUOUS_MODE, ENABLE);
/* ADC trigger config */
adc_external_trigger_source_config(ADC_REGULAR_CHANNEL, ADC_EXTTRIG_REGULAR_NONE);
/* ADC data alignment config */
adc_data_alignment_config(ADC_DATAALIGN_RIGHT);
/* ADC channel length config */
adc_channel_length_config(ADC_REGULAR_CHANNEL, 2U);
/* ADC regular channel config */
adc_regular_channel_config(0U, ADC_CHANNEL_0, ADC_SAMPLETIME_55POINT5);
adc_regular_channel_config(1U, ADC_CHANNEL_1, ADC_SAMPLETIME_55POINT5);
adc_external_trigger_config(ADC_REGULAR_CHANNEL, ENABLE);
/* enable ADC interface */
adc_enable();
delay_1ms(1U);
/* ADC calibration and reset calibration */
adc_calibration_enable();
/* ADC DMA function enable */
adc_dma_mode_enable();
/* ADC software trigger enable */
adc_interrupt_enable(ADC_INT_EOC);
nvic_irq_enable(ADC_CMP_IRQn, 0U);
adc_software_trigger_enable(ADC_REGULAR_CHANNEL);
}
void ADC_CMP_IRQHandler(void)
{
/* clear the ADC interrupt or status flag */
adc_interrupt_flag_clear(ADC_INT_EOC);
printf("%d,%d,\n",adc_value[0],adc_value[1]);
}
/*!
\brief configure the different system clocks
\param[in] none
\param[out] none
\retval none
*/
void rcu_config(void)
{
/* enable GPIOC clock */
rcu_periph_clock_enable(RCU_GPIOA);
/* enable ADC clock */
rcu_periph_clock_enable(RCU_ADC);
/* enable DMA clock */
rcu_periph_clock_enable(RCU_DMA);
/* config ADC clock */
rcu_adc_clock_config(RCU_ADCCK_APB2_DIV6);
}
int main(void)
{
/* configure systick */
systick_config();
/* initilize the LEDs, USART and key */
uart0_init();
rcu_config();
gpio_config();
/* DMA configuration */
dma_config();
/* ADC configuration */
adc_config();
while (1){
}
}
/* retarget the C library printf function to the USART */
int fputc(int ch, FILE *f)
{
usart_data_transmit(USART0, (uint8_t)ch);
while(RESET == usart_flag_get(USART0, USART_FLAG_TBE));
return ch;
}

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