[Add] First commit

2023-05-18 18:53:00 +08:00
commit 179cffc2c1
6607 changed files with 2163514 additions and 0 deletions
--- a/NSPE/Example/ADC/Oversample_shift/main.c
+++ b/NSPE/Example/ADC/Oversample_shift/main.c
@ -0,0 +1,146 @@
+/*!
+    \file    main.c
+    \brief   ADC oversample shift example demo
+
+    \version 2021-10-30, V1.0.0, firmware for GD32W51x
+*/
+
+/*
+    Copyright (c) 2021, 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 "gd32w51x.h"
+#include "systick.h"
+#include <stdio.h>
+#include "gd32w515p_eval.h"
+
+#define BOARD_ADC_CHANNEL               ADC_CHANNEL_0
+#define ADC_GPIO_PORT                   GPIOA
+#define ADC_GPIO_PIN                    GPIO_PIN_0
+
+uint16_t adc_value = 0U;
+
+void rcu_config(void);
+void gpio_config(void);
+void adc_config(void);
+
+/*!
+    \brief      main function
+    \param[in]  none
+    \param[out] none
+    \retval     none
+*/
+int main(void)
+{
+    /* system clocks configuration */
+    rcu_config();
+    /* systick configuration */
+    systick_config();  
+    /* GPIO configuration */
+    gpio_config();
+    /* ADC configuration */
+    adc_config();
+    /* configures COM port */
+    gd_eval_com_init(EVAL_COM0);
+    
+    /* enable ADC software trigger for regular channel */
+    adc_software_trigger_enable(ADC_REGULAR_CHANNEL);
+
+    while(1){
+        adc_flag_clear(ADC_FLAG_EOC);
+        while(SET != adc_flag_get(ADC_FLAG_EOC)){
+        }
+        
+        adc_value = ADC_RDATA;
+        printf("\r\n*ADC oversample shift example demo*\r\n");
+        printf("16 times sample, 4 bits shift: 0x%X\r\n", adc_value);
+        delay_1ms(1000U);
+    }
+}
+
+/*!
+    \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);
+    /* config ADC clock */
+    rcu_periph_clock_enable(RCU_ADC);
+    adc_clock_config(ADC_ADCCK_HCLK_DIV6);
+}
+
+/*!
+    \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(ADC_GPIO_PORT, GPIO_MODE_ANALOG, GPIO_PUPD_NONE, ADC_GPIO_PIN);
+}
+
+/*!
+    \brief      configure the ADC peripheral
+    \param[in]  none
+    \param[out] none
+    \retval     none
+*/
+void adc_config(void)
+{
+    /* ADC contineous function disable */
+    adc_special_function_config(ADC_CONTINUOUS_MODE, ENABLE);
+    /* ADC data alignment config */
+    adc_data_alignment_config(ADC_DATAALIGN_RIGHT);
+    /* ADC external trigger enable */
+    adc_external_trigger_config(ADC_REGULAR_CHANNEL, EXTERNAL_TRIGGER_DISABLE);
+
+    /* ADC channel length config */
+    adc_channel_length_config(ADC_REGULAR_CHANNEL, 1U);
+    /* ADC inserted channel config */
+    adc_regular_channel_config(0U, BOARD_ADC_CHANNEL, ADC_SAMPLETIME_55POINT5);
+
+    /* 16 times sample, 4 bits shift */
+    adc_oversample_mode_config(ADC_OVERSAMPLING_ALL_CONVERT, ADC_OVERSAMPLING_SHIFT_4B, ADC_OVERSAMPLING_RATIO_MUL16);
+    adc_oversample_mode_enable();
+    /* enable ADC interface */
+    adc_enable();
+    /* wait for ADC stability */
+    delay_1ms(1);
+}
+
+/* retarget the C library printf function to the USART */
+int fputc(int ch, FILE *f)
+{
+    usart_data_transmit(EVAL_COM0, (uint8_t)ch);
+    while(RESET == usart_flag_get(EVAL_COM0, USART_FLAG_TBE));
+    return ch;
+}