Initial commit

2026-02-18 08:01:12 +00:00 · 2020-02-07 14:57:44 +01:00
commit 836e321549
551 changed files with 113644 additions and 0 deletions
--- a/docs/GD32F1x0_Firmware_Library_v3.1.0/Examples/CMP/Switch/main.c
+++ b/docs/GD32F1x0_Firmware_Library_v3.1.0/Examples/CMP/Switch/main.c
@@ -0,0 +1,97 @@
+/*!
+    \file  main.c
+    \brief comparator switch
+*/
+
+/*
+    Copyright (C) 2017 GigaDevice
+
+    2014-12-26, V1.0.0, platform GD32F1x0(x=3,5)
+    2016-01-15, V2.0.0, platform GD32F1x0(x=3,5,7,9)
+    2016-04-30, V3.0.0, firmware update for GD32F1x0(x=3,5,7,9)
+    2017-06-19, V3.1.0, firmware update for GD32F1x0(x=3,5,7,9)
+*/
+
+#include "gd32f1x0.h"
+#include <stdio.h>
+
+void rcu_config(void);
+void gpio_config(void);
+void dac_config(void);
+/*!
+    \brief      main function
+    \param[in]  none
+    \param[out] none
+    \retval     none
+*/
+int main(void)
+{
+    /* configure RCU */
+    rcu_config();
+    
+    /* configure GPIO */
+    gpio_config();
+    
+    /* configure DAC */
+    dac_config();
+    
+    /* set data for DAC0 */
+    dac0_data_set(DAC_ALIGN_12B_R, 0xA00);
+    
+    dac0_software_trigger_enable();
+    
+    /* configure CMP0 */
+    cmp_mode_init(CMP0, CMP_VERYLOWSPEED, CMP_1_2VREFINT, CMP_HYSTERESIS_NO);
+    cmp_output_init(CMP0, CMP_OUTPUT_NONE, CMP_OUTPUT_POLARITY_NOINVERTED);
+    
+    /* enable CMP0 switch */
+    cmp_switch_enable();
+    
+    /* enable CMP0 */
+    cmp_enable(CMP0);
+    
+    while(1);
+}
+
+/*!
+    \brief      configure RCU
+    \param[in]  none
+    \param[out] none
+    \retval     none
+*/
+void rcu_config(void)
+{
+    rcu_periph_clock_enable(RCU_GPIOA);
+    rcu_periph_clock_enable(RCU_DAC);
+    rcu_periph_clock_enable(RCU_CFGCMP);
+}
+
+/*!
+    \brief      configure GPIO
+    \param[in]  none
+    \param[out] none
+    \retval     none
+*/
+void gpio_config(void)
+{
+    /* configure PA4 */
+    gpio_output_options_set(GPIOA, GPIO_OTYPE_PP, GPIO_OSPEED_50MHZ,GPIO_PIN_4);
+    gpio_mode_set(GPIOA, GPIO_MODE_ANALOG, GPIO_PUPD_PULLUP, GPIO_PIN_4);
+    /* configure PA6 */
+    gpio_output_options_set(GPIOA, GPIO_OTYPE_PP, GPIO_OSPEED_50MHZ,GPIO_PIN_6);
+    gpio_mode_set(GPIOA, GPIO_MODE_AF, GPIO_PUPD_PULLUP, GPIO_PIN_6);
+    gpio_af_set(GPIOA, GPIO_AF_7, GPIO_PIN_6);
+}
+
+/*!
+    \brief      configure dac
+    \param[in]  none
+    \param[out] none
+    \retval     none
+*/
+void dac_config(void)
+{
+    dac0_trigger_source_config(DAC_TRIGGER_SOFTWARE);
+    dac0_output_buffer_enable();
+    dac0_enable();
+}