[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/EXTI/Key_external_interrupt_mode/main.c
+++ b/NSPE/Example/EXTI/Key_external_interrupt_mode/main.c
@ -0,0 +1,97 @@
+/*!
+    \file    main.c
+    \brief   the example of EXTI which generates an interrupt request and toggle the LED
+
+    \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 "gd32w515p_eval.h"
+
+void key_gpio_init(void);
+void key_exti_init(void);
+
+/*!
+    \brief      main function
+    \param[in]  none
+    \param[out] none
+    \retval     none
+*/
+int main(void)
+{
+    /* configure led GPIO port */ 
+    gd_eval_led_init(LED1);
+    /* initialize the key */
+    key_gpio_init();
+    key_exti_init();
+
+    /* turn on LED1 */
+    gd_eval_led_on(LED1);
+    
+    while (1){
+    }
+}
+
+/*!
+    \brief      initialize the key GPIO
+    \param[in]  none
+    \param[out] none
+    \retval     none
+*/
+void key_gpio_init(void)
+{
+    /* enable the WAKEUP key gpio clock */
+    rcu_periph_clock_enable(RCU_GPIOA);
+    /* configure button pin as input */
+    gpio_mode_set(GPIOA, GPIO_MODE_INPUT, GPIO_PUPD_NONE, GPIO_PIN_2);
+}
+
+/*!
+    \brief      initialize the EXTI configuration of the key
+    \param[in]  none
+    \param[out] none
+    \retval     none
+*/
+void key_exti_init(void)
+{
+    /* enable the CFGCMP clock */
+    rcu_periph_clock_enable(RCU_SYSCFG);
+    /* configure NVIC priority group */
+    nvic_priority_group_set(NVIC_PRIGROUP_PRE2_SUB2);
+    /* enable and set key EXTI interrupt to the specified priority */
+    nvic_irq_enable(EXTI2_IRQn, 1U, 1U);
+
+    /* connect key EXTI line to key GPIO pin */
+    syscfg_exti_line_config(EXTI_SOURCE_GPIOA, EXTI_SOURCE_PIN2);
+
+    /* configure key EXTI line */
+    exti_init(EXTI_2, EXTI_INTERRUPT, EXTI_TRIG_FALLING);
+    exti_interrupt_flag_clear(EXTI_2);
+}