170 lines
4.5 KiB
C
170 lines
4.5 KiB
C
/*!
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\file gd32w51x_it.c
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\brief interrupt service routines for gd32w51x
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\version 2021-10-30, V1.0.0, firmware for GD32W51x
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*/
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/*
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Copyright (c) 2021, GigaDevice Semiconductor Inc.
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Redistribution and use in source and binary forms, with or without modification,
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are permitted provided that the following conditions are met:
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1. Redistributions of source code must retain the above copyright notice, this
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list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright notice,
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this list of conditions and the following disclaimer in the documentation
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and/or other materials provided with the distribution.
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3. Neither the name of the copyright holder nor the names of its contributors
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may be used to endorse or promote products derived from this software without
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specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
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INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
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OF SUCH DAMAGE.
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*/
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#include "gd32w51x_it.h"
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#include <stdio.h>
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uint32_t ic1value = 0,ic2value = 0;
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__IO uint16_t dutycycle = 0;
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__IO float frequency = 0;
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uint8_t data_valid = 0;
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/*!
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\brief this function handles NMI exception
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\param[in] none
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\param[out] none
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\retval none
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*/
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void NMI_Handler(void)
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{
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}
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/*!
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\brief this function handles HardFault exception
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\param[in] none
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\param[out] none
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\retval none
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*/
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void HardFault_Handler(void)
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{
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/* if Hard Fault exception occurs, go to infinite loop */
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while (1){
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}
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}
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/*!
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\brief this function handles MemManage exception
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\param[in] none
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\param[out] none
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\retval none
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*/
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void MemManage_Handler(void)
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{
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/* if Memory Manage exception occurs, go to infinite loop */
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while (1){
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}
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}
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/*!
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\brief this function handles BusFault exception
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\param[in] none
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\param[out] none
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\retval none
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*/
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void BusFault_Handler(void)
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{
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/* if Bus Fault exception occurs, go to infinite loop */
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while (1){
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}
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}
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/*!
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\brief this function handles UsageFault exception
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\param[in] none
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\param[out] none
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\retval none
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*/
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void UsageFault_Handler(void)
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{
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/* if Usage Fault exception occurs, go to infinite loop */
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while (1){
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}
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}
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/*!
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\brief this function handles SVC exception
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\param[in] none
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\param[out] none
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\retval none
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*/
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void SVC_Handler(void)
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{
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}
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/*!
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\brief this function handles DebugMon exception
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\param[in] none
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\param[out] none
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\retval none
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*/
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void DebugMon_Handler(void)
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{
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}
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/*!
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\brief this function handles PendSV exception
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\param[in] none
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\param[out] none
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\retval none
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*/
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void PendSV_Handler(void)
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{
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}
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/*!
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\brief this function handles SysTick exception
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\param[in] none
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\param[out] none
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\retval none
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*/
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void SysTick_Handler(void)
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{
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}
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/**
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* @brief This function handles TIMER2 interrupt request.
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* @param None
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* @retval None
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*/
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void TIMER2_IRQHandler(void)
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{
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if(SET == timer_interrupt_flag_get(TIMER2,TIMER_INT_FLAG_CH0)){
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/* clear channel 0 interrupt bit */
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timer_interrupt_flag_clear(TIMER2,TIMER_INT_FLAG_CH0);
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/* read channel 0 capture value */
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ic1value = timer_channel_capture_value_register_read(TIMER2,TIMER_CH_0)+1;
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if(0 != ic1value){
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/* read channel 1 capture value */
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ic2value = timer_channel_capture_value_register_read(TIMER2,TIMER_CH_1)+1;
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/* calculate the duty cycle value */
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dutycycle = (ic2value * 100) / ic1value;
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/* calculate the frequency value */
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frequency = (float)1000000 / ic1value;
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}
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}
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}
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