173 lines
4.6 KiB
C
173 lines
4.6 KiB
C
/*!
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\file gd32w51x_it.c
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\brief interrupt service routines
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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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extern uint8_t transfersize;
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extern uint8_t receivesize;
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extern __IO uint8_t txcount;
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extern __IO uint16_t rxcount;
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extern uint8_t receiver_buffer[32];
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extern uint8_t transmitter_buffer[];
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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 SecureFault 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 SecureFault_Handler(void)
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{
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/* if Secure 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 USART RBNE interrupt request and TBE interrupt request
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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 USART2_IRQHandler(void)
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{
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if(RESET != usart_interrupt_flag_get(USART2, USART_INT_FLAG_RBNE)){
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/* receive data */
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receiver_buffer[rxcount++] = usart_data_receive(USART2);
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if(rxcount == receivesize){
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usart_interrupt_disable(USART2, USART_INT_RBNE);
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}
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}
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if(RESET != usart_interrupt_flag_get(USART2, USART_INT_FLAG_TBE)){
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/* transmit data */
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usart_data_transmit(USART2, transmitter_buffer[txcount++]);
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if(txcount == transfersize){
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usart_interrupt_disable(USART2, USART_INT_TBE);
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}
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}
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}
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