84 lines
1.8 KiB
C
84 lines
1.8 KiB
C
/********************************** (C) COPYRIGHT *******************************
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* File Name : ch32v00x_it.c
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* Author : WCH
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* Version : V1.0.0
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* Date : 2022/08/08
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* Description : Main Interrupt Service Routines.
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*********************************************************************************
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* Copyright (c) 2021 Nanjing Qinheng Microelectronics Co., Ltd.
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* Attention: This software (modified or not) and binary are used for
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* microcontroller manufactured by Nanjing Qinheng Microelectronics.
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*******************************************************************************/
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#include <ch32v00x_it.h>
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#include <ch32v00x.h>
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#include "src/adc.h"
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#include "src/btn.h"
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#include "src/led.h"
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void NMI_Handler(void);
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void HardFault_Handler(void);
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void SysTick_Handler(void) __attribute__((interrupt("WCH-Interrupt-fast")));
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/*********************************************************************
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* @fn NMI_Handler
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*
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* @brief This function handles NMI exception.
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*
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* @return 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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* @fn HardFault_Handler
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*
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* @brief This function handles Hard Fault exception.
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*
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* @return none
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*/
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void HardFault_Handler(void)
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{
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while (1);
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}
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volatile uint16_t ticnt;
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volatile uint32_t uptime;
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void SysTick_Handler(void)
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{
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if (++ticnt > 0x7ff) {
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ticnt = 0;
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uptime++;
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}
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// send new LEDs (1/128 duty)
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if ((ticnt & 0xf) == 3) {
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led_send();
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}
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// process buttons (1/512 duty)
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if ((ticnt & 0x3) == 0) {
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btn_poll();
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}
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// process ADC (1/256 duty)
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if ((ticnt & 0x07) == 1) {
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adc_convert();
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}
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if ((ticnt & 0x07) == 2) {
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adc_read();
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}
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// clear comparison flag
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SysTick->SR = 0;
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return;
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}
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