#include "Timer.h" #include "Can.h" #include "Timer.h" #include "gd32c10x.h" #include "gd32c10x_gpio.h" #include "gd32c10x_misc.h" #include "gd32c10x_rcu.h" #include "gd32c10x_timer.h" #include #include #include constexpr int TIMER2_PRESCALER = 119; // 120MHz / 120 = 1MHz constexpr int TIMER2_PERIOD = 99; // 1MHz / 100 = 100us constexpr int TIMER1_PRESCALER = 0; // 不分频,计数器时钟为120MHz constexpr int TIMER1_PERIOD = 5999; // 120MHz / (0+1) / (5999+1) = 20kHz constexpr int TIMER1_CH0_PULSE = 0; constexpr int TIMER1_CH1_PULSE = 0; constexpr int TIMER1_CH2_PULSE = 0; constexpr int TIMER1_CH3_COMPARE_VALUE = (TIMER1_PERIOD + 1) * 0.5 - 1; // PWM周期50%位置触发中断 volatile u32 total_us100_counter = 0; // 总计数器,每100微秒增加1 extern u16 adc_value[7]; extern CAN_transmiter CAN0_transmiter; // 添加系统运行时间计数器 extern u32 cnt_test; /** * @brief 设置引脚中断优先级 * @return void * *设置引脚中断优先级 */ void nvic_config(void) { /* 设置NVIC优先级分组,1位抢占优先级,3位响应优先级 */ nvic_priority_group_set(NVIC_PRIGROUP_PRE2_SUB2); /* 使能TIMER2中断,设置抢占优先级为1,子优先级为1 */ nvic_irq_enable(TIMER2_IRQn, 0, 1); nvic_irq_enable(TIMER1_IRQn, 0, 2); } /** * @brief 配置定时器2 * @return void * *配置定时器2,用于定时执行FOC控制、采样、CAN发送等任务 */ void TIMER2_config(void) { /* ---------------------------------------------------------------------------- TIMER2 Configuration: TIMER2CLK = SystemCoreClock/120 = 1MHz, the period is 100us(100/1000000 = 100us). ---------------------------------------------------------------------------- */ timer_parameter_struct timer_struct; /* 使能TIMER2时钟 */ rcu_periph_clock_enable(RCU_TIMER2); /* 复位TIMER2外设到默认状态 */ timer_deinit(TIMER2); /* 初始化TIMER初始化参数结构体 */ timer_struct_para_init(&timer_struct); /* TIMER2配置参数设置 */ timer_struct.prescaler = TIMER2_PRESCALER; /* 预分频值:120分频(从0开始计数) */ timer_struct.alignedmode = TIMER_COUNTER_EDGE; /* 边沿对齐模式 */ timer_struct.counterdirection = TIMER_COUNTER_UP; /* 向上计数模式 */ timer_struct.period = TIMER2_PERIOD; /* 自动重装载值:100次计数(从0开始计数) */ timer_struct.clockdivision = TIMER_CKDIV_DIV1; /* 时钟分频值:1分频 */ timer_init(TIMER2, &timer_struct); /* 清除更新中断标志位 */ timer_interrupt_flag_clear(TIMER2, TIMER_INT_FLAG_UP); /* 使能更新中断 */ timer_interrupt_enable(TIMER2, TIMER_INT_UP); /* 使能TIMER2 */ timer_enable(TIMER2); } /** * @brief 配置TIMER2中断 * @return void */ void User_timer_init(void) { /* 配置TIMER2 */ TIMER2_config(); /* 配置TIMER2中断 */ nvic_config(); } /** * @brief TIMER2中断处理函数 * @return void */ void TIMER2_IRQHandler(void) { // 检查更新中断标志并处理 if (timer_interrupt_flag_get(TIMER2, TIMER_INT_UP) != RESET) { // 清除更新中断标志 timer_interrupt_flag_clear(TIMER2, TIMER_INT_UP); // 每100us执行一次的操作 } }