230 lines
6.9 KiB
C++
230 lines
6.9 KiB
C++
#include "Timer.h"
|
||
#include "gd32c10x.h"
|
||
#include "gd32c10x_gpio.h"
|
||
#include "gd32c10x_timer.h"
|
||
#include <stdbool.h>
|
||
#include <stdint.h>
|
||
#include <stdio.h>
|
||
|
||
constexpr int TIMER1_PRESCALER = 11999;
|
||
constexpr int TIMER1_PERIOD = 9999;
|
||
constexpr int TIMER0_PRESCALER = 5999;
|
||
constexpr int TIMER0_PERIOD = 15999;
|
||
constexpr int TIMER0_CH0_PULSE = 4000;
|
||
constexpr int TIMER0_CH1_PULSE = 6000;
|
||
constexpr int TIMER0_CH2_PULSE = 8000;
|
||
|
||
/**
|
||
* @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_PRE1_SUB3);
|
||
/* 使能TIMER1中断，设置抢占优先级为1，子优先级为1 */
|
||
nvic_irq_enable(TIMER1_IRQn, 1, 1);
|
||
}
|
||
|
||
/**
|
||
* @brief 配置定时器1
|
||
* @return void
|
||
*
|
||
*配置定时器1
|
||
*/
|
||
void timer1_config(void) {
|
||
/* ----------------------------------------------------------------------------
|
||
TIMER1 Configuration:
|
||
TIMER1CLK = SystemCoreClock/12000 = 10KHz, the period is 1s(10000/10000 =
|
||
1s).
|
||
----------------------------------------------------------------------------
|
||
*/
|
||
timer_parameter_struct timer_initpara;
|
||
|
||
/* 使能TIMER1时钟 */
|
||
rcu_periph_clock_enable(RCU_TIMER1);
|
||
|
||
/* 复位TIMER1外设到默认状态 */
|
||
timer_deinit(TIMER1);
|
||
/* 初始化TIMER初始化参数结构体 */
|
||
timer_struct_para_init(&timer_initpara);
|
||
/* TIMER1配置参数设置 */
|
||
timer_initpara.prescaler =
|
||
TIMER1_PRESCALER; /* 预分频值：12000分频(从0开始计数) */
|
||
timer_initpara.alignedmode = TIMER_COUNTER_EDGE; /* 边沿对齐模式 */
|
||
timer_initpara.counterdirection = TIMER_COUNTER_UP; /* 向上计数模式 */
|
||
timer_initpara.period =
|
||
TIMER1_PERIOD; /* 自动重装载值：10000次计数(从0开始计数) */
|
||
timer_initpara.clockdivision = TIMER_CKDIV_DIV1; /* 时钟分频值：1分频 */
|
||
timer_init(TIMER1, &timer_initpara);
|
||
|
||
/* 清除更新中断标志位 */
|
||
timer_interrupt_flag_clear(TIMER1, TIMER_INT_FLAG_UP);
|
||
/* 使能更新中断 */
|
||
timer_interrupt_enable(TIMER1, TIMER_INT_UP);
|
||
|
||
/* 使能TIMER1 */
|
||
timer_enable(TIMER1);
|
||
}
|
||
|
||
/**
|
||
* @brief 配置TIMER1中断
|
||
* @return void
|
||
*/
|
||
void User_timer_init(void) {
|
||
/* 配置TIMER1中断 */
|
||
nvic_config();
|
||
/* 配置TIMER1 */
|
||
timer1_config();
|
||
}
|
||
|
||
/**
|
||
* @brief TIMER1中断处理函数
|
||
* @return void
|
||
*/
|
||
void TIMER1_IRQHandler(void) {
|
||
u32 cnt = timer_counter_read(TIMER1);
|
||
|
||
// 根据计数器值执行不同的定时任务
|
||
// 每100us执行一次
|
||
// (此处可以添加需要每100us执行的代码)
|
||
|
||
// 每1ms执行一次 (100us * 10)
|
||
if (cnt % 10 == 0) {
|
||
// 添加需要每1ms执行的代码
|
||
}
|
||
|
||
// 每10ms执行一次 (100us * 100)
|
||
if (cnt % 100 == 0) {
|
||
// 添加需要每10ms执行的代码
|
||
}
|
||
|
||
// 每100ms执行一次 (100us * 1000)
|
||
if (cnt % 1000 == 0) {
|
||
// 添加需要每100ms执行的代码
|
||
}
|
||
|
||
// 每1s执行一次 (100us * 10000)
|
||
if (cnt % 10000 == 0) {
|
||
// 添加需要每1s执行的代码
|
||
}
|
||
|
||
if (SET == timer_interrupt_flag_get(TIMER1, TIMER_INT_FLAG_UP)) {
|
||
/* 清除更新中断标志位 */
|
||
timer_interrupt_flag_clear(TIMER1, TIMER_INT_FLAG_UP);
|
||
}
|
||
}
|
||
|
||
/**
|
||
* @brief TIMER0 GPIO配置函数
|
||
*/
|
||
void timer0_gpio_config(void) {
|
||
// 时钟使能
|
||
rcu_periph_clock_enable(RCU_GPIOA);
|
||
rcu_periph_clock_enable(RCU_AF);
|
||
|
||
// TIMER0 GPIO初始化
|
||
gpio_init(GPIOA, GPIO_MODE_AF_PP, GPIO_OSPEED_50MHZ, GPIO_PIN_0);
|
||
gpio_init(GPIOA, GPIO_MODE_AF_PP, GPIO_OSPEED_50MHZ, GPIO_PIN_1);
|
||
gpio_init(GPIOA, GPIO_MODE_AF_PP, GPIO_OSPEED_50MHZ, GPIO_PIN_2);
|
||
|
||
/* 配置TIMER0完全重映射 */
|
||
gpio_pin_remap_config(GPIO_TIMER0_FULL_REMAP, ENABLE);
|
||
}
|
||
|
||
|
||
/**
|
||
* @brief TIMER0 配置函数
|
||
*/
|
||
void timer0_config(void) {
|
||
/* -----------------------------------------------------------------------
|
||
TIMER0配置：
|
||
生成3路具有不同占空比的互补PWM信号：
|
||
TIMER0CLK固定为systemcoreclock，TIMER0预分频器设置为6000，因此
|
||
TIMER0计数器时钟为20KHz。
|
||
三个占空比的计算如下：
|
||
通道0的占空比设置为25%，因此通道1N设置为75%。
|
||
通道1的占空比设置为50%，因此通道2N设置为50%。
|
||
通道2的占空比设置为75%，因此通道3N设置为25%。
|
||
----------------------------------------------------------------------- */
|
||
timer_oc_parameter_struct timer_ocinitpara;
|
||
timer_parameter_struct timer_initpara;
|
||
|
||
rcu_periph_clock_enable(RCU_TIMER0);
|
||
|
||
timer_deinit(TIMER0);
|
||
/* initialize TIMER init parameter struct */
|
||
timer_struct_para_init(&timer_initpara);
|
||
/* TIMER0 configuration */
|
||
timer_initpara.prescaler = TIMER0_PRESCALER;
|
||
timer_initpara.alignedmode = TIMER_COUNTER_EDGE;
|
||
timer_initpara.counterdirection = TIMER_COUNTER_UP;
|
||
timer_initpara.period = TIMER0_PERIOD;
|
||
timer_initpara.clockdivision = TIMER_CKDIV_DIV1;
|
||
timer_initpara.repetitioncounter = 0;
|
||
timer_init(TIMER0, &timer_initpara);
|
||
|
||
/* initialize TIMER channel output parameter struct */
|
||
timer_channel_output_struct_para_init(&timer_ocinitpara);
|
||
/* CH0, CH1 and CH2 configuration in PWM mode */
|
||
timer_ocinitpara.outputstate = TIMER_CCX_ENABLE;
|
||
timer_ocinitpara.outputnstate = TIMER_CCXN_DISABLE;
|
||
timer_ocinitpara.ocpolarity = TIMER_OC_POLARITY_HIGH;
|
||
timer_ocinitpara.ocnpolarity = TIMER_OCN_POLARITY_HIGH;
|
||
timer_ocinitpara.ocidlestate = TIMER_OC_IDLE_STATE_LOW;
|
||
timer_ocinitpara.ocnidlestate = TIMER_OCN_IDLE_STATE_LOW;
|
||
|
||
timer_channel_output_config(TIMER0, TIMER_CH_0, &timer_ocinitpara);
|
||
timer_channel_output_config(TIMER0, TIMER_CH_1, &timer_ocinitpara);
|
||
timer_channel_output_config(TIMER0, TIMER_CH_2, &timer_ocinitpara);
|
||
|
||
timer_channel_output_pulse_value_config(TIMER0, TIMER_CH_0,
|
||
TIMER0_CH0_PULSE);
|
||
timer_channel_output_mode_config(TIMER0, TIMER_CH_0, TIMER_OC_MODE_PWM0);
|
||
timer_channel_output_shadow_config(TIMER0, TIMER_CH_0,
|
||
TIMER_OC_SHADOW_DISABLE);
|
||
|
||
timer_channel_output_pulse_value_config(TIMER0, TIMER_CH_1,
|
||
TIMER0_CH1_PULSE);
|
||
timer_channel_output_mode_config(TIMER0, TIMER_CH_1, TIMER_OC_MODE_PWM0);
|
||
timer_channel_output_shadow_config(TIMER0, TIMER_CH_1,
|
||
TIMER_OC_SHADOW_DISABLE);
|
||
|
||
timer_channel_output_pulse_value_config(TIMER0, TIMER_CH_2,
|
||
TIMER0_CH2_PULSE);
|
||
timer_channel_output_mode_config(TIMER0, TIMER_CH_2, TIMER_OC_MODE_PWM0);
|
||
timer_channel_output_shadow_config(TIMER0, TIMER_CH_2,
|
||
TIMER_OC_SHADOW_DISABLE);
|
||
|
||
timer_primary_output_config(TIMER0, ENABLE);
|
||
|
||
// 自动重载模式使能和启动TIMER0
|
||
timer_auto_reload_shadow_enable(TIMER0);
|
||
timer_enable(TIMER0);
|
||
}
|
||
|
||
/**
|
||
* @brief TIMER0 GPIO config
|
||
*/
|
||
void Timer0_init(void) {
|
||
timer0_gpio_config();
|
||
timer0_config();
|
||
}
|
||
|
||
/*!
|
||
\brief set PWM
|
||
\param[in] channel: TIMER_CH_0/TIMER_CH_1/TIMER_CH_2/TIMER_CH_3 (valid
|
||
values: 0, 1, 2, 3)
|
||
\param[in] pulse: PWM pulse value
|
||
\param[out] none
|
||
\retval none
|
||
\note The channel parameter must be between 0 and 3 inclusive.
|
||
*/
|
||
void Set_Pwm(u16 channel, u32 palse) {
|
||
if (channel <= 3) {
|
||
timer_channel_output_pulse_value_config(TIMER0, channel, palse);
|
||
} else {
|
||
} // Ensure channel is within valid range
|
||
}
|