哪位老师帮忙看看GD32f310的常规定时器配置14怎么没反应代码如下
void timer14_ConfigPWM(void)
{
timer_oc_parameter_struct timer_ocinitpara; //定义结构体
timer_parameter_struct timer_initpara; //定义结构体
/* 使能定时器时钟 */
rcu_periph_clock_enable(RCU_TIMER14);
//选择定时那一个定时器
timer_deinit(TIMER14);
timer_parameter_struct timer_parameter_structuer;//定时器结构体
timer_parameter_structuer.prescaler = 0;//预分频值；不分频
timer_parameter_structuer.period = 2919;//周期
timer_initpara.counterdirection = TIMER_COUNTER_UP; //计数方向
timer_parameter_structuer.alignedmode = TIMER_COUNTER_EDGE; //对其模式
timer_init(TIMER14,&timer_parameter_structuer);
/* 配置定时器通道输出功能 */
timer_ocinitpara.outputstate = TIMER_CCX_ENABLE; //通道输出状态
timer_ocinitpara.ocpolarity = TIMER_OCN_POLARITY_HIGH; //信道互补输出极性较高
timer_channel_output_config(TIMER14, TIMER_CH_0, &timer_ocinitpara);
timer_channel_output_config(TIMER14, TIMER_CH_1, &timer_ocinitpara);
timer_channel_output_config(TIMER14, TIMER_CH_2, &timer_ocinitpara);
timer_channel_output_config(TIMER14, TIMER_CH_3, &timer_ocinitpara);
timer_ocinitpara.outputnstate = TIMER_CCXN_DISABLE; //互补通道输出状态
timer_ocinitpara.ocpolarity = TIMER_OC_POLARITY_HIGH; //通道输出极性
timer_ocinitpara.ocnpolarity = TIMER_OCN_POLARITY_HIGH; //互补通道输出极性
timer_ocinitpara.ocidlestate = TIMER_OC_IDLE_STATE_LOW; //空闲状态下通道输出
timer_ocinitpara.ocnidlestate = TIMER_OCN_IDLE_STATE_LOW; //空闲状态先互补通道输出极性
timer_channel_output_config(TIMER14, TIMER_CH_0, &timer_ocinitpara);
timer_channel_output_config(TIMER14, TIMER_CH_1, &timer_ocinitpara);
timer_channel_output_config(TIMER14, TIMER_CH_2, &timer_ocinitpara);
/* CH0 configuration in PWM mode0, duty cycle 25% */
timer_channel_output_pulse_value_config(TIMER14, TIMER_CH_0, 585);//设置通道比较值 2919*20%=585
timer_channel_output_pulse_value_config(TIMER14, TIMER_CH_1, 1169);//设置通道比较值2919*40%=1169
timer_channel_output_pulse_value_config(TIMER14, TIMER_CH_2, 1753);//设置通道比较值2919*60%=1753
timer_channel_output_pulse_value_config(TIMER14, TIMER_CH_3, 2336);//设置通道比较值2919*80%=2336
timer_channel_output_mode_config(TIMER14, TIMER_CH_0, TIMER_OC_MODE_PWM0);
timer_channel_output_mode_config(TIMER14, TIMER_CH_1, TIMER_OC_MODE_PWM0);
timer_channel_output_mode_config(TIMER14, TIMER_CH_2, TIMER_OC_MODE_PWM0);
timer_channel_output_mode_config(TIMER14, TIMER_CH_3, TIMER_OC_MODE_PWM0);
timer_enable(TIMER14);
}
GPIO配置
/*初始化PWM输出引脚 PB14,15(TIMER14 CH0) */
gpio_mode_set(GPIOB, GPIO_MODE_AF, GPIO_PUPD_NONE,GPIO_PIN_14|GPIO_PIN_15);
gpio_output_options_set(GPIOB, GPIO_OTYPE_PP, GPIO_OSPEED_50MHZ,GPIO_PIN_14|GPIO_PIN_15);
gpio_af_set(GPIOB,GPIO_AF_0,GPIO_PIN_14|GPIO_PIN_15); |
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