• GD32 RT-Thread PWM驱动函数


    GD32 PWM驱动函数

    驱动函数包含三个文件,drv_pwm.c、drv_pwm.h、pwm_config.h,使用RT_USING_PWM进行开启关闭,移植注意事项参见 移植完整版RT-Thread到GD32F4XX(详细) 中关于pwm移植相关内容,移植完成后使用及验证方法同stm32

    drv_pwm.c

    /**
        ******************************************************************************
        * @file    drv_pwm.c
        * @author  yangFei
        * @brief   按照GD32库实现pwm驱动
        *
        * @version V1.0.0
        * @date    2022.05.30
        * @verbatim
        *
        * @endverbatim
        ******************************************************************************
        * @note
        * @attention
        *
        * Change Logs:
        * Date           Author       Notes
        * 2022.05.30     yangFei      适用芯片为GD32f4xx,使用官方提供标准库,例程移植自https://github.com/RT-Thread/rt-   thread/tree/master/bsp/gd32/gd32407v-start
        *
        ******************************************************************************
        */
    #ifdef RT_USING_PWM
    #include <drivers/hwtimer.h>
    #include "drv_pwm.h"
    #include "pwm_config.h"
    
    //#define DRV_DEBUG
    #define LOG_TAG             "drv.pwm"
    #include <drv_log.h>
    
    #define MAX_PERIOD 65535
    #define MIN_PERIOD 3
    #define MIN_PULSE 2
    
    timer_oc_parameter_struct timer_ocintpara;
    
    enum
    {
    #ifdef BSP_USING_PWM1
        PWM1_INDEX,
    #endif
    #ifdef BSP_USING_PWM2
        PWM2_INDEX,
    #endif
    #ifdef BSP_USING_PWM3
        PWM3_INDEX,
    #endif
    #ifdef BSP_USING_PWM4
        PWM4_INDEX,
    #endif
    #ifdef BSP_USING_PWM5
        PWM5_INDEX,
    #endif
    #ifdef BSP_USING_PWM6
        PWM6_INDEX,
    #endif
    #ifdef BSP_USING_PWM7
        PWM7_INDEX,
    #endif
    #ifdef BSP_USING_PWM8
        PWM8_INDEX,
    #endif
    #ifdef BSP_USING_PWM9
        PWM9_INDEX,
    #endif
    #ifdef BSP_USING_PWM10
        PWM10_INDEX,
    #endif
    #ifdef BSP_USING_PWM11
        PWM11_INDEX,
    #endif
    #ifdef BSP_USING_PWM12
        PWM12_INDEX,
    #endif
    #ifdef BSP_USING_PWM13
        PWM13_INDEX,
    #endif
    #ifdef BSP_USING_PWM14
        PWM14_INDEX,
    #endif
    #ifdef BSP_USING_PWM15
        PWM15_INDEX,
    #endif
    #ifdef BSP_USING_PWM16
        PWM16_INDEX,
    #endif
    #ifdef BSP_USING_PWM17
        PWM17_INDEX,
    #endif
    };
    
    struct gd32_pwm
    {
        struct rt_device_pwm pwm_device;
        TIM_HandleTypeDef    tim_handle;
        rt_uint8_t channel;
        char *name;
    };
    
    static struct gd32_pwm gd32_pwm_obj[] =
    {
    #ifdef BSP_USING_PWM1
        PWM1_CONFIG,
    #endif
    
    #ifdef BSP_USING_PWM2
        PWM2_CONFIG,
    #endif
    
    #ifdef BSP_USING_PWM3
        PWM3_CONFIG,
    #endif
    
    #ifdef BSP_USING_PWM4
        PWM4_CONFIG,
    #endif
    
    #ifdef BSP_USING_PWM5
        PWM5_CONFIG,
    #endif
    
    #ifdef BSP_USING_PWM6
        PWM6_CONFIG,
    #endif
    
    #ifdef BSP_USING_PWM7
        PWM7_CONFIG,
    #endif
    
    #ifdef BSP_USING_PWM8
        PWM8_CONFIG,
    #endif
    
    #ifdef BSP_USING_PWM9
        PWM9_CONFIG,
    #endif
    
    #ifdef BSP_USING_PWM10
        PWM10_CONFIG,
    #endif
    
    #ifdef BSP_USING_PWM11
        PWM11_CONFIG,
    #endif
    
    #ifdef BSP_USING_PWM12
        PWM12_CONFIG,
    #endif
    
    #ifdef BSP_USING_PWM13
        PWM13_CONFIG,
    #endif
    
    #ifdef BSP_USING_PWM14
        PWM14_CONFIG,
    #endif
    
    #ifdef BSP_USING_PWM15
        PWM15_CONFIG,
    #endif
    
    #ifdef BSP_USING_PWM16
        PWM16_CONFIG,
    #endif
    
    #ifdef BSP_USING_PWM17
        PWM17_CONFIG,
    #endif
    };
    
    void GD32_TIM_MspPostInit(TIM_HandleTypeDef* htim)
    {
      if(htim->Instance == TIMER2)
      {
      /* USER CODE END TIM2_MspPostInit 0 */
        rcu_periph_clock_enable(RCU_GPIOC);
        /**TIM2 GPIO Configuration
        PC6     ------> TIM2_CH0
        PC7     ------> TIM2_CH1
        PC8     ------> TIM2_CH2
        PC9     ------> TIM2_CH3
        */
        gpio_mode_set(GPIOC, GPIO_MODE_AF, GPIO_PUPD_NONE, GPIO_PIN_6);
        gpio_output_options_set(GPIOC, GPIO_OTYPE_PP, GPIO_OSPEED_50MHZ, GPIO_PIN_6);
    		
    		gpio_mode_set(GPIOC, GPIO_MODE_AF, GPIO_PUPD_NONE, GPIO_PIN_7);
        gpio_output_options_set(GPIOC, GPIO_OTYPE_PP, GPIO_OSPEED_50MHZ, GPIO_PIN_7);
    		
    		gpio_mode_set(GPIOC, GPIO_MODE_AF, GPIO_PUPD_NONE, GPIO_PIN_8);
        gpio_output_options_set(GPIOC, GPIO_OTYPE_PP, GPIO_OSPEED_50MHZ, GPIO_PIN_8);
    		
    		gpio_mode_set(GPIOC, GPIO_MODE_AF, GPIO_PUPD_NONE, GPIO_PIN_9);
        gpio_output_options_set(GPIOC, GPIO_OTYPE_PP, GPIO_OSPEED_50MHZ, GPIO_PIN_9);
    		
    		gpio_af_set(GPIOC, GPIO_AF_2, GPIO_PIN_6);
        gpio_af_set(GPIOC, GPIO_AF_2, GPIO_PIN_7);
        gpio_af_set(GPIOC, GPIO_AF_2, GPIO_PIN_8);
    		gpio_af_set(GPIOC, GPIO_AF_2, GPIO_PIN_9);
    
      }
      else if(htim->Instance == TIMER3)
      {
      /* USER CODE BEGIN TIM3_MspPostInit 0 */
    
        __HAL_RCC_GPIOB_CLK_ENABLE();
        /**TIM3 GPIO Configuration
        PB9     ------> TIM3_CH3
        */
        gpio_mode_set(GPIOB, GPIO_MODE_AF, GPIO_PUPD_NONE, GPIO_PIN_9);
        gpio_output_options_set(GPIOB, GPIO_OTYPE_PP, GPIO_OSPEED_50MHZ, GPIO_PIN_9);
    		
    		gpio_af_set(GPIOB, GPIO_AF_2, GPIO_PIN_9);
      }
    	else
    	{
    		LOG_E("%d timer-pwm pin config failed", htim->Instance);
    	}
    
    }
    
    
    static rt_err_t drv_pwm_control(struct rt_device_pwm *device, int cmd, void *arg);
    static struct rt_pwm_ops drv_ops =
    {
        drv_pwm_control
    };
    
    static rt_err_t drv_pwm_enable(TIM_HandleTypeDef *htim, struct rt_pwm_configuration *configuration, rt_bool_t enable)
    {
    	  uint32_t timer_periph = htim->Instance;
    	  uint16_t channel = htim->Channel;
    	
        if (!enable)
        {
    			  timer_ocintpara.outputstate = TIMER_CCX_DISABLE;
            timer_channel_output_config(timer_periph, channel, &timer_ocintpara);
        }
        else
        {
    			  timer_ocintpara.outputstate = TIMER_CCX_ENABLE;
            timer_channel_output_config(timer_periph, channel, &timer_ocintpara);
        }
    		
    
        return RT_EOK;
    }
    
    static rt_err_t drv_pwm_get(TIM_HandleTypeDef *htim, struct rt_pwm_configuration *configuration)
    {
        uint32_t channel = htim->Channel;
        rt_uint64_t tim_clock;
    	  uint32_t timer_periph = htim->Instance;
    	  uint32_t pulse = 0;
    
    
        if((timer_periph == TIMER0) || (timer_periph == TIMER7) || (timer_periph == TIMER8) || (timer_periph == TIMER9) || (timer_periph == TIMER10))
    		{
    			tim_clock = rcu_clock_freq_get(CK_APB2);
    		}
    		else
    		{
    			tim_clock = rcu_clock_freq_get(CK_APB1);
    		}
    
        if (((uint16_t)TIMER_CTL0(timer_periph) & TIMER_CKDIV_DIV2) == CTL0_CKDIV(3))
        {
            tim_clock = tim_clock / 2;
        }
        else if (((uint16_t)TIMER_CTL0(timer_periph) & TIMER_CKDIV_DIV4) == CTL0_CKDIV(3))
        {
            tim_clock = tim_clock / 4;
        }
    
        /* Convert nanosecond to frequency and duty cycle. 1s = 1 * 1000 * 1000 * 1000 ns */
        tim_clock /= 1000000UL;
        configuration->period = ((uint32_t)TIMER_CAR(timer_periph) + 1) * ((uint16_t)TIMER_PSC(timer_periph) + 1) * 1000UL / tim_clock;  
    		
    		switch(channel){
        /* configure TIMER_CH_0 */
        case TIMER_CH_0:
            pulse = (uint32_t)TIMER_CH0CV(timer_periph);
            break;
        /* configure TIMER_CH_1 */
        case TIMER_CH_1:
            pulse = (uint32_t)TIMER_CH1CV(timer_periph);
            break;
        /* configure TIMER_CH_2 */
        case TIMER_CH_2:
            pulse = (uint32_t)TIMER_CH2CV(timer_periph);
            break;
        /* configure TIMER_CH_3 */
        case TIMER_CH_3:
             pulse = (uint32_t)TIMER_CH3CV(timer_periph);
            break;
        default:
            break;
        }
        configuration->pulse = (pulse + 1) * ((uint16_t)TIMER_PSC(timer_periph) + 1) * 1000UL / tim_clock;
    
        return RT_EOK;
    }
    
    static rt_err_t drv_pwm_set(TIM_HandleTypeDef *htim, struct rt_pwm_configuration *configuration)
    {
        rt_uint32_t period, pulse;
        rt_uint64_t tim_clock, psc;
        rt_uint32_t channel = configuration->channel;
    	  uint32_t timer_periph = htim->Instance;
    
    	  timer_disable(timer_periph);
    	
    	  if((timer_periph == TIMER0) || (timer_periph == TIMER7) || (timer_periph == TIMER8) || (timer_periph == TIMER9) || (timer_periph == TIMER10))
    		{
    			tim_clock = rcu_clock_freq_get(CK_APB2);
    		}
    		else
    		{
    			tim_clock = rcu_clock_freq_get(CK_APB1);
    		}
    		
        /* Convert nanosecond to frequency and duty cycle. 1s = 1 * 1000 * 1000 * 1000 ns */
        tim_clock /= 1000000UL;
        period = (unsigned long long)configuration->period * tim_clock / 1000ULL ;
        psc = period / MAX_PERIOD + 1;
        period = period / psc;
    
        if (period < MIN_PERIOD)
        {
            period = MIN_PERIOD;
        }
    		
    		htim->Init.prescaler = (psc*4 - 1);
    		htim->Init.period = (period - 1);
    		timer_init(timer_periph, &htim->Init);
    		
    
        pulse = (unsigned long long)configuration->pulse * tim_clock / psc / 1000ULL;
        if (pulse < MIN_PULSE)
        {
            pulse = MIN_PULSE;
        }
        else if (pulse > period)
        {
            pulse = period;
        }
    		timer_channel_output_pulse_value_config(timer_periph, channel, (pulse - 1));
    		timer_channel_output_mode_config(timer_periph, channel, TIMER_OC_MODE_PWM0);
        timer_channel_output_shadow_config(timer_periph, channel, TIMER_OC_SHADOW_DISABLE);
    
        timer_counter_value_config(timer_periph, 0);
    
        /* Update frequency value */
    
    		/* auto-reload preload enable */
        timer_auto_reload_shadow_enable(timer_periph);
        /* auto-reload preload enable */
        timer_enable(timer_periph);
        return RT_EOK;
    }
    
    static rt_err_t drv_pwm_control(struct rt_device_pwm *device, int cmd, void *arg)
    {
        struct rt_pwm_configuration *configuration = (struct rt_pwm_configuration *)arg;
        TIM_HandleTypeDef *htim = (TIM_HandleTypeDef *)device->parent.user_data;
    
        switch (cmd)
        {
        case PWM_CMD_ENABLE:
            return drv_pwm_enable(htim, configuration, RT_TRUE);
        case PWM_CMD_DISABLE:
            return drv_pwm_enable(htim, configuration, RT_FALSE);
        case PWM_CMD_SET:
            return drv_pwm_set(htim, configuration);
        case PWM_CMD_GET:
            return drv_pwm_get(htim, configuration);
        default:
            return RT_EINVAL;
        }
    }
    
    static rt_err_t gd32_hw_pwm_init(struct gd32_pwm *device)
    {
        rt_err_t result = RT_EOK;
        TIM_HandleTypeDef *tim = RT_NULL;
    
        RT_ASSERT(device != RT_NULL);
    	
        tim = (TIM_HandleTypeDef *)&device->tim_handle;
    
    	  /* pwm pin configuration */
        GD32_TIM_MspPostInit(tim);
    	
    	  switch(tim->Instance){
        case TIMER0:
            rcu_periph_clock_enable(RCU_TIMER0);
            break;
    
        case TIMER1:
            rcu_periph_clock_enable(RCU_TIMER1);
            break;
    
        case TIMER2:
            rcu_periph_clock_enable(RCU_TIMER2);
            break;
    
        case TIMER3:
            rcu_periph_clock_enable(RCU_TIMER3);
            break;
    		
    		case TIMER4:
    				rcu_periph_clock_enable(RCU_TIMER4);
    		break;
    
        case TIMER5:
            rcu_periph_clock_enable(RCU_TIMER5);
            break;
    
        case TIMER6:
            rcu_periph_clock_enable(RCU_TIMER6);
            break;
    
        case TIMER7:
            rcu_periph_clock_enable(RCU_TIMER7);
            break;
    		
    		case TIMER8:
    				rcu_periph_clock_enable(RCU_TIMER8);
    		break;
    
        case TIMER9:
            rcu_periph_clock_enable(RCU_TIMER9);
            break;
    
        case TIMER10:
            rcu_periph_clock_enable(RCU_TIMER10);
            break;
    
        case TIMER11:
            rcu_periph_clock_enable(RCU_TIMER11);
            break;
    		
    		case TIMER12:
            rcu_periph_clock_enable(RCU_TIMER12);
            break;
    		
    		case TIMER13:
            rcu_periph_clock_enable(RCU_TIMER13);
            break;
        default:
            break;
        }
    		
        rcu_timer_clock_prescaler_config(RCU_TIMER_PSC_MUL4);
    		
    	timer_deinit(tim->Instance);
    		
        /* configure the timer to pwm mode */
        tim->Init.prescaler = 0;
        tim->Init.counterdirection = TIMER_COUNTER_UP;
        tim->Init.period = 0;
        tim->Init.clockdivision = TIMER_CKDIV_DIV4;
        tim->Init.repetitioncounter = 0;
    	tim->Init.alignedmode = TIMER_COUNTER_EDGE;
    
        timer_init(tim->Instance, &tim->Init);
    
    		
    	timer_ocintpara.ocpolarity  = TIMER_OC_POLARITY_HIGH;
        timer_ocintpara.outputstate = TIMER_CCX_ENABLE;
        timer_ocintpara.ocnpolarity  = TIMER_OCN_POLARITY_HIGH;
        timer_ocintpara.outputnstate = TIMER_CCXN_DISABLE;
        timer_ocintpara.ocidlestate  = TIMER_OC_IDLE_STATE_LOW;
        timer_ocintpara.ocnidlestate = TIMER_OCN_IDLE_STATE_LOW;
    		
        /* config pwm channel */
    	if (device->channel & 0x01)
        {
            timer_channel_output_config(tim->Instance, TIMER_CH_0, &timer_ocintpara);
        }
    		
    	if (device->channel & 0x02)
        {
            timer_channel_output_config(tim->Instance, TIMER_CH_1, &timer_ocintpara);
        }
    		
    	if (device->channel & 0x04)
        {
            timer_channel_output_config(tim->Instance, TIMER_CH_2, &timer_ocintpara);
        }
    		
    	if (device->channel & 0x08)
        {
            timer_channel_output_config(tim->Instance, TIMER_CH_3, &timer_ocintpara);
        }
    		
    
    //		timer_channel_output_pulse_value_config(TIMER3,TIMER_CH_3,3999);
    	timer_channel_output_mode_config(tim->Instance, device->channel, TIMER_OC_MODE_PWM0);
        timer_channel_output_shadow_config(tim->Instance, device->channel, TIMER_OC_SHADOW_DISABLE);
    		
        /* auto-reload preload enable */
        timer_auto_reload_shadow_enable(tim->Instance);
        /* auto-reload preload enable */
        timer_enable(tim->Instance);
    
    __exit:
        return result;
    }
    
    static void pwm_get_channel(void)
    {
    #ifdef BSP_USING_PWM0_CH0
        gd32_pwm_obj[PWM0_INDEX].channel |= 1 << 0;
    #endif
    #ifdef BSP_USING_PWM0_CH1
        gd32_pwm_obj[PWM0_INDEX].channel |= 1 << 1;
    #endif
    #ifdef BSP_USING_PWM0_CH2
        gd32_pwm_obj[PWM0_INDEX].channel |= 1 << 2;
    #endif
    #ifdef BSP_USING_PWM0_CH3
        gd32_pwm_obj[PWM0_INDEX].channel |= 1 << 3;
    #endif
    #ifdef BSP_USING_PWM1_CH0
        gd32_pwm_obj[PWM1_INDEX].channel |= 1 << 0;
    #endif
    #ifdef BSP_USING_PWM1_CH1
        gd32_pwm_obj[PWM1_INDEX].channel |= 1 << 1;
    #endif
    #ifdef BSP_USING_PWM1_CH2
        gd32_pwm_obj[PWM1_INDEX].channel |= 1 << 2;
    #endif
    #ifdef BSP_USING_PWM1_CH3
        gd32_pwm_obj[PWM1_INDEX].channel |= 1 << 3;
    #endif
    #ifdef BSP_USING_PWM2_CH0
        gd32_pwm_obj[PWM2_INDEX].channel |= 1 << 0;
    #endif
    #ifdef BSP_USING_PWM2_CH1
        gd32_pwm_obj[PWM2_INDEX].channel |= 1 << 1;
    #endif
    #ifdef BSP_USING_PWM2_CH2
        gd32_pwm_obj[PWM2_INDEX].channel |= 1 << 2;
    #endif
    #ifdef BSP_USING_PWM2_CH3
        gd32_pwm_obj[PWM2_INDEX].channel |= 1 << 3;
    #endif
    #ifdef BSP_USING_PWM3_CH0
        gd32_pwm_obj[PWM3_INDEX].channel |= 1 << 0;
    #endif
    #ifdef BSP_USING_PWM3_CH1
        gd32_pwm_obj[PWM3_INDEX].channel |= 1 << 1;
    #endif
    #ifdef BSP_USING_PWM3_CH2
        gd32_pwm_obj[PWM3_INDEX].channel |= 1 << 2;
    #endif
    #ifdef BSP_USING_PWM3_CH3
        gd32_pwm_obj[PWM3_INDEX].channel |= 1 << 3;
    #endif
    #ifdef BSP_USING_PWM4_CH0
        gd32_pwm_obj[PWM4_INDEX].channel |= 1 << 0;
    #endif
    #ifdef BSP_USING_PWM4_CH1
        gd32_pwm_obj[PWM4_INDEX].channel |= 1 << 1;
    #endif
    #ifdef BSP_USING_PWM4_CH2
        gd32_pwm_obj[PWM4_INDEX].channel |= 1 << 2;
    #endif
    #ifdef BSP_USING_PWM4_CH3
        gd32_pwm_obj[PWM4_INDEX].channel |= 1 << 3;
    #endif
    #ifdef BSP_USING_PWM5_CH0
        gd32_pwm_obj[PWM5_INDEX].channel |= 1 << 0;
    #endif
    #ifdef BSP_USING_PWM5_CH1
        gd32_pwm_obj[PWM5_INDEX].channel |= 1 << 1;
    #endif
    #ifdef BSP_USING_PWM5_CH2
        gd32_pwm_obj[PWM5_INDEX].channel |= 1 << 2;
    #endif
    #ifdef BSP_USING_PWM5_CH3
        gd32_pwm_obj[PWM5_INDEX].channel |= 1 << 3;
    #endif
    #ifdef BSP_USING_PWM6_CH0
        gd32_pwm_obj[PWM6_INDEX].channel |= 1 << 0;
    #endif
    #ifdef BSP_USING_PWM6_CH1
        gd32_pwm_obj[PWM6_INDEX].channel |= 1 << 1;
    #endif
    #ifdef BSP_USING_PWM6_CH2
        gd32_pwm_obj[PWM6_INDEX].channel |= 1 << 2;
    #endif
    #ifdef BSP_USING_PWM6_CH3
        gd32_pwm_obj[PWM6_INDEX].channel |= 1 << 3;
    #endif
    #ifdef BSP_USING_PWM7_CH0
        gd32_pwm_obj[PWM7_INDEX].channel |= 1 << 0;
    #endif
    #ifdef BSP_USING_PWM7_CH1
        gd32_pwm_obj[PWM7_INDEX].channel |= 1 << 1;
    #endif
    #ifdef BSP_USING_PWM7_CH2
        gd32_pwm_obj[PWM7_INDEX].channel |= 1 << 2;
    #endif
    #ifdef BSP_USING_PWM7_CH3
        gd32_pwm_obj[PWM7_INDEX].channel |= 1 << 3;
    #endif
    #ifdef BSP_USING_PWM8_CH0
        gd32_pwm_obj[PWM8_INDEX].channel |= 1 << 0;
    #endif
    #ifdef BSP_USING_PWM8_CH1
        gd32_pwm_obj[PWM8_INDEX].channel |= 1 << 1;
    #endif
    #ifdef BSP_USING_PWM8_CH2
        gd32_pwm_obj[PWM8_INDEX].channel |= 1 << 2;
    #endif
    #ifdef BSP_USING_PWM8_CH3
        gd32_pwm_obj[PWM8_INDEX].channel |= 1 << 3;
    #endif
    #ifdef BSP_USING_PWM9_CH0
        gd32_pwm_obj[PWM9_INDEX].channel |= 1 << 0;
    #endif
    #ifdef BSP_USING_PWM9_CH1
        gd32_pwm_obj[PWM9_INDEX].channel |= 1 << 1;
    #endif
    #ifdef BSP_USING_PWM9_CH2
        gd32_pwm_obj[PWM9_INDEX].channel |= 1 << 2;
    #endif
    #ifdef BSP_USING_PWM9_CH3
        gd32_pwm_obj[PWM9_INDEX].channel |= 1 << 3;
    #endif
    #ifdef BSP_USING_PWM12_CH0
        gd32_pwm_obj[PWM12_INDEX].channel |= 1 << 0;
    #endif
    #ifdef BSP_USING_PWM12_CH1
        gd32_pwm_obj[PWM12_INDEX].channel |= 1 << 1;
    #endif
    }
    
    static int gd32_pwm_init(void)
    {
        int i = 0;
        int result = RT_EOK;
    
        pwm_get_channel();
    
        for (i = 0; i < sizeof(gd32_pwm_obj) / sizeof(gd32_pwm_obj[0]); i++)
        {
            /* pwm init */
            if (gd32_hw_pwm_init(&gd32_pwm_obj[i]) != RT_EOK)
            {
                LOG_E("%s init failed", gd32_pwm_obj[i].name);
                result = -RT_ERROR;
                goto __exit;
            }
            else
            {
                LOG_D("%s init success", gd32_pwm_obj[i].name);
    
                /* register pwm device */
                if (rt_device_pwm_register(&gd32_pwm_obj[i].pwm_device, gd32_pwm_obj[i].name, &drv_ops, &gd32_pwm_obj[i].tim_handle) == RT_EOK)
                {
                    LOG_D("%s register success", gd32_pwm_obj[i].name);
                }
                else
                {
                    LOG_E("%s register failed", gd32_pwm_obj[i].name);
                    result = -RT_ERROR;
                }
            }
        }
    
    __exit:
        return result;
    }
    INIT_DEVICE_EXPORT(gd32_pwm_init);
    
    #endif /* RT_USING_PWM */
    
    /************************ (C) COPYRIGHT  *****END OF FILE****/
    
    
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    drv_pwm.h

    /**
        ******************************************************************************
        * @file    drv_pwm.h
        * @author  yangFei
        * @brief   存放hal库中关于pwm相关的定义
        *
        * @version V1.0.0
        * @date    2022.05.30
        * @verbatim
        *
        * @endverbatim
        ******************************************************************************
        * @note
        * @attention
        *
        * Change Logs:
        * Date           Author       Notes
        * 2022.05.30     yangFei
        *
        ******************************************************************************
        */
    #ifndef _DRV_PWM_H 
    #define _DRV_PWM_H 
    
    #include "gd32f4xx_timer.h"
    
    
    /**
      * @brief  HAL State structures definition
      */
    typedef enum
    {
      HAL_TIM_STATE_RESET             = 0x00U,    /*!< Peripheral not yet initialized or disabled  */
      HAL_TIM_STATE_READY             = 0x01U,    /*!< Peripheral Initialized and ready for use    */
      HAL_TIM_STATE_BUSY              = 0x02U,    /*!< An internal process is ongoing              */
      HAL_TIM_STATE_TIMEOUT           = 0x03U,    /*!< Timeout state                               */
      HAL_TIM_STATE_ERROR             = 0x04U     /*!< Reception process is ongoing                */
    } HAL_TIM_StateTypeDef;
    
    /**
      * @brief  HAL Active channel structures definition
      */
    typedef enum
    {
      HAL_TIM_ACTIVE_CHANNEL_0        = TIMER_CH_0,    /*!< The active channel is 0     */
      HAL_TIM_ACTIVE_CHANNEL_1        = TIMER_CH_1,    /*!< The active channel is 1     */
      HAL_TIM_ACTIVE_CHANNEL_2        = TIMER_CH_2,    /*!< The active channel is 2     */
      HAL_TIM_ACTIVE_CHANNEL_3        = TIMER_CH_3    /*!< The active channel is 3     */
    } HAL_TIM_ActiveChannel;
    
    /**
      * @brief  TIM Time Base Handle Structure definition
      */
    typedef struct
    {
      uint32_t                     Instance;     /*!< Register base address             */
      timer_parameter_struct        Init;          /*!< TIM Time Base required parameters */
      HAL_TIM_ActiveChannel       Channel;       /*!< Active channel                    */
    //  DMA_HandleTypeDef           *hdma[7];      /*!< DMA Handlers array
    //                                                  This array is accessed by a @ref DMA_Handle_index */
      HAL_LockTypeDef             Lock;          /*!< Locking object                    */
      __IO HAL_TIM_StateTypeDef   State;         /*!< TIM operation state               */
    	
    } TIM_HandleTypeDef;
    
    #endif /* _DRV_PWM_H */
    
    /************************ (C) COPYRIGHT  *****END OF FILE****/
    
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    pwm_config.h

    /*
     * Copyright (c) 2006-2018, RT-Thread Development Team
     *
     * SPDX-License-Identifier: Apache-2.0
     *
     * Change Logs:
     * Date           Author       Notes
     * 2018-12-13     zylx         first version
     */
    
    #ifndef __PWM_CONFIG_H__
    #define __PWM_CONFIG_H__
    
    #include <rtthread.h>
    
    #ifdef __cplusplus
    extern "C" {
    #endif
    
    #ifdef BSP_USING_PWM0
    #ifndef PWM0_CONFIG
    #define PWM0_CONFIG                             \
        {                                           \
           .tim_handle.Instance     = TIMER0,         \
           .name                    = "pwm0",       \
           .channel                 = 0             \
        }
    #endif /* PWM1_CONFIG */
    #endif /* BSP_USING_PWM1 */
    
    #ifdef BSP_USING_PWM1
    #ifndef PWM1_CONFIG
    #define PWM1_CONFIG                             \
        {                                           \
           .tim_handle.Instance     = TIMER1,         \
           .name                    = "pwm1",       \
           .channel                 = 0             \
        }
    #endif /* PWM1_CONFIG */
    #endif /* BSP_USING_PWM1 */
    
    #ifdef BSP_USING_PWM2
    #ifndef PWM2_CONFIG
    #define PWM2_CONFIG                             \
        {                                           \
           .tim_handle.Instance     = TIMER2,         \
           .name                    = "pwm2",       \
           .channel                 = 0             \
        }
    #endif /* PWM2_CONFIG */
    #endif /* BSP_USING_PWM2 */
    
    #ifdef BSP_USING_PWM3
    #ifndef PWM3_CONFIG
    #define PWM3_CONFIG                             \
        {                                           \
           .tim_handle.Instance     = TIMER3,         \
           .name                    = "pwm3",       \
           .channel                 = 0             \
        }
    #endif /* PWM3_CONFIG */
    #endif /* BSP_USING_PWM3 */
    
    #ifdef BSP_USING_PWM4
    #ifndef PWM4_CONFIG
    #define PWM4_CONFIG                             \
        {                                           \
           .tim_handle.Instance     = TIMER4,         \
           .name                    = "pwm4",       \
           .channel                 = 0             \
        }
    #endif /* PWM4_CONFIG */
    #endif /* BSP_USING_PWM4 */
    
    #ifdef BSP_USING_PWM5
    #ifndef PWM5_CONFIG
    #define PWM5_CONFIG                             \
        {                                           \
           .tim_handle.Instance     = TIMER5,         \
           .name                    = "pwm5",       \
           .channel                 = 0             \
        }
    #endif /* PWM5_CONFIG */
    #endif /* BSP_USING_PWM5 */
    
    #ifdef __cplusplus
    }
    #endif
    
    #endif /* __PWM_CONFIG_H__ */
    
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  • 原文地址:https://blog.csdn.net/Fei_Yang_YF/article/details/125451517