RTthread 4.1 stm32h7 系列不支持pwm 求助驱动配置

发布于 2023-04-09 18:32:02 浏览：633 订阅该版

找问题找了很久，搜到了一个4.0.2版本pwm 没有支持STM32H7系列的帖子
现在是4.1 还是没有，求助大佬帮改个代码
报错信息
![screenshot_image.png](https://oss-club.rt-thread.org/uploads/20230409/e05c14124f78104de6e2ba7fa605b35b.png)
驱动程序里没有STM32H7的

```c
static rt_err_t drv_pwm_get(TIM_HandleTypeDef *htim, struct rt_pwm_configuration *configuration)
{
    /* Converts the channel number to the channel number of Hal library */
    rt_uint32_t channel = 0x04 * (configuration->channel - 1);
    rt_uint64_t tim_clock;

#if defined(SOC_SERIES_STM32F2) || defined(SOC_SERIES_STM32F4) || defined(SOC_SERIES_STM32F7)
    if (htim->Instance == TIM9 || htim->Instance == TIM10 || htim->Instance == TIM11)
#elif defined(SOC_SERIES_STM32L4)
    if (htim->Instance == TIM15 || htim->Instance == TIM16 || htim->Instance == TIM17)
#elif defined(SOC_SERIES_STM32F1) || defined(SOC_SERIES_STM32F0) || defined(SOC_SERIES_STM32G0)
    if (0)
#endif
    {
#if !defined(SOC_SERIES_STM32F0) && !defined(SOC_SERIES_STM32G0)
        tim_clock = HAL_RCC_GetPCLK2Freq() * 2;
#endif
    }
    else
    {
#if defined(SOC_SERIES_STM32L4) || defined(SOC_SERIES_STM32F0) || defined(SOC_SERIES_STM32G0)
        tim_clock = HAL_RCC_GetPCLK1Freq();
#else
        tim_clock = HAL_RCC_GetPCLK1Freq() * 2;
#endif
    }

if (__HAL_TIM_GET_CLOCKDIVISION(htim) == TIM_CLOCKDIVISION_DIV2)
    {
        tim_clock = tim_clock / 2;
    }
    else if (__HAL_TIM_GET_CLOCKDIVISION(htim) == TIM_CLOCKDIVISION_DIV4)
    {
        tim_clock = tim_clock / 4;
    }

/* Convert nanosecond to frequency and duty cycle. 1s = 1 * 1000 * 1000 * 1000 ns */
    tim_clock /= 1000000UL;
    configuration->period = (__HAL_TIM_GET_AUTORELOAD(htim) + 1) * (htim->Instance->PSC + 1) * 1000UL / tim_clock;
    configuration->pulse = (__HAL_TIM_GET_COMPARE(htim, channel) + 1) * (htim->Instance->PSC + 1) * 1000UL / tim_clock;

return RT_EOK;
}
```
以及另一个函数中也是else 报错
```c
static rt_err_t drv_pwm_set(TIM_HandleTypeDef *htim, struct rt_pwm_configuration *configuration)
```