[STM32 BSP]Fix PWM channel calculate argorithm.
@@ -38,18 +38,21 @@ static struct rt_pwm_ops drv_ops =
static rt_err_t drv_pwm_enable(TIM_HandleTypeDef * htim, struct rt_pwm_configuration *configuration, rt_bool_t enable)
{
- rt_uint32_t channel = 0x04 * configuration->channel;
+ rt_uint32_t channel = 0x04 * (configuration->channel - 1);
if(!enable)
{
HAL_TIM_PWM_Stop(htim, channel);
}
+ else
+ {
HAL_TIM_PWM_Start(htim, channel);
+ }
return RT_EOK;
}
static rt_err_t drv_pwm_get(TIM_HandleTypeDef * htim, struct rt_pwm_configuration *configuration)
{
- rt_uint32_t channel = 0x04 * configuration->channel;
+ rt_uint32_t channel = 0x04 * (configuration->channel - 1);
rt_uint32_t tim_clock;
#if (RT_HSE_HCLK > 100000000UL)//100M
if(htim->Instance == TIM1 && htim->Instance == TIM8)
@@ -81,7 +84,7 @@ static rt_err_t drv_pwm_set(TIM_HandleTypeDef * htim, struct rt_pwm_configuratio
{
rt_uint32_t period, pulse;
rt_uint32_t tim_clock, psc;
- rt_uint32_t channel = 0x04 * configuration->channel;
+ rt_uint32_t channel = 0x04 * (configuration->channel - 1);
#if (RT_HSE_HCLK > 100000000UL)//100M
if(htim->Instance == TIM1 && htim->Instance == TIM8)
{
