I found that when after calling HAL_TIM_PWM_DeInit() the power consumption of the device is higher than it was before HAL_TIM_PWM_Init() called. The few investigations lead me to the fact that I need to reset ARR register to default value to reduce the consumption. So I started with:
void HAL_TIM_PWM_MspDeInit(TIM_HandleTypeDef *htim)
{
htim->Instance->ARR = ~0;
}
And Ok, the sequence
HAL_TIM_PWM_Init(&htim);
HAL_TIM_PWM_DeInit(&htim);
now works. Can't get the same result with
HAL_TIM_PWM_Init(&htim);
HAL_TIM_PWM_ConfigChannel(&htim, &sConfig, TIM_CHANNEL_1);
HAL_TIM_PWM_DeInit(&htim);
I don't even Start and Stop for now to reduce side effects.
For now my HAL_TIM_PWM_MspDeInit() looks like this:
void HAL_TIM_PWM_MspDeInit(TIM_HandleTypeDef *htim)
{
htim->Instance->CCER = 0;
htim->Instance->PSC = 0;
htim->Instance->ARR = ~0;
htim->Instance->CCMR1 = 0;
htim->Instance->CCR1 = 0;
htim->Instance->CR1 = 0;
htim->Instance->CR2 = 0;
}
So I reset all the registers that previous calls affected but the power consumption still high. Either something prevent device from sleeping or timer module still consume lot of power in sleep. I need to solve it somehow, but run out of ideas.
