I am experimenting with timers...
I have a list of time values that I want to use to replay a digital signal.
What I try to do is to wait for the interrupt of the base timer, then set a new
period value, then wait for the next interrupt.
But it seems I do something wrong.
Timer init
htim6.Instance = TIM6;
htim6.Init.Prescaler = 49;
htim6.Init.CounterMode = TIM_COUNTERMODE_UP;
htim6.Init.Period = 65530;
htim6.Init.AutoReloadPreload = TIM_AUTORELOAD_PRELOAD_ENABLE;
if (HAL_TIM_Base_Init(&htim6) != HAL_OK)
{
Error_Handler();
}
sMasterConfig.MasterOutputTrigger = TIM_TRGO_RESET;
sMasterConfig.MasterSlaveMode = TIM_MASTERSLAVEMODE_DISABLE;
if (HAL_TIMEx_MasterConfigSynchronization(&htim6, &sMasterConfig) != HAL_OK)
{
Error_Handler();
}
Timer interupt
if(htim->Instance == TIM6){
if(cmd == 1){
HAL_GPIO_TogglePin(IR_SND_GPIO_Port, IR_SND_Pin);
// tried without stop/start - did not change
HAL_TIM_Base_Stop_IT(&htim6);
__HAL_TIM_SET_AUTORELOAD(&htim6,vol_up[sq++]);
// did not do that - no change
__HAL_TIM_SET_COUNTER(&htim6,0);
HAL_TIM_Base_Start_IT(&htim6);
__NOP();
}
}
This works for the first value, but then I get interrupts at a more or less random pattern.
The values got up and down in my array (between 600 and 1600). I tried with and without Stop/Start and with/without __SETCOUNTER__ - no change as well.
Ideas are highly appreciated
