//
// Boost_HW_SetInterrupts()
//
void Boost_HW_SetInterrupts(void)
{
//Desliga o HRTIM1 e ADC1 como fonte de interrupcao:
NVIC_DisableIRQ(HRTIM1_TIMB_IRQn);
NVIC_DisableIRQ(ADC1_2_IRQn);
//Aciona interupcao por reset (ela que sera o trigger para disparar
//a conversao A/D)
HRTIM_ITConfig(HRTIM1, 0x01, HRTIM_TIM_IT_RST, ENABLE);
//Aciona a interrupcao do ADC:
ADC_ITConfig(ADC1, ADC_IT_EOC,ENABLE);
}
//MOD_A: PA8 HRTIM1_CHA1
//MOD_B: PA9 HRTIM1_CHA2
void SMPS_config(){
HRTIM_OutputCfgTypeDef HRTIM_TIM_OutputStructure;
HRTIM_BaseInitTypeDef HRTIM_BaseInitStructure;
HRTIM_TimerInitTypeDef HRTIM_TimerInitStructure;
HRTIM_TimerCfgTypeDef HRTIM_TimerWaveStructure;
HRTIM_CompareCfgTypeDef HRTIM_CompareStructure;
HRTIM_DeadTimeCfgTypeDef HRTIM_TIM_DeadTimeStructure;
HRTIM_ADCTriggerCfgTypeDef HRTIM_ADCTrigStructure;
NVIC_InitTypeDef NVIC_InitStructure;
/* --------------------------------------------------- */
/* TIMERA initialization: timer mode and PWM frequency */
/* --------------------------------------------------- */
//intilize timer
HRTIM_TimerInitStructure.HalfModeEnable = HRTIM_HALFMODE_DISABLED;
HRTIM_TimerInitStructure.StartOnSync = HRTIM_SYNCSTART_DISABLED;
HRTIM_TimerInitStructure.ResetOnSync = HRTIM_SYNCRESET_DISABLED;
HRTIM_TimerInitStructure.DACSynchro = HRTIM_DACSYNC_NONE;
HRTIM_TimerInitStructure.PreloadEnable = HRTIM_PRELOAD_ENABLED;
HRTIM_TimerInitStructure.UpdateGating = HRTIM_UPDATEGATING_INDEPENDENT;
HRTIM_TimerInitStructure.BurstMode = HRTIM_TIMERBURSTMODE_MAINTAINCLOCK;
HRTIM_TimerInitStructure.RepetitionUpdate = HRTIM_UPDATEONREPETITION_ENABLED;
//sets counter for timer
HRTIM_BaseInitStructure.Period = BUCK_PWM_PERIOD; /* 400kHz switching frequency */
HRTIM_BaseInitStructure.RepetitionCounter = MOD_UPDATE_RATE; /* ISR rate */
HRTIM_BaseInitStructure.PrescalerRatio = HRTIM_PRESCALERRATIO_MUL32;
HRTIM_BaseInitStructure.Mode = HRTIM_MODE_CONTINOUS;
HRTIM_Waveform_Init(HRTIM1, HRTIM_TIMERINDEX_TIMER_A, &HRTIM_BaseInitStructure, &HRTIM_TimerInitStructure);
/* ------------------------------------------------ */
/* TIMERA output and registers update configuration */
/* ------------------------------------------------ */
//sets more timer things
HRTIM_TimerWaveStructure.DeadTimeInsertion = HRTIM_TIMDEADTIMEINSERTION_ENABLED;
HRTIM_TimerWaveStructure.DelayedProtectionMode = HRTIM_TIMDELAYEDPROTECTION_DISABLED;
HRTIM_TimerWaveStructure.FaultEnable = HRTIM_TIMFAULTENABLE_NONE;//no stopping this
HRTIM_TimerWaveStructure.FaultLock = HRTIM_TIMFAULTLOCK_READWRITE;
HRTIM_TimerWaveStructure.PushPull = HRTIM_TIMPUSHPULLMODE_DISABLED;
HRTIM_TimerWaveStructure.ResetTrigger = HRTIM_TIMRESETTRIGGER_NONE;
HRTIM_TimerWaveStructure.ResetUpdate = HRTIM_TIMUPDATEONRESET_DISABLED;
HRTIM_TimerWaveStructure.UpdateTrigger = HRTIM_TIMUPDATETRIGGER_NONE;
HRTIM_WaveformTimerConfig(HRTIM1, HRTIM_TIMERINDEX_TIMER_A, &HRTIM_TimerWaveStructure);
/* -------------------------------- */
/* TA1 and TA2 waveform description */
/* -------------------------------- */
/* PWM on TA1 */
//set up outputs TA1 and TA2
HRTIM_TIM_OutputStructure.Polarity = HRTIM_OUTPUTPOLARITY_HIGH;
HRTIM_TIM_OutputStructure.SetSource = HRTIM_OUTPUTSET_TIMPER;
HRTIM_TIM_OutputStructure.ResetSource = HRTIM_OUTPUTRESET_TIMCMP1;
HRTIM_TIM_OutputStructure.IdleMode = HRTIM_OUTPUTIDLEMODE_NONE;
HRTIM_TIM_OutputStructure.IdleState = HRTIM_OUTPUTIDLESTATE_INACTIVE;
HRTIM_TIM_OutputStructure.FaultState = HRTIM_OUTPUTFAULTSTATE_INACTIVE;
HRTIM_TIM_OutputStructure.ChopperModeEnable = HRTIM_OUTPUTCHOPPERMODE_DISABLED;
HRTIM_TIM_OutputStructure.BurstModeEntryDelayed = HRTIM_OUTPUTBURSTMODEENTRY_REGULAR;
HRTIM_WaveformOutputConfig(HRTIM1, HRTIM_TIMERINDEX_TIMER_A, HRTIM_OUTPUT_TA1, &HRTIM_TIM_OutputStructure);
HRTIM_WaveformOutputConfig(HRTIM1, HRTIM_TIMERINDEX_TIMER_A, HRTIM_OUTPUT_TA2, &HRTIM_TIM_OutputStructure);
/* Set compare registers for duty cycle on TA1 */
//this sets the compare for the switching of TA1/TA2
HRTIM_CompareStructure.AutoDelayedMode = HRTIM_AUTODELAYEDMODE_REGULAR;
HRTIM_CompareStructure.AutoDelayedTimeout = 0;
HRTIM_CompareStructure.CompareValue = BUCK_PWM_PERIOD/5; //starting value
HRTIM_WaveformCompareConfig(HRTIM1, HRTIM_TIMERINDEX_TIMER_A, HRTIM_COMPAREUNIT_1, &HRTIM_CompareStructure);
//this sets up the deadtime value
HRTIM_TIM_DeadTimeStructure.FallingLock = HRTIM_TIMDEADTIME_FALLINGLOCK_WRITE;
HRTIM_TIM_DeadTimeStructure.FallingSign = HRTIM_TIMDEADTIME_FALLINGSIGN_POSITIVE;
HRTIM_TIM_DeadTimeStructure.FallingSignLock = HRTIM_TIMDEADTIME_FALLINGSIGNLOCK_WRITE;
HRTIM_TIM_DeadTimeStructure.FallingValue = DT_FALLING;
HRTIM_TIM_DeadTimeStructure.Prescaler = 0x0;
HRTIM_TIM_DeadTimeStructure.RisingLock = HRTIM_TIMDEADTIME_RISINGLOCK_WRITE;
HRTIM_TIM_DeadTimeStructure.RisingSign = HRTIM_TIMDEADTIME_RISINGSIGN_POSITIVE;
HRTIM_TIM_DeadTimeStructure.RisingSignLock = HRTIM_TIMDEADTIME_RISINGSIGNLOCK_WRITE;
HRTIM_TIM_DeadTimeStructure.RisingValue = DT_RISING;
HRTIM_DeadTimeConfig(HRTIM1, HRTIM_TIMERINDEX_TIMER_A, &HRTIM_TIM_DeadTimeStructure);
/* --------------------------*/
/* ADC trigger initialization */
/* --------------------------*/
/* Set compare 2 registers for ADC trigger */
HRTIM_CompareStructure.AutoDelayedMode = HRTIM_AUTODELAYEDMODE_REGULAR;
HRTIM_CompareStructure.AutoDelayedTimeout = 0;
HRTIM_CompareStructure.CompareValue = BUCK_PWM_PERIOD/10; //samples in middle of duty cycle
HRTIM_WaveformCompareConfig(HRTIM1, HRTIM_TIMERINDEX_TIMER_A, HRTIM_COMPAREUNIT_2, &HRTIM_CompareStructure);
HRTIM_ADCTrigStructure.Trigger = HRTIM_ADCTRIGGEREVENT24_TIMERA_CMP2;
HRTIM_ADCTrigStructure.UpdateSource = HRTIM_ADCTRIGGERUPDATE_TIMER_A; //this was D in example, switched to A?
HRTIM_ADCTriggerConfig(HRTIM1, HRTIM_ADCTRIGGER_2, &HRTIM_ADCTrigStructure);
/* */
/* -------------------------*/
/* Interrupt initialization */
/* -------------------------*/
/* Configure and enable HRTIM TIMERA interrupt channel in NVIC */
NVIC_InitStructure.NVIC_IRQChannel = HRTIM1_TIMA_IRQn;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
/* TIMER A issues an interrupt on each repetition event */
HRTIM_ITConfig(HRTIM1, HRTIM_TIMERINDEX_TIMER_A, HRTIM_TIM_IT_REP, ENABLE);
/* ---------------*/
/* HRTIM start-up */
/* ---------------*/
/* Enable HRTIM's outputs TA1 and TA2 */
/* Note: it is necessary to enable also GPIOs to have outputs functional */
HRTIM_WaveformOutputStart(HRTIM1, HRTIM_OUTPUT_TA1 | HRTIM_OUTPUT_TA2);
/* Start HRTIM's TIMER A */
HRTIM_WaveformCounterStart(HRTIM1, HRTIM_TIMERID_TIMER_A);
HRTIM_SlaveSetCompare(HRTIM1, HRTIM_TIMERINDEX_TIMER_A, HRTIM_COMPAREUNIT_1, BUCK_PWM_PERIOD/3); //initial PWM period
HRTIM_SlaveSetCompare(HRTIM1, HRTIM_TIMERINDEX_TIMER_A, HRTIM_COMPAREUNIT_2, (uint32_t)ADC_SAMPLE_TIME); /* ADC trigger update */
}
