//
// Boost_HW_SetPwm()
//
void Boost_HW_SetPwm(void)
{
GPIO_InitTypeDef gpioL, gpioH, gpioIn;
gpioL.GPIO_Pin = BOOST_PWM_L_PIN;
gpioL.GPIO_Mode = GPIO_Mode_AF;
gpioL.GPIO_OType = GPIO_OType_PP;
gpioL.GPIO_Speed = GPIO_Speed_Level_3;
gpioH.GPIO_Pin = BOOST_PWM_H_PIN;
gpioH.GPIO_Mode = GPIO_Mode_AF;
gpioH.GPIO_OType = GPIO_OType_PP;
gpioH.GPIO_Speed = GPIO_Speed_Level_3;
gpioIn.GPIO_Pin = BOOST_IN_PIN;
gpioIn.GPIO_Mode = GPIO_Mode_OUT;
gpioIn.GPIO_OType = GPIO_OType_PP;
gpioIn.GPIO_Speed = GPIO_Speed_Level_3;
//Aciona o clock do HRTIM:
RCC_APB2PeriphClockCmd(RCC_APB2Periph_HRTIM1, ENABLE);
RCC_HRTIM1CLKConfig(RCC_HRTIM1CLK_PLLCLK);
//Aciona o pino que queremos o HRTIM:
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOA, ENABLE);
GPIO_Init(BOOST_PWM_PORT, &gpioL);
GPIO_PinAFConfig(BOOST_PWM_PORT, GPIO_PinSource10,GPIO_AF_13);
GPIO_Init(BOOST_PWM_PORT, &gpioH);
GPIO_PinAFConfig(BOOST_PWM_PORT, GPIO_PinSource11,GPIO_AF_13);
GPIO_Init(BOOST_PWM_PORT, &gpioIn);
GPIO_ResetBits(BOOST_PWM_PORT, BOOST_IN_PIN);
//COnfigura o HRTIM para obter-se uma saida pushpull em pwmH e L:
// OBS usamos o timer B
HRTIM1->HRTIM_MASTER.MCR = 0x00000000; //desliga o HRTIM
HRTIM1->HRTIM_MASTER.MPER = BOOST_HRTIM_LOAD_VAL(BOOST_SW_FREQ); //Periodo do master timer
HRTIM1->HRTIM_TIMERx[1].TIMxCR = 0x00000000 | ( 1 << 3); //MOdo de operacao como output compare e em push-pull
HRTIM1->HRTIM_TIMERx[1].PERxR = BOOST_HRTIM_LOAD_VAL(BOOST_SW_FREQ); //TPWM em hertz acertado
HRTIM1->HRTIM_TIMERx[1].CMP1xR = MAP_TO_PWM(1.0f); //Duty cicle minimo
HRTIM1->HRTIM_TIMERx[1].SETx1R = (1 << 2); //acerta evento de set
HRTIM1->HRTIM_TIMERx[1].RSTx1R = (1 << 3); //e evento de reset
//HRTIM1->HRTIM_TIMERx[1].SETx2R = (1 << 2);
//HRTIM1->HRTIM_TIMERx[1].RSTx2R = (1 << 3);
HRTIM1->HRTIM_TIMERx[1].DTxR = (250 << 16) | (250 << 0) | (0x01 << 10); //acerta o dead time para 20ns (obtido experim.)
HRTIM1->HRTIM_TIMERx[1].OUTxR = (1 << 8); //acerta o sistema de push pull
HRTIM1->HRTIM_COMMON.OENR = (1 << 2) | (1 << 3); //habilita as saidas PWM.
HRTIM1->HRTIM_MASTER.MCR = 0x003F0008; //Habilita o master timer
}
//configure high resolution timer for buck converter and RF out
//push pull mode for HRTIM1_B
void RF_config(){
HRTIM_OutputCfgTypeDef HRTIM_TIM_OutputStructure;
HRTIM_BaseInitTypeDef HRTIM_BaseInitStruct;
HRTIM_TimerInitTypeDef HRTIM_TimerInitStructure;
HRTIM_TimerCfgTypeDef HRTIM_TimerWaveStructure;
HRTIM_CompareCfgTypeDef HRTIM_CompareStructure;
/* ----------------------------*/
/* HRTIM Global initialization */
/* ----------------------------*/
/* Use the PLLx2 clock for HRTIM */
RCC_HRTIM1CLKConfig(RCC_HRTIM1CLK_PLLCLK);
/* Enable HRTIM clock*/
RCC_APB2PeriphClockCmd(RCC_APB2Periph_HRTIM1, ENABLE);
/* HRTIM DLL calibration: periodic calibration, set period to 14µs */
HRTIM_DLLCalibrationStart(HRTIM1, HRTIM_CALIBRATIONRATE_14);
HRTIM1_COMMON->DLLCR |= HRTIM_DLLCR_CALEN;
/* Wait calibration completion*/
while(HRTIM_GetCommonFlagStatus(HRTIM1, HRTIM_ISR_DLLRDY) == RESET);
/* --------------------------------------------------- */
/* TIMERB initialization: timer mode and PWM frequency */
/* --------------------------------------------------- */
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;
//setup hrtimer for max clock speed in continous mode.
HRTIM_BaseInitStruct.Period = PERIOD_6_78MHZ;
HRTIM_BaseInitStruct.RepetitionCounter = 255; //this is for interupts?
HRTIM_BaseInitStruct.PrescalerRatio = HRTIM_PRESCALERRATIO_MUL32;
HRTIM_BaseInitStruct.Mode= HRTIM_MODE_CONTINOUS;
//setup timer B
HRTIM_Waveform_Init(HRTIM1, HRTIM_TIMERINDEX_TIMER_B, &HRTIM_BaseInitStruct, &HRTIM_TimerInitStructure);
HRTIM_TimerWaveStructure.DeadTimeInsertion = HRTIM_TIMDEADTIMEINSERTION_DISABLED;
HRTIM_TimerWaveStructure.DelayedProtectionMode = HRTIM_TIMDELAYEDPROTECTION_DISABLED;
HRTIM_TimerWaveStructure.FaultEnable = HRTIM_TIMFAULTENABLE_NONE;
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_B, &HRTIM_TimerWaveStructure);
//more configure things
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_B, HRTIM_OUTPUT_TB1, &HRTIM_TIM_OutputStructure);
HRTIM_TIM_OutputStructure.SetSource = HRTIM_OUTPUTSET_TIMCMP2;
HRTIM_TIM_OutputStructure.ResetSource = HRTIM_OUTPUTRESET_TIMCMP3;
HRTIM_WaveformOutputConfig(HRTIM1, HRTIM_TIMERINDEX_TIMER_B, HRTIM_OUTPUT_TB2, &HRTIM_TIM_OutputStructure);
//set up the 3 compares
HRTIM_CompareStructure.AutoDelayedMode = HRTIM_AUTODELAYEDMODE_REGULAR;
HRTIM_CompareStructure.AutoDelayedTimeout = 0;
HRTIM_CompareStructure.CompareValue = (PERIOD_6_78MHZ>>1); //starting value
HRTIM_WaveformCompareConfig(HRTIM1, HRTIM_TIMERINDEX_TIMER_B, HRTIM_COMPAREUNIT_1, &HRTIM_CompareStructure);
HRTIM_CompareStructure.AutoDelayedMode = HRTIM_AUTODELAYEDMODE_REGULAR;
HRTIM_CompareStructure.AutoDelayedTimeout = 0;
HRTIM_CompareStructure.CompareValue = (PERIOD_6_78MHZ)>>2; //starting value
HRTIM_WaveformCompareConfig(HRTIM1, HRTIM_TIMERINDEX_TIMER_B, HRTIM_COMPAREUNIT_2, &HRTIM_CompareStructure);
HRTIM_CompareStructure.AutoDelayedMode = HRTIM_AUTODELAYEDMODE_REGULAR;
HRTIM_CompareStructure.AutoDelayedTimeout = 0;
HRTIM_CompareStructure.CompareValue = (PERIOD_6_78MHZ*3)>>2; //starting value
HRTIM_WaveformCompareConfig(HRTIM1, HRTIM_TIMERINDEX_TIMER_B, HRTIM_COMPAREUNIT_3, &HRTIM_CompareStructure);
//enable timer
HRTIM_WaveformCounterStart(HRTIM1, HRTIM_TIMERID_TIMER_B);
}
