Fault input for HRTIM is configured as output?

Question

Hi, I am working with the HRTIM in the STM32G474 Nucleo and trying to configure the fault input to reset the outputs.

When I see in the GPIO config of the HRTIM in the STM32CubeIDE I see that the fault input pin HRTIM_FLT1 is configured as Alternate Function Push Pull and if I use a 220 ohm resistor (to prevent a short circuit) in the HRTIM_FLT1 pin and also measure the input, it still 0V. It seems that the input is... not an input :\

Also in the attached code I see that pTimerCfg.FaultEnable = HRTIM_TIMFAULTENABLE_NONE, and I think it should be HRTIM_TIMFAULTENABLE_FAULT1, it is right?

Also in the registers I can see that FLTxR = 0 and it should be 1:

Bit 0 FLT1EN: Fault 1 enable

0: Fault 1 input ignored

1: Fault 1 input is active and disables HRTIM outputs

What I am doing wrong?

The HRTIM initialization code is attached

DKuro.1 · Answer

/** * @brief HRTIM1 Initialization Function * @param None * @retval None */static void MX_HRTIM1_Init(void){  /* USER CODE BEGIN HRTIM1_Init 0 */ /* USER CODE END HRTIM1_Init 0 */  HRTIM_FaultCfgTypeDef pFaultCfg = {0}; HRTIM_FaultBlankingCfgTypeDef pFaultBlkCfg = {0}; HRTIM_TimeBaseCfgTypeDef pTimeBaseCfg = {0}; HRTIM_TimerCfgTypeDef pTimerCfg = {0}; HRTIM_CompareCfgTypeDef pCompareCfg = {0}; HRTIM_TimerCtlTypeDef pTimerCtl = {0}; HRTIM_DeadTimeCfgTypeDef pDeadTimeCfg = {0}; HRTIM_OutputCfgTypeDef pOutputCfg = {0};  /* USER CODE BEGIN HRTIM1_Init 1 */  /* USER CODE END HRTIM1_Init 1 */ hhrtim1.Instance = HRTIM1; hhrtim1.Init.HRTIMInterruptResquests = HRTIM_IT_FLT1; hhrtim1.Init.SyncOptions = HRTIM_SYNCOPTION_MASTER; hhrtim1.Init.SyncOutputSource = HRTIM_SYNCOUTPUTSOURCE_MASTER_CMP1; hhrtim1.Init.SyncOutputPolarity = HRTIM_SYNCOUTPUTPOLARITY_POSITIVE; if (HAL_HRTIM_Init(&hhrtim1) != HAL_OK) { Error_Handler(); } if (HAL_HRTIM_DLLCalibrationStart(&hhrtim1, HRTIM_CALIBRATIONRATE_3) != HAL_OK) { Error_Handler(); } if (HAL_HRTIM_PollForDLLCalibration(&hhrtim1, 10) != HAL_OK) { Error_Handler(); } if (HAL_HRTIM_FaultPrescalerConfig(&hhrtim1, HRTIM_FAULTPRESCALER_DIV1) != HAL_OK) { Error_Handler(); } pFaultCfg.Source = HRTIM_FAULTSOURCE_DIGITALINPUT; pFaultCfg.Polarity = HRTIM_FAULTPOLARITY_HIGH; pFaultCfg.Filter = HRTIM_FAULTFILTER_NONE; pFaultCfg.Lock = HRTIM_FAULTLOCK_READONLY; if (HAL_HRTIM_FaultConfig(&hhrtim1, HRTIM_FAULT_1, &pFaultCfg) != HAL_OK) { Error_Handler(); } pFaultBlkCfg.Threshold = 0; pFaultBlkCfg.ResetMode = HRTIM_FAULTCOUNTERRST_UNCONDITIONAL; pFaultBlkCfg.BlankingSource = HRTIM_FAULTBLANKINGMODE_RSTALIGNED; if (HAL_HRTIM_FaultCounterConfig(&hhrtim1, HRTIM_FAULT_1, &pFaultBlkCfg) != HAL_OK) { Error_Handler(); } if (HAL_HRTIM_FaultBlankingConfigAndEnable(&hhrtim1, HRTIM_FAULT_1, &pFaultBlkCfg) != HAL_OK) { Error_Handler(); } HAL_HRTIM_FaultModeCtl(&hhrtim1, HRTIM_FAULT_1, HRTIM_FAULTMODECTL_ENABLED); pTimeBaseCfg.Period = 27200; pTimeBaseCfg.RepetitionCounter = 0x00; pTimeBaseCfg.PrescalerRatio = HRTIM_PRESCALERRATIO_MUL8; pTimeBaseCfg.Mode = HRTIM_MODE_CONTINUOUS; if (HAL_HRTIM_TimeBaseConfig(&hhrtim1, HRTIM_TIMERINDEX_MASTER, &pTimeBaseCfg) != HAL_OK) { Error_Handler(); } pTimerCfg.InterruptRequests = HRTIM_MASTER_IT_NONE; pTimerCfg.DMARequests = HRTIM_MASTER_DMA_NONE; pTimerCfg.DMASrcAddress = 0x0000; pTimerCfg.DMADstAddress = 0x0000; pTimerCfg.DMASize = 0x1; pTimerCfg.HalfModeEnable = HRTIM_HALFMODE_DISABLED; pTimerCfg.InterleavedMode = HRTIM_INTERLEAVED_MODE_DISABLED; pTimerCfg.StartOnSync = HRTIM_SYNCSTART_DISABLED; pTimerCfg.ResetOnSync = HRTIM_SYNCRESET_DISABLED; pTimerCfg.DACSynchro = HRTIM_DACSYNC_NONE; pTimerCfg.PreloadEnable = HRTIM_PRELOAD_DISABLED; pTimerCfg.UpdateGating = HRTIM_UPDATEGATING_INDEPENDENT; pTimerCfg.BurstMode = HRTIM_TIMERBURSTMODE_MAINTAINCLOCK; pTimerCfg.RepetitionUpdate = HRTIM_UPDATEONREPETITION_ENABLED; pTimerCfg.ReSyncUpdate = HRTIM_TIMERESYNC_UPDATE_UNCONDITIONAL; if (HAL_HRTIM_WaveformTimerConfig(&hhrtim1, HRTIM_TIMERINDEX_MASTER, &pTimerCfg) != HAL_OK) { Error_Handler(); } pCompareCfg.CompareValue = 9066; if (HAL_HRTIM_WaveformCompareConfig(&hhrtim1, HRTIM_TIMERINDEX_MASTER, HRTIM_COMPAREUNIT_1, &pCompareCfg) != HAL_OK) { Error_Handler(); } pTimeBaseCfg.Mode = HRTIM_MODE_SINGLESHOT; if (HAL_HRTIM_TimeBaseConfig(&hhrtim1, HRTIM_TIMERINDEX_TIMER_A, &pTimeBaseCfg) != HAL_OK) { Error_Handler(); } pTimerCtl.UpDownMode = HRTIM_TIMERUPDOWNMODE_UP; pTimerCtl.GreaterCMP1 = HRTIM_TIMERGTCMP1_GREATER; pTimerCtl.DualChannelDacEnable = HRTIM_TIMER_DCDE_DISABLED; if (HAL_HRTIM_WaveformTimerControl(&hhrtim1, HRTIM_TIMERINDEX_TIMER_A, &pTimerCtl) != HAL_OK) { Error_Handler(); } pTimerCfg.InterruptRequests = HRTIM_TIM_IT_NONE; pTimerCfg.DMARequests = HRTIM_TIM_DMA_NONE; pTimerCfg.DMASrcAddress = 0x0000; pTimerCfg.DMADstAddress = 0x0000; pTimerCfg.DMASize = 0x1; pTimerCfg.RepetitionUpdate = HRTIM_UPDATEONREPETITION_DISABLED; pTimerCfg.PushPull = HRTIM_TIMPUSHPULLMODE_DISABLED; pTimerCfg.FaultEnable = HRTIM_TIMFAULTENABLE_NONE; pTimerCfg.FaultLock = HRTIM_TIMFAULTLOCK_READWRITE; pTimerCfg.DeadTimeInsertion = HRTIM_TIMDEADTIMEINSERTION_ENABLED; pTimerCfg.DelayedProtectionMode = HRTIM_TIMER_A_B_C_DELAYEDPROTECTION_DISABLED; pTimerCfg.UpdateTrigger = HRTIM_TIMUPDATETRIGGER_NONE; pTimerCfg.ResetTrigger = HRTIM_TIMRESETTRIGGER_MASTER_PER; pTimerCfg.ResetUpdate = HRTIM_TIMUPDATEONRESET_DISABLED; if (HAL_HRTIM_WaveformTimerConfig(&hhrtim1, HRTIM_TIMERINDEX_TIMER_A, &pTimerCfg) != HAL_OK) { Error_Handler(); } pTimerCfg.DMASrcAddress = 0x0000; pTimerCfg.DMADstAddress = 0x0000; pTimerCfg.DMASize = 0x1; if (HAL_HRTIM_WaveformTimerConfig(&hhrtim1, HRTIM_TIMERINDEX_TIMER_B, &pTimerCfg) != HAL_OK) { Error_Handler(); } pTimerCfg.DMASrcAddress = 0x0000; pTimerCfg.DMADstAddress = 0x0000; pTimerCfg.DMASize = 0x1; if (HAL_HRTIM_WaveformTimerConfig(&hhrtim1, HRTIM_TIMERINDEX_TIMER_C, &pTimerCfg) != HAL_OK) { Error_Handler(); } pCompareCfg.CompareValue = 8984; if (HAL_HRTIM_WaveformCompareConfig(&hhrtim1, HRTIM_TIMERINDEX_TIMER_A, HRTIM_COMPAREUNIT_1, &pCompareCfg) != HAL_OK) { Error_Handler(); } pDeadTimeCfg.Prescaler = HRTIM_TIMDEADTIME_PRESCALERRATIO_MUL8; pDeadTimeCfg.RisingValue = 0x000; pDeadTimeCfg.RisingSign = HRTIM_TIMDEADTIME_RISINGSIGN_POSITIVE; pDeadTimeCfg.RisingLock = HRTIM_TIMDEADTIME_RISINGLOCK_WRITE; pDeadTimeCfg.RisingSignLock = HRTIM_TIMDEADTIME_RISINGSIGNLOCK_WRITE; pDeadTimeCfg.FallingValue = 0x000; pDeadTimeCfg.FallingSign = HRTIM_TIMDEADTIME_FALLINGSIGN_POSITIVE; pDeadTimeCfg.FallingLock = HRTIM_TIMDEADTIME_FALLINGLOCK_WRITE; pDeadTimeCfg.FallingSignLock = HRTIM_TIMDEADTIME_FALLINGSIGNLOCK_WRITE; if (HAL_HRTIM_DeadTimeConfig(&hhrtim1, HRTIM_TIMERINDEX_TIMER_A, &pDeadTimeCfg) != HAL_OK) { Error_Handler(); } if (HAL_HRTIM_DeadTimeConfig(&hhrtim1, HRTIM_TIMERINDEX_TIMER_B, &pDeadTimeCfg) != HAL_OK) { Error_Handler(); } if (HAL_HRTIM_DeadTimeConfig(&hhrtim1, HRTIM_TIMERINDEX_TIMER_C, &pDeadTimeCfg) != HAL_OK) { Error_Handler(); } pOutputCfg.Polarity = HRTIM_OUTPUTPOLARITY_HIGH; pOutputCfg.SetSource = HRTIM_OUTPUTSET_MASTERPER; pOutputCfg.ResetSource = HRTIM_OUTPUTRESET_TIMCMP1; pOutputCfg.IdleMode = HRTIM_OUTPUTIDLEMODE_NONE; pOutputCfg.IdleLevel = HRTIM_OUTPUTIDLELEVEL_INACTIVE; pOutputCfg.FaultLevel = HRTIM_OUTPUTFAULTLEVEL_INACTIVE; pOutputCfg.ChopperModeEnable = HRTIM_OUTPUTCHOPPERMODE_DISABLED; pOutputCfg.BurstModeEntryDelayed = HRTIM_OUTPUTBURSTMODEENTRY_REGULAR; if (HAL_HRTIM_WaveformOutputConfig(&hhrtim1, HRTIM_TIMERINDEX_TIMER_A, HRTIM_OUTPUT_TA1, &pOutputCfg) != HAL_OK) { Error_Handler(); } pOutputCfg.FaultLevel = HRTIM_OUTPUTFAULTLEVEL_NONE; if (HAL_HRTIM_WaveformOutputConfig(&hhrtim1, HRTIM_TIMERINDEX_TIMER_B, HRTIM_OUTPUT_TB1, &pOutputCfg) != HAL_OK) { Error_Handler(); } if (HAL_HRTIM_WaveformOutputConfig(&hhrtim1, HRTIM_TIMERINDEX_TIMER_C, HRTIM_OUTPUT_TC1, &pOutputCfg) != HAL_OK) { Error_Handler(); } pOutputCfg.SetSource = HRTIM_OUTPUTSET_NONE; pOutputCfg.ResetSource = HRTIM_OUTPUTRESET_NONE; pOutputCfg.FaultLevel = HRTIM_OUTPUTFAULTLEVEL_INACTIVE; if (HAL_HRTIM_WaveformOutputConfig(&hhrtim1, HRTIM_TIMERINDEX_TIMER_A, HRTIM_OUTPUT_TA2, &pOutputCfg) != HAL_OK) { Error_Handler(); } pOutputCfg.FaultLevel = HRTIM_OUTPUTFAULTLEVEL_NONE; if (HAL_HRTIM_WaveformOutputConfig(&hhrtim1, HRTIM_TIMERINDEX_TIMER_B, HRTIM_OUTPUT_TB2, &pOutputCfg) != HAL_OK) { Error_Handler(); } if (HAL_HRTIM_WaveformOutputConfig(&hhrtim1, HRTIM_TIMERINDEX_TIMER_C, HRTIM_OUTPUT_TC2, &pOutputCfg) != HAL_OK) { Error_Handler(); } if (HAL_HRTIM_TimeBaseConfig(&hhrtim1, HRTIM_TIMERINDEX_TIMER_B, &pTimeBaseCfg) != HAL_OK) { Error_Handler(); } if (HAL_HRTIM_WaveformTimerControl(&hhrtim1, HRTIM_TIMERINDEX_TIMER_B, &pTimerCtl) != HAL_OK) { Error_Handler(); } if (HAL_HRTIM_WaveformCompareConfig(&hhrtim1, HRTIM_TIMERINDEX_TIMER_B, HRTIM_COMPAREUNIT_1, &pCompareCfg) != HAL_OK) { Error_Handler(); } if (HAL_HRTIM_TimeBaseConfig(&hhrtim1, HRTIM_TIMERINDEX_TIMER_C, &pTimeBaseCfg) != HAL_OK) { Error_Handler(); } if (HAL_HRTIM_WaveformTimerControl(&hhrtim1, HRTIM_TIMERINDEX_TIMER_C, &pTimerCtl) != HAL_OK) { Error_Handler(); } if (HAL_HRTIM_WaveformCompareConfig(&hhrtim1, HRTIM_TIMERINDEX_TIMER_C, HRTIM_COMPAREUNIT_1, &pCompareCfg) != HAL_OK) { Error_Handler(); } /* USER CODE BEGIN HRTIM1_Init 2 */   /* USER CODE END HRTIM1_Init 2 */ HAL_HRTIM_MspPostInit(&hhrtim1); }

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