/********************************** (C) COPYRIGHT ******************************* * File Name : ch32v00x_adc.c * Author : WCH * Version : V1.0.0 * Date : 2022/08/08 * Description : This file provides all the ADC firmware functions. * Copyright (c) 2021 Nanjing Qinheng Microelectronics Co., Ltd. * SPDX-License-Identifier: Apache-2.0 *******************************************************************************/ #include #include /* ADC DISCNUM mask */ #define CTLR1_DISCNUM_Reset ((uint32_t)0xFFFF1FFF) /* ADC DISCEN mask */ #define CTLR1_DISCEN_Set ((uint32_t)0x00000800) #define CTLR1_DISCEN_Reset ((uint32_t)0xFFFFF7FF) /* ADC JAUTO mask */ #define CTLR1_JAUTO_Set ((uint32_t)0x00000400) #define CTLR1_JAUTO_Reset ((uint32_t)0xFFFFFBFF) /* ADC JDISCEN mask */ #define CTLR1_JDISCEN_Set ((uint32_t)0x00001000) #define CTLR1_JDISCEN_Reset ((uint32_t)0xFFFFEFFF) /* ADC AWDCH mask */ #define CTLR1_AWDCH_Reset ((uint32_t)0xFFFFFFE0) /* ADC Analog watchdog enable mode mask */ #define CTLR1_AWDMode_Reset ((uint32_t)0xFF3FFDFF) /* CTLR1 register Mask */ #define CTLR1_CLEAR_Mask ((uint32_t)0xFFF0FEFF) /* ADC ADON mask */ #define CTLR2_ADON_Set ((uint32_t)0x00000001) #define CTLR2_ADON_Reset ((uint32_t)0xFFFFFFFE) /* ADC DMA mask */ #define CTLR2_DMA_Set ((uint32_t)0x00000100) #define CTLR2_DMA_Reset ((uint32_t)0xFFFFFEFF) /* ADC RSTCAL mask */ #define CTLR2_RSTCAL_Set ((uint32_t)0x00000008) /* ADC CAL mask */ #define CTLR2_CAL_Set ((uint32_t)0x00000004) /* ADC SWSTART mask */ #define CTLR2_SWSTART_Set ((uint32_t)0x00400000) /* ADC EXTTRIG mask */ #define CTLR2_EXTTRIG_Set ((uint32_t)0x00100000) #define CTLR2_EXTTRIG_Reset ((uint32_t)0xFFEFFFFF) /* ADC Software start mask */ #define CTLR2_EXTTRIG_SWSTART_Set ((uint32_t)0x00500000) #define CTLR2_EXTTRIG_SWSTART_Reset ((uint32_t)0xFFAFFFFF) /* ADC JEXTSEL mask */ #define CTLR2_JEXTSEL_Reset ((uint32_t)0xFFFF8FFF) /* ADC JEXTTRIG mask */ #define CTLR2_JEXTTRIG_Set ((uint32_t)0x00008000) #define CTLR2_JEXTTRIG_Reset ((uint32_t)0xFFFF7FFF) /* ADC JSWSTART mask */ #define CTLR2_JSWSTART_Set ((uint32_t)0x00200000) /* ADC injected software start mask */ #define CTLR2_JEXTTRIG_JSWSTART_Set ((uint32_t)0x00208000) #define CTLR2_JEXTTRIG_JSWSTART_Reset ((uint32_t)0xFFDF7FFF) /* ADC TSPD mask */ #define CTLR2_TSVREFE_Set ((uint32_t)0x00800000) #define CTLR2_TSVREFE_Reset ((uint32_t)0xFF7FFFFF) /* CTLR2 register Mask */ #define CTLR2_CLEAR_Mask ((uint32_t)0xFFF1F7FD) /* ADC SQx mask */ #define RSQR3_SQ_Set ((uint32_t)0x0000001F) #define RSQR2_SQ_Set ((uint32_t)0x0000001F) #define RSQR1_SQ_Set ((uint32_t)0x0000001F) /* RSQR1 register Mask */ #define RSQR1_CLEAR_Mask ((uint32_t)0xFF0FFFFF) /* ADC JSQx mask */ #define ISQR_JSQ_Set ((uint32_t)0x0000001F) /* ADC JL mask */ #define ISQR_JL_Set ((uint32_t)0x00300000) #define ISQR_JL_Reset ((uint32_t)0xFFCFFFFF) /* ADC SMPx mask */ #define SAMPTR1_SMP_Set ((uint32_t)0x00000007) #define SAMPTR2_SMP_Set ((uint32_t)0x00000007) /* ADC IDATARx registers offset */ #define IDATAR_Offset ((uint8_t)0x28) /********************************************************************* * @fn ADC_DeInit * * @brief Deinitializes the ADCx peripheral registers to their default * reset values. * * @param ADCx - where x can be 1 to select the ADC peripheral. * * @return none */ void ADC_DeInit(ADC_TypeDef *ADCx) { if(ADCx == ADC1) { RCC_APB2PeriphResetCmd(RCC_APB2Periph_ADC1, ENABLE); RCC_APB2PeriphResetCmd(RCC_APB2Periph_ADC1, DISABLE); } } /********************************************************************* * @fn ADC_Init * * @brief Initializes the ADCx peripheral according to the specified * parameters in the ADC_InitStruct. * * @param ADCx - where x can be 1 to select the ADC peripheral. * ADC_InitStruct - pointer to an ADC_InitTypeDef structure that * contains the configuration information for the specified ADC * peripheral. * * @return none */ void ADC_Init(ADC_TypeDef *ADCx, ADC_InitTypeDef *ADC_InitStruct) { uint32_t tmpreg1 = 0; uint8_t tmpreg2 = 0; tmpreg1 = ADCx->CTLR1; tmpreg1 &= CTLR1_CLEAR_Mask; tmpreg1 |= (uint32_t)(ADC_InitStruct->ADC_Mode | ((uint32_t)ADC_InitStruct->ADC_ScanConvMode << 8)); ADCx->CTLR1 = tmpreg1; tmpreg1 = ADCx->CTLR2; tmpreg1 &= CTLR2_CLEAR_Mask; tmpreg1 |= (uint32_t)(ADC_InitStruct->ADC_DataAlign | ADC_InitStruct->ADC_ExternalTrigConv | ((uint32_t)ADC_InitStruct->ADC_ContinuousConvMode << 1)); ADCx->CTLR2 = tmpreg1; tmpreg1 = ADCx->RSQR1; tmpreg1 &= RSQR1_CLEAR_Mask; tmpreg2 |= (uint8_t)(ADC_InitStruct->ADC_NbrOfChannel - (uint8_t)1); tmpreg1 |= (uint32_t)tmpreg2 << 20; ADCx->RSQR1 = tmpreg1; } /********************************************************************* * @fn ADC_StructInit * * @brief Fills each ADC_InitStruct member with its default value. * * @param ADC_InitStruct - pointer to an ADC_InitTypeDef structure that * contains the configuration information for the specified ADC * peripheral. * * @return none */ void ADC_StructInit(ADC_InitTypeDef *ADC_InitStruct) { ADC_InitStruct->ADC_Mode = ADC_Mode_Independent; ADC_InitStruct->ADC_ScanConvMode = DISABLE; ADC_InitStruct->ADC_ContinuousConvMode = DISABLE; ADC_InitStruct->ADC_ExternalTrigConv = ADC_ExternalTrigConv_T1_TRGO; ADC_InitStruct->ADC_DataAlign = ADC_DataAlign_Right; ADC_InitStruct->ADC_NbrOfChannel = 1; } /********************************************************************* * @fn ADC_Cmd * * @brief Enables or disables the specified ADC peripheral. * * @param ADCx - where x can be 1 to select the ADC peripheral. * NewState - ENABLE or DISABLE. * * @return none */ void ADC_Cmd(ADC_TypeDef *ADCx, FunctionalState NewState) { if(NewState != DISABLE) { ADCx->CTLR2 |= CTLR2_ADON_Set; } else { ADCx->CTLR2 &= CTLR2_ADON_Reset; } } /********************************************************************* * @fn ADC_DMACmd * * @brief Enables or disables the specified ADC DMA request. * * @param ADCx - where x can be 1 to select the ADC peripheral. * NewState - ENABLE or DISABLE. * * @return none */ void ADC_DMACmd(ADC_TypeDef *ADCx, FunctionalState NewState) { if(NewState != DISABLE) { ADCx->CTLR2 |= CTLR2_DMA_Set; } else { ADCx->CTLR2 &= CTLR2_DMA_Reset; } } /********************************************************************* * @fn ADC_ITConfig * * @brief Enables or disables the specified ADC interrupts. * * @param ADCx - where x can be 1 to select the ADC peripheral. * ADC_IT - specifies the ADC interrupt sources to be enabled or disabled. * ADC_IT_EOC - End of conversion interrupt mask. * ADC_IT_AWD - Analog watchdog interrupt mask. * ADC_IT_JEOC - End of injected conversion interrupt mask. * NewState - ENABLE or DISABLE. * * @return none */ void ADC_ITConfig(ADC_TypeDef *ADCx, uint16_t ADC_IT, FunctionalState NewState) { uint8_t itmask = 0; itmask = (uint8_t)ADC_IT; if(NewState != DISABLE) { ADCx->CTLR1 |= itmask; } else { ADCx->CTLR1 &= (~(uint32_t)itmask); } } /********************************************************************* * @fn ADC_ResetCalibration * * @brief Resets the selected ADC calibration registers. * * @param ADCx - where x can be 1 to select the ADC peripheral. * * @return none */ void ADC_ResetCalibration(ADC_TypeDef *ADCx) { ADCx->CTLR2 |= CTLR2_RSTCAL_Set; } /********************************************************************* * @fn ADC_GetResetCalibrationStatus * * @brief Gets the selected ADC reset calibration registers status. * * @param ADCx - where x can be 1 to select the ADC peripheral. * * @return FlagStatus: SET or RESET. */ FlagStatus ADC_GetResetCalibrationStatus(ADC_TypeDef *ADCx) { FlagStatus bitstatus = RESET; if((ADCx->CTLR2 & CTLR2_RSTCAL_Set) != (uint32_t)RESET) { bitstatus = SET; } else { bitstatus = RESET; } return bitstatus; } /********************************************************************* * @fn ADC_StartCalibration * * @brief Starts the selected ADC calibration process. * * @param ADCx - where x can be 1 to select the ADC peripheral. * * @return None */ void ADC_StartCalibration(ADC_TypeDef *ADCx) { ADCx->CTLR2 |= CTLR2_CAL_Set; } /********************************************************************* * @fn ADC_GetCalibrationStatus * * @brief Gets the selected ADC calibration status. * * @param ADCx - where x can be 1 to select the ADC peripheral. * * @return FlagStatus: SET or RESET. */ FlagStatus ADC_GetCalibrationStatus(ADC_TypeDef *ADCx) { FlagStatus bitstatus = RESET; if((ADCx->CTLR2 & CTLR2_CAL_Set) != (uint32_t)RESET) { bitstatus = SET; } else { bitstatus = RESET; } return bitstatus; } /********************************************************************* * @fn ADC_SoftwareStartConvCmd * * @brief Enables or disables the selected ADC software start conversion. * * @param ADCx - where x can be 1 or 2 to select the ADC peripheral. * NewState - ENABLE or DISABLE. * * @return None */ void ADC_SoftwareStartConvCmd(ADC_TypeDef *ADCx, FunctionalState NewState) { if(NewState != DISABLE) { ADCx->CTLR2 |= CTLR2_EXTTRIG_SWSTART_Set; } else { ADCx->CTLR2 &= CTLR2_EXTTRIG_SWSTART_Reset; } } /********************************************************************* * @fn ADC_GetSoftwareStartConvStatus * * @brief Gets the selected ADC Software start conversion Status. * * @param ADCx - where x can be 1 to select the ADC peripheral. * * @return FlagStatus - SET or RESET. */ FlagStatus ADC_GetSoftwareStartConvStatus(ADC_TypeDef *ADCx) { FlagStatus bitstatus = RESET; if((ADCx->CTLR2 & CTLR2_SWSTART_Set) != (uint32_t)RESET) { bitstatus = SET; } else { bitstatus = RESET; } return bitstatus; } /********************************************************************* * @fn ADC_DiscModeChannelCountConfig * * @brief Configures the discontinuous mode for the selected ADC regular * group channel. * * @param ADCx - where x can be 1 to select the ADC peripheral. * Number - specifies the discontinuous mode regular channel * count value(1-8). * * @return None */ void ADC_DiscModeChannelCountConfig(ADC_TypeDef *ADCx, uint8_t Number) { uint32_t tmpreg1 = 0; uint32_t tmpreg2 = 0; tmpreg1 = ADCx->CTLR1; tmpreg1 &= CTLR1_DISCNUM_Reset; tmpreg2 = Number - 1; tmpreg1 |= tmpreg2 << 13; ADCx->CTLR1 = tmpreg1; } /********************************************************************* * @fn ADC_DiscModeCmd * * @brief Enables or disables the discontinuous mode on regular group * channel for the specified ADC. * * @param ADCx - where x can be 1 to select the ADC peripheral. * NewState - ENABLE or DISABLE. * * @return None */ void ADC_DiscModeCmd(ADC_TypeDef *ADCx, FunctionalState NewState) { if(NewState != DISABLE) { ADCx->CTLR1 |= CTLR1_DISCEN_Set; } else { ADCx->CTLR1 &= CTLR1_DISCEN_Reset; } } /********************************************************************* * @fn ADC_RegularChannelConfig * * @brief Configures for the selected ADC regular channel its corresponding * rank in the sequencer and its sample time. * * @param ADCx - where x can be 1 to select the ADC peripheral. * ADC_Channel - the ADC channel to configure. * ADC_Channel_0 - ADC Channel0 selected. * ADC_Channel_1 - ADC Channel1 selected. * ADC_Channel_2 - ADC Channel2 selected. * ADC_Channel_3 - ADC Channel3 selected. * ADC_Channel_4 - ADC Channel4 selected. * ADC_Channel_5 - ADC Channel5 selected. * ADC_Channel_6 - ADC Channel6 selected. * ADC_Channel_7 - ADC Channel7 selected. * ADC_Channel_Vrefint - ADC Channel8 selected. * ADC_Channel_Vcalint - ADC Channel9 selected. * Rank - The rank in the regular group sequencer. * This parameter must be between 1 to 16. * ADC_SampleTime - The sample time value to be set for the selected channel. * ADC_SampleTime_3Cycles - Sample time equal to 3 cycles. * ADC_SampleTime_9Cycles - Sample time equal to 9 cycles. * ADC_SampleTime_15Cycles - Sample time equal to 15 cycles. * ADC_SampleTime_30Cycles - Sample time equal to 30 cycles. * ADC_SampleTime_43Cycles - Sample time equal to 43 cycles. * ADC_SampleTime_57Cycles - Sample time equal to 57 cycles. * ADC_SampleTime_73Cycles - Sample time equal to 73 cycles. * ADC_SampleTime_241Cycles - Sample time equal to 241 cycles. * * @return None */ void ADC_RegularChannelConfig(ADC_TypeDef *ADCx, uint8_t ADC_Channel, uint8_t Rank, uint8_t ADC_SampleTime) { uint32_t tmpreg1 = 0, tmpreg2 = 0; if(ADC_Channel > ADC_Channel_9) { tmpreg1 = ADCx->SAMPTR1; tmpreg2 = SAMPTR1_SMP_Set << (3 * (ADC_Channel - 10)); tmpreg1 &= ~tmpreg2; tmpreg2 = (uint32_t)ADC_SampleTime << (3 * (ADC_Channel - 10)); tmpreg1 |= tmpreg2; ADCx->SAMPTR1 = tmpreg1; } else { tmpreg1 = ADCx->SAMPTR2; tmpreg2 = SAMPTR2_SMP_Set << (3 * ADC_Channel); tmpreg1 &= ~tmpreg2; tmpreg2 = (uint32_t)ADC_SampleTime << (3 * ADC_Channel); tmpreg1 |= tmpreg2; ADCx->SAMPTR2 = tmpreg1; } if(Rank < 7) { tmpreg1 = ADCx->RSQR3; tmpreg2 = RSQR3_SQ_Set << (5 * (Rank - 1)); tmpreg1 &= ~tmpreg2; tmpreg2 = (uint32_t)ADC_Channel << (5 * (Rank - 1)); tmpreg1 |= tmpreg2; ADCx->RSQR3 = tmpreg1; } else if(Rank < 13) { tmpreg1 = ADCx->RSQR2; tmpreg2 = RSQR2_SQ_Set << (5 * (Rank - 7)); tmpreg1 &= ~tmpreg2; tmpreg2 = (uint32_t)ADC_Channel << (5 * (Rank - 7)); tmpreg1 |= tmpreg2; ADCx->RSQR2 = tmpreg1; } else { tmpreg1 = ADCx->RSQR1; tmpreg2 = RSQR1_SQ_Set << (5 * (Rank - 13)); tmpreg1 &= ~tmpreg2; tmpreg2 = (uint32_t)ADC_Channel << (5 * (Rank - 13)); tmpreg1 |= tmpreg2; ADCx->RSQR1 = tmpreg1; } } /********************************************************************* * @fn ADC_ExternalTrigConvCmd * * @brief Enables or disables the ADCx conversion through external trigger. * * @param ADCx - where x can be 1 to select the ADC peripheral. * NewState - ENABLE or DISABLE. * * @return None */ void ADC_ExternalTrigConvCmd(ADC_TypeDef *ADCx, FunctionalState NewState) { if(NewState != DISABLE) { ADCx->CTLR2 |= CTLR2_EXTTRIG_Set; } else { ADCx->CTLR2 &= CTLR2_EXTTRIG_Reset; } } /********************************************************************* * @fn ADC_GetConversionValue * * @brief Returns the last ADCx conversion result data for regular channel. * * @param ADCx - where x can be 1 to select the ADC peripheral. * * @return ADCx->RDATAR - The Data conversion value. */ uint16_t ADC_GetConversionValue(ADC_TypeDef *ADCx) { return (uint16_t)ADCx->RDATAR; } /********************************************************************* * @fn ADC_AutoInjectedConvCmd * * @brief Enables or disables the selected ADC automatic injected group * conversion after regular one. * * @param ADCx - where x can be 1 to select the ADC peripheral. * NewState - ENABLE or DISABLE. * * @return None */ void ADC_AutoInjectedConvCmd(ADC_TypeDef *ADCx, FunctionalState NewState) { if(NewState != DISABLE) { ADCx->CTLR1 |= CTLR1_JAUTO_Set; } else { ADCx->CTLR1 &= CTLR1_JAUTO_Reset; } } /********************************************************************* * @fn ADC_InjectedDiscModeCmd * * @brief Enables or disables the discontinuous mode for injected group * channel for the specified ADC. * * @param ADCx - where x can be 1 to select the ADC peripheral. * NewState - ENABLE or DISABLE. * * @return None */ void ADC_InjectedDiscModeCmd(ADC_TypeDef *ADCx, FunctionalState NewState) { if(NewState != DISABLE) { ADCx->CTLR1 |= CTLR1_JDISCEN_Set; } else { ADCx->CTLR1 &= CTLR1_JDISCEN_Reset; } } /********************************************************************* * @fn ADC_ExternalTrigInjectedConvConfig * * @brief Configures the ADCx external trigger for injected channels conversion. * * @param ADCx - where x can be 1 to select the ADC peripheral. * ADC_ExternalTrigInjecConv - specifies the ADC trigger to start * injected conversion. * ADC_ExternalTrigInjecConv_T1_CC3 - Timer1 capture compare3 selected. * ADC_ExternalTrigInjecConv_T1_CC4 - Timer1 capture compare4 selected. * ADC_ExternalTrigInjecConv_T2_CC3 - Timer2 capture compare3 selected. * ADC_ExternalTrigInjecConv_T2_CC4 - Timer2 capture compare4 selected. * ADC_ExternalTrigInjecConv_Ext_PD1_PA2 - PD1 or PA2 selected. * line 15 event selected. * ADC_ExternalTrigInjecConv_None: Injected conversion started * by software and not by external trigger. * * @return None */ void ADC_ExternalTrigInjectedConvConfig(ADC_TypeDef *ADCx, uint32_t ADC_ExternalTrigInjecConv) { uint32_t tmpreg = 0; tmpreg = ADCx->CTLR2; tmpreg &= CTLR2_JEXTSEL_Reset; tmpreg |= ADC_ExternalTrigInjecConv; ADCx->CTLR2 = tmpreg; } /********************************************************************* * @fn ADC_ExternalTrigInjectedConvCmd * * @brief Enables or disables the ADCx injected channels conversion through * external trigger. * * @param ADCx - where x can be 1 to select the ADC peripheral. * NewState - ENABLE or DISABLE. * * @return None */ void ADC_ExternalTrigInjectedConvCmd(ADC_TypeDef *ADCx, FunctionalState NewState) { if(NewState != DISABLE) { ADCx->CTLR2 |= CTLR2_JEXTTRIG_Set; } else { ADCx->CTLR2 &= CTLR2_JEXTTRIG_Reset; } } /********************************************************************* * @fn ADC_SoftwareStartInjectedConvCmd * * @brief Enables or disables the selected ADC start of the injected * channels conversion. * * @param ADCx - where x can be 1 to select the ADC peripheral. * NewState - ENABLE or DISABLE. * * @return None */ void ADC_SoftwareStartInjectedConvCmd(ADC_TypeDef *ADCx, FunctionalState NewState) { if(NewState != DISABLE) { ADCx->CTLR2 |= CTLR2_JEXTTRIG_JSWSTART_Set; } else { ADCx->CTLR2 &= CTLR2_JEXTTRIG_JSWSTART_Reset; } } /********************************************************************* * @fn ADC_GetSoftwareStartInjectedConvCmdStatus * * @brief Gets the selected ADC Software start injected conversion Status. * * @param ADCx - where x can be 1 to select the ADC peripheral. * * @return FlagStatus: SET or RESET. */ FlagStatus ADC_GetSoftwareStartInjectedConvCmdStatus(ADC_TypeDef *ADCx) { FlagStatus bitstatus = RESET; if((ADCx->CTLR2 & CTLR2_JSWSTART_Set) != (uint32_t)RESET) { bitstatus = SET; } else { bitstatus = RESET; } return bitstatus; } /********************************************************************* * @fn ADC_InjectedChannelConfig * * @brief Configures for the selected ADC injected channel its corresponding * rank in the sequencer and its sample time. * * @param ADCx - where x can be 1 to select the ADC peripheral. * ADC_Channel - the ADC channel to configure. * ADC_Channel_0 - ADC Channel0 selected. * ADC_Channel_1 - ADC Channel1 selected. * ADC_Channel_2 - ADC Channel2 selected. * ADC_Channel_3 - ADC Channel3 selected. * ADC_Channel_4 - ADC Channel4 selected. * ADC_Channel_5 - ADC Channel5 selected. * ADC_Channel_6 - ADC Channel6 selected. * ADC_Channel_7 - ADC Channel7 selected. * ADC_Channel_Vrefint - ADC Channel8 selected. * ADC_Channel_Vcalint - ADC Channel9 selected. * Rank - The rank in the regular group sequencer. * This parameter must be between 1 to 16. * ADC_SampleTime - The sample time value to be set for the selected channel. * ADC_SampleTime_3Cycles - Sample time equal to 3 cycles. * ADC_SampleTime_9Cycles - Sample time equal to 9 cycles. * ADC_SampleTime_15Cycles - Sample time equal to 15 cycles. * ADC_SampleTime_30Cycles - Sample time equal to 30 cycles. * ADC_SampleTime_43Cycles - Sample time equal to 43 cycles. * ADC_SampleTime_57Cycles - Sample time equal to 57 cycles. * ADC_SampleTime_73Cycles - Sample time equal to 73 cycles. * ADC_SampleTime_241Cycles - Sample time equal to 241 cycles. * * @return None */ void ADC_InjectedChannelConfig(ADC_TypeDef *ADCx, uint8_t ADC_Channel, uint8_t Rank, uint8_t ADC_SampleTime) { uint32_t tmpreg1 = 0, tmpreg2 = 0, tmpreg3 = 0; if(ADC_Channel > ADC_Channel_9) { tmpreg1 = ADCx->SAMPTR1; tmpreg2 = SAMPTR1_SMP_Set << (3 * (ADC_Channel - 10)); tmpreg1 &= ~tmpreg2; tmpreg2 = (uint32_t)ADC_SampleTime << (3 * (ADC_Channel - 10)); tmpreg1 |= tmpreg2; ADCx->SAMPTR1 = tmpreg1; } else { tmpreg1 = ADCx->SAMPTR2; tmpreg2 = SAMPTR2_SMP_Set << (3 * ADC_Channel); tmpreg1 &= ~tmpreg2; tmpreg2 = (uint32_t)ADC_SampleTime << (3 * ADC_Channel); tmpreg1 |= tmpreg2; ADCx->SAMPTR2 = tmpreg1; } tmpreg1 = ADCx->ISQR; tmpreg3 = (tmpreg1 & ISQR_JL_Set) >> 20; tmpreg2 = ISQR_JSQ_Set << (5 * (uint8_t)((Rank + 3) - (tmpreg3 + 1))); tmpreg1 &= ~tmpreg2; tmpreg2 = (uint32_t)ADC_Channel << (5 * (uint8_t)((Rank + 3) - (tmpreg3 + 1))); tmpreg1 |= tmpreg2; ADCx->ISQR = tmpreg1; } /********************************************************************* * @fn ADC_InjectedSequencerLengthConfig * * @brief Configures the sequencer length for injected channels. * * @param ADCx - where x can be 1 to select the ADC peripheral. * Length - The sequencer length. * This parameter must be a number between 1 to 4. * * @return None */ void ADC_InjectedSequencerLengthConfig(ADC_TypeDef *ADCx, uint8_t Length) { uint32_t tmpreg1 = 0; uint32_t tmpreg2 = 0; tmpreg1 = ADCx->ISQR; tmpreg1 &= ISQR_JL_Reset; tmpreg2 = Length - 1; tmpreg1 |= tmpreg2 << 20; ADCx->ISQR = tmpreg1; } /********************************************************************* * @fn ADC_SetInjectedOffset * * @brief Set the injected channels conversion value offset. * * @param ADCx - where x can be 1 to select the ADC peripheral. * ADC_InjectedChannel: the ADC injected channel to set its offset. * ADC_InjectedChannel_1 - Injected Channel1 selected. * ADC_InjectedChannel_2 - Injected Channel2 selected. * ADC_InjectedChannel_3 - Injected Channel3 selected. * ADC_InjectedChannel_4 - Injected Channel4 selected. * Offset - the offset value for the selected ADC injected channel. * This parameter must be a 12bit value. * * @return None */ void ADC_SetInjectedOffset(ADC_TypeDef *ADCx, uint8_t ADC_InjectedChannel, uint16_t Offset) { __IO uint32_t tmp = 0; tmp = (uint32_t)ADCx; tmp += ADC_InjectedChannel; *(__IO uint32_t *)tmp = (uint32_t)Offset; } /********************************************************************* * @fn ADC_GetInjectedConversionValue * * @brief Returns the ADC injected channel conversion result. * * @param ADCx - where x can be 1 to select the ADC peripheral. * ADC_InjectedChannel - the ADC injected channel to set its offset. * ADC_InjectedChannel_1 - Injected Channel1 selected. * ADC_InjectedChannel_2 - Injected Channel2 selected. * ADC_InjectedChannel_3 - Injected Channel3 selected. * ADC_InjectedChannel_4 - Injected Channel4 selected. * * @return tmp - The Data conversion value. */ uint16_t ADC_GetInjectedConversionValue(ADC_TypeDef *ADCx, uint8_t ADC_InjectedChannel) { __IO uint32_t tmp = 0; tmp = (uint32_t)ADCx; tmp += ADC_InjectedChannel + IDATAR_Offset; return (uint16_t)(*(__IO uint32_t *)tmp); } /********************************************************************* * @fn ADC_AnalogWatchdogCmd * * @brief Enables or disables the analog watchdog on single/all regular * or injected channels. * * @param ADCx - where x can be 1 to select the ADC peripheral. * ADC_AnalogWatchdog - the ADC analog watchdog configuration. * ADC_AnalogWatchdog_SingleRegEnable - Analog watchdog on a * single regular channel. * ADC_AnalogWatchdog_SingleInjecEnable - Analog watchdog on a * single injected channel. * ADC_AnalogWatchdog_SingleRegOrInjecEnable - Analog watchdog * on a single regular or injected channel. * ADC_AnalogWatchdog_AllRegEnable - Analog watchdog on all * regular channel. * ADC_AnalogWatchdog_AllInjecEnable - Analog watchdog on all * injected channel. * ADC_AnalogWatchdog_AllRegAllInjecEnable - Analog watchdog on * all regular and injected channels. * ADC_AnalogWatchdog_None - No channel guarded by the analog * watchdog. * * @return none */ void ADC_AnalogWatchdogCmd(ADC_TypeDef *ADCx, uint32_t ADC_AnalogWatchdog) { uint32_t tmpreg = 0; tmpreg = ADCx->CTLR1; tmpreg &= CTLR1_AWDMode_Reset; tmpreg |= ADC_AnalogWatchdog; ADCx->CTLR1 = tmpreg; } /********************************************************************* * @fn ADC_AnalogWatchdogThresholdsConfig * * @brief Configures the high and low thresholds of the analog watchdog. * * @param ADCx - where x can be 1 to select the ADC peripheral. * HighThreshold - the ADC analog watchdog High threshold value. * This parameter must be a 10bit value. * LowThreshold - the ADC analog watchdog Low threshold value. * This parameter must be a 10bit value. * * @return none */ void ADC_AnalogWatchdogThresholdsConfig(ADC_TypeDef *ADCx, uint16_t HighThreshold, uint16_t LowThreshold) { ADCx->WDHTR = HighThreshold; ADCx->WDLTR = LowThreshold; } /********************************************************************* * @fn ADC_AnalogWatchdogSingleChannelConfig * * @brief Configures the analog watchdog guarded single channel. * * @param ADCx - where x can be 1 to select the ADC peripheral. * ADC_Channel - the ADC channel to configure. * ADC_Channel_0 - ADC Channel0 selected. * ADC_Channel_1 - ADC Channel1 selected. * ADC_Channel_2 - ADC Channel2 selected. * ADC_Channel_3 - ADC Channel3 selected. * ADC_Channel_4 - ADC Channel4 selected. * ADC_Channel_5 - ADC Channel5 selected. * ADC_Channel_6 - ADC Channel6 selected. * ADC_Channel_7 - ADC Channel7 selected. * ADC_Channel_Vrefint - ADC Channel8 selected. * ADC_Channel_Vcalint - ADC Channel9 selected. * * @return None */ void ADC_AnalogWatchdogSingleChannelConfig(ADC_TypeDef *ADCx, uint8_t ADC_Channel) { uint32_t tmpreg = 0; tmpreg = ADCx->CTLR1; tmpreg &= CTLR1_AWDCH_Reset; tmpreg |= ADC_Channel; ADCx->CTLR1 = tmpreg; } /********************************************************************* * @fn ADC_GetFlagStatus * * @brief Checks whether the specified ADC flag is set or not. * * @param ADCx - where x can be 1 to select the ADC peripheral. * ADC_FLAG - specifies the flag to check. * ADC_FLAG_AWD - Analog watchdog flag. * ADC_FLAG_EOC - End of conversion flag. * ADC_FLAG_JEOC - End of injected group conversion flag. * ADC_FLAG_JSTRT - Start of injected group conversion flag. * ADC_FLAG_STRT - Start of regular group conversion flag. * * @return FlagStatus: SET or RESET. */ FlagStatus ADC_GetFlagStatus(ADC_TypeDef *ADCx, uint8_t ADC_FLAG) { FlagStatus bitstatus = RESET; if((ADCx->STATR & ADC_FLAG) != (uint8_t)RESET) { bitstatus = SET; } else { bitstatus = RESET; } return bitstatus; } /********************************************************************* * @fn ADC_ClearFlag * * @brief Clears the ADCx's pending flags. * * @param ADCx - where x can be 1 to select the ADC peripheral. * ADC_FLAG - specifies the flag to clear. * ADC_FLAG_AWD - Analog watchdog flag. * ADC_FLAG_EOC - End of conversion flag. * ADC_FLAG_JEOC - End of injected group conversion flag. * ADC_FLAG_JSTRT - Start of injected group conversion flag. * ADC_FLAG_STRT - Start of regular group conversion flag. * * @return none */ void ADC_ClearFlag(ADC_TypeDef *ADCx, uint8_t ADC_FLAG) { ADCx->STATR = ~(uint32_t)ADC_FLAG; } /********************************************************************* * @fn ADC_GetITStatus * * @brief Checks whether the specified ADC interrupt has occurred or not. * * @param ADCx - where x can be 1 to select the ADC peripheral. * ADC_IT - specifies the ADC interrupt source to check. * ADC_IT_EOC - End of conversion interrupt mask. * ADC_IT_AWD - Analog watchdog interrupt mask. * ADC_IT_JEOC - End of injected conversion interrupt mask. * * @return ITStatus: SET or RESET. */ ITStatus ADC_GetITStatus(ADC_TypeDef *ADCx, uint16_t ADC_IT) { ITStatus bitstatus = RESET; uint32_t itmask = 0, enablestatus = 0; itmask = ADC_IT >> 8; enablestatus = (ADCx->CTLR1 & (uint8_t)ADC_IT); if(((ADCx->STATR & itmask) != (uint32_t)RESET) && enablestatus) { bitstatus = SET; } else { bitstatus = RESET; } return bitstatus; } /********************************************************************* * @fn ADC_ClearITPendingBit * * @brief Clears the ADCx's interrupt pending bits. * * @param ADCx - where x can be 1 to select the ADC peripheral. * ADC_IT - specifies the ADC interrupt pending bit to clear. * ADC_IT_EOC - End of conversion interrupt mask. * ADC_IT_AWD - Analog watchdog interrupt mask. * ADC_IT_JEOC - End of injected conversion interrupt mask. * * @return none */ void ADC_ClearITPendingBit(ADC_TypeDef *ADCx, uint16_t ADC_IT) { uint8_t itmask = 0; itmask = (uint8_t)(ADC_IT >> 8); ADCx->STATR = ~(uint32_t)itmask; } /********************************************************************* * @fn ADC_Calibration_Vol * * @brief ADC calibration voltage. * * @param ADCx - where x can be 1 to select the ADC peripheral. * ADC_CALVOL - ADC calibration voltage. * ADC_CALVOL_50PERCENT - 50% VDD. * ADC_CALVOL_75PERCENT - 75% VDD. * * @return none */ void ADC_Calibration_Vol(ADC_TypeDef *ADCx, uint32_t ADC_CALVOL) { ADCx->CTLR1 &= ~(uint32_t)(3<<25); ADCx->CTLR1 |= ADC_CALVOL; } /********************************************************************* * @fn ADC_ExternalTrig_DLY * * @brief ADC external trigger sources delay channels and time. * * @param ADCx - where x can be 1 to select the ADC peripheral. * channel - ADC external trigger sources delay channels. * ADC_ExternalTrigRegul_DLY - External trigger sources regular. * ADC_ExternalTrigInjec_DLY - External trigger sources injected. * DelayTim - ADC external trigger sources delay time * This parameter must range from 0 to 0x1FF. * * @return none */ void ADC_ExternalTrig_DLY(ADC_TypeDef *ADCx, uint32_t channel, uint16_t DelayTim) { ADCx->DLYR &= ~(uint32_t)(0x2FF); ADCx->DLYR |= channel; ADCx->DLYR |= DelayTim; }