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CH32V00x/Peripheral/src/ch32v00x_adc.c

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2023-01-22 14:31:21 -05:00
/********************************** (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 <ch32v00x_adc.h>
#include <ch32v00x_rcc.h>
/* 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;
}
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