/******************** (C) COPYRIGHT 2007 STMicroelectronics ******************** | |
* File Name : stm32f10x_adc.c | |
* Author : MCD Application Team | |
* Date First Issued : 09/29/2006 | |
* Description : This file provides all the ADC firmware functions. | |
******************************************************************************** | |
* History: | |
* 04/02/2007: V0.2 | |
* 02/05/2007: V0.1 | |
* 09/29/2006: V0.01 | |
******************************************************************************** | |
* THE PRESENT SOFTWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS | |
* WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE TIME. | |
* AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY DIRECT, | |
* INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING FROM THE | |
* CONTENT OF SUCH SOFTWARE AND/OR THE USE MADE BY CUSTOMERS OF THE CODING | |
* INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. | |
*******************************************************************************/ | |
/* Includes ------------------------------------------------------------------*/ | |
#include "stm32f10x_adc.h" | |
#include "stm32f10x_rcc.h" | |
/* Private typedef -----------------------------------------------------------*/ | |
/* Private define ------------------------------------------------------------*/ | |
/* ADC ADON mask */ | |
#define CR2_ADON_Set ((u32)0x00000001) | |
#define CR2_ADON_Reset ((u32)0xFFFFFFFE) | |
/* ADC DMA mask */ | |
#define CR2_DMA_Set ((u16)0x0100) | |
#define CR2_DMA_Reset ((u16)0xFEFF) | |
/* ADC RSTCAL mask */ | |
#define CR2_RSTCAL_Set ((u16)0x0008) | |
/* ADC CAL mask */ | |
#define CR2_CAL_Set ((u16)0x0004) | |
/* ADC SWSTRT mask */ | |
#define CR2_SWSTRT_Set ((u32)0x00400000) | |
/* ADC DISCNUM mask */ | |
#define CR1_DISCNUM_Reset ((u32)0xFFFF1FFF) | |
/* ADC DISCEN mask */ | |
#define CR1_DISCEN_Set ((u32)0x00000800) | |
#define CR1_DISCEN_Reset ((u32)0xFFFFF7FF) | |
/* ADC EXTTRIG mask */ | |
#define CR2_EXTTRIG_Set ((u32)0x00100000) | |
#define CR2_EXTTRIG_Reset ((u32)0xFFEFFFFF) | |
/* ADC Software start mask */ | |
#define CR2_EXTTRIG_SWSTRT_Set ((u32)0x00500000) | |
#define CR2_EXTTRIG_SWSTRT_Reset ((u32)0xFFAFFFFF) | |
/* ADC JAUTO mask */ | |
#define CR1_JAUTO_Set ((u32)0x00000400) | |
#define CR1_JAUTO_Reset ((u32)0xFFFFFBFF) | |
/* ADC JDISCEN mask */ | |
#define CR1_JDISCEN_Set ((u32)0x00001000) | |
#define CR1_JDISCEN_Reset ((u32)0xFFFFEFFF) | |
/* ADC JEXTSEL mask */ | |
#define CR2_JEXTSEL_Reset ((u32)0xFFFF8FFF) | |
/* ADC JEXTTRIG mask */ | |
#define CR2_JEXTTRIG_Set ((u32)0x00008000) | |
#define CR2_JEXTTRIG_Reset ((u32)0xFFFF7FFF) | |
/* ADC JSWSTRT mask */ | |
#define CR2_JSWSTRT_Set ((u32)0x00200000) | |
/* ADC injected software start mask */ | |
#define CR2_JEXTTRIG_JSWSTRT_Set ((u32)0x00208000) | |
#define CR2_JEXTTRIG_JSWSTRT_Reset ((u32)0xFFDF7FFF) | |
/* ADC AWDCH mask */ | |
#define CR1_AWDCH_Reset ((u32)0xFFFFFFE0) | |
/* ADC SQx mask */ | |
#define SQR3_SQ_Set ((u8)0x1F) | |
#define SQR2_SQ_Set ((u8)0x1F) | |
#define SQR1_SQ_Set ((u8)0x1F) | |
/* ADC JSQx mask */ | |
#define JSQR_JSQ_Set ((u8)0x1F) | |
/* ADC JL mask */ | |
#define JSQR_JL_Reset ((u32)0xFFCFFFFF) | |
/* ADC SMPx mask */ | |
#define SMPR1_SMP_Set ((u8)0x07) | |
#define SMPR2_SMP_Set ((u8)0x07) | |
/* ADC Analog watchdog enable mode mask */ | |
#define CR1_AWDMode_Reset ((u32)0xFF3FFDFF) | |
/* ADC TSPD mask */ | |
#define CR2_TSPD_Set ((u32)0x00800000) | |
#define CR2_TSPD_Reset ((u32)0xFF7FFFFF) | |
/* ADC JDRx registers= offset */ | |
#define JDR_Offset ((u8)0x28) | |
/* ADC registers Masks */ | |
#define CR1_CLEAR_Mask ((u32)0xFFF0FEFF) | |
#define CR2_CLEAR_Mask ((u32)0xFFF1F7FD) | |
#define SQR1_CLEAR_Mask ((u32)0xFF0FFFFF) | |
/* Private macro -------------------------------------------------------------*/ | |
/* Private variables ---------------------------------------------------------*/ | |
/* Private function prototypes -----------------------------------------------*/ | |
/* Private functions ---------------------------------------------------------*/ | |
/******************************************************************************* | |
* Function Name : ADC_DeInit | |
* Description : Deinitializes the ADCx peripheral registers to their default | |
* reset values. | |
* Input : - ADCx: where x can be 1 or 2 to select the ADC peripheral. | |
* Output : None | |
* Return : None | |
*******************************************************************************/ | |
void ADC_DeInit(ADC_TypeDef* ADCx) | |
{ | |
switch (*(u32*)&ADCx) | |
{ | |
case ADC1_BASE: | |
/* Enable ADC1 reset state */ | |
RCC_APB2PeriphResetCmd(RCC_APB2Periph_ADC1, ENABLE); | |
/* Release ADC1 from reset state */ | |
RCC_APB2PeriphResetCmd(RCC_APB2Periph_ADC1, DISABLE); | |
break; | |
case ADC2_BASE: | |
/* Enable ADC2 reset state */ | |
RCC_APB2PeriphResetCmd(RCC_APB2Periph_ADC2, ENABLE); | |
/* Release ADC2 from reset state */ | |
RCC_APB2PeriphResetCmd(RCC_APB2Periph_ADC2, DISABLE); | |
break; | |
default: | |
break; | |
} | |
} | |
/******************************************************************************* | |
* Function Name : ADC_Init | |
* Description : Initializes the ADCx according to the specified parameters | |
* in the ADC_InitStruct. | |
* Input : - ADCx: where x can be 1 or 2 to select the ADC peripheral. | |
* - ADC_InitStruct: pointer to a ADC_InitTypeDef structure that | |
* contains the configuration information for the specified | |
* ADC peripheral. | |
* Output : None | |
* Return : None | |
******************************************************************************/ | |
void ADC_Init(ADC_TypeDef* ADCx, ADC_InitTypeDef* ADC_InitStruct) | |
{ | |
u32 tmpreg1 = 0; | |
u8 tmpreg2 = 0; | |
/* Check the parameters */ | |
assert(IS_ADC_MODE(ADC_InitStruct->ADC_Mode)); | |
assert(IS_FUNCTIONAL_STATE(ADC_InitStruct->ADC_ScanConvMode)); | |
assert(IS_FUNCTIONAL_STATE(ADC_InitStruct->ADC_ContinuousConvMode)); | |
assert(IS_ADC_EXT_TRIG(ADC_InitStruct->ADC_ExternalTrigConv)); | |
assert(IS_ADC_DATA_ALIGN(ADC_InitStruct->ADC_DataAlign)); | |
assert(IS_ADC_REGULAR_LENGTH(ADC_InitStruct->ADC_NbrOfChannel)); | |
/*---------------------------- ADCx CR1 Configuration -----------------*/ | |
/* Get the ADCx CR1 value */ | |
tmpreg1 = ADCx->CR1; | |
/* Clear DUALMODE and SCAN bits */ | |
tmpreg1 &= CR1_CLEAR_Mask; | |
/* Configure ADCx: Dual mode and scan conversion mode */ | |
/* Set DUALMODE bits according to ADC_Mode value */ | |
/* Set SCAN bit according to ADC_ScanConvMode value */ | |
tmpreg1 |= (u32)(ADC_InitStruct->ADC_Mode | ((u32)ADC_InitStruct->ADC_ScanConvMode << 8)); | |
/* Write to ADCx CR1 */ | |
ADCx->CR1 = tmpreg1; | |
/*---------------------------- ADCx CR2 Configuration -----------------*/ | |
/* Get the ADCx CR2 value */ | |
tmpreg1 = ADCx->CR2; | |
/* Clear CONT, ALIGN and EXTTRIG bits */ | |
tmpreg1 &= CR2_CLEAR_Mask; | |
/* Configure ADCx: external trigger event and continuous conversion mode */ | |
/* Set ALIGN bit according to ADC_DataAlign value */ | |
/* Set EXTTRIG bits according to ADC_ExternalTrigConv value */ | |
/* Set CONT bit according to ADC_ContinuousConvMode value */ | |
tmpreg1 |= (u32)(ADC_InitStruct->ADC_DataAlign | ADC_InitStruct->ADC_ExternalTrigConv | | |
((u32)ADC_InitStruct->ADC_ContinuousConvMode << 1)); | |
/* Write to ADCx CR2 */ | |
ADCx->CR2 = tmpreg1; | |
/*---------------------------- ADCx SQR1 Configuration -----------------*/ | |
/* Get the ADCx SQR1 value */ | |
tmpreg1 = ADCx->SQR1; | |
/* Clear L bits */ | |
tmpreg1 &= SQR1_CLEAR_Mask; | |
/* Configure ADCx: regular channel sequence length */ | |
/* Set L bits according to ADC_NbrOfChannel value */ | |
tmpreg2 |= (ADC_InitStruct->ADC_NbrOfChannel - 1); | |
tmpreg1 |= ((u32)tmpreg2 << 20); | |
/* Write to ADCx SQR1 */ | |
ADCx->SQR1 = tmpreg1; | |
} | |
/******************************************************************************* | |
* Function Name : ADC_StructInit | |
* Description : Fills each ADC_InitStruct member with its default value. | |
* Input : ADC_InitStruct : pointer to a ADC_InitTypeDef structure | |
* which will be initialized. | |
* Output : None | |
* Return : None | |
*******************************************************************************/ | |
void ADC_StructInit(ADC_InitTypeDef* ADC_InitStruct) | |
{ | |
/* Reset ADC init structure parameters values */ | |
/* Initialize the ADC_Mode member */ | |
ADC_InitStruct->ADC_Mode = ADC_Mode_Independent; | |
/* initialize the ADC_ScanConvMode member */ | |
ADC_InitStruct->ADC_ScanConvMode = DISABLE; | |
/* Initialize the ADC_ContinuousConvMode member */ | |
ADC_InitStruct->ADC_ContinuousConvMode = DISABLE; | |
/* Initialize the ADC_ExternalTrigConv member */ | |
ADC_InitStruct->ADC_ExternalTrigConv = ADC_ExternalTrigConv_T1_CC1; | |
/* Initialize the ADC_DataAlign member */ | |
ADC_InitStruct->ADC_DataAlign = ADC_DataAlign_Right; | |
/* Initialize the ADC_NbrOfChannel member */ | |
ADC_InitStruct->ADC_NbrOfChannel = 1; | |
} | |
/******************************************************************************* | |
* Function Name : ADC_Cmd | |
* Description : Enables or disables the specified ADC peripheral. | |
* Input : - ADCx: where x can be 1 or 2 to select the ADC peripheral. | |
* - NewState: new state of the ADCx peripheral. This parameter | |
* can be: ENABLE or DISABLE. | |
* Output : None | |
* Return : None | |
*******************************************************************************/ | |
void ADC_Cmd(ADC_TypeDef* ADCx, FunctionalState NewState) | |
{ | |
/* Check the parameters */ | |
assert(IS_FUNCTIONAL_STATE(NewState)); | |
if (NewState != DISABLE) | |
{ | |
/* Set the ADON bit to wake up the ADC from power down mode */ | |
ADCx->CR2 |= CR2_ADON_Set; | |
} | |
else | |
{ | |
/* Disable the selected ADC peripheral */ | |
ADCx->CR2 &= CR2_ADON_Reset; | |
} | |
} | |
/******************************************************************************* | |
* Function Name : ADC_DMACmd | |
* Description : Enables or disables the specified ADC DMA request. | |
* Input : - ADCx: where x can be 1 or 2 to select the ADC peripheral. | |
* - NewState: new state of the selected ADC DMA transfer. | |
* This parameter can be: ENABLE or DISABLE. | |
* Output : None | |
* Return : None | |
*******************************************************************************/ | |
void ADC_DMACmd(ADC_TypeDef* ADCx, FunctionalState NewState) | |
{ | |
/* Check the parameters */ | |
assert(IS_FUNCTIONAL_STATE(NewState)); | |
if (NewState != DISABLE) | |
{ | |
/* Enable the selected ADC DMA request */ | |
ADCx->CR2 |= CR2_DMA_Set; | |
} | |
else | |
{ | |
/* Disable the selected ADC DMA request */ | |
ADCx->CR2 &= CR2_DMA_Reset; | |
} | |
} | |
/******************************************************************************* | |
* Function Name : ADC_ITConfig | |
* Description : Enables or disables the specified ADC interrupts. | |
* Input : - ADCx: where x can be 1 or 2 to select the ADC peripheral. | |
* - ADC_IT: specifies the ADC interrupts sources to be enabled | |
* or disabled. | |
* This parameter can be any combination of the following values: | |
* - 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: new state of the specified ADC interrupts. | |
* This parameter can be: ENABLE or DISABLE. | |
* Output : None | |
* Return : None | |
*******************************************************************************/ | |
void ADC_ITConfig(ADC_TypeDef* ADCx, u16 ADC_IT, FunctionalState NewState) | |
{ | |
u8 itmask = 0; | |
/* Check the parameters */ | |
assert(IS_FUNCTIONAL_STATE(NewState)); | |
assert(IS_ADC_IT(ADC_IT)); | |
/* Get the ADC IT index */ | |
itmask = (u8)ADC_IT; | |
if (NewState != DISABLE) | |
{ | |
/* Enable the selected ADC interrupts */ | |
ADCx->CR1 |= itmask; | |
} | |
else | |
{ | |
/* Disable the selected ADC interrupts */ | |
ADCx->CR1 &= (~(u32)itmask); | |
} | |
} | |
/******************************************************************************* | |
* Function Name : ADC_ResetCalibration | |
* Description : Resets the ADC calibration registers. | |
* Input : - ADCx: where x can be 1 or 2 to select the ADC peripheral. | |
* Output : None | |
* Return : None | |
*******************************************************************************/ | |
void ADC_ResetCalibration(ADC_TypeDef* ADCx) | |
{ | |
/* Resets the selected ADC calibartion registers */ | |
ADCx->CR2 |= CR2_RSTCAL_Set; | |
} | |
/******************************************************************************* | |
* Function Name : ADC_GetResetCalibrationStatus | |
* Description : Gets the ADC reset calibration registers status. | |
* Input : - ADCx: where x can be 1 or 2 to select the ADC peripheral. | |
* Output : None | |
* Return : The new state of ADC Reset Calibration registers (SET or RESET). | |
*******************************************************************************/ | |
FlagStatus ADC_GetResetCalibrationStatus(ADC_TypeDef* ADCx) | |
{ | |
FlagStatus bitstatus = RESET; | |
/* Check the status of RSTCAL bit */ | |
if ((ADCx->CR2 & CR2_RSTCAL_Set) != (u16)RESET) | |
{ | |
/* RSTCAL bit is set */ | |
bitstatus = SET; | |
} | |
else | |
{ | |
/* RSTCAL bit is reset */ | |
bitstatus = RESET; | |
} | |
/* Return the RSTCAL bit status */ | |
return bitstatus; | |
} | |
/******************************************************************************* | |
* Function Name : ADC_StartCalibration | |
* Description : Starts the calibration process. | |
* Input : - ADCx: where x can be 1 or 2 to select the ADC peripheral. | |
* Output : None | |
* Return : None | |
*******************************************************************************/ | |
void ADC_StartCalibration(ADC_TypeDef* ADCx) | |
{ | |
/* Enable the selected ADC calibration process */ | |
ADCx->CR2 |= CR2_CAL_Set; | |
} | |
/******************************************************************************* | |
* Function Name : ADC_GetCalibrationStatus | |
* Description : Gets the ADC calibration status. | |
* Input : - ADCx: where x can be 1 or 2 to select the ADC peripheral. | |
* Output : None | |
* Return : The new state of ADC calibration (SET or RESET). | |
*******************************************************************************/ | |
FlagStatus ADC_GetCalibrationStatus(ADC_TypeDef* ADCx) | |
{ | |
FlagStatus bitstatus = RESET; | |
/* Check the status of CAL bit */ | |
if ((ADCx->CR2 & CR2_CAL_Set) != (u16)RESET) | |
{ | |
/* CAL bit is set: calibration on going */ | |
bitstatus = SET; | |
} | |
else | |
{ | |
/* CAL bit is reset: end of calibration */ | |
bitstatus = RESET; | |
} | |
/* Return the CAL bit status */ | |
return bitstatus; | |
} | |
/******************************************************************************* | |
* Function Name : ADC_SoftwareStartConvCmd | |
* Description : Enables or disables the ADC software start conversion . | |
* Input : - ADCx: where x can be 1 or 2 to select the ADC peripheral. | |
* - NewState: new state of the selected ADC software start conversion. | |
* This parameter can be: ENABLE or DISABLE. | |
* Output : None | |
* Return : None | |
*******************************************************************************/ | |
void ADC_SoftwareStartConvCmd(ADC_TypeDef* ADCx, FunctionalState NewState) | |
{ | |
/* Check the parameters */ | |
assert(IS_FUNCTIONAL_STATE(NewState)); | |
if (NewState != DISABLE) | |
{ | |
/* Enable the selected ADC conversion on external event */ | |
/* Starts the selected ADC conversion */ | |
ADCx->CR2 |= CR2_EXTTRIG_SWSTRT_Set; | |
} | |
else | |
{ | |
/* Stops the selected ADC conversion */ | |
/* Disable the selected ADC conversion on external event */ | |
ADCx->CR2 &= CR2_EXTTRIG_SWSTRT_Reset; | |
} | |
} | |
/******************************************************************************* | |
* Function Name : ADC_GetSoftwareStartConvStatus | |
* Description : Gets the ADC Software start conversion Status. | |
* Input : - ADCx: where x can be 1 or 2 to select the ADC peripheral. | |
* Output : None | |
* Return : The new state of ADC software start conversion (SET or RESET). | |
*******************************************************************************/ | |
FlagStatus ADC_GetSoftwareStartConvStatus(ADC_TypeDef* ADCx) | |
{ | |
FlagStatus bitstatus = RESET; | |
/* Check the status of SWSTRT bit */ | |
if ((ADCx->CR2 & CR2_SWSTRT_Set) != (u32)RESET) | |
{ | |
/* SWSTRT bit is set */ | |
bitstatus = SET; | |
} | |
else | |
{ | |
/* SWSTRT bit is reset */ | |
bitstatus = RESET; | |
} | |
/* Return the SWSTRT bit status */ | |
return bitstatus; | |
} | |
/******************************************************************************* | |
* Function Name : ADC_DiscModeChannelCountConfig | |
* Description : Configures the discontinuous mode for the selected ADC regular | |
* group channel. | |
* Input : - ADCx: where x can be 1 or 2 to select the ADC peripheral. | |
* - Number: specifies the discontinuous mode regular channel | |
* count value. This mumber must be between 1 and 8. | |
* Output : None | |
* Return : None | |
*******************************************************************************/ | |
void ADC_DiscModeChannelCountConfig(ADC_TypeDef* ADCx, u8 Number) | |
{ | |
u32 tmpreg1 = 0; | |
u8 tmpreg2 = 0; | |
/* Check the parameters */ | |
assert(IS_ADC_REGULAR_DISC_NUMBER(Number)); | |
/* Get the old register value */ | |
tmpreg1 = ADCx->CR1; | |
/* Clear the old discontinuous mode channel count */ | |
tmpreg1 &= CR1_DISCNUM_Reset; | |
/* Set the discontinuous mode channel count */ | |
tmpreg2 = Number - 1; | |
tmpreg1 |= ((u32)tmpreg2 << 13); | |
/* Store the new register value */ | |
ADCx->CR1 = tmpreg1; | |
} | |
/******************************************************************************* | |
* Function Name : ADC_DiscModeCmd | |
* Description : Enables or disables the discontinuous mode on regular group | |
* channel for the specified ADC | |
* Input : - ADCx: where x can be 1 or 2 to select the ADC peripheral. | |
* - NewState: new state of the selected ADC discontinuous mode | |
* on regular group channel. | |
* This parameter can be: ENABLE or DISABLE. | |
* Output : None | |
* Return : None | |
*******************************************************************************/ | |
void ADC_DiscModeCmd(ADC_TypeDef* ADCx, FunctionalState NewState) | |
{ | |
/* Check the parameters */ | |
assert(IS_FUNCTIONAL_STATE(NewState)); | |
if (NewState != DISABLE) | |
{ | |
/* Enable the selected ADC regular discontinuous mode */ | |
ADCx->CR1 |= CR1_DISCEN_Set; | |
} | |
else | |
{ | |
/* Disable the selected ADC regular discontinuous mode */ | |
ADCx->CR1 &= CR1_DISCEN_Reset; | |
} | |
} | |
/******************************************************************************* | |
* Function Name : ADC_RegularChannelConfig | |
* Description : Configures for the selected ADC regular channel its corresponding | |
* rank in the sequencer and its sample time. | |
* Input : - ADCx: where x can be 1 or 2 to select the ADC peripheral. | |
* - ADC_Channel: the ADC channel to configure. | |
* This parameter can be one of the following values: | |
* - 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_8: ADC Channel8 selected | |
* - ADC_Channel_9: ADC Channel9 selected | |
* - ADC_Channel_10: ADC Channel10 selected | |
* - ADC_Channel_11: ADC Channel11 selected | |
* - ADC_Channel_12: ADC Channel12 selected | |
* - ADC_Channel_13: ADC Channel13 selected | |
* - ADC_Channel_14: ADC Channel14 selected | |
* - ADC_Channel_15: ADC Channel15 selected | |
* - ADC_Channel_16: ADC Channel16 selected | |
* - ADC_Channel_17: ADC Channel17 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. | |
* This parameter can be one of the following values: | |
* - ADC_SampleTime_1Cycles5: Sample time equal to 1.5 cycles | |
* - ADC_SampleTime_7Cycles5: Sample time equal to 7.5 cycles | |
* - ADC_SampleTime_13Cycles5: Sample time equal to 13.5 cycles | |
* - ADC_SampleTime_28Cycles5: Sample time equal to 28.5 cycles | |
* - ADC_SampleTime_41Cycles5: Sample time equal to 41.5 cycles | |
* - ADC_SampleTime_55Cycles5: Sample time equal to 55.5 cycles | |
* - ADC_SampleTime_71Cycles5: Sample time equal to 71.5 cycles | |
* - ADC_SampleTime_239Cycles5: Sample time equal to 239.5 cycles | |
* Output : None | |
* Return : None | |
*******************************************************************************/ | |
void ADC_RegularChannelConfig(ADC_TypeDef* ADCx, u8 ADC_Channel, u8 Rank, u8 ADC_SampleTime) | |
{ | |
u32 tmpreg1 = 0, tmpreg2 = 0; | |
/* Check the parameters */ | |
assert(IS_ADC_CHANNEL(ADC_Channel)); | |
assert(IS_ADC_REGULAR_RANK(Rank)); | |
assert(IS_ADC_SAMPLE_TIME(ADC_SampleTime)); | |
/* if ADC_Channel_10 ... ADC_Channel_17 is selected */ | |
if (ADC_Channel > ADC_Channel_9) | |
{ | |
/* Get the old register value */ | |
tmpreg1 = ADCx->SMPR1; | |
/* Calculate the mask to clear */ | |
tmpreg2 = (u32)SMPR1_SMP_Set << (3 * (ADC_Channel - 10)); | |
/* Clear the old discontinuous mode channel count */ | |
tmpreg1 &= ~tmpreg2; | |
/* Calculate the mask to set */ | |
tmpreg2 = (u32)ADC_SampleTime << (3 * (ADC_Channel - 10)); | |
/* Set the discontinuous mode channel count */ | |
tmpreg1 |= tmpreg2; | |
/* Store the new register value */ | |
ADCx->SMPR1 = tmpreg1; | |
} | |
else /* ADC_Channel include in ADC_Channel_[0..9] */ | |
{ | |
/* Get the old register value */ | |
tmpreg1 = ADCx->SMPR2; | |
/* Calculate the mask to clear */ | |
tmpreg2 = (u32)SMPR2_SMP_Set << (3 * ADC_Channel); | |
/* Clear the old discontinuous mode channel count */ | |
tmpreg1 &= ~tmpreg2; | |
/* Calculate the mask to set */ | |
tmpreg2 = (u32)ADC_SampleTime << (3 * ADC_Channel); | |
/* Set the discontinuous mode channel count */ | |
tmpreg1 |= tmpreg2; | |
/* Store the new register value */ | |
ADCx->SMPR2 = tmpreg1; | |
} | |
/* For Rank 1 to 6 */ | |
if (Rank < 7) | |
{ | |
/* Get the old register value */ | |
tmpreg1 = ADCx->SQR3; | |
/* Calculate the mask to clear */ | |
tmpreg2 = (u32)SQR3_SQ_Set << (5 * (Rank - 1)); | |
/* Clear the old SQx bits for the selected rank */ | |
tmpreg1 &= ~tmpreg2; | |
/* Calculate the mask to set */ | |
tmpreg2 = (u32)ADC_Channel << (5 * (Rank - 1)); | |
/* Set the SQx bits for the selected rank */ | |
tmpreg1 |= tmpreg2; | |
/* Store the new register value */ | |
ADCx->SQR3 = tmpreg1; | |
} | |
/* For Rank 7 to 12 */ | |
else if (Rank < 13) | |
{ | |
/* Get the old register value */ | |
tmpreg1 = ADCx->SQR2; | |
/* Calculate the mask to clear */ | |
tmpreg2 = (u32)SQR2_SQ_Set << (5 * (Rank - 7)); | |
/* Clear the old SQx bits for the selected rank */ | |
tmpreg1 &= ~tmpreg2; | |
/* Calculate the mask to set */ | |
tmpreg2 = (u32)ADC_Channel << (5 * (Rank - 7)); | |
/* Set the SQx bits for the selected rank */ | |
tmpreg1 |= tmpreg2; | |
/* Store the new register value */ | |
ADCx->SQR2 = tmpreg1; | |
} | |
/* For Rank 13 to 16 */ | |
else | |
{ | |
/* Get the old register value */ | |
tmpreg1 = ADCx->SQR1; | |
/* Calculate the mask to clear */ | |
tmpreg2 = (u32)SQR1_SQ_Set << (5 * (Rank - 13)); | |
/* Clear the old SQx bits for the selected rank */ | |
tmpreg1 &= ~tmpreg2; | |
/* Calculate the mask to set */ | |
tmpreg2 = (u32)ADC_Channel << (5 * (Rank - 13)); | |
/* Set the SQx bits for the selected rank */ | |
tmpreg1 |= tmpreg2; | |
/* Store the new register value */ | |
ADCx->SQR1 = tmpreg1; | |
} | |
} | |
/******************************************************************************* | |
* Function Name : ADC_ExternalTrigConvCmd | |
* Description : Enables or disables the ADCx conversion through external trigger. | |
* Input : - ADCx: where x can be 1 or 2 to select the ADC peripheral. | |
* - NewState: new state of the selected ADC external trigger | |
* start of conversion. | |
* This parameter can be: ENABLE or DISABLE. | |
* Output : None | |
* Return : None | |
*******************************************************************************/ | |
void ADC_ExternalTrigConvCmd(ADC_TypeDef* ADCx, FunctionalState NewState) | |
{ | |
/* Check the parameters */ | |
assert(IS_FUNCTIONAL_STATE(NewState)); | |
if (NewState != DISABLE) | |
{ | |
/* Enable the selected ADC conversion on external event */ | |
ADCx->CR2 |= CR2_EXTTRIG_Set; | |
} | |
else | |
{ | |
/* Disable the selected ADC conversion on external event */ | |
ADCx->CR2 &= CR2_EXTTRIG_Reset; | |
} | |
} | |
/******************************************************************************* | |
* Function Name : ADC_GetConversionValue | |
* Description : Returns the last ADC conversion result data for regular channel. | |
* Input : - ADCx: where x can be 1 or 2 to select the ADC peripheral. | |
* Output : None | |
* Return : The Data conversion value. | |
*******************************************************************************/ | |
u16 ADC_GetConversionValue(ADC_TypeDef* ADCx) | |
{ | |
/* Return the selected ADC conversion value */ | |
return (u16) ADCx->DR; | |
} | |
/******************************************************************************* | |
* Function Name : ADC_GetDualModeConversionValue | |
* Description : Returns the last ADCs conversion result data in dual mode. | |
* Output : None | |
* Return : The Data conversion value. | |
*******************************************************************************/ | |
u32 ADC_GetDualModeConversionValue(void) | |
{ | |
/* Return the dual mode conversion value */ | |
return ADC1->DR; | |
} | |
/******************************************************************************* | |
* Function Name : ADC_AutoInjectedConvCmd | |
* Description : Enables or disables the automatic injected group conversion | |
* after regular one. | |
* Input : - ADCx: where x can be 1 or 2 to select the ADC peripheral. | |
* - NewState: new state of the selected ADC auto injected | |
* conversion | |
* This parameter can be: ENABLE or DISABLE. | |
* Output : None | |
* Return : None | |
*******************************************************************************/ | |
void ADC_AutoInjectedConvCmd(ADC_TypeDef* ADCx, FunctionalState NewState) | |
{ | |
/* Check the parameters */ | |
assert(IS_FUNCTIONAL_STATE(NewState)); | |
if (NewState != DISABLE) | |
{ | |
/* Enable the selected ADC automatic injected group conversion */ | |
ADCx->CR1 |= CR1_JAUTO_Set; | |
} | |
else | |
{ | |
/* Disable the selected ADC automatic injected group conversion */ | |
ADCx->CR1 &= CR1_JAUTO_Reset; | |
} | |
} | |
/******************************************************************************* | |
* Function Name : ADC_InjectedDiscModeCmd | |
* Description : Enables or disables the discontinuous mode for injected group | |
* channel for the specified ADC | |
* Input : - ADCx: where x can be 1 or 2 to select the ADC peripheral. | |
* - NewState: new state of the selected ADC discontinuous mode | |
* on injected group channel. | |
* This parameter can be: ENABLE or DISABLE. | |
* Output : None | |
* Return : None | |
*******************************************************************************/ | |
void ADC_InjectedDiscModeCmd(ADC_TypeDef* ADCx, FunctionalState NewState) | |
{ | |
/* Check the parameters */ | |
assert(IS_FUNCTIONAL_STATE(NewState)); | |
if (NewState != DISABLE) | |
{ | |
/* Enable the selected ADC injected discontinuous mode */ | |
ADCx->CR1 |= CR1_JDISCEN_Set; | |
} | |
else | |
{ | |
/* Disable the selected ADC injected discontinuous mode */ | |
ADCx->CR1 &= CR1_JDISCEN_Reset; | |
} | |
} | |
/******************************************************************************* | |
* Function Name : ADC_ExternalTrigInjectedConvConfig | |
* Description : Configures the external trigger for injected channels conversion. | |
* Input : - ADCx: where x can be 1 or 2 to select the ADC peripheral. | |
* - ADC_ExternalTrigInjecConv: specifies the ADC trigger to | |
* start injected conversion. | |
* This parameter can be one of the following values: | |
* - ADC_ExternalTrigInjecConv_T1_TRGO: Timer1 TRGO event | |
* selected | |
* - ADC_ExternalTrigInjecConv_T1_CC4: Timer1 capture | |
* compare4 selected | |
* - ADC_ExternalTrigInjecConv_T2_TRGO: Timer2 TRGO event | |
* selected | |
* - ADC_ExternalTrigInjecConv_T2_CC1: Timer2 capture | |
* compare1 selected | |
* - ADC_ExternalTrigInjecConv_T3_CC4: Timer3 capture | |
* compare4 selected | |
* - ADC_ExternalTrigInjecConv_T4_TRGO: Timer4 TRGO event | |
* selected | |
* - ADC_ExternalTrigInjecConv_Ext_Interrupt15: External | |
* interrupt 15 event selected | |
* - ADC_ExternalTrigInjecConv_None: Injected conversion | |
* started by software and not by external trigger | |
* Output : None | |
* Return : None | |
*******************************************************************************/ | |
void ADC_ExternalTrigInjectedConvConfig(ADC_TypeDef* ADCx, u32 ADC_ExternalTrigInjecConv) | |
{ | |
u32 tmpreg = 0; | |
/* Check the parameters */ | |
assert(IS_ADC_EXT_INJEC_TRIG(ADC_ExternalTrigInjecConv)); | |
/* Get the old register value */ | |
tmpreg = ADCx->CR2; | |
/* Clear the old external event selection for injected group */ | |
tmpreg &= CR2_JEXTSEL_Reset; | |
/* Set the external event selection for injected group */ | |
tmpreg |= ADC_ExternalTrigInjecConv; | |
/* Store the new register value */ | |
ADCx->CR2 = tmpreg; | |
} | |
/******************************************************************************* | |
* Function Name : ADC_ExternalTrigInjectedConvCmd | |
* Description : Enables or disables the ADCx injected channels conversion | |
* through external trigger | |
* Input : - ADCx: where x can be 1 or 2 to select the ADC peripheral. | |
* - NewState: new state of the selected ADC external trigger | |
* start of injected conversion. | |
* This parameter can be: ENABLE or DISABLE. | |
* Output : None | |
* Return : None | |
*******************************************************************************/ | |
void ADC_ExternalTrigInjectedConvCmd(ADC_TypeDef* ADCx, FunctionalState NewState) | |
{ | |
/* Check the parameters */ | |
assert(IS_FUNCTIONAL_STATE(NewState)); | |
if (NewState != DISABLE) | |
{ | |
/* Enable the selected ADC external event selection for injected group */ | |
ADCx->CR2 |= CR2_JEXTTRIG_Set; | |
} | |
else | |
{ | |
/* Disable the selected ADC external event selection for injected group */ | |
ADCx->CR2 &= CR2_JEXTTRIG_Reset; | |
} | |
} | |
/******************************************************************************* | |
* Function Name : ADC_SoftwareStartInjectedConvCmd | |
* Description : Enables or disables the start of the injected channels conversion. | |
* Input : - ADCx: where x can be 1 or 2 to select the ADC peripheral. | |
* - NewState: new state of the selected ADC software start | |
* injected conversion. | |
* This parameter can be: ENABLE or DISABLE. | |
* Output : None | |
* Return : None | |
*******************************************************************************/ | |
void ADC_SoftwareStartInjectedConvCmd(ADC_TypeDef* ADCx, FunctionalState NewState) | |
{ | |
/* Check the parameters */ | |
assert(IS_FUNCTIONAL_STATE(NewState)); | |
if (NewState != DISABLE) | |
{ | |
/* Enable the selected ADC external event selection for injected group */ | |
/* Starts the selected ADC injected conversion */ | |
ADCx->CR2 |= CR2_JEXTTRIG_JSWSTRT_Set; | |
} | |
else | |
{ | |
/* Stops the selected ADC injected conversion */ | |
/* Disable the selected ADC external event selection for injected group */ | |
ADCx->CR2 &= CR2_JEXTTRIG_JSWSTRT_Reset; | |
} | |
} | |
/******************************************************************************* | |
* Function Name : ADC_GetSoftwareStartInjectedConvCmdStatus | |
* Description : Gets the ADC Software start injected conversion Status. | |
* Input : - ADCx: where x can be 1 or 2 to select the ADC peripheral. | |
* Output : None | |
* Return : The new state of ADC software start injected conversion (SET or RESET). | |
*******************************************************************************/ | |
FlagStatus ADC_GetSoftwareStartInjectedConvCmdStatus(ADC_TypeDef* ADCx) | |
{ | |
FlagStatus bitstatus = RESET; | |
/* Check the status of JSWSTRT bit */ | |
if ((ADCx->CR2 & CR2_JSWSTRT_Set) != (u32)RESET) | |
{ | |
/* JSWSTRT bit is set */ | |
bitstatus = SET; | |
} | |
else | |
{ | |
/* JSWSTRT bit is reset */ | |
bitstatus = RESET; | |
} | |
/* Return the JSWSTRT bit status */ | |
return bitstatus; | |
} | |
/******************************************************************************* | |
* Function Name : ADC_InjectedChannelConfig | |
* Description : Configures for the selected ADC injected channel its corresponding | |
* rank in the sequencer and its sample time. | |
* Input : - ADCx: where x can be 1 or 2 to select the ADC peripheral. | |
* - ADC_Channel: the ADC channel to configure. | |
* This parameter can be one of the following values: | |
* - 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_8: ADC Channel8 selected | |
* - ADC_Channel_9: ADC Channel9 selected | |
* - ADC_Channel_10: ADC Channel10 selected | |
* - ADC_Channel_11: ADC Channel11 selected | |
* - ADC_Channel_12: ADC Channel12 selected | |
* - ADC_Channel_13: ADC Channel13 selected | |
* - ADC_Channel_14: ADC Channel14 selected | |
* - ADC_Channel_15: ADC Channel15 selected | |
* - ADC_Channel_16: ADC Channel16 selected | |
* - ADC_Channel_17: ADC Channel17 selected | |
* - Rank: The rank in the injected group sequencer. This parameter | |
* must be between 1 to 4. | |
* - ADC_SampleTime: The sample time value to be set for the | |
* selected channel. | |
* This parameter can be one of the following values: | |
* - ADC_SampleTime_1Cycles5: Sample time equal to 1.5 cycles | |
* - ADC_SampleTime_7Cycles5: Sample time equal to 7.5 cycles | |
* - ADC_SampleTime_13Cycles5: Sample time equal to 13.5 cycles | |
* - ADC_SampleTime_28Cycles5: Sample time equal to 28.5 cycles | |
* - ADC_SampleTime_41Cycles5: Sample time equal to 41.5 cycles | |
* - ADC_SampleTime_55Cycles5: Sample time equal to 55.5 cycles | |
* - ADC_SampleTime_71Cycles5: Sample time equal to 71.5 cycles | |
* - ADC_SampleTime_239Cycles5: Sample time equal to 239.5 cycles | |
* Output : None | |
* Return : None | |
*******************************************************************************/ | |
void ADC_InjectedChannelConfig(ADC_TypeDef* ADCx, u8 ADC_Channel, u8 Rank, u8 ADC_SampleTime) | |
{ | |
u32 tmpreg1 = 0, tmpreg2 = 0; | |
u8 tmpreg3 = 0; | |
/* Check the parameters */ | |
assert(IS_ADC_CHANNEL(ADC_Channel)); | |
assert(IS_ADC_INJECTED_RANK(Rank)); | |
assert(IS_ADC_SAMPLE_TIME(ADC_SampleTime)); | |
/* if ADC_Channel_10 ... ADC_Channel_17 is selected */ | |
if (ADC_Channel > ADC_Channel_9) | |
{ | |
/* Get the old register value */ | |
tmpreg1 = ADCx->SMPR1; | |
/* Calculate the mask to clear */ | |
tmpreg2 = (u32)SMPR1_SMP_Set << (3*(ADC_Channel - 10)); | |
/* Clear the old discontinuous mode channel count */ | |
tmpreg1 &= ~tmpreg2; | |
/* Calculate the mask to set */ | |
tmpreg2 = (u32)ADC_SampleTime << (3*(ADC_Channel - 10)); | |
/* Set the discontinuous mode channel count */ | |
tmpreg1 |= tmpreg2; | |
/* Store the new register value */ | |
ADCx->SMPR1 = tmpreg1; | |
} | |
else /* ADC_Channel include in ADC_Channel_[0..9] */ | |
{ | |
/* Get the old register value */ | |
tmpreg1 = ADCx->SMPR2; | |
/* Calculate the mask to clear */ | |
tmpreg2 = (u32)SMPR2_SMP_Set << (3 * ADC_Channel); | |
/* Clear the old discontinuous mode channel count */ | |
tmpreg1 &= ~tmpreg2; | |
/* Calculate the mask to set */ | |
tmpreg2 = (u32)ADC_SampleTime << (3 * ADC_Channel); | |
/* Set the discontinuous mode channel count */ | |
tmpreg1 |= tmpreg2; | |
/* Store the new register value */ | |
ADCx->SMPR2 = tmpreg1; | |
} | |
/* Rank configuration */ | |
/* Get the old register value */ | |
tmpreg1 = ADCx->JSQR; | |
/* Get JL value: Number = JL+1 */ | |
tmpreg3 = (u8)((tmpreg1 & (u32)~JSQR_JL_Reset)>> 20); | |
/* Calculate the mask to clear: ((Rank-1)+(4-JL-1)) */ | |
tmpreg2 = (u32)JSQR_JSQ_Set << (5 * ((Rank + 3) - (tmpreg3 + 1))); | |
/* Clear the old JSQx bits for the selected rank */ | |
tmpreg1 &= ~tmpreg2; | |
/* Calculate the mask to set: ((Rank-1)+(4-JL-1)) */ | |
tmpreg2 = (u32)ADC_Channel << (5 * ((Rank + 3) - (tmpreg3 + 1))); | |
/* Set the JSQx bits for the selected rank */ | |
tmpreg1 |= tmpreg2; | |
/* Store the new register value */ | |
ADCx->JSQR = tmpreg1; | |
} | |
/******************************************************************************* | |
* Function Name : ADC_InjectedSequencerLengthConfig | |
* Description : Configures the sequencer for injected channels | |
* Input : - ADCx: where x can be 1 or 2 to select the ADC peripheral. | |
* - Length: The sequencer length. | |
* This parameter must be a number between 1 to 4. | |
* Output : None | |
* Return : None | |
*******************************************************************************/ | |
void ADC_InjectedSequencerLengthConfig(ADC_TypeDef* ADCx, u8 Length) | |
{ | |
u32 tmpreg1 = 0; | |
u8 tmpreg2 = 0; | |
/* Check the parameters */ | |
assert(IS_ADC_INJECTED_LENGTH(Length)); | |
/* Get the old register value */ | |
tmpreg1 = ADCx->JSQR; | |
/* Clear the old injected sequnence lenght JL bits */ | |
tmpreg1 &= JSQR_JL_Reset; | |
/* Set the injected sequnence lenght JL bits */ | |
tmpreg2 = Length - 1; | |
tmpreg1 |= (u32)tmpreg2 << 20; | |
/* Store the new register value */ | |
ADCx->JSQR = tmpreg1; | |
} | |
/******************************************************************************* | |
* Function Name : ADC_SetInjectedOffset | |
* Description : Set the injected channels conversion value offset | |
* Input : - ADCx: where x can be 1 or 2 to select the ADC peripheral. | |
* - ADC_InjectedChannel: the ADC injected channel to set its | |
* offset. | |
* This parameter can be one of the following values: | |
* - ADC_InjectedChannel_1: Injected Channel1 selected | |
* - ADC_InjectedChannel_2: Injected Channel2 selected | |
* - ADC_InjectedChannel_3: Injected Channel3 selected | |
* - ADC_InjectedChannel_4: Injected Channel4 selected | |
* Output : None | |
* Return : None | |
*******************************************************************************/ | |
void ADC_SetInjectedOffset(ADC_TypeDef* ADCx, u8 ADC_InjectedChannel, u16 Offset) | |
{ | |
/* Check the parameters */ | |
assert(IS_ADC_INJECTED_CHANNEL(ADC_InjectedChannel)); | |
assert(IS_ADC_OFFSET(Offset)); | |
/* Set the selected injected channel data offset */ | |
*((u32 *)((*(u32*)&ADCx) + ADC_InjectedChannel)) = (u32)Offset; | |
} | |
/******************************************************************************* | |
* Function Name : ADC_GetInjectedConversionValue | |
* Description : Returns the ADC conversion result data for the selected | |
* injected channel | |
* Input : - ADCx: where x can be 1 or 2 to select the ADC peripheral. | |
* - ADC_InjectedChannel: the converted ADC injected channel. | |
* This parameter can be one of the following values: | |
* - ADC_InjectedChannel_1: Injected Channel1 selected | |
* - ADC_InjectedChannel_2: Injected Channel2 selected | |
* - ADC_InjectedChannel_3: Injected Channel3 selected | |
* - ADC_InjectedChannel_4: Injected Channel4 selected | |
* Output : None | |
* Return : The Data conversion value. | |
*******************************************************************************/ | |
u16 ADC_GetInjectedConversionValue(ADC_TypeDef* ADCx, u8 ADC_InjectedChannel) | |
{ | |
/* Check the parameters */ | |
assert(IS_ADC_INJECTED_CHANNEL(ADC_InjectedChannel)); | |
/* Returns the selected injected channel conversion data value */ | |
return (u16) (*(u32*) (((*(u32*)&ADCx) + ADC_InjectedChannel + JDR_Offset))); | |
} | |
/******************************************************************************* | |
* Function Name : ADC_AnalogWatchdogCmd | |
* Description : Enables or disables the analog watchdog on single/all regular | |
* or injected channels | |
* Input : - ADCx: where x can be 1 or 2 to select the ADC peripheral. | |
* - ADC_AnalogWatchdog: the ADC analog watchdog configuration. | |
* This parameter can be one of the following values: | |
* - 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 | |
* Output : None | |
* Return : None | |
*******************************************************************************/ | |
void ADC_AnalogWatchdogCmd(ADC_TypeDef* ADCx, u32 ADC_AnalogWatchdog) | |
{ | |
u32 tmpreg = 0; | |
/* Check the parameters */ | |
assert(IS_ADC_ANALOG_WATCHDOG(ADC_AnalogWatchdog)); | |
/* Get the old register value */ | |
tmpreg = ADCx->CR1; | |
/* Clear AWDEN, AWDENJ and AWDSGL bits */ | |
tmpreg &= CR1_AWDMode_Reset; | |
/* Set the analog watchdog enable mode */ | |
tmpreg |= ADC_AnalogWatchdog; | |
/* Store the new register value */ | |
ADCx->CR1 = tmpreg; | |
} | |
/******************************************************************************* | |
* Function Name : ADC_AnalogWatchdogThresholdsConfig | |
* Description : Configures the High and low thresholds of the analog watchdog. | |
* Input : - ADCx: where x can be 1 or 2 to select the ADC peripheral. | |
* - HighThreshold: the ADC analog watchdog High threshold value. | |
* This parameter must be a 12bit value. | |
* - LowThreshold: the ADC analog watchdog Low threshold value. | |
* This parameter must be a 12bit value. | |
* Output : None | |
* Return : None | |
*******************************************************************************/ | |
void ADC_AnalogWatchdogThresholdsConfig(ADC_TypeDef* ADCx, u16 HighThreshold, | |
u16 LowThreshold) | |
{ | |
/* Check the parameters */ | |
assert(IS_ADC_THRESHOLD(HighThreshold)); | |
assert(IS_ADC_THRESHOLD(LowThreshold)); | |
/* Set the ADCx high threshold */ | |
ADCx->HTR = HighThreshold; | |
/* Set the ADCx low threshold */ | |
ADCx->LTR = LowThreshold; | |
} | |
/******************************************************************************* | |
* Function Name : ADC_AnalogWatchdogSingleChannelConfig | |
* Description : Configures the analog watchdog guarded single channel | |
* Input : - ADCx: where x can be 1 or 2 to select the ADC peripheral. | |
* - ADC_Channel: the ADC channel to configure for the analog | |
* watchdog. | |
* This parameter can be one of the following values: | |
* - 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_8: ADC Channel8 selected | |
* - ADC_Channel_9: ADC Channel9 selected | |
* - ADC_Channel_10: ADC Channel10 selected | |
* - ADC_Channel_11: ADC Channel11 selected | |
* - ADC_Channel_12: ADC Channel12 selected | |
* - ADC_Channel_13: ADC Channel13 selected | |
* - ADC_Channel_14: ADC Channel14 selected | |
* - ADC_Channel_15: ADC Channel15 selected | |
* - ADC_Channel_16: ADC Channel16 selected | |
* - ADC_Channel_17: ADC Channel17 selected | |
* Output : None | |
* Return : None | |
*******************************************************************************/ | |
void ADC_AnalogWatchdogSingleChannelConfig(ADC_TypeDef* ADCx, u8 ADC_Channel) | |
{ | |
u32 tmpreg = 0; | |
/* Check the parameters */ | |
assert(IS_ADC_CHANNEL(ADC_Channel)); | |
/* Get the old register value */ | |
tmpreg = ADCx->CR1; | |
/* Clear the Analog watchdog channel select bits */ | |
tmpreg &= CR1_AWDCH_Reset; | |
/* Set the Analog watchdog channel */ | |
tmpreg |= ADC_Channel; | |
/* Store the new register value */ | |
ADCx->CR1 = tmpreg; | |
} | |
/******************************************************************************* | |
* Function Name : ADC_TempSensorCmd | |
* Description : Enables or disables the temperature sensor. | |
* Input : - NewState: new state of the temperature sensor. | |
* This parameter can be: ENABLE or DISABLE. | |
* Output : None | |
* Return : None | |
*******************************************************************************/ | |
void ADC_TempSensorCmd(FunctionalState NewState) | |
{ | |
/* Check the parameters */ | |
assert(IS_FUNCTIONAL_STATE(NewState)); | |
if (NewState != DISABLE) | |
{ | |
/* Enable the temperature sensor */ | |
ADC1->CR2 |= CR2_TSPD_Set; | |
} | |
else | |
{ | |
/* Disable the temperature sensor */ | |
ADC1->CR2 &= CR2_TSPD_Reset; | |
} | |
} | |
/******************************************************************************* | |
* Function Name : ADC_GetFlagStatus | |
* Description : Checks whether the specified ADC flag is set or not. | |
* Input : - ADCx: where x can be 1 or 2 to select the ADC peripheral. | |
* - ADC_FLAG: specifies the flag to check. | |
* This parameter can be one of the following values: | |
* - 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 | |
* Output : None | |
* Return : The new state of ADC_FLAG (SET or RESET). | |
*******************************************************************************/ | |
FlagStatus ADC_GetFlagStatus(ADC_TypeDef* ADCx, u8 ADC_FLAG) | |
{ | |
FlagStatus bitstatus = RESET; | |
/* Check the parameters */ | |
assert(IS_ADC_GET_FLAG(ADC_FLAG)); | |
/* Check the status of the specified ADC flag */ | |
if ((ADCx->SR & ADC_FLAG) != (u8)RESET) | |
{ | |
/* ADC_FLAG is set */ | |
bitstatus = SET; | |
} | |
else | |
{ | |
/* ADC_FLAG is reset */ | |
bitstatus = RESET; | |
} | |
/* Return the ADC_FLAG status */ | |
return bitstatus; | |
} | |
/******************************************************************************* | |
* Function Name : ADC_ClearFlag | |
* Description : Clears the ADCx's pending flags. | |
* Input : - ADCx: where x can be 1 or 2 to select the ADC peripheral. | |
* - ADC_FLAG: specifies the flag to clear. | |
* This parameter can be any combination of the following values: | |
* - 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 | |
* Output : None | |
* Return : None | |
*******************************************************************************/ | |
void ADC_ClearFlag(ADC_TypeDef* ADCx, u8 ADC_FLAG) | |
{ | |
/* Check the parameters */ | |
assert(IS_ADC_CLEAR_FLAG(ADC_FLAG)); | |
/* Clear the selected ADC flags */ | |
ADCx->SR &= ~(u32)ADC_FLAG; | |
} | |
/******************************************************************************* | |
* Function Name : ADC_GetITStatus | |
* Description : Checks whether the specified ADC interrupt has occurred or not. | |
* Input : - ADCx: where x can be 1 or 2 to select the ADC peripheral. | |
* - ADC_IT: specifies the ADC interrupt source to check. | |
* This parameter can be one of the following values: | |
* - ADC_IT_EOC: End of conversion interrupt mask | |
* - ADC_IT_AWD: Analog watchdog interrupt mask | |
* - ADC_IT_JEOC: End of injected conversion interrupt mask | |
* Output : None | |
* Return : The new state of ADC_IT (SET or RESET). | |
*******************************************************************************/ | |
ITStatus ADC_GetITStatus(ADC_TypeDef* ADCx, u16 ADC_IT) | |
{ | |
ITStatus bitstatus = RESET; | |
u8 itmask = 0, enablestatus; | |
/* Check the parameters */ | |
assert(IS_ADC_GET_IT(ADC_IT)); | |
/* Get the ADC IT index */ | |
itmask = (u8)(ADC_IT >> 8); | |
/* Get the ADC_IT enable bit status */ | |
enablestatus = (ADCx->CR1 & (u8)ADC_IT) ; | |
/* Check the status of the specified ADC interrupt */ | |
if (((ADCx->SR & itmask) != (u8)RESET) && enablestatus) | |
{ | |
/* ADC_IT is set */ | |
bitstatus = SET; | |
} | |
else | |
{ | |
/* ADC_IT is reset */ | |
bitstatus = RESET; | |
} | |
/* Return the ADC_IT status */ | |
return bitstatus; | |
} | |
/******************************************************************************* | |
* Function Name : ADC_ClearITPendingBit | |
* Description : Clears the ADCs interrupt pending bits. | |
* Input : - ADC_IT: specifies the ADC interrupt pending bit to clear. | |
* This parameter can be any combination of the following values: | |
* - ADC_IT_EOC: End of conversion interrupt mask | |
* - ADC_IT_AWD: Analog watchdog interrupt mask | |
* - ADC_IT_JEOC: End of injected conversion interrupt mask | |
* Output : None | |
* Return : None | |
*******************************************************************************/ | |
void ADC_ClearITPendingBit(ADC_TypeDef* ADCx, u16 ADC_IT) | |
{ | |
u8 itmask = 0; | |
/* Check the parameters */ | |
assert(IS_ADC_IT(ADC_IT)); | |
/* Get the ADC IT index */ | |
itmask = (u8)(ADC_IT >> 8); | |
/* Clear the selected ADC interrupt pending bits */ | |
ADCx->SR &= ~(u32)itmask; | |
} | |
/******************* (C) COPYRIGHT 2007 STMicroelectronics *****END OF FILE****/ |