acc.h File Reference

#include "chip.h"
#include <stdint.h>
#include <assert.h>

Go to the source code of this file.

Macros
#define	ACC_SELPLUS_AD12B0   0
#define	ACC_SELPLUS_AD12B1   1
#define	ACC_SELPLUS_AD12B2   2
#define	ACC_SELPLUS_AD12B3   3
#define	ACC_SELPLUS_AD12B4   4
#define	ACC_SELPLUS_AD12B5   5
#define	ACC_SELPLUS_AD12B6   6
#define	ACC_SELPLUS_AD12B7   7
#define	ACC_SELMINUS_TS   0
#define	ACC_SELMINUS_ADVREF   1
#define	ACC_SELMINUS_DAC0   2
#define	ACC_SELMINUS_DAC1   3
#define	ACC_SELMINUS_AD12B0   4
#define	ACC_SELMINUS_AD12B1   5
#define	ACC_SELMINUS_AD12B2   6
#define	ACC_SELMINUS_AD12B3   7
#define	ACC_CfgModeReg(pAcc, mode)
#define	ACC_GetModeReg(pAcc)
#define	ACC_StartConversion(pAcc)
#define	ACC_SoftReset(pAcc)
#define	ACC_EnableChannel(pAcc, dwChannel)
#define	ACC_DisableChannel(pAcc, dwChannel)
#define	ACC_EnableIt(pAcc, dwMode)
#define	ACC_DisableIt(pAcc, dwMode)
#define	ACC_EnableDataReadyIt(pAcc)
#define	ACC_GetStatus(pAcc)
#define	ACC_GetChannelStatus(pAcc)
#define	ACC_GetInterruptMaskStatus(pAcc)
#define	ACC_GetLastConvertedData(pAcc)
#define	ACC_CfgAnalogCtrlReg(pAcc, dwMode)
#define	ACC_CfgExtModeReg(pAcc, extmode)
#define	ACC_GetAnalogCtrlReg(pAcc)

Functions
void	ACC_Configure (Acc *pAcc, uint8_t idAcc, uint8_t ucSelplus, uint8_t ucSelminus, uint16_t wAc_en, uint16_t wEdge, uint16_t wInvert)
	Initialize the ACC controller.
void	ACC_SetComparisonPair (Acc *pAcc, uint8_t ucSelplus, uint8_t ucSelminus)
uint32_t	ACC_GetComparisonResult (Acc *pAcc, uint32_t dwStatus)

Detailed Description

Purpose

Interface for configuration the Analog-to-Digital Converter (ACC) peripheral.

Usage

1. Configurate the pins for ACC
2. Initialize the ACC with ACC_Initialize().
3. Select the active channel using ACC_EnableChannel()
4. Start the conversion with ACC_StartConversion()
5. Wait the end of the conversion by polling status with ACC_GetStatus()
6. Finally, get the converted data using ACC_GetConvertedData()

Macro Definition Documentation

ACC_CfgAnalogCtrlReg

#define ACC_CfgAnalogCtrlReg	(		pAcc,
			dwMode )

Value:

    {\
    assert(((dwMode) & 0xFFFCFF3C) == 0);\
    (pAcc)->ACC_ACR = (dwMode);\
}

ACC_CfgExtModeReg

#define ACC_CfgExtModeReg	(		pAcc,
			extmode )

Value:

    {\
    assert(((extmode) & 0xFF00FFFE) == 0);\
    (pAcc)->ACC_EMR = (extmode);\
}

ACC_CfgModeReg

#define ACC_CfgModeReg	(		pAcc,
			mode )

Value:

    { \
    (pAcc)->ACC_MR = (mode);\
}

ACC_DisableChannel

#define ACC_DisableChannel	(		pAcc,
			dwChannel )

Value:

    {\
    assert(dwChannel < 16);\
    (pAcc)->ACC_CHDR = (1 << (dwChannel));\
}

ACC_DisableIt

#define ACC_DisableIt	(		pAcc,
			dwMode )

Value:

    {\
    assert(((dwMode)&0xFFF00000)== 0);\
    (pAcc)->ACC_IDR = (dwMode);\
}

ACC_EnableChannel

#define ACC_EnableChannel	(		pAcc,
			dwChannel )

Value:

    {\
    assert(dwChannel < 16);\
    (pAcc)->ACC_CHER = (1 << (dwChannel));\
}

ACC_EnableDataReadyIt

#define ACC_EnableDataReadyIt

(

pAcc

)

Value:

((pAcc)->ACC_IER = AT91C_ACC_DRDY)

ACC_EnableIt

#define ACC_EnableIt	(		pAcc,
			dwMode )

Value:

    {\
    assert(((dwMode)&0xFFF00000)== 0);\
    (pAcc)->ACC_IER = (dwMode);\
}

ACC_GetAnalogCtrlReg

#define ACC_GetAnalogCtrlReg

(

pAcc

)

Value:

((pAcc)->ACC_ACR)

ACC_GetChannelStatus

#define ACC_GetChannelStatus

(

pAcc

)

Value:

((pAcc)->ACC_CHSR)

ACC_GetInterruptMaskStatus

#define ACC_GetInterruptMaskStatus

(

pAcc

)

Value:

((pAcc)->ACC_IMR)

ACC_GetLastConvertedData

#define ACC_GetLastConvertedData

(

pAcc

)

Value:

((pAcc)->ACC_LCDR)

ACC_GetModeReg

#define ACC_GetModeReg

(

pAcc

)

Value:

((pAcc)->ACC_MR)

ACC_GetStatus

#define ACC_GetStatus

(

pAcc

)

Value:

((pAcc)->ACC_ISR)

ACC_SoftReset

#define ACC_SoftReset

(

pAcc

)

Value:

((pAcc)->ACC_CR = ACC_CR_SWRST)

ACC_StartConversion

#define ACC_StartConversion

(

pAcc

)

Value:

((pAcc)->ACC_CR = ACC_CR_START)

Function Documentation

ACC_Configure()

void ACC_Configure ( Acc * pAcc, uint8_t idAcc, uint8_t ucSelplus, uint8_t ucSelminus, uint16_t wAc_en, uint16_t wEdge, uint16_t wInvert )

extern

Initialize the ACC controller.

Parameters

pAcc	Pointer to an Acc instance.
idAcc	ACC identifier
ucSelplus	input connected to inp, 0~7
ucSelminus	input connected to inm,0~7
wAc_en	Analog comparator enabled/disabled
wEdge	CF flag triggering mode
wInvert	INVert comparator output,use pattern defined in the device header file

ACC_GetComparisonResult()

uint32_t ACC_GetComparisonResult ( Acc * pAcc, uint32_t dwStatus )

extern

Return Comparison Result

Parameters

pAcc	Pointer to an Acc instance.
dwStatus	value of ACC_ISR

ACC_SetComparisonPair()

void ACC_SetComparisonPair ( Acc * pAcc, uint8_t ucSelplus, uint8_t ucSelminus )

extern

Return the Channel Converted Data

Parameters

pAcc	Pointer to an Acc instance.
ucSelplus	input applied on ACC SELPLUS
ucSelminus	input applied on ACC SELMINUS