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)   ((pAcc)->ACC_MR)
#define	ACC_StartConversion(pAcc)   ((pAcc)->ACC_CR = ACC_CR_START)
#define	ACC_SoftReset(pAcc)   ((pAcc)->ACC_CR = ACC_CR_SWRST)
#define	ACC_EnableChannel(pAcc, dwChannel)
#define	ACC_DisableChannel(pAcc, dwChannel)
#define	ACC_EnableIt(pAcc, dwMode)
#define	ACC_DisableIt(pAcc, dwMode)
#define	ACC_EnableDataReadyIt(pAcc)   ((pAcc)->ACC_IER = AT91C_ACC_DRDY)
#define	ACC_GetStatus(pAcc)   ((pAcc)->ACC_ISR)
#define	ACC_GetChannelStatus(pAcc)   ((pAcc)->ACC_CHSR)
#define	ACC_GetInterruptMaskStatus(pAcc)   ((pAcc)->ACC_IMR)
#define	ACC_GetLastConvertedData(pAcc)   ((pAcc)->ACC_LCDR)
#define	ACC_CfgAnalogCtrlReg(pAcc, dwMode)
#define	ACC_CfgExtModeReg(pAcc, extmode)
#define	ACC_GetAnalogCtrlReg(pAcc)   ((pAcc)->ACC_ACR)

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_EnableIt

#define ACC_EnableIt	(		pAcc,
			dwMode
	)

Value:

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

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
	)

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
	)

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
	)

Return the Channel Converted Data

Parameters

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