File content as of revision 0:84d7747641aa:

/***********************************************************************//**
 * @file        lpc17xx_adc.h
 * @brief        Contains all macro definitions and function prototypes
 *                 support for ADC firmware library on LPC17xx
 * @version        3.0
 * @date        18. June. 2010
 * @author        NXP MCU SW Application Team
 **************************************************************************
 * Software that is described herein is for illustrative purposes only
 * which provides customers with programming information regarding the
 * products. This software is supplied "AS IS" without any warranties.
 * NXP Semiconductors assumes no responsibility or liability for the
 * use of the software, conveys no license or title under any patent,
 * copyright, or mask work right to the product. NXP Semiconductors
 * reserves the right to make changes in the software without
 * notification. NXP Semiconductors also make no representation or
 * warranty that such application will be suitable for the specified
 * use without further testing or modification.
 **************************************************************************/

/* Peripheral group ----------------------------------------------------------- */
/** @defgroup ADC ADC
 * @ingroup LPC1700CMSIS_FwLib_Drivers
 * @{
 */

#ifndef LPC17XX_ADC_H_
#define LPC17XX_ADC_H_

/* Includes ------------------------------------------------------------------- */
#include <LPC17xx.h>
#include "lpc_types.h"


#ifdef __cplusplus
extern "C"
{
#endif

/* Private macros ------------------------------------------------------------- */
/** @defgroup ADC_Private_Macros ADC Private Macros
 * @{
 */

/* -------------------------- BIT DEFINITIONS ----------------------------------- */
/*********************************************************************//**
 * Macro defines for ADC  control register
 **********************************************************************/
/**  Selects which of the AD0.0:7 pins is (are) to be sampled and converted */
#define ADC_CR_CH_SEL(n)    ((1UL << n))
/**  The APB clock (PCLK) is divided by (this value plus one)
* to produce the clock for the A/D */
#define ADC_CR_CLKDIV(n)    ((n<<8))
/**  Repeated conversions A/D enable bit */
#define ADC_CR_BURST        ((1UL<<16))
/**  ADC convert in power down mode */
#define ADC_CR_PDN            ((1UL<<21))
/**  Start mask bits */
#define ADC_CR_START_MASK    ((7UL<<24))
/**  Select Start Mode */
#define ADC_CR_START_MODE_SEL(SEL)    ((SEL<<24))
/**  Start conversion now */
#define ADC_CR_START_NOW    ((1UL<<24))
/**  Start conversion when the edge selected by bit 27 occurs on P2.10/EINT0 */
#define ADC_CR_START_EINT0    ((2UL<<24))
/** Start conversion when the edge selected by bit 27 occurs on P1.27/CAP0.1 */
#define ADC_CR_START_CAP01    ((3UL<<24))
/**  Start conversion when the edge selected by bit 27 occurs on MAT0.1 */
#define ADC_CR_START_MAT01    ((4UL<<24))
/**  Start conversion when the edge selected by bit 27 occurs on MAT0.3 */
#define ADC_CR_START_MAT03    ((5UL<<24))
/**  Start conversion when the edge selected by bit 27 occurs on MAT1.0 */
#define ADC_CR_START_MAT10    ((6UL<<24))
/**  Start conversion when the edge selected by bit 27 occurs on MAT1.1 */
#define ADC_CR_START_MAT11    ((7UL<<24))
/**  Start conversion on a falling edge on the selected CAP/MAT signal */
#define ADC_CR_EDGE            ((1UL<<27))

/*********************************************************************//**
 * Macro defines for ADC Global Data register
 **********************************************************************/
/** When DONE is 1, this field contains result value of ADC conversion */
#define ADC_GDR_RESULT(n)        (((n>>4)&0xFFF))
/** These bits contain the channel from which the LS bits were converted */
#define ADC_GDR_CH(n)            (((n>>24)&0x7))
/** This bit is 1 in burst mode if the results of one or
 * more conversions was (were) lost */
#define ADC_GDR_OVERRUN_FLAG    ((1UL<<30))
/** This bit is set to 1 when an A/D conversion completes */
#define ADC_GDR_DONE_FLAG        ((1UL<<31))

/** This bits is used to mask for Channel */
#define ADC_GDR_CH_MASK        ((7UL<<24))
/*********************************************************************//**
 * Macro defines for ADC Interrupt register
 **********************************************************************/
/** These bits allow control over which A/D channels generate
 * interrupts for conversion completion */
#define ADC_INTEN_CH(n)            ((1UL<<n))
/** When 1, enables the global DONE flag in ADDR to generate an interrupt */
#define ADC_INTEN_GLOBAL        ((1UL<<8))

/*********************************************************************//**
 * Macro defines for ADC Data register
 **********************************************************************/
/** When DONE is 1, this field contains result value of ADC conversion */
#define ADC_DR_RESULT(n)        (((n>>4)&0xFFF))
/** These bits mirror the OVERRRUN status flags that appear in the
 * result register for each A/D channel */
#define ADC_DR_OVERRUN_FLAG        ((1UL<<30))
/** This bit is set to 1 when an A/D conversion completes. It is cleared
 * when this register is read */
#define ADC_DR_DONE_FLAG        ((1UL<<31))

/*********************************************************************//**
 * Macro defines for ADC Status register
**********************************************************************/
/** These bits mirror the DONE status flags that appear in the result
 * register for each A/D channel */
#define ADC_STAT_CH_DONE_FLAG(n)        ((n&0xFF))
/** These bits mirror the OVERRRUN status flags that appear in the
 * result register for each A/D channel */
#define ADC_STAT_CH_OVERRUN_FLAG(n)        (((n>>8)&0xFF))
/** This bit is the A/D interrupt flag */
#define ADC_STAT_INT_FLAG                ((1UL<<16))

/*********************************************************************//**
 * Macro defines for ADC Trim register
**********************************************************************/
/** Offset trim bits for ADC operation */
#define ADC_ADCOFFS(n)        (((n&0xF)<<4))
/** Written to boot code*/
#define ADC_TRIM(n)            (((n&0xF)<<8))

/* ------------------- CHECK PARAM DEFINITIONS ------------------------- */
/** Check ADC parameter */
#define PARAM_ADCx(n)    (((uint32_t *)n)==((uint32_t *)LPC_ADC))

/** Check ADC state parameter */
#define PARAM_ADC_START_ON_EDGE_OPT(OPT)    ((OPT == ADC_START_ON_RISING)||(OPT == ADC_START_ON_FALLING))

/** Check ADC state parameter */
#define PARAM_ADC_DATA_STATUS(OPT)    ((OPT== ADC_DATA_BURST)||(OPT== ADC_DATA_DONE))

/** Check ADC rate parameter */
#define PARAM_ADC_RATE(rate)    ((rate>0)&&(rate<=200000))

/** Check ADC channel selection parameter */
#define PARAM_ADC_CHANNEL_SELECTION(SEL)    ((SEL == ADC_CHANNEL_0)||(ADC_CHANNEL_1)\
||(SEL == ADC_CHANNEL_2)|(ADC_CHANNEL_3)\
||(SEL == ADC_CHANNEL_4)||(ADC_CHANNEL_5)\
||(SEL == ADC_CHANNEL_6)||(ADC_CHANNEL_7))

/** Check ADC start option parameter */
#define PARAM_ADC_START_OPT(OPT)    ((OPT == ADC_START_CONTINUOUS)||(OPT == ADC_START_NOW)\
||(OPT == ADC_START_ON_EINT0)||(OPT == ADC_START_ON_CAP01)\
||(OPT == ADC_START_ON_MAT01)||(OPT == ADC_START_ON_MAT03)\
||(OPT == ADC_START_ON_MAT10)||(OPT == ADC_START_ON_MAT11))

/** Check ADC interrupt type parameter */
#define PARAM_ADC_TYPE_INT_OPT(OPT)    ((OPT == ADC_ADINTEN0)||(OPT == ADC_ADINTEN1)\
||(OPT == ADC_ADINTEN2)||(OPT == ADC_ADINTEN3)\
||(OPT == ADC_ADINTEN4)||(OPT == ADC_ADINTEN5)\
||(OPT == ADC_ADINTEN6)||(OPT == ADC_ADINTEN7)\
||(OPT == ADC_ADGINTEN))

/**
 * @}
 */


/* Public Types --------------------------------------------------------------- */
/** @defgroup ADC_Public_Types ADC Public Types
 * @{
 */

/*********************************************************************//**
 * @brief ADC enumeration
 **********************************************************************/
/** @brief Channel Selection */
typedef enum
{
    ADC_CHANNEL_0  = 0, /*!<  Channel 0 */
    ADC_CHANNEL_1,        /*!<  Channel 1 */
    ADC_CHANNEL_2,        /*!<  Channel 2 */
    ADC_CHANNEL_3,        /*!<  Channel 3 */
    ADC_CHANNEL_4,        /*!<  Channel 4 */
    ADC_CHANNEL_5,        /*!<  Channel 5 */
    ADC_CHANNEL_6,        /*!<  Channel 6 */
    ADC_CHANNEL_7        /*!<  Channel 7 */
}ADC_CHANNEL_SELECTION;

/** @brief Type of start option */
typedef enum
{
    ADC_START_CONTINUOUS =0,    /*!< Continuous mode */
    ADC_START_NOW,                /*!< Start conversion now */
    ADC_START_ON_EINT0,            /*!< Start conversion when the edge selected
                                 * by bit 27 occurs on P2.10/EINT0 */
    ADC_START_ON_CAP01,            /*!< Start conversion when the edge selected
                                 * by bit 27 occurs on P1.27/CAP0.1 */
    ADC_START_ON_MAT01,            /*!< Start conversion when the edge selected
                                 * by bit 27 occurs on MAT0.1 */
    ADC_START_ON_MAT03,            /*!< Start conversion when the edge selected
                                 * by bit 27 occurs on MAT0.3 */
    ADC_START_ON_MAT10,            /*!< Start conversion when the edge selected
                                  * by bit 27 occurs on MAT1.0 */
    ADC_START_ON_MAT11            /*!< Start conversion when the edge selected
                                  * by bit 27 occurs on MAT1.1 */
} ADC_START_OPT;


/** @brief Type of edge when start conversion on the selected CAP/MAT signal */
typedef enum
{
    ADC_START_ON_RISING = 0,    /*!< Start conversion on a rising edge
                                *on the selected CAP/MAT signal */
    ADC_START_ON_FALLING        /*!< Start conversion on a falling edge
                                *on the selected CAP/MAT signal */
} ADC_START_ON_EDGE_OPT;

/** @brief* ADC type interrupt enum */
typedef enum
{
    ADC_ADINTEN0 = 0,        /*!< Interrupt channel 0 */
    ADC_ADINTEN1,            /*!< Interrupt channel 1 */
    ADC_ADINTEN2,            /*!< Interrupt channel 2 */
    ADC_ADINTEN3,            /*!< Interrupt channel 3 */
    ADC_ADINTEN4,            /*!< Interrupt channel 4 */
    ADC_ADINTEN5,            /*!< Interrupt channel 5 */
    ADC_ADINTEN6,            /*!< Interrupt channel 6 */
    ADC_ADINTEN7,            /*!< Interrupt channel 7 */
    ADC_ADGINTEN            /*!< Individual channel/global flag done generate an interrupt */
}ADC_TYPE_INT_OPT;

/** @brief ADC Data  status */
typedef enum
{
    ADC_DATA_BURST = 0,        /*Burst bit*/
    ADC_DATA_DONE         /*Done bit*/
}ADC_DATA_STATUS;

/**
 * @}
 */


/* Public Functions ----------------------------------------------------------- */
/** @defgroup ADC_Public_Functions ADC Public Functions
 * @{
 */
/* Init/DeInit ADC peripheral ----------------*/
void ADC_Init(LPC_ADC_TypeDef *ADCx, uint32_t rate);
void ADC_DeInit(LPC_ADC_TypeDef *ADCx);

/* Enable/Disable ADC functions --------------*/
void ADC_BurstCmd(LPC_ADC_TypeDef *ADCx, FunctionalState NewState);
void ADC_PowerdownCmd(LPC_ADC_TypeDef *ADCx, FunctionalState NewState);
void ADC_StartCmd(LPC_ADC_TypeDef *ADCx, uint8_t start_mode);
void ADC_ChannelCmd (LPC_ADC_TypeDef *ADCx, uint8_t Channel, FunctionalState NewState);

/* Configure ADC functions -------------------*/
void ADC_EdgeStartConfig(LPC_ADC_TypeDef *ADCx, uint8_t EdgeOption);
void ADC_IntConfig (LPC_ADC_TypeDef *ADCx, ADC_TYPE_INT_OPT IntType, FunctionalState NewState);

/* Get ADC information functions -------------------*/
uint16_t ADC_ChannelGetData(LPC_ADC_TypeDef *ADCx, uint8_t channel);
FlagStatus ADC_ChannelGetStatus(LPC_ADC_TypeDef *ADCx, uint8_t channel, uint32_t StatusType);
uint32_t ADC_GlobalGetData(LPC_ADC_TypeDef *ADCx);
FlagStatus    ADC_GlobalGetStatus(LPC_ADC_TypeDef *ADCx, uint32_t StatusType);

/**
 * @}
 */


#ifdef __cplusplus
}
#endif


#endif /* LPC17XX_ADC_H_ */

/**
 * @}
 */

/* --------------------------------- End Of File ------------------------------ */