166 lines
5.2 KiB
C
166 lines
5.2 KiB
C
/**********************************************************************
|
||
* $Id$ lpc_dac.h 2011-06-02
|
||
*//**
|
||
* @file lpc_dac.h
|
||
* @brief Contains all macro definitions and function prototypes
|
||
* support for DAC firmware library on LPC
|
||
* @version 1.0
|
||
* @date 02. June. 2011
|
||
* @author NXP MCU SW Application Team
|
||
*
|
||
* Copyright(C) 2011, NXP Semiconductor
|
||
* All rights reserved.
|
||
*
|
||
***********************************************************************
|
||
* 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.
|
||
* Permission to use, copy, modify, and distribute this software and its
|
||
* documentation is hereby granted, under NXP Semiconductors'
|
||
* relevant copyright in the software, without fee, provided that it
|
||
* is used in conjunction with NXP Semiconductors microcontrollers. This
|
||
* copyright, permission, and disclaimer notice must appear in all copies of
|
||
* this code.
|
||
**********************************************************************/
|
||
|
||
|
||
/* Peripheral group ----------------------------------------------------------- */
|
||
/** @defgroup DAC DAC (Digital-to-Analog Converter)
|
||
* @ingroup LPC_CMSIS_FwLib_Drivers
|
||
* @{
|
||
*/
|
||
|
||
#ifndef __LPC_DAC_H_
|
||
#define __LPC_DAC_H_
|
||
|
||
/* Includes ------------------------------------------------------------------- */
|
||
#include "LPC407x_8x_177x_8x.h"
|
||
|
||
#include "lpc_types.h"
|
||
|
||
|
||
#ifdef __cplusplus
|
||
extern "C"
|
||
{
|
||
#endif
|
||
|
||
/* Public Macros -------------------------------------------------------------- */
|
||
/** @defgroup DAC_Private_Macros DAC Private Macros
|
||
* @{
|
||
*/
|
||
|
||
/** After the selected settling time after this field is written with a
|
||
new VALUE, the voltage on the AOUT pin (with respect to VSSA)
|
||
is VALUE/1024 <20> VREF */
|
||
#define DAC_VALUE(n) ((uint32_t)((n&0x3FF)<<6))
|
||
|
||
/** If this bit = 0: The settling time of the DAC is 1 microsecond max,
|
||
* and the maximum current is 700 microAmpere
|
||
* If this bit = 1: The settling time of the DAC is 2.5 microsecond
|
||
* and the maximum current is 350 microAmpere */
|
||
#define DAC_BIAS_EN ((uint32_t)(1<<16))
|
||
|
||
/** Value to reload interrupt DMA counter */
|
||
#define DAC_CCNT_VALUE(n) ((uint32_t)(n&0xffff))
|
||
|
||
/** DCAR double buffering */
|
||
#define DAC_DBLBUF_ENA ((uint32_t)(1<<1))
|
||
|
||
/** DCAR Time out count enable */
|
||
#define DAC_CNT_ENA ((uint32_t)(1<<2))
|
||
|
||
/** DCAR DMA access */
|
||
#define DAC_DMA_ENA ((uint32_t)(1<<3))
|
||
|
||
/** DCAR DACCTRL mask bit */
|
||
#define DAC_DACCTRL_MASK ((uint32_t)(0x0F))
|
||
|
||
/** Macro to determine if it is valid DAC peripheral */
|
||
#define PARAM_DACx(n) (((uint32_t *)n)==((uint32_t *)LPC_DAC))
|
||
|
||
/** Macro to check DAC current optional parameter */
|
||
#define PARAM_DAC_CURRENT_OPT(OPTION) ((OPTION == DAC_MAX_CURRENT_700uA)\
|
||
||(OPTION == DAC_MAX_CURRENT_350uA))
|
||
/**
|
||
* @}
|
||
*/
|
||
/* Public Types --------------------------------------------------------------- */
|
||
/** @defgroup DAC_Public_Types DAC Public Types
|
||
* @{
|
||
*/
|
||
|
||
/**
|
||
* @brief Current option in DAC configuration option */
|
||
typedef enum
|
||
{
|
||
DAC_MAX_CURRENT_700uA = 0, /*!< The settling time of the DAC is 1 us max,
|
||
and the maximum current is 700 uA */
|
||
DAC_MAX_CURRENT_350uA /*!< The settling time of the DAC is 2.5 us
|
||
and the maximum current is 350 uA */
|
||
} DAC_CURRENT_OPT;
|
||
|
||
/**
|
||
* @brief Configuration for DAC converter control register */
|
||
typedef struct
|
||
{
|
||
|
||
uint8_t DBLBUF_ENA; /**<
|
||
- If 0: Disable DACR double buffering
|
||
|
||
- If 1: when bit CNT_ENA, enable DACR double buffering feature
|
||
*/
|
||
uint8_t CNT_ENA; /*!<
|
||
- If 0: Time out counter is disable
|
||
|
||
-1: Time out conter is enable
|
||
*/
|
||
uint8_t DMA_ENA; /*!<
|
||
- If 0: DMA access is disable
|
||
|
||
- If 1: DMA burst request
|
||
*/
|
||
uint8_t RESERVED;
|
||
|
||
} DAC_CONVERTER_CFG_Type;
|
||
|
||
/**
|
||
* @}
|
||
*/
|
||
|
||
/* Public Functions ----------------------------------------------------------- */
|
||
/** @defgroup DAC_Public_Functions DAC Public Functions
|
||
* @{
|
||
*/
|
||
|
||
void DAC_Init(uint8_t DAC_Id);
|
||
void DAC_UpdateValue (uint8_t DAC_Id, uint32_t dac_value);
|
||
void DAC_SetBias (uint8_t DAC_Id,uint32_t bias);
|
||
void DAC_ConfigDAConverterControl (uint8_t DAC_Id,DAC_CONVERTER_CFG_Type *DAC_ConverterConfigStruct);
|
||
void DAC_SetDMATimeOut(uint8_t DAC_Id,uint32_t time_out);
|
||
uint8_t DAC_IsIntRequested(uint8_t DAC_Id);
|
||
|
||
/**
|
||
* @}
|
||
*/
|
||
|
||
#ifdef __cplusplus
|
||
}
|
||
#endif
|
||
|
||
|
||
#endif /* __LPC_DAC_H_ */
|
||
|
||
/**
|
||
* @}
|
||
*/
|
||
|
||
/* --------------------------------- End Of File ------------------------------ */
|
||
|