lpc32xx_smplpwm.h

NXP LPC3000系列 wince BSP包

/***********************************************************************
* $Id:: lpc32xx_smplpwm.h 1101 2008-08-20 22:25:30Z wellsk            $
*
* Project: LPC32XX simple PWM definitions
*
* Description:
*     This file contains the structure definitions and manifest
*     constants for the LPC32xx chip family component:
*         Simple PWM
*
***********************************************************************
* 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. 
**********************************************************************/

#ifndef LPC32XX_SMPLPWM_H
#define LPC32XX_SMPLPWM_H

#include "lpc_types.h"
#include "lpc32xx_chip.h"

#ifdef __cplusplus
extern "C" {
#endif

/**********************************************************************
* Simple PWM register structures
**********************************************************************/

/* Simple PWM module register structures */ 
typedef struct {
    volatile UNS_32 pwm_ctrl;      /* control register*/
} SMPLPWM_REGS_T;

/**********************************************************************
* pwm_ctrl register definitions
**********************************************************************/
/* clock gate and the external output enable */
#define SMPLPWM_EN              _BIT(31)
/* output pin level control when simple PWM is not used */
#define SMPLPWM_PIN_LEVEL       _BIT(30)
/* reload value for simple PWM output frequency */
#define SMPLPWM_RELOADV(n)      _SBF(8, ((n) & 0xFF))
/* output duty cycle adjustement */
#define SMPLPWM_DUTY(n)         _SBF(0, ((n) & 0xFF))

/* Macro pointing to simple PWM registers */
#define PWM1 ((SMPLPWM_REGS_T *)(PWM1_BASE))
#define PWM2 ((SMPLPWM_REGS_T *)(PWM2_BASE))

#ifdef __cplusplus
}
#endif

#endif /* LPC32XX_HSTIMER_H */