adc.h.svn-base

Spearhead2000 的 USB驱动程序

/*****************************************************************************/
/*                                                                           */
/* -- File:                  adc.h                                           */
/* -- Author:                Maurizio Costagliola      			     */
/* -- Description:           Header ADC                                      */
/*                                                                           */
/* -- Modification History: - 1.0                                            */
/*****************************************************************************/

#ifdef __cplusplus
extern  "C" {           /* C declarations in C++ */
#endif


#define ADC_BASE 0x1200B000

typedef struct ADCController
{

  unsigned int ADC_STATUS_REG;
  unsigned int AVERAGE_REG;   
  unsigned int N_SAMPLE_REG;  
  unsigned int ADC_CLK_REG;   

} ADCController;

#define ADCCntl ((volatile struct ADCController*) (ADC_BASE))

/* Fields position */


/* Control values */

/* STATUS_REG */
#define MASK_EN            0x00000001 //EN 
#define MASK_CHANNEL       0x00000001 //mask bit 1
#define MASK_SAMPLE        0x00000080 //mask bit 2
#define INT_ENA            0x80000000 //interrupt enable
#define MASK_ADC_STATUS_INIT 0x00000066 //EN 

/* STATUS_REG */
#define INT_CLR         0xFFFFFFFE //clear: int clear; read: int status
#define INT_BIT         0x00000100 //clear: int clear; read: int status

extern void reg_read(void);
extern void adc_init(void);
extern void adc_test(void);

#ifdef __cplusplus
} /* C declarations in C++ */
#endif