/*
  C language header file for sample programs for the DM5406.

  Real Time Devices, Inc.
  Box 906
  State College, PA  16804

  Voice: 814-234-8087
  FAX:   814-234-5218

  Compiler: Turbo C (r) version 1.0, 2.0
	    Turbo C++ (r) version 1.0
	    Borland C++ (r) version 2.0

  Last update:  9/4/93

*/

/*
 The following constants define the location of the various registers on
 the DM5406  The are included to make the code more readable; statements
 such as:

	   outportb(BaseAddress + START_CONVERSION, 0);

 are less obscure than:

	   outportb(516, 0);

*/

#define STATUS_BYTE  0
#define START_CONVERSION  0
#define READ_DATA  1
#define DAC_UPDATE  1
#define CLEAR_BOARD  2
#define SCAN_BURST_SLCT 3
#define CHANNEL_SLCT  5
#define GAIN_SLCT  5
#define IRQ_ENABLE  5
#define EXT_TRIG_ENABLE  5
#define PPI_A  4
#define PPI_B  5
#define PPI_C  6
#define PPI_CTRL  7
#define TIMER_A  8
#define TIMER_B  9
#define TIMER_C  10
#define TIMER_CTRL  11
#define DAC1_LSB  12
#define DAC1_MSB  13
#define DAC2_LSB  14
#define DAC2_MSB  15
#define CLEAR_IRQ_STAT 14
#define CLEAR_DMA_DONE 15

#define PPI_PORT_A  0
#define PPI_PORT_B  1
#define PPI_PORT_C  2

#define DISABLE_BOTH 0
#define SCAN_ENABLE 1
#define BURST_ENABLE 2

#define SOURCE_AD_START 0
#define SOURCE_DMA_DONE 1
#define SOURCE_TRIGGER 2
#define SOURCE_PACER_CLOCK 3

/* Norton's Additions... */
#define BaseAddress 0x380

/* These are the bits that pertain to the A/D address and gain */
#define AD_MASK 0x3F
#define GAIN_MASK 0x30
#define GAIN_1 0
#define GAIN_2 0x10
#define GAIN_4 0x20
#define GAIN_8 0x30

#define DM_INPUT  1
#define DM_OUTPUT  0

unsigned short DM_DoConversion( void );
unsigned short DM_Read_AtoD( unsigned char Channel );
void DM_Reset(void);
void DM_DAC_Write( unsigned char DAC, unsigned short Value );
unsigned char DM_ReadDigitalIO(unsigned char InputPort);
void DM_ConfigureIOPorts(unsigned char PortA, unsigned char PortC);
void DM_WriteDigitalIO(unsigned char OutputPort, unsigned char v);