IP: DAC register block and driver

Detailed Description

Data Structures
struct	IP_DAC_001_T
	DAC register block structure. More...

Macros
#define	DAC_VALUE(n)   ((uint32_t) ((n & 0x3FF) << 6))
#define	DAC_BIAS_EN   ((uint32_t) (1 << 16))
#define	DAC_CCNT_VALUE(n)   ((uint32_t) (n & 0xffff))
#define	DAC_DBLBUF_ENA   ((uint32_t) (1 << 1))
#define	DAC_CNT_ENA   ((uint32_t) (1 << 2))
#define	DAC_DMA_ENA   ((uint32_t) (1 << 3))
#define	DAC_DACCTRL_MASK   ((uint32_t) (0x0F))

Enumerations
enum	IP_DAC_CURRENT_OPT_T { DAC_MAX_UPDATE_RATE_1MHz = 0, DAC_MAX_UPDATE_RATE_400kHz }
	Current option in DAC configuration option. More...

Functions
void	IP_DAC_Init (IP_DAC_001_T *pDAC)
	Initial DAC configuration.
void	IP_DAC_UpdateValue (IP_DAC_001_T *pDAC, uint32_t dac_value)
	Update value to DAC buffer.
void	IP_DAC_SetBias (IP_DAC_001_T *pDAC, uint32_t bias)
	Set maximum update rate for DAC.
STATIC INLINE void	IP_DAC_ConfigDAConverterControl (IP_DAC_001_T *pDAC, uint32_t dacFlags)
	Enables the DMA operation and controls DMA timer.
void	IP_DAC_SetDMATimeOut (IP_DAC_001_T *pDAC, uint32_t time_out)
	Set reload value for interrupt/DMA counter.
IntStatus	IP_DAC_GetIntStatus (IP_DAC_001_T *pDAC)
	Get status for interrupt/DMA time out.

Macro Definition Documentation

#define DAC_BIAS_EN   ((uint32_t) (1 << 16))

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

Definition at line 65 of file dac_001.h.

#define DAC_CCNT_VALUE

(

n

)

((uint32_t) (n & 0xffff))

Value to reload interrupt DMA counter

Definition at line 67 of file dac_001.h.

#define DAC_CNT_ENA   ((uint32_t) (1 << 2))

DCAR Time out count enable

Definition at line 72 of file dac_001.h.

#define DAC_DACCTRL_MASK   ((uint32_t) (0x0F))

DCAR DACCTRL mask bit

Definition at line 76 of file dac_001.h.

#define DAC_DBLBUF_ENA   ((uint32_t) (1 << 1))

DCAR double buffering

Definition at line 70 of file dac_001.h.

#define DAC_DMA_ENA   ((uint32_t) (1 << 3))

DCAR DMA access

Definition at line 74 of file dac_001.h.

#define DAC_VALUE

(

n

)

((uint32_t) ((n & 0x3FF) << 6))

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 � VREF

Definition at line 59 of file dac_001.h.

Enumeration Type Documentation

enum IP_DAC_CURRENT_OPT_T

Current option in DAC configuration option.

Enumerator:

DAC_MAX_UPDATE_RATE_1MHz	Shorter settling times and higher power consumption; allows for a maximum update rate of 1 MHz
DAC_MAX_UPDATE_RATE_400kHz	Longer settling times and lower power consumption; allows for a maximum update rate of 400 kHz

Definition at line 81 of file dac_001.h.

Function Documentation

STATIC INLINE void IP_DAC_ConfigDAConverterControl	(	IP_DAC_001_T *	pDAC,
		uint32_t	dacFlags
	)

Enables the DMA operation and controls DMA timer.

Parameters

pDAC	: pointer to the DAC peripheral block
dacFlags	: An Or'ed value of the following DAC values: DAC_DBLBUF_ENA :enable/disable DACR double buffering feature DAC_CNT_ENA :enable/disable timer out counter DAC_DMA_ENA :enable/disable DMA access

Returns

Nothing

Note

Pass an Or'ed value of the DAC flags to enable those options.

Definition at line 125 of file dac_001.h.

IntStatus IP_DAC_GetIntStatus

(

IP_DAC_001_T *

pDAC

)

Get status for interrupt/DMA time out.

Parameters

pDAC	: pointer to the DAC peripheral block

Returns

interrupt/DMA time out status, should be SET or RESET

Definition at line 85 of file dac_001.c.

void IP_DAC_Init

(

IP_DAC_001_T *

pDAC

)

Initial DAC configuration.

         - Maximum update rate is 1MHz
         - Value to AOUT is 0

Parameters

pDAC	: pointer to the DAC peripheral block

Returns

Nothing

Definition at line 51 of file dac_001.c.

void IP_DAC_SetBias	(	IP_DAC_001_T *	pDAC,
		uint32_t	bias
	)

Set maximum update rate for DAC.

Parameters

pDAC	: pointer to the DAC peripheral block
bias	: Using Bias value, should be: 0 is 1MHz 1 is 400kHz

Returns

Nothing

Definition at line 69 of file dac_001.c.

void IP_DAC_SetDMATimeOut	(	IP_DAC_001_T *	pDAC,
		uint32_t	time_out
	)

Set reload value for interrupt/DMA counter.

Parameters

pDAC	: pointer to the DAC peripheral block
time_out	: time out to reload for interrupt/DMA counter

Returns

Nothing

Definition at line 79 of file dac_001.c.

void IP_DAC_UpdateValue	(	IP_DAC_001_T *	pDAC,
		uint32_t	dac_value
	)

Update value to DAC buffer.

Parameters

pDAC	: pointer to the DAC peripheral block
dac_value	: value 10 bit to be converted to output

Returns

Nothing

Definition at line 58 of file dac_001.c.