CHIP: LPC17xx/40xx D/A conversion driver

Detailed Description

Functions
void	Chip_DAC_Init (LPC_DAC_T *pDAC)
	Initial DAC configuration.
STATIC INLINE void	Chip_DAC_DeInit (LPC_DAC_T *pDAC)
	Shutdown DAC.
STATIC INLINE void	Chip_DAC_UpdateValue (LPC_DAC_T *pDAC, uint32_t dac_value)
	Update value to DAC buffer.
STATIC INLINE void	Chip_DAC_SetBias (LPC_DAC_T *pDAC, uint32_t bias)
	Set maximum update rate for DAC.
STATIC INLINE void	Chip_DAC_ConfigDAConverterControl (LPC_DAC_T *pDAC, uint32_t dacFlags)
	Enables the DMA operation and controls DMA timer.
STATIC INLINE void	Chip_DAC_SetDMATimeOut (LPC_DAC_T *pDAC, uint32_t time_out)
	Set reload value for interrupt/DMA counter.
STATIC INLINE IntStatus	Chip_DAC_GetIntStatus (LPC_DAC_T *pDAC)
	Get status for interrupt/DMA time out.

Function Documentation

STATIC INLINE void Chip_DAC_ConfigDAConverterControl	(	LPC_DAC_T *	pDAC,
		uint32_t	dacFlags
	)

Enables the DMA operation and controls DMA timer.

Parameters

pDAC	: pointer to LPC_DAC_T
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 94 of file dac_17xx_40xx.h.

STATIC INLINE void Chip_DAC_DeInit

(

LPC_DAC_T *

pDAC

)

Shutdown DAC.

Parameters

pDAC	: pointer to LPC_DAC_T

Returns

Nothing

Definition at line 58 of file dac_17xx_40xx.h.

STATIC INLINE IntStatus Chip_DAC_GetIntStatus

(

LPC_DAC_T *

pDAC

)

Get status for interrupt/DMA time out.

Parameters

pDAC	: pointer to LPC_DAC_T

Returns

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

Definition at line 115 of file dac_17xx_40xx.h.

void Chip_DAC_Init

(

LPC_DAC_T *

pDAC

)

Initial DAC configuration.

         - Maximum current is 700 uA
         - Value to AOUT is 0

Parameters

pDAC	: pointer to LPC_DAC_T

Returns

Nothing

Definition at line 51 of file dac_17xx_40xx.c.

STATIC INLINE void Chip_DAC_SetBias	(	LPC_DAC_T *	pDAC,
		uint32_t	bias
	)

Set maximum update rate for DAC.

Parameters

pDAC	: pointer to LPC_DAC_T
bias	: Using Bias value, should be: 0 is 1MHz 1 is 400kHz

Returns

Nothing

Definition at line 79 of file dac_17xx_40xx.h.

STATIC INLINE void Chip_DAC_SetDMATimeOut	(	LPC_DAC_T *	pDAC,
		uint32_t	time_out
	)

Set reload value for interrupt/DMA counter.

Parameters

pDAC	: pointer to LPC_DAC_T
time_out	: time out to reload for interrupt/DMA counter

Returns

Nothing

Definition at line 105 of file dac_17xx_40xx.h.

STATIC INLINE void Chip_DAC_UpdateValue	(	LPC_DAC_T *	pDAC,
		uint32_t	dac_value
	)

Update value to DAC buffer.

Parameters

pDAC	: pointer to LPC_DAC_T
dac_value	: value 10 bit to be converted to output

Returns

Nothing

Definition at line 66 of file dac_17xx_40xx.h.