DAC Subsystem

Collaboration diagram for DAC Subsystem:

Data Structures
struct	dac_generic

Functions
struct dac *	dac_init (uint32_t index, uint8_t bits)
int32_t	dac_deinit (struct dac *dac)
int32_t	dac_set (struct dac *dac, uint32_t data, TickType_t waittime)
int32_t	dac_setISR (struct dac *dac, uint32_t data)

Detailed Description

#include <dac.h>

This is the DAC Subsystem for controlling DAC of a SOC.

Function Documentation

dac_deinit()

int32_t dac_deinit

(

struct dac *

dac

)

Deinit DAC

Parameters

dac	DAC instance

Returns

-1 on error 0 on ok

dac_init()

struct dac* dac_init	(	uint32_t	index,
		uint8_t	bits
	)

init DAC instance

Parameters

index	Index of PWM
bits	bit width of DAC common: 4, 8, 12. 0 on only set instance

Returns

DAC Instance NULL on Error if only set instance on bits == 0

dac_set()

int32_t dac_set	(	struct dac *	dac,
		uint32_t	data,
		TickType_t	waittime
	)

Get DAC Value

Parameters

dac	DAC instance
waittime	max waittime in mutex or isr lock see xSemaphoreTake()

Returns

-1 on error >= 0 Value

dac_setISR()

int32_t dac_setISR	(	struct dac *	dac,
		uint32_t	data
	)

Get DAC Value in Interrupt Service Routine

Parameters

dac	DAC instance

Returns

-1 on error >= 0 Value