dac_dma.c File Reference

#include "chip.h"
#include <stdint.h>
#include <assert.h>

Functions
uint32_t	Dac_ConfigureDma (DacDma *pDacd, Dacc *pDacHw, uint8_t DacId, sXdmad *pXdmad)
	Initializes the DacDma structure and the corresponding DAC & DMA . hardware select value. The driver will uses DMA channel 0 for RX . The DMA channels are freed automatically when no DMA command processing.
uint32_t	Dac_SendData (DacDma *pDacd, DacCmd *pCommand)
	Starts a DAC transfer. This is a non blocking function. It will return as soon as the transfer is started.

Detailed Description

Implementation of Digital-to-Analog Converter Controller (DACC).

Function Documentation

Dac_ConfigureDma()

uint32_t Dac_ConfigureDma	(	DacDma *	pDacd,
		Dacc *	pDacHw,
		uint8_t	DacId,
		sXdmad *	pXdmad
	)

Initializes the DacDma structure and the corresponding DAC & DMA . hardware select value. The driver will uses DMA channel 0 for RX . The DMA channels are freed automatically when no DMA command processing.

Parameters

pDacd	Pointer to a DacDma instance.
pDacHw	Associated Dac peripheral.
DacId	Dac peripheral identifier.
pDmad	Pointer to a Dmad instance.

Dac_SendData()

uint32_t Dac_SendData	(	DacDma *	pDacd,
		DacCmd *	pCommand
	)

Starts a DAC transfer. This is a non blocking function. It will return as soon as the transfer is started.

Parameters

pDacd	Pointer to a DacDma instance.
pCommand	Pointer to the Dac command to execute.

Returns

0 if the transfer has been started successfully; otherwise returns DAC_ERROR_LOCK is the driver is in use, or DAC_ERROR if the command is not valid.