at73c213.h

IAR5.2下 AT91SAM9260 ARM 对 MCP2515 控制源化码

/* ----------------------------------------------------------------------------
 *         ATMEL Microcontroller Software Support 
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//------------------------------------------------------------------------------
/// \dir
/// !Purpose
/// 
/// Definitions and methods for using a single external AT73C213 DAC. Several
/// constants must be declared at the board.h level for that:
/// - BOARD_AT73C213_SPI
/// - BOARD_AT73C213_SPI_ID 
/// - BOARD_AT73C213_NPCS
/// - BOARD_AT73C213_SSC
/// - BOARD_AT73C213_SSC_ID
///
/// !Usage
/// 
/// -# Configure the mode register of the SPI associated with the DAC and
///    enable the SPI peripheral (see spi.h).
/// -# Enable the master clock of the DAC (usually, it will be connected to
///    a programmable clock output).
/// -# Call the AT73C213_Enable function with the desired parameters. This
///    function configures the associated NPCS register of the SPI for correct
///    interfacing with the DAC, starts the DAC and configures the SSC.
/// -# Send audio data to the DAC using the SSC, with SSC_WriteBuffer or
///    SSC_Write.
//------------------------------------------------------------------------------

#ifndef AT73C213_H
#define AT73C213_H

//------------------------------------------------------------------------------
//         Exported functions
//------------------------------------------------------------------------------

extern void AT73C213_Enable(unsigned int Fs,
                            unsigned int sampleSize,
                            unsigned int numChannels,
                            unsigned char isClock384,
                            unsigned int masterClock);
extern void AT73C213_Disable();
extern void AT73C213_SetMuteStatus(unsigned char leftChannelMuted,
                                   unsigned char rightChannelMuted);

#endif //#ifndef AT73C213_H