RE: [avr-gcc-list] SPI

[Leonard Tsai]

 to setup the SPI:

    DDR_SPI = (1<<DD_MOSI) | (1<<DD_SCK) | (1<<DDB3) | (1<<DDB4);

    SPCR = (1<<CPOL) | (1<<SPE) | (1<<MSTR) | (0<<SPR0) | (0<<DORD);
    SPSR = 0x01;

// Send 16 bits

Void send16(u16 data) {
    int r;
    SS_lo;              // Slave Select

    SPDR = (data>>8);
    while (!(SPSR & (1<<SPIF)));
    SPDR = (data&0xff);
    while (!(SPSR & (1<<SPIF)));

    SS_hi;
}

Here is the result from the code: 

http://www.nanocluster.net/Leonard/album03/HTML/p120303.htm

Hope this help

-----Original Message-----
From: address@hidden [mailto:address@hidden On Behalf Of ???
Sent: Monday, December 15, 2003 10:30 PM
To: D I Freeman
Cc: address@hidden
Subject: 회신:[avr-gcc-list] SPI

Hi..

How about the datasheet of AVR? For example, the datasheet of ATmega128 has 
some sample source code written in C and ASM.

Thanks...
address@hidden

----- Original Message -----
From: D I Freeman
To: address@hidden
Sent: 2003년 12월16일 11:25(화)
Subject: [avr-gcc-list] SPI 





Hi,

Can someone point me towards the documentation on how to use the SPI port with 
avr-gcc please? I am either blind or stupid as of yet I have ben unable to find 
any info on it.

Thanks

D

_______________________________________________
avr-gcc-list mailing list
address@hidden
http://www.avr1.org/mailman/listinfo/avr-gcc-list