spi.s

spi的i/o茉莉程序

	.module SPI.c
	.area text(rom, con, rel)
	.dbfile E:\ICC\SPI\SPI.c
	.dbfunc e Spi_init _Spi_init fV
	.even
_Spi_init::
	.dbline -1
	.dbline 10
; #include <iom8v.h>
; #include "uart.h"
; #include "mytype.h"
; #include "spi.h"
; 
; 
; extern uint8 table[];
; 
; void Spi_init(void)
; {
	.dbline 11
; DDR1=((1<<WP)|(1<<SO)|(1<<SCLK)|(1<<CS));
	ldi R24,46
	out 0x17,R24
	.dbline 12
; SPCR=((1<<SPE)|(1<<MSTR)|(1<<SPR0));
	ldi R24,81
	out 0xd,R24
	.dbline 13
; WP_1;
	sbi 0x18,1
	.dbline -2
L1:
	.dbline 0 ; func end
	ret
	.dbend
	.dbfunc e Spi_MT _Spi_MT fV
;           data -> R16
	.even
_Spi_MT::
	.dbline -1
	.dbline 17
; }
; 
; void Spi_MT(uint8 data)
; {
	.dbline 18
; SPDR=data;
	out 0xf,R16
L3:
	.dbline 19
L4:
	.dbline 19
; while(!(SPSR&(1<<SPIF)));
	sbis 0xe,7
	rjmp L3
	.dbline -2
L2:
	.dbline 0 ; func end
	ret
	.dbsym r data 16 c
	.dbend
	.dbfunc e Spi_MR _Spi_MR fc
;           data -> R16
	.even
_Spi_MR::
	.dbline -1
	.dbline 23
; }
; 
; uint8 Spi_MR()
; {
	.dbline 25
; uint8 data;
; data=SPDR;
	in R16,0xf
	.dbline 26
; SPDR=data;
	out 0xf,R16
L7:
	.dbline 27
L8:
	.dbline 27
; while(!(SPSR&(1<<SPIF)));
	sbis 0xe,7
	rjmp L7
	.dbline 31
; //Prints("Get data Readdata...",1);
; //Send_abyte(table[SPDR/16]);
; //Send_abyte(table[SPDR/16]);
; return SPDR;
	in R16,0xf
	.dbline -2
L6:
	.dbline 0 ; func end
	ret
	.dbsym r data 16 c
	.dbend