main.s

mega16 spi主从通信 测试通过（ICC）

	.module main.c
	.area text(rom, con, rel)
	.dbfile C:\DOCUME~1\zhuji\桌面\新建文件夹\spi主\main.c
	.dbfunc e SPIMasterInit _SPIMasterInit fV
	.even
_SPIMasterInit::
	.dbline -1
	.dbline 48
; #include "iom16v.h"
; #include "macros.h"
; #define uchar unsigned char
; #define uint  unsigned int
; //串口波特率9600
; /*void uart0_init(void)
; {
;  UCSRB = 0x00; //disable while setting baud rate
;  UCSRA = 0x00;
;  UCSRC = BIT(URSEL) | 0x06;
;  UBRRL = 0x0C; //set baud rate lo
;  UBRRH = 0x00; //set baud rate hi
;  UCSRB = 0x98;
; }*//*
; void uart0_init(void)
; {
;  UCSRB = 0x00; //disable while setting baud rate
;  UCSRA = 0x00;
;  UCSRC = 0x0B;//
;  UBRRL = 0x2F; //set baud rate lo
;  UBRRH = 0x00; //set baud rate hi  fosc=7372800HZ,Baud=115200
;  UCSRB = (1<<RXCIE)|(1<<TXCIE)|(1<<RXEN)|(1<<TXEN);//0xD8;//发送接受使能 中断使能
; }
; uchar RecvFlag = 0;
; uchar RecvData = 0;
; 
; #pragma interrupt_handler uart0_rx_isr:12
; void uart0_rx_isr(void)
; {
;  RecvFlag = 1;
;  RecvData = UDR;
;  while(!(UCSRA&0x20));
;  UDR = RecvData;
; }*/
; #define DDR_MISO  6
; #define DDR_MOSI  5
; #define DDR_SCK   7
; #define DDR_SS    4
; #define DDR_SPI   DDRB
; #define PORT_SPI  PORTB
; /*-----------------------------------------------------------------
; 函数名称: void SPIMasterInit(void)
; 函数功能: SPI主机初始化
; 参    数: 
; 返 回 值: 无
; -----------------------------------------------------------------*/
; void SPIMasterInit(void)
; {
	.dbline 49
;     DDR_SPI |= (1<<DDR_SCK)|(1<<DDR_MOSI);//输出
	in R24,0x17
	ori R24,160
	out 0x17,R24
	.dbline 50
;     DDR_SPI &=~(1<<DDR_MISO);//输入
	cbi 0x17,6
	.dbline 51
;     SPCR = (1<<SPE)|(1<<MSTR)|(1<<SPR1)|(1<<SPR0);//|(1<<CPOL)|(1<<CPHA)
	ldi R24,83
	out 0xd,R24
	.dbline -2
	.dbline 52
; }
L1:
	.dbline 0 ; func end
	ret
	.dbend
	.dbfunc e SPIMasterTransmit _SPIMasterTransmit fV
;       TranData -> R16
	.even
_SPIMasterTransmit::
	.dbline -1
	.dbline 60
; /*-----------------------------------------------------------------
; 函数名称: void SPIMasterTransmit(unsigned char i) 
; 函数功能: SPI数据发送
; 参    数: 
; 返 回 值: 无
; -----------------------------------------------------------------*/
; void SPIMasterTransmit(uchar TranData) 
; { 
	.dbline 61
;   SPDR = TranData;     // 启动数据传输 
	out 0xf,R16
L3:
	.dbline 62
L4:
	.dbline 62
;   while (!(SPSR & (1<<SPIF)));  // 等待传输结束 
	sbis 0xe,7
	rjmp L3
	.dbline -2
	.dbline 63
; }
L2:
	.dbline 0 ; func end
	ret
	.dbsym r TranData 16 c
	.dbend
	.dbfunc e DeviceInit _DeviceInit fV
	.even
_DeviceInit::
	.dbline -1
	.dbline 65
; void DeviceInit(void)
; {
	.dbline 66
;  CLI();
	cli
	.dbline 68
;  //uart0_init();
;  SPIMasterInit();
	xcall _SPIMasterInit
	.dbline 70
;  
;  MCUCR = 0;
	clr R2
	out 0x35,R2
	.dbline 71
;  TIMSK = 0;
	out 0x39,R2
	.dbline 72
;  GICR  = 0;
	out 0x3b,R2
	.dbline 73
;  SEI();
	sei
	.dbline -2
	.dbline 74
; }
L6:
	.dbline 0 ; func end
	ret
	.dbend
	.dbfunc e delay _delay fV
;            num -> R16,R17
	.even
_delay::
	.dbline -1
	.dbline 76
; void delay(int num )
; {
L8:
	.dbline 77
L9:
	.dbline 77
;   while(num--);
	movw R2,R16
	subi R16,1
	sbci R17,0
	tst R2
	brne L8
	tst R3
	brne L8
X0:
	.dbline -2
	.dbline 78
; }
L7:
	.dbline 0 ; func end
	ret
	.dbsym r num 16 I
	.dbend
	.dbfunc e main _main fV
	.even
_main::
	.dbline -1
	.dbline 80
; void main(void)
; {
	.dbline 81
;  PORT_SPI &=~(1<<DDR_SS);
	cbi 0x18,4
	.dbline 82
;  DDR_SPI |= (1<<DDR_SS); 
	sbi 0x17,4
	.dbline 83
;  DeviceInit();
	xcall _DeviceInit
	.dbline 85
;  
;  SPIMasterTransmit(0x05);
	ldi R16,5
	xcall _SPIMasterTransmit
	.dbline 87
;  
;   SPIMasterTransmit(0x32);
	ldi R16,50
	xcall _SPIMasterTransmit
L12:
	.dbline 89
	.dbline 99
L13:
	.dbline 88
	xjmp L12
X1:
	.dbline -2
	.dbline 100
;  while(1)
;  {
;  
;  
;    
;  
;    /*if(RecvFlag)
;   {
;    RecvFlag = 0;
;    SPIMasterTransmit(RecvData);
;   }*/
;  }
; }
L11:
	.dbline 0 ; func end
	ret
	.dbend