.module icc.c
	.area text(rom, con, rel)
	.dbfile D:\sl279\test\ICCAVR\icc.c
	.dbfunc s receive_byte _receive_byte fI
;              i -> R20
;           temp -> R22
	.even
_receive_byte::
	rcall push_gset2
	.dbline -1
	.dbline 14
; /************************************************************/
; /*               廣州天河雙龍電子有限公司                   */
; /*               http://www.sl.com.cn                       */
; /*    SL279鍵盤與LED顯示控制芯片演示程序（ICCAVR版本）      */
; /*                程序作者：詹衛(wèi)前                          */
; /*接線方式：CS=PORTC.4 CLK=PORTC.3 DATA=PORTC.2 KEY=PORTC.1 */
; /*       處理器：AT90S8515       晶振頻率：8MHZ             */
; /*       SL279 晶振頻率:12MHZ    使用SLAVR庫                */
; /************************************************************/
; #include<io8515.h>
; #include<slavr.h>
; /*         字節(jié)接收函數(shù)          */     
; unsigned char receive_byte(void)
;   {
	.dbline 15
;    unsigned char i,temp=0;
	clr R22
	.dbline 16
;    DDRC&=0xfb;              
	in R24,0x14
	andi R24,251
	out 0x14,R24
	.dbline 17
;    delay_us(90);
	ldi R16,90
	ldi R17,0
	rcall _delay_us
	.dbline 18
;    for(i=0;i<8;i++)
	clr R20
	rjmp L5
L2:
	.dbline 19
;        {
	.dbline 20
;         temp=temp<<1;  
	lsl R22
	.dbline 21
;         PORTC|=0x08;//clk=1      
	sbi 0x15,3
	.dbline 22
;         delay_us(10);
	ldi R16,10
	ldi R17,0
	rcall _delay_us
	.dbline 23
;         if((PINC&0x04)!=0) 
	sbis 0x13,2
	rjmp L6
	.dbline 24
;            temp|=0x01;   
	ori R22,1
L6:
	.dbline 25
	in R24,0x15
	andi R24,247
	out 0x15,R24
	.dbline 26
	ldi R16,10
	ldi R17,0
	rcall _delay_us
	.dbline 27
L3:
	.dbline 18
	inc R20
L5:
	.dbline 18
	cpi R20,8
	brlo L2
	.dbline 28
;         PORTC&=0xf7;//clk=0      
;         delay_us(10);
;        }
;    DDRC|=0x04;  
	sbi 0x14,2
	.dbline 29
;    return temp;
	mov R16,R22
	clr R17
	.dbline -2
L1:
	rcall pop_gset2
	.dbline 0 ; func end
	ret
	.dbsym r i 20 c
	.dbsym r temp 22 c
	.dbfunc s send_byte _send_byte fI
;              i -> R20
;           para -> R22
	.even
_send_byte::
	rcall push_gset2
	mov R22,R16
	.dbline -1
	.dbline 33
;    }  
; /*         字節(jié)發(fā)送函數(shù)            */
; void send_byte(unsigned char para)
;      {
	.dbline 35
;       unsigned char i;
;       PORTC&=0xef;//cs=0      
	in R24,0x15
	andi R24,239
	out 0x15,R24
	.dbline 36
;       delay_us(90);
	ldi R16,90
	ldi R17,0
	rcall _delay_us
	.dbline 37
;       for(i=0;i<8;i++)
	clr R20
	rjmp L12
L9:
	.dbline 38
;          {
	.dbline 39
;           if((para&0x80)==0x80)
	mov R24,R22
	andi R24,128
	cpi R24,128
	brne L13
	.dbline 40
;               PORTC|=0x04;//data=1   
	sbi 0x15,2
	rjmp L14
L13:
	.dbline 42
;           else
;               PORTC&=0xfb;//data=0   
	in R24,0x15
	andi R24,251
	out 0x15,R24
L14:
	.dbline 43
	sbi 0x15,3
	.dbline 44
	ldi R16,10
	ldi R17,0
	rcall _delay_us
	.dbline 45
	in R24,0x15
	andi R24,247
	out 0x15,R24
	.dbline 46
	ldi R16,10
	ldi R17,0
	rcall _delay_us
	.dbline 47
	lsl R22
	.dbline 48
L10:
	.dbline 37
	inc R20
L12:
	.dbline 37
	cpi R20,8
	brlo L9
	.dbline -2
	.dbline 49
;           PORTC|=0x08;//clk=1       
;           delay_us(10);
;           PORTC&=0xf7;//clk=0       
;           delay_us(10);
;           para=para<<1;                
;          }	  	 
;      }
L8:
	rcall pop_gset2
	.dbline 0 ; func end
	ret
	.dbsym r i 20 c
	.dbsym r para 22 c
	.dbfunc s write279 _write279 fI
;           cmd2 -> R20
;           cmd1 -> R22
	.even
_write279::
	rcall push_gset2
	mov R20,R18
	mov R22,R16
	.dbline -1
	.dbline 52
; /*               寫sl279雙字節(jié)命令                */          
; void write279(unsigned char cmd1, unsigned char cmd2)
; {
	.dbline 53
; 	send_byte (cmd1);
	mov R16,R22
	rcall _send_byte
	.dbline 54
; 	send_byte (cmd2);                              
	mov R16,R20
	rcall _send_byte
	.dbline 55
; 	PORTC|=0x10;
	sbi 0x15,4
	.dbline -2
	.dbline 56
; }
L15:
	rcall pop_gset2
	.dbline 0 ; func end
	ret
	.dbsym r cmd2 20 c
	.dbsym r cmd1 22 c
	.dbfunc s test1 _test1 fI
;            cmd -> R20
	.even
_test1::
	rcall push_gset1
	mov R20,R16
	.dbline -1
	.dbline 58
; void test1(unsigned char cmd)
;      {
	.dbline 59
;       send_byte(cmd);                     
	mov R16,R20
	rcall _send_byte
	.dbline 60
; 	  PORTC|=0x10;
	sbi 0x15,4
	.dbline 61
;       delay_ms(3000);                                                  
	ldi R16,3000
	ldi R17,11
	rcall _delay_ms
	.dbline -2
	.dbline 62
;       }
L16:
	rcall pop_gset1
	.dbline 0 ; func end
	ret
	.dbsym r cmd 20 c
	.dbfunc s mcu_init _mcu_init fI
	.even
_mcu_init::
	.dbline -1
	.dbline 65
; /*           MCU初始化            */
; void mcu_init(void)
;     {
	.dbline 66
;       MCUCR=0x00;
	clr R2
	out 0x35,R2
	.dbline 67
;       DDRC=0xfd;
	ldi R24,253
	out 0x14,R24
	.dbline 68
;       PORTC=0xf3;
	ldi R24,243
	out 0x15,R24
	.dbline -2
	.dbline 69
;     }     
L17:
	.dbline 0 ; func end
	ret
	.dbfunc s main _main fI
;          count -> R20
;           temp -> R22
;              i -> R10
	.even
_main::
	.dbline -1
	.dbline 72
; /*