ad.s

AD/DA转换,通过外挂LCD显示转换数据数据值

	.module AD.C
	.area text(rom, con, rel)
	.dbfile E:\新建文件夹\ADDA_ICC\cfile\AD.C
	.area data(ram, con, rel)
	.dbfile E:\新建文件夹\ADDA_ICC\cfile\AD.C
_adc_mux::
	.blkb 1
	.area idata
	.byte 1
	.area data(ram, con, rel)
	.dbfile E:\新建文件夹\ADDA_ICC\cfile\AD.C
	.dbsym e adc_mux _adc_mux c
	.area text(rom, con, rel)
	.dbfile E:\新建文件夹\ADDA_ICC\cfile\AD.C
	.dbfunc e init_adc _init_adc fV
	.even
_init_adc::
	.dbline -1
	.dbline 8
; #define AD_C
; #include "includes.h"
; unsigned char  adc_mux = 0x01 ;
; 
; /******************************************************************************/
; /******************************************************************************/
; void init_adc(void)
; {	
	.dbline 12
;     //WDR();       //看门狗计数清零
;     //WDTCR=0x0F;  //使能watchdog,并且，采用2048K分频，典型溢出时间5V时2.1S
;     // ADCSRA=0X00;
;     ADCSRA = 0x00; 
	clr R2
	out 0x6,R2
	.dbline 13
;     ADMUX =(adc_mux&0x1f)|(1<<REFS0)|(1<<REFS1);  //参考电压为内部2.56
	lds R24,_adc_mux
	andi R24,31
	ori R24,192
	out 0x7,R24
	.dbline 16
;     //ADMUX =(adc_mux&0x1f)|(1<<REFS0);  //参考电压为内部AVCC
;     //ADMUX =(adc_mux&0x1f);  //参考电压为引脚AREF
;     ADCSRA=(1<<ADEN)|(1<<ADSC)|(1<<ADIE)|(1<<ADPS2)|(1<<ADPS1) ;//64分频
	ldi R24,206
	out 0x6,R24
	.dbline 17
;     asm("sei");
	sei
	.dbline 18
;     UBRRH = 25;
	ldi R24,25
	out 0x20,R24
	.dbline 19
;     UBRRL = 25;
	out 0x9,R24
	.dbline 20
;     UCSRB=0x18;    
	ldi R24,24
	out 0xa,R24
	.dbline 21
;     UCSRC=0x86;	 
	ldi R24,134
	out 0x20,R24
	.dbline -2
L1:
	.dbline 0 ; func end
	ret
	.dbend
; }
; 
; /******************************************************************************/
; 
; /******************************************************************************/
;  //ADC完成中断
; //#pragma vector = interrupt_handler adc_isr:iv_ADC  
; // define the interrupt handler
; /*#pragma interrupt_handler adc1_isr:iv_ADC
; void adc1_isr(void)
; //#pragma vector=ADC_vect
;   //  __interrupt void adc_isr( void )
; {
;     ADMUX =(adc_mux&0x1f)|(1<<REFS0)|(1<<REFS1);
;     ADCSRA|=(1<<ADSC);//启动AD转换
; }  */