main.lis

ATMEGA128的ADC驱动程序

                        .module main.c
                        .area text(rom, con, rel)
 0000                   .dbfile D:\avrvi\AVRVi_m128_Starter_Kit\ADC\source\main.c
 0000                   .dbfunc e adc_init _adc_init fV
                        .even
 0000           _adc_init::
 0000                   .dbline -1
 0000                   .dbline 13
 0000           ; /************************************************
 0000           ; 文件：main.c
 0000           ; 用途：
 0000           ; 注意：内部8M晶振
 0000           ; 创建：2008.4.1
 0000           ; 修改：2008.4.1
 0000           ; Copy Right  (c)  www.avrvi.com  AVR与虚拟仪器
 0000           ; ************************************************/
 0000           ; 
 0000           ; #include "config.h"
 0000           ; float adc_result;
 0000           ; void adc_init(void)
 0000           ; {
 0000                   .dbline 14
 0000           ;  ADCSRA = 0x00; //disable adc
 0000 2224              clr R2
 0002 26B8              out 0x6,R2
 0004                   .dbline 15
 0004           ;  ADMUX = (1<<REFS0)|(1<<ADLAR);
 0004 80E6              ldi R24,96
 0006 87B9              out 0x7,R24
 0008                   .dbline 16
 0008           ;  ACSR = (1<<ACD);
 0008 80E8              ldi R24,128
 000A 88B9              out 0x8,R24
 000C                   .dbline 17
 000C           ;  ADCSRA = (1<<ADEN);
 000C 86B9              out 0x6,R24
 000E                   .dbline -2
 000E           L1:
 000E                   .dbline 0 ; func end
 000E 0895              ret
 0010                   .dbend
 0010                   .dbfunc e get_adc _get_adc fV
 0010           ;          value -> R20
 0010           ;    adc_channel -> R20,R21
                        .even
 0010           _get_adc::
 0010 0E940000          xcall push_gset1
 0014 A801              movw R20,R16
 0016                   .dbline -1
 0016                   .dbline 21
 0016           ; }
 0016           ; 
 0016           ; void get_adc(unsigned adc_channel)
 0016           ; {
 0016                   .dbline 23
 0016           ;  unsigned char value; 
 0016           ;  adc_init();
 0016 F4DF              xcall _adc_init
 0018                   .dbline 24
 0018           ;  ADMUX += adc_channel;
 0018 27B0              in R2,0x7
 001A 3324              clr R3
 001C 240E              add R2,R20
 001E 351E              adc R3,R21
 0020 27B8              out 0x7,R2
 0022                   .dbline 25
 0022           ;  ADCSRA |= (1<<ADSC);
 0022 369A              sbi 0x6,6
 0024                   .dbline 27
 0024           ;  
 0024           ;  delay_nus(100);
 0024 04E6              ldi R16,100
 0026 10E0              ldi R17,0
 0028 0E940000          xcall _delay_nus
 002C                   .dbline 28
 002C           ;  value=ADCH;
 002C 45B1              in R20,0x5
 002E                   .dbline 29
 002E           ;  adc_result=(value*4.98)/256; 
 002E 00E0              ldi R16,<L3
 0030 10E0              ldi R17,>L3
 0032 0E940000          xcall lpm32
 0036 3A93              st -y,R19
 0038 2A93              st -y,R18
 003A 1A93              st -y,R17
 003C 0A93              st -y,R16
 003E 042F              mov R16,R20
 0040 1127              clr R17
 0042 0E940000          xcall int2fp
 0046 3A93              st -y,R19
 0048 2A93              st -y,R18
 004A 1A93              st -y,R17
 004C 0A93              st -y,R16
 004E 0E940000          xcall empy32fs
 0052 00E0              ldi R16,<L4
 0054 10E0              ldi R17,>L4
 0056 0E940000          xcall lpm32
 005A 3A93              st -y,R19
 005C 2A93              st -y,R18
 005E 1A93              st -y,R17
 0060 0A93              st -y,R16
 0062 0E940000          xcall div32f
 0066 10930100          sts _adc_result+1,R17
 006A 00930000          sts _adc_result,R16
 006E 30930300          sts _adc_result+2+1,R19
 0072 20930200          sts _adc_result+2,R18
 0076                   .dbline -2
 0076           L2:
 0076 0E940000          xcall pop_gset1
 007A                   .dbline 0 ; func end
 007A 0895              ret
 007C                   .dbsym r value 20 c
 007C                   .dbsym r adc_channel 20 i
 007C                   .dbend
 007C                   .dbfunc e main _main fV
                        .even
 007C           _main::
 007C                   .dbline -1
 007C                   .dbline 33
 007C           ; }
 007C           ; 
 007C           ; void main(void)
 007C           ; { 
 007C                   .dbline 34
 007C           ;  HC_595_init();
 007C 0E940000          xcall _HC_595_init
 0080 0DC0              xjmp L7
 0082           L6:
 0082                   .dbline 37
 0082                   .dbline 38
 0082 01E0              ldi R16,1
 0084 10E0              ldi R17,0
 0086 C4DF              xcall _get_adc
 0088                   .dbline 39
 0088 20910200          lds R18,_adc_result+2
 008C 30910300          lds R19,_adc_result+2+1
 0090 00910000          lds R16,_adc_result
 0094 10910100          lds R17,_adc_result+1
 0098 0E940000          xcall _Seg7_Led_float
 009C                   .dbline 40
 009C           L7:
 009C                   .dbline 36
 009C F2CF              xjmp L6
 009E           X0:
 009E                   .dbline -2
 009E           L5:
 009E                   .dbline 0 ; func end
 009E 0895              ret
 00A0                   .dbend
                        .area bss(ram, con, rel)
 0000                   .dbfile D:\avrvi\AVRVi_m128_Starter_Kit\ADC\source\main.c
 0000           _adc_result::
 0000                   .blkb 4
 0004                   .dbsym e adc_result _adc_result D
                        .area lit(rom, con, rel)
 0000           L4:
 0000 00008043          .word 0x0,0x4380
 0004           L3:
 0004 295C9F40          .word 0x5c29,0x409f