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標題: 關于5410A/D單片機的A/D轉換測五伏電壓的C51程序 [打印本頁]

作者: sjt 時間: 2010-4-12 16:16
標題: 關于5410A/D單片機的A/D轉換測五伏電壓的C51程序

匯編語言看懂了，但是改不成C51的程序，請各位高手能幫我一下，謝謝！

LED_MCU_START EQU P3.7

ADC_CONTR EQU 0C5H

ADC_DATA EQU 0C6H

;ADC_LOW2 EQU 0BEH

P1M0 EQU 91H

P1M1 EQU 92H

ADC_Power_On_Speed_Channel_0 EQU 11100000B

ADC_Power_On_Speed_Channel_1 EQU 11100001B

ADC_Power_On_Speed_Channel_2 EQU 11100010B

ADC_Power_On_Speed_Channel_3 EQU 11100011B

ADC_Power_On_Speed_Channel_4 EQU 11100100B

ADC_Power_On_Speed_Channel_5 EQU 11100101B

ADC_Power_On_Speed_Channel_6 EQU 11100110B

ADC_Power_On_Speed_Channel_7 EQU 11100111B

ADC_Channel_0_Result EQU 30H

ADC_Channel_1_Result EQU 31H

ADC_Channel_2_Result EQU 32H

ADC_Channel_3_Result EQU 33H

ADC_Channel_4_Result EQU 34H

ADC_Channel_5_Result EQU 35H

ADC_Channel_6_Result EQU 36H

ADC_Channel_7_Result EQU 37H

ORG 0000H

LJMP MAIN

ORG 0050H

MAIN:

CLR LED_MCU_START

MOV SP, #7FH

ACALL　Initiate_RS232

ACALL ADC_Power_On

ACALL Set_P12_Open_Drain

ACALL Set_ADC_Channel_2

ACALL Get_AD_Result

ACALL Send_AD_Result

ACALL Set_P12_Normal_10

MOV A, ADC_Channel_2_Result

CPL A

MOV P1, A

Wait_Loop:

SJMP Wait_Loop

Initiate_RS232;

CLR ES

MOV TMOD, #20H

MOV SCON, #50H

MOV TH1, #0FBH

MOV TL1, #0FBH

SETB TR1

RET

Send_Byte:

CLR TI

MOV SBUF, A

Send_Byte_Wait_Finish:

JNB TI, Send_Byte_Wait_Finish

CLR TI

RET

ADC_Power_On:

PUSH ACC
ORL ADC_CONTR, #80H

MOV A, #20H

ACALL Delay

POP ACC

RET

;設置P1.2，設置A/D通道所在的I/O為開漏模式

Set_P12_Open_Drain;

PUSH ACC

MOV A, #00000100B

ORL P1M0, A

ORL P1M1, A

POP ACC

RET

;設置P1.2，為普通IO

Set_P12_Normal_IO

PUSH ACC

MOV A, #11111011B

ANL P1M0, A

ANL P1M1, A

POP ACC

RET

Set_ADC_Channel_2;

MOV ADC_CONTR, #ADC_Power_On_Speed_Channel_2

MOV A, #05H

ACALL Delay

RET

Send_AD_Result;

PUSH ACC

MOV A, ADC_Channel_2_Result

ACALL Send_Byte

POP ACC

RET

Get_AD_Result:

PUSH ACC
MOV ADC_DATA, #0

ORL ADC_CONTR, #00001000B

Wait_AD_Finishe:

MOV A, #00010000B

ANL A, ADC_CONTR

JZ Wait_AD_Finishe

ANL ADC_CONTR, #11100111B

MOV A, ADC_DATA

MOV ADC_Channel_2_Result, A

POP ACC

RET

Delay:

PUSH 02

PUSH 03

PUSH 04

MOV R4, A

Delay_Loop0:

MOV R3, #200

Delay_Loop1;

MOV R2, #249

Delay_Loop:

DJNZ R2, Delay_Loop

DJNZ R3, Delay_Loop1

DJNZ R4, Delay_Loop0

POP 04

POP 03

POP 02

RET

END

[此貼子已經被作者于2010-4-13 9:25:59編輯過]

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