自制AT89S51,52ISP編程器

?;波特率57600
;for at89c51系列
;增加AT89S51串行編程功能
;刪除了燒at89c2051系列芯片的代碼

VPP???????? EQU???? P3.2;接三極管，vpp電壓控制
VPP_12????? EQU???? P3.2;5-12V CONTROL FOR 89C51
RST???????? EQU???? P3.5;
PROG??????? EQU???? P3.3;編程脈沖控制
BUSY??????? EQU???? P3.4;

MOSI??????? EQU???? P1.5
MISO??????? EQU???? P1.6
SCK???????? EQU???? P1.7

F_VPP?????? EQU???? 00H ;vpp電壓標志
F_RST?????? EQU???? 01H ;RST電壓標志
F_RXALL???? EQU???? 02H

TX0???????? EQU???? 30H;
TX1???????? EQU???? 31H;
TX2???????? EQU???? 32H;發(fā)送緩存
TX3???????? EQU???? 33H;30-41 18BYTES BUFFER
TX4???????? EQU???? 34H
TX17??????? EQU???? 41H

RX0???????? EQU???? 42H;42-53 18BYTES BUFFER
RX1???????? EQU???? 43H;
RX2???????? EQU???? 44H;
RX3???????? EQU???? 45H;接收緩存
RX4???????? EQU???? 46H
RX17??????? EQU???? 53H

ADDRESS_L?? EQU???? 10H;
ADDRESS_H?? EQU???? 11H;

PARAM0????? EQU???? 12H
PARAM1????? EQU???? 13H
PARAM2????? EQU???? 14H
PARAM3????? EQU???? 15H
RET0??????? EQU???? 16H
RET1??????? EQU???? 17H
RET2??????? EQU???? 18H
RET3??????? EQU???? 19H

BITS1?????? EQU???? 22H
BITS2?????? EQU???? 23H

SOUT??????? EQU???? 24H
SIN???????? EQU???? 25H

SOUT1?????? EQU???? 26H
SOUT2?????? EQU???? 27H
SOUT3?????? EQU???? 28H
SOUT4?????? EQU???? 29H

SIN1??????? EQU???? 2AH
SIN2??????? EQU???? 2BH
SIN3??????? EQU???? 2CH
SIN4??????? EQU???? 2DH

_R0???????? EQU???? 08H
_R1???????? EQU???? 09H
;RX1表示器件型號：0-C51,1-C52,2-C55,10-S51,11-S52,12-S55
C51???????? EQU???? 0H
C52???????? EQU???? 1H
C55???????? EQU???? 2H

S51???????? EQU???? 10H
S52???????? EQU???? 11H
S55???????? EQU???? 12H

WAIT_VOL??? EQU???? 55H;等待電壓穩(wěn)定延時系數(shù)
??????????? ORG???? 0000H
??????????? SJMP??? START
??????????? ORG???? 0023H
??????????? ;SJMP?? RX_INT