background image
宏晶科技:www.MCU-Memory.com   Mobile:13922805190(姚永平)   Tel:0755-82948409    Fax: 0755-82944243
宏晶科技:专业单片机 / 存储器供应商   www.MCU-Memory.com   STC12C5410AD 系列 1T 8051 单片机中文指南
110
TEST_CONST EQU
5AH
;TEST_RAM EQU
03H
ORG
0000H
LJMP INITIAL
ORG
0050H
INITIAL:
MOV
R0,
#253
MOV
R1,
#3H
TEST_ALL_RAM:
MOV
R2,
#0FFH
TEST_ONE_RAM:
MOV
A,
R2
MOV
@R1, A
CLR
MOV
A,
@R1
CJNE A,
2H,
ERROR_DISPLAY
DJNZ R2,
TEST_ONE_RAM
INC
R1
DJNZ R0,
TEST_ALL_RAM
OK_DISPLAY:
MOV
P1,
#11111110B
Wait1:
     SJMP Wait1
ERROR_DISPLAY:
MOV
A,
R1
MOV
P1,
Wait2:
     SJMP Wait2
     END
      
内部常规 256 字节 RAM 间接寻址测试程序