STC8A8K64内部上拉上拉电阻如何启用
大佬们,帮我看下这段芯片内部上拉电阻启用的代码对吗?我用了感觉没有效果MOV P0M0,#00H
MOV P0M1,#00H
MOV P1M0,#00H
MOV P1M1,#00H
MOV P2M0,#00H
MOV P2M1,#00H
MOV P3M0,#00H
MOV P3M1,#00H
MOV P_SW2,#80H
MOV DPTR,#0FE10H
MOV A,#0FFH
MOVX @DPTR,A
MOV DPTR,#0FE11H
MOV A,#0FFH
MOVX @DPTR,A
MOV DPTR,#0FE12H
MOV A,#0FFH
MOVX @DPTR,A
MOV DPTR,#0FE13H
MOV A,#0FFH
MOVX @DPTR,A
MOV P_SW2,#00H
MOV AUXR,#00H
ORL P_SW2, #80H;允许访问XSFR
MOVDPTR,#0FE10H ; P0PU
MOV A,#0FFH ; P0口允许全部上拉
MOVX @DPTR, A
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