附件例程供参考
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- F_Main:
- MOV WTST, #00H ;设置程序指令延时参数,赋值为0可将CPU执行指令的速度设置为最快
- MOV CKCON,#00H ;提高访问XRAM速度
- ORL P_SW2,#080H ;使能访问XFR
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- MOV P0M1, #00H ;设置为准双向口
- MOV P0M0, #00H
- MOV P1M1, #00H ;设置为准双向口
- MOV P1M0, #00H
- MOV P2M1, #00H ;设置为准双向口
- MOV P2M0, #00H
- MOV P3M1, #00H ;设置为准双向口
- MOV P3M0, #00H
- MOV P4M1, #00H ;设置为准双向口
- MOV P4M0, #00H
- MOV P5M1, #00H ;设置为准双向口
- MOV P5M0, #00H
- MOV P6M1, #00H ;设置为准双向口,P66设置推挽输出
- MOV P6M0, #40H
- MOV P7M1, #00H ;设置为准双向口
- MOV P7M0, #00H
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- MOV WR0, #WORD2 P6SR
- MOV WR2, #WORD0 P6SR
- MOV A, #0BFH ;P66电平快速转换
- MOV @DR0, R11
复制代码
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