Introduction - If you have any usage issues, please Google them yourself
this procedure is mandated keyboard figures show, respectively, according to The Chronicle edition of the four small keyboard, the right side of the digital control rotation showed the number 0, 1, 2, 3, in order to facilitate the process of talks We each were No. 1, the actual procedure, it was not behind the numbers. Clauses 1, 2, 3 is OK MCU initialization, the general procedures are the beginning of this. transcended the role of 00-30h address unit, which unit is assigned to the special use of the register. No. 6 line p3 sent 0ffh, is the role of these ports p3.0-margin p3.7 home, The Chronicle version because the keyboard Then in p3 mouth, only when the serial port to, we press the keyboard, Well, this port was to short-circuit, was forced into port 0. According to the analysis of all