The driver of 8255A mainly involves setting the ports A, B, C and control words. The 8255A specific driver mainly includes the following codes and functions. (1) Pin definition and function declaration. The pin definition refers to the port description of port A, port B, port C and control word, and the definition of the status flag. The declaration of the function includes the read/write function and control word of port A, port B, port C, and the C port configuration function. The specific code is as follows: Copper Flat Wire Rolling Machine Copper Flat Wire Rolling Machine,Special Shaped Copper Strip Machine,Ultra Thin Copper Strip Machine,Copper Strip Annealing Equipment Jiangsu Lanhui Intelligent Equipment Technology Co., Ltd , https://www.lanhuisolar.com