本程序是用汇编语言实现数字时钟功能的.通过修改8259中断控制器的中断屏蔽寄存器(21H号端口) 打开时间中断, 实时中断, 键盘中断-this procedure is used assembly language digital clock function. By amending the 8259 interrupt controller interrupt masking registers (21H, port) to open the interruption time, real

一个浴霸控制器程序，步进电机和485通讯，相关行业可以参考！-it is a program of a bathroom heater,including step motor and 485 communication, it is good for your reference!