C51常用汇编子程序：ACM-12864汉字液晶显示驱动程序，定时与中断类，Ad转换类，排序类，频率计，串行通信，代码运算类，DES算法演示，C51_table，I2c总线，IIC，键盘与显示类，交通灯，步进电机，电机控制，-C51 compilation of subprograms used: ACM-12864 character LCD driver, timer and interrupt class, Ad Conversi