汇编完成单片机AT89C51的电子时钟有调时和设定闹铃功能，并通过I2C存储到EEPROM中，适合单片机新手,程序从显示单个数码管一点点增加功能，最后完成每步程序都有保留。-SCM AT89C51 complete compilation of electronic clock and set the alarm when there is transfer functions, and stored through I2C EEPROM, suitable for novice microco