用单片机atmega128写的程序，其功能是用ds12c887实现时钟功能-Programs written using SCM atmega128, its function is to use the clock function ds12c887

AVR单片机的ADC和SPI程序，资料很不错，打击可以参考一下，呵呵。-AVR microcontroller ADC and SPI procedures, information is very good, you can refer to blow, huh.