字节写的一些atmega128单片机程序模块，编译环境是ICCAVR。包括uart0、1602（四线操作和八线操作）、ds1322、ds18b20、内部adc、内部E2PROM和延时函数模块等。-Byte write some atmega128 microcontroller program modules, the compiler environment is ICCAVR. Including uart0, 1602 (four-wire operation and eight-wire

example atmega128 i/o, adc, usart, RTC, etc