isl1208 program using c for clock

ISL1208汇编代码：包括时钟初始化，读数据，写数据子程序。-ISL1208 assembly code include: clock initialization, read data, write data subprogram.

实时时钟芯片ISL1208的应用，单片机普通IO口模拟I2C应用-The application of the real-time clock chip ISL1208 microcontroller ordinary analog IO I2C application, written as a header file.