ds1302库文件

# DS1302 RTC library for Arduino This project is a library for the [Arduino](http://arduino.cc) platform. It provides a simple interface to the [Maxim DS1302](http://www.maximintegrated.com/en/products/digital/real-time-clocks/DS1302.html) timekeeping chip. It allows Arduino projects to keep accurate time easily. ## Features Of the features on the DS1302, this library provides support for: * Setting and retrieving the time, using the burst modes. * Setting and clearing the Write Protect (WP) flag. * Setting and clearing the Clock Halt (CH) flag. * Setting and accessing the 31 bytes of static RAM. Single-byte and multi-byte (burst) modes are supported. * Low-level register access. Trickle charging support is the only major feature of the DS1302 not directly supported by this library. However, trickle charging can be enabled using the low-level register access functions if desired. ## Examples and documentation The [header file](DS1302.h) is well-commented, and the [examples](examples) directory contains example sketches for immediate use. ## Installing Place the `DS1302` directory in the `libraries` subdirectory of your Arduino sketch directory. On OS X, for example, your sketch directory might be: /Users/you/Documents/Arduino In that case, you should put the `DS1302` directory at: /Users/you/Documents/Arduino/libraries/DS1302