PXA255在wince4.2下读写I2C接口实时钟(RTC)以设定系统时间。可以用来学习I2C工作流程或RTC工作原理。替换wince目录下kernal\hal\arm下的同名文件即可-PXA255 under Wince4.2 I2C interface to read and write real-time clock (RTC) in order to set system time. This code can be used to study the I2C/RTC work flo

基于YF PXA255开发板的eboot代码，增加了使用SD卡下载镜像的功能，下载速度快，25M的镜像仅需30s，可以用于省略网口的小型化开发；同时增加了eboot启动时读取外接I2C接口RTC时间的功能-YF PXA255 development board-based eboot code. The use of SD card to download the image file function is added with fast speed: 25M image only 30s,