SD.C是用S3C44BOX的SIO口读SD卡,模拟SD.C是用IO口模拟SPI口读SD卡.使用的是S3C44BOX,如果是其他MCU可以对应修改低层的SPI读写函数即可.-SD.C the SIO is S3C44BOX I read SD card, analog IO I SD.C simulation using SPI I read SD card. Using S3C44BOX, if it is the corresponding amendments to other MCU c

说到串行通信,除了 RS232 之外,还有许多其它形式的串行通信,这里介绍 SN 的 SIO 与 EMC 的 SPI 串行通信接口.简介与示例.希望可以帮助理解更多串行通信方式.-Speaking of serial communication, in addition to RS232, there are many other forms of serial communication, where SN introduced the SIO with EMC' s SPI seria