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sc_sdcard:SD卡组件
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2021-05-06
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SD卡库 稳定发布: 1.0.1 地位: α 维护者: Interactive_matter 描述: SD卡驱动程序库 主要特征 使用SPI接口或本机4位接口在SD卡上读取和写入数据操作 FatFS的端口-FAT文件系统模块R0.09(C)ChaN,2011年( )。 当心:长文件名的FAT可能受多项专利保护(特别是Microsoft拥有的那些专利)。 使用此代码可能需要获得专利持有人的许可 注意:4位SD协议受SD协会的管辖。 在商业产品上启用后,可能需要许可证。 (请参阅: : ) 具有4位接口多块读取速度的基准速度约为4 MB /秒。 使用SPI时为1.2MBytes /秒。 去做 4位接口以低时钟速度(最大400KHz)进行初始化。 使用SDXC卡,符合SD物理层1.0版的卡和MMC卡(目前仅通过SPI接口支持)进行测试。 支持4位和8位总线上的MMC
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