参数资料
型号: 101-1226
厂商: Rabbit Semiconductor
文件页数: 112/168页
文件大小: 0K
描述: RCM3900 DEV KIT UNIVERSAL
标准包装: 1
系列: RabbitCore 3900
类型: MPU 模块
适用于相关产品: RCM3900
所含物品: RabbitCore 模块、开发板、交流适配器、缆线和 Dynamic C? 光盘
其它名称: 316-1137
RabbitCore RCM3900 User’s Manual
48
5.2.6 microSD Card Drivers
The Dynamic C LIB\SDflash\SDFLASH.LIB library is used to interface to microSD
Card memory devices on an SPI bus. More information on these function calls is available
in the Dynamic C Function Reference Manual.
Application developers are cautioned against modifying the BIOS code to insert application-
specific external I/O (IOE) instructions before the GOCR register and its shadow are initial-
ized by the standard BIOS code. Such IOE code will cause the microSD Card select to
toggle, possibly interfering with the microSD Card operation.
The microSD Card is ideally suited to store files with a directory structure. The Dynamic
C FAT file system included with Dynamic C provides support for a file system and for for-
matting the microSD Card for use in a Rabbit-based system. This allows files to be read
and written in a PC-compatible manner. The supporting documentation for the Dynamic C
FAT File System and the sample programs in the SAMPLES\FileSystem\FAT folder
illustrate the use of the Dynamic C FAT file system.
NOTE: Dynamic C has a utility for partitioning storage devices. Rabbit recommends that
you do not partition the microSD Card since doing so would make it not PC-compati-
ble.
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