Kernel description
UM1743
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DocID026161 Rev 4
For the FAT FS file system, the page size is fixed to 512 bytes. USB Flash disks with higher
page size are not supported.
The Storage units are built around the USB host library in high speed and the microSD BSP
drivers; the software architecture is shown in
Figure 21. Software architecture
The FatFS is mounted upon the USB Host mass storage class and the SD BSP driver to
allow an abstract access to the physical media through standard I/O methods.
f_putc
Write a character
f_puts
Write a string
f_printf
Write a formatted string
Table 2. File system interface APIs (continued)
Function
Description
