Provided Device Drivers

Portable device drivers are provided for standard media categories:

RAM disk driver. The RAM disk driver supports using internal or external RAM as a storage medium.

SD/MMC driver. The SD/MMC driver supports SD, SD high-capacity and MMC cards, including micro and mini form factors. Either cardmode and SPI mode can be used.

NAND driver. The NAND flash driver support parallel (typically ONFI-compliant) NAND flash devices.

NOR driver. The NOR flash driver support parallel (typically CFI-compliant) and serial (typically SPI) NOR flash devices.

MSC driver. The MSC (Mass Storage Class) driver supports USB host MSC devices (i.e., thumb drives or USB drives) via µC/USB-Host.

Table 11-1 summarizes the drivers, driver names and driver API structure names. If you require more information about a driver, please consult the listed chapter.

Driver	Driver Name	Driver API Structure Name	Reference
RAM disk	`“ram:”`	`FSDev_RAM`	Chapter 13
SD/MMC	`“sd:” / “sdcard:”`	`FSDev_SD_SPI / FSDev_SD_Card`	Chapter 14
NAND	`“nand:”`	`FSDev_NAND`	Chapter 15
NOR	`“nor:”`	`FSDev_NOR`	Chapter 16
MSC	`“msc:”`	`FSDev_MSC`	Chapter 17

Table 11-1 Device driver API structures

If your medium is not supported by one of these drivers, a new driver can be written based on the template driver. Appendix C, “Device Driver” describes how to do this.