Provided Device Drivers

Unable to render {include} The included page could not be found.

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 9-1 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 11, on page 133
SD/MMC	“sd:” / “sdcard:”	FSDev_SD_SPI / FSDev_SD_Card	Chapter 12, on page 137
NAND	“nand:”	FSDev_NAND	Chapter 13, on page 161
NOR	“nor:”	FSDev_NOR	Chapter 14, on page 199
MSC	“msc:”	FSDev_MSC	Chapter 15, on page 219

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” on page 412 describes how to do this.