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.

The table below summarizes the drivers, driver names and driver API structure names. If you require more information about a driver, please consult the listed chapter.

Table - Device driver API structures

Driver

Driver Name

Driver API Structure Name

Reference

RAM disk

“ram:”

FSDev_RAM

RAM Disk Driver

SD/MMC

“sd:” / “sdcard:”

FSDev_SD_SPI / FSDev_SD_Card

SD/MMC Driver

NAND

“nand:”

FSDev_NAND

NAND

NOR

“nor:”

FSDev_NOR

NOR

MSC

“msc:”

FSDev_MSC

MSC


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