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RL-RTX 
RL-FlashFS 
Technical Data NAND Flash Translation Layer Embedded File System Memory Organization Allocation Information File Data Fragments 
Configuring RL-FlashFS 
Source Files Configuration Options File System Flash Drive SPI Flash Drive RAM Drive Memory Card Drive USB Flash Drive NAND Flash Drive Using RL-FlashFS Using Flash Devices Flash Driver Sector Layout Converting FlashPrg.c Converting FlashDev.c Limitations When Using Internal Flash Using SPI Flash Devices SPI Flash Driver SPI Sector Layout Using RAM Devices Using Memory Card Devices MCI Driver SPI Driver Using FlashFS with USB Devices FAT Driver Using NAND Devices NAND Driver NAND Page Data Layout Function Overview File I/O Routines File Maintenance Routines File Time Support Routines Flash Driver Routines FAT Driver Routines MCI Driver Routines SPI Driver Routines NAND Driver Routines IOC Interface Routines System Routines 
RL-TCPnet RL-CAN RL-USB Example Programs Library Reference AppendixSPI Driver Routines
SPI driver routines are the functions to communicate with a memory card or SPI data Flash device. The SPI interface routines are not reentrant.
| Routine | Description |
|---|---|
| Init | Initializes the SPI controller. |
| UnInit | Uninitializes the SPI controller. |
| Send | Send and receive a byte over the SPI interface. |
| SendBuf | Sends a block of data to the SPI interface. |
| RecBuf | Receives a block of data from the SPI interface. |
| BusSpeed | Set the desired baud rate speed for the SPI interface. |
| SetSS | Enables or disables SPI Slave Select signal. |
| CheckMedia | Checks the SD/MMC media status (Card Inserted, Write Protected). |
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