USB Flash Drive

USB Flash Drive options allow configuring RL-FlashFS to use USB Flash devices. Set the options manually or use the Configuration Wizard.

RL-FlashFS supports two USB Flash drives. Identical options exist for both drives and can operate at the same time.

USB Flash Drive Options

To following options can be set:

USB Flash Drive 0 enables support for Mass Storage device.

#define USB0_EN     1                    // 0=disable; 1=enable

File System Cache enables or disables data caching and specifies the cache buffer size in KBytes. Data caching might increase the file r/w speed several times. Turn off data caching if the application is low on memory and the file read/write speed is not important.
```
#define USB0_CASZ   8
```
FAT Journal protects the file system from a potential damage during power failure and keeps the system in a consistent state. This option does not protect files that are written during power failure.
```
#define USB0_FSJ    1                    // 0=disable; 1=enable
```
Default Drive [U0:] enables the USB Flash Drive 0 as a default system drive. This drive is used, when a drive letter is not specified in a file name. The drive label U is considered as U0.
```
#define USB0_DEF    1                    // 0=disable; 1=enable
```