mBed os 5 - write read UBS stick

Mbed OS
,
1

dear community,

I need to write and read some files on a external flash, a commercial UBS stick.

my setup:
LPC1768
mbedos_5.15

I can’t find any working example for mBed os 5
https://os.mbed.com/docs/mbed-os/v5.15/apis/usbmsd.html
I’ve been trying many different solutions without any success.
why here it’s given only one example with a sd card?

I can manage to work with this library
https://os.mbed.com/cookbook/ConfigFile
I just need to operate with files on the USB stick, rather than on the local flash, risking to burn it after few thousands of cycles…

thank you in advance

2

Hello,

The constructor of the USBMSD accept any BlockDevice so you can combinete it with any BlockDevice APIs from Storage - APIs
But from my point of view for the USB Stick you need a USBHOST library. But Mbed provide only USBDEVICE APIs.

The easiest for the moment is to use an SD card - SDBlockDevice - APIs | Mbed OS 5 Documentation.

You can also found some old library like USBHOST - USBHOST lib for STM | Mbed where also exit LPC1768 implementation. I have no idea if it works or not.

BR, Jan