Redpitaya Forum

Hello

I try to save my measurement data to an usb memory stick in the usb slot. B But my Console window sometimes get killed. did i haven't enough power? I use a normal usbstick 4GB FAT (the device is dicovered). I power my PItaya with a 5V/2A Converter. The same problem occours with my wlan stick sometimes it works sometimes not...
Is there a way to use a DC check or exterenl power or something?
Thanks for help

Greez kungla

I would suggest that you try to replace your USB cable or maybe also try with another power supply.
Some USB cables have very thin wires that causes big voltage drops at higher currents and are therefore suitable only for data transfer.

Hello,

How did you mount your USB device ? I try to mount my USB kay (4GB - FAT32) since this morning but without success ...

Did you mount it manually with some commands directly on ssh, or did you create some lines of C code to do it ?

Thanks in advance

HI

First you should format your Stick as FAT and not to much storage i use a 4GB Stick

Then modife the rCS Boot FIle with these comands:
o mkdir /mnt/usb #Generate a subdirection
o mount /dev/sda1 /mnt/usb #mounting usb device

then u can use the acquire command with your new direction

hope it will work, if not ask again

Hi !

Thank you for your answer ! I'll try it immediately. I'll do a feedback soon.

Hi again

Thank you, it works perfectly ! But, I have a question. Did the USB device mount only when the RP boots ?

Because when I disconnect the USB storage and I reconnect it, it changes his location (sda1 --> sba1). Is it normal ?

No I haven't this problem. Did you format your device?

Yes, I format it in FAT format and I tried with FAT32.

make a post of your rCS file pls

In my rCS file, I just have the 2 lines that you mentionned before with in the top an "echo" to indicate that we can add some commands line.