Reading data from thumb drive
Jonathan
Posts: 1,023
Hi All,
I'm getting frustrated trying to read data from a USB thumb drive, using the Parallax memstick adapter. I can open, delete·and write, but I can't read. I've tried the "usbdrive" object and imitating the Basic Stamp demo.
With the usbdrive object, is this the proper usage for read?
This always returns 0
I have also tried:
My forehead has "QWERTY" stamped on it. What am I doing wrong?
Thanks!
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www.madlabs.info - Home of the Hydrogen Fuel Cell Robot
I'm getting frustrated trying to read data from a USB thumb drive, using the Parallax memstick adapter. I can open, delete·and write, but I can't read. I've tried the "usbdrive" object and imitating the Basic Stamp demo.
With the usbdrive object, is this the proper usage for read?
byte usbData[noparse][[/noparse]14] thumb.read($01,@usbData)
This always returns 0
I have also tried:
temp := read_byte PUB read_byte: fileData | temp thumb.rxflush thumb.str(string("RDF ")) thumb.tx($00) thumb.tx($00) thumb.tx($00) thumb.tx($01) thumb.tx(CR) fileData := thumb.rx repeat until temp == CR temp := thumb.rx RETURN
My forehead has "QWERTY" stamped on it. What am I doing wrong?
Thanks!
▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
www.madlabs.info - Home of the Hydrogen Fuel Cell Robot