Interface device for simple USB drive access?

Chris_D

I am wondering why there isn't a simple interface device to read from the USB drives?· These things are far more common than SD drives and they will work with any computer that has a USB port.·

Having no clue how to make one, I searched around to see if anything existed and didn't find any solutions.· I would think there is a market for such a product.·Frankly, I would buy one right now if it allowed me to read files from the drive using either a simple SPI or UART type serial interface.· I know there is the USB dataloger / Object in a cog method, but that uses up a lot of resources on the prop - so a magic serial interface to a USB drive would be more appealing.

Has anyone seen such an device or thought about making one?

Chris

Mike Green

The Parallax Memory Stick Datalogger is a USB host device that is designed specifically to read/write a USB mass storage device using either an asynchronous serial interface or an SPI interface. Vinculum also makes a USB host device, the VDrive2. There's a version that includes an .MP3 player, the VMusic2. These all use the same USB controller chip made by Vinculum. This is in the process of being upgraded, so there's a Vinculum II chip with added capabilities and various products that use the Vinculum I will be upgraded as well. See Vinculum's website for details.

Post Edited (Mike Green) : 6/5/2010 7:48:46 PM GMT

StefanL38

simplest way to to this would be to take one propeller-chip to connect to the USB-datalogger and to a second propeller
just using a simple serial interface

next thing could be the Vinculum SPI Driver

http://www.vinculum.com/

best regards

Stefan