A
Arthur Rhodes
I have a project in mind to build a device with a USB interface.
The device would store some data in an eeprom. There would be some
synchronization software written for it and residing on a computer.
When the device is plugged into a USB port on the computer the
synchronization software would launch and send the most current
data to the device, which would replace the data in the eeprom
with this new data. Basically, a very common kind of paradigm,
like a PDA or an ipod. Only, I'm only going to sync a fairly small
amount of data, like 10KB or less.
I'm favoring AVR microcontrollers programmed in C.
My question is, where to start. What are the common USB interface
chips people use for this? I'm looking for a cheap one, since the
application is not demanding. I've seen USB interfaces selling for
as much as $8.00 a pop, but I think that's too much for what I
need.
Some of the AVR microcontrollers have USB interfaces built in. That
would be great, but I think they are geared toward more demanding
applications and tend to be rather expensive. I just want something
standard, cheap, and simple, if there is such a thing. Also, it
would be nice if the tools for it are not necessarily tied to any
one OS.
Any pointers to an overview, or example projects, or anything to
point me in the right direction would be very much appreciated.
The device would store some data in an eeprom. There would be some
synchronization software written for it and residing on a computer.
When the device is plugged into a USB port on the computer the
synchronization software would launch and send the most current
data to the device, which would replace the data in the eeprom
with this new data. Basically, a very common kind of paradigm,
like a PDA or an ipod. Only, I'm only going to sync a fairly small
amount of data, like 10KB or less.
I'm favoring AVR microcontrollers programmed in C.
My question is, where to start. What are the common USB interface
chips people use for this? I'm looking for a cheap one, since the
application is not demanding. I've seen USB interfaces selling for
as much as $8.00 a pop, but I think that's too much for what I
need.
Some of the AVR microcontrollers have USB interfaces built in. That
would be great, but I think they are geared toward more demanding
applications and tend to be rather expensive. I just want something
standard, cheap, and simple, if there is such a thing. Also, it
would be nice if the tools for it are not necessarily tied to any
one OS.
Any pointers to an overview, or example projects, or anything to
point me in the right direction would be very much appreciated.