USB and micro controller

ftdi

martin

You could take a look at the U4x1 products at

It might help to provide a little information about what it is that you want to do, and how you wish to communicate. One line set high or low is "communication".

-Rob

One simple way is to use a USB-serial converter (built into a cable) and use serial communications with a micro that has a hardware or software UART.

You can buy chips similar to the types used in the above and integrate the chip into your project.

Or you could use a micro which has USB (peripheral) support built-in. A (talented) friend was able to throw together a HID class device pretty quickly and cheaply using an appropriate PIC18F. Freescale has a lot of parts aimed at this market.

That's assuming you just need simple non-critical communication. If you need high-speed or isochronous communication, for example, it will be different.

Best regards, Spehro Pefhany

there are some new PICs that have a USB controller built in - very easy interface - the drivers (for the PC end of things) are available as a download from Microchip

Google :)

If you want one of these preprogrammed (with a boot loader and a simple program to perform simple I/O) take a look at the Bit Whacker at SparcFun:

Looks like an easy thing to start with, unless the original poster is wanting to do something for a class, then buying this, more or less ready made solution wouldn't be a good idea.

Jeff

this site might get you started - it also gives an assembly listing for handling USB with a 16C745

this has a large range of USB intefacing products. You might find something there that suits your needs.

Also have a look at Jan Axelson's USB page at:

Don...

I'm not sure about the speed.. Untill now, I've only tested with rs-232, at a 115200 rate. I want to use USB, because serial ports aren't used that much anymore on computers.. How fault tolerant is USB at a compared speed of 115200 (rs-232)?