usb to rs232 for stk500

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#1
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My computer has only 1 rs232 port. Are there any usb to rs232 adapters that work with stk500? Its very annoying to switch all the time between the control and spare port.

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You can avoid reality, for a while.  But you can't avoid the consequences of reality! - C.W. Livingston

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Thank you, ill try one of those.

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I probably should have been more specific...

I've got 3 of the following.

http://apple.clickandbuild.com/cnb/shop/ftdichip?productID=89&op=catalogue-product_info-null&prodCategoryID=4

They work perfectly, for everything I've tried then with, including the STK500 and the older ATAVRISP serial programmer.

Though, any of the FTDI USB --> RS232 converters should work equally well, as they all use the same USB engine.

You can avoid reality, for a while.  But you can't avoid the consequences of reality! - C.W. Livingston

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Carl, was there a USA distributor that you bought them from?

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kmr wrote:
Carl, was there a USA distributor that you bought them from?

I got all of my FTDI USB --> RS232 adapters from Parallax - the ones that I linked to in my second post.

But since Parallax came up with their own "Open PCB " design, I haven't seen the FTDI production model listed on the Parallax web-site.

It's a shame too, as they are small, durable, and very portable. I think Parallax sold them for about $30.00US. But the price seems less buying directly from FTDI.

I suppose if I were to buy more of these, I'd go directly to FTDI and order several to cover the shipping and import tax.

I've also got a Radio Shack USB --> RS232 adapter, as well. But I've never tried it - so I can't really comment on it's performance, or who's USB engine us used within it.

You can avoid reality, for a while.  But you can't avoid the consequences of reality! - C.W. Livingston

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Thanks, Carl, I appreciate the information!

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I bought the Radio Shack version and it would not work with my STk500. I then bought a KEYSPAN adaptor and it worked well.

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I also just bought a Keyspan adaptor from newegg.com since my laptop doesnt have a serial port. I heard from someone that uses one that they work great and that some adaptors dont work.

Brian

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I use a Keyspan USB to RS-232 adapter and it works fine.

Mine is model: USA-19HS It is a smoked gray plastic case about 4 x 8 cm.

KeySpan

JC

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I'm using a FTDI-based USB-4COM USB-to-4xRS232 from Easysync. Works well with the STK500, among other things...