Synth-DIY Yahoo! Groups Archives

Re: USB interfacing

2008-09-02 by David Appleton

There are a number of factors that determine the RS232's max speed [including cable length and processor clock speed].  I think I've seen that RS232 can get up to 

230.4K baud.

It's interesting what you said about the FTDI interface's top speed.  I wonder if it's because you aren't actually using an RS232 interface but just the processor's USART.  [Maybe the Processor's USART has a higher top end than RS232.]

The USBKey [AT90USBKEY] can be found at: 

http://www.atmel.com/dyn/products/tools_card.asp?tool_id=3879



[Non-text portions of this message have been removed]

Re:USB interfacing

2008-09-02 by Enki

I have used the FTDI chip at 460.8kbps, 921.6kbps and 1843.2kbps
without any problem. 

	Mark Jordan

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On 2 Sep 2008 at 6:35, David Appleton wrote:

> There are a number of factors that determine the RS232's max speed
> [including cable length and processor clock speed].  I think I've
> seen that RS232 can get up to 
> 
> 230.4K baud.
> 
> It's interesting what you said about the FTDI interface's top
> speed.  I wonder if it's because you aren't actually using an RS232
> interface but just the processor's USART.  [Maybe the Processor's
> USART has a higher top end than RS232.]
> 
> The USBKey [AT90USBKEY] can be found at: 
> 
> http://www.atmel.com/dyn/products/tools_card.asp?tool_id=3879
> 
> 
> 
> [Non-text portions of this message have been removed]
> 
> 
> ------------------------------------
> 
> Yahoo! Groups Links
> 
> 
>

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Re: USB interfacing

Re: USB interfacing

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