Re: [avr-chat] Do people like the XMEGA?

[Erik Walthinsen]

On 02/14/2013 09:29 PM, Rick Mann wrote:
> Eric, it looks like they use a separate FTDI chip for USB comms. Do you think 
> the XMEGA could handle the motion control AND USB at the same time? I suspect 
> it can, especially since I think the USB interrupt can be given a lower 
> priority, but I'm just asking anyway.

Yeah, it should work fine even if you use the CPU at nearly full-blast. 
 The USB hardware responds with NAKs until your code feeds it a 
response, so it very tolerant in that regard.