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???
09/22/05 01:01
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 		 #101338 - Good question
Responding to: ???'s previous message
Andy Neil said:

This doesn't sound like a job for an 8051 to me! :-(


You may be right. I don't know just yet what manner of throughput is needed; for the moment I'm presuming that the enveloped widget is a full speed (12 MBaud) device, in which case a 100 MHz Cygnal F13x might more or less suffice (not to be ARM phobic, I just already am familiar with the parts and the toolchain). The book I just got, "USB Complete", mentions a few peripheral parts intended for USB On The Go (OTG) applications, where devices can act as limited function hosts, so 1 or 2 of them might give me what I need.

Not to sound like a total ignoramus, but what's the ARM toolchain world looking like these days? Is there a complete GNU / freeware solution available, or is it a $5K / seat situation? What do folks do for debuggers / probes?

David


List of 29 messages in thread
TopicAuthorDate
Need advice re. USB bridging project            01/01/70 00:00      
   Time for lots of research!            01/01/70 00:00      
      Ya think!?            01/01/70 00:00      
         What the PC does in USB            01/01/70 00:00      
            Massive            01/01/70 00:00      
   Not 8051?            01/01/70 00:00      
      Good question            01/01/70 00:00      
         Handshake?            01/01/70 00:00      
         The ARMs I know all have on-board debugg            01/01/70 00:00      
            The ARMs I know            01/01/70 00:00      
               --- especially in thumb mode :)            01/01/70 00:00      
            all ARMs            01/01/70 00:00      
               [OT] Are you sure?            01/01/70 00:00      
         Why not software solution?            01/01/70 00:00      
            My thoughts too            01/01/70 00:00      
               I have no idea since I have had others d            01/01/70 00:00      
                  "Hardware" and "Software" solution            01/01/70 00:00      
                     he wants USB in AND USB out            01/01/70 00:00      
                        Maybe he didn't think of it            01/01/70 00:00      
                           but is there one?            01/01/70 00:00      
                        A Software Wedge            01/01/70 00:00      
                           I think we need to wait for David            01/01/70 00:00      
                              Sorry to have been away, folks            01/01/70 00:00      
                                 that is your choice            01/01/70 00:00      
                                    You might also have to...            01/01/70 00:00      
      FYI: Philips Host+Device Chip            01/01/70 00:00      
   Filter driver            01/01/70 00:00      
   You need a USB master chip, no '51 is av            01/01/70 00:00      
   Need advice re. USB bridging project            01/01/70 00:00      

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