Emax

That's great !
Let us know when it will operate...

On Jun 26, 2009, at 12:54 PM, mr julian wrote:

>
>
> OK.
>
> So - some people here might remember how near the end of last year I
> said I'd have a go at designing a usb-RS422 adapter for the emax that
> would world just like a normal asynchronous serial device until it was
> requested to go to 500k baudrate, when it would then jump into
> synchronous slave mode.
>
> Well.. lots of stuff happened to me since then (lots good, mostly) and
> the whole thing got left on the side for a while....
>
> Anyway. I actually got around to building up my RS422 adapter board  
> this
> week.
>
> And today I have been mucking about with the test download program  
> given
> to me by esynthesist, seeing if I can make firmware for my adapter  
> that
> esynthesist's test program can use.
>
> and... it seems to work.... well - work as good as I can see. right  
> now
> I have a cmd window saying (after a bunch of scrolling)
>
> ---------------------------------------------------
> .
> .
> .
> .
> Sent 6 bytes
> [F0 7E 0 7F F F7 ]
> (16) 10:20:19.758 received 127 bytes, status is 1 [0 0 0 0 0 0 ]
> Sent 6 bytes
> [F0 7E 0 7F 10 F7 ]
> (17) 10:20:19.768 received 127 bytes, status is 1 [0 0 0 0 0 0 ]
> Sent 6 bytes
> [F0 7E 0 7F 11 F7 ]
> Start of MMA unload: 10:19:30.347
> End of MMA unload: 10:20:19.788
> S U C C E S S F U L !
>
> Press a key...
>
> ---------------------------------------------------
>
> I think the next thing to do from here is send my prototype adapter  
> off
> to esynthesist, so he can develop a proper app, and then when the  
> proper
> operation of the hardware/software pair is confirmed, get the adapter
> schematic and firmware info all up in the emax group archives for
> everyone, and start work on a PCB to make building up these adapters a
> bit easier. (promise I won't take 8 months to do a PCB... in fact I
> already have the schematic captured)
>
> julian
> 



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