Emax

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

GOOD WORK good to see you were succesful hope all goes well looking forward to pcb files

  ----- Original Message ----- 
  From: mr julian 
  To: emax@yahoogroups.com 
  Sent: Friday, June 26, 2009 11:54 AM
  Subject: [emax] RS422 progress





  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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  Version: 8.5.375 / Virus Database: 270.12.92/2203 - Release Date: 06/26/09 05:53:00


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

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
> 



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

Fantastic !

...seeing my test program actually say "successful" :-) !
I hope the upload will work too, that's the more interesting one of course.

So don't hesitate to send me the prototype !
I'm almost done with the next version of EMXP (v207, SoundFont2 translation support), which means I will have time for this RS422 stuff very soon ! 

Good work.

///E-Synthesist

--- In emax@yahoogroups.com, mr julian <jujulilianan@...> 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
>