Alan, have you looked at what (I think) Leon did for the IntellaSys
FORTHdrive in VentureForth (http://www.intellasys.net)? It uses the
SCSI pass through mechanism that sounds much more applicable to what
you are trying to do. I suspect that this other stuff is talking
about the target end for an 8051 chip, which is the only reason I can
see to use a Keil compiler. I did a little bit of the work on an OSX
version of the FORTHdrive interface and found that you are right.
It's a real can or worms. Steven Pelc pointed me in the right
direction and Joel Reymont did the really nasty IOKit work. However,
I suspect that the PC interface was much easier.

Why do you think you need to use HID rather than SCSI?

DaR

On Wed, Oct 21, 2009 at 10:13 PM, Alan Furman <alanf2_at_earthlink.net> wrote:
> "The API is provided in the form of a library file precompiled under the =
Keil C51 tool chain. =A0Device firmware must be developed using the Keil So=
fware C51 tool chain." -- Silicon Labs AN169
>
> Elizabeth Rather writes:
>
>>It seems to be a black art. =A0SwiftX has several targets that use USB fo=
r
>>the XTL, but in at least some (maybe all) cases we've had to get the
>>cooperation of the board mfr to send us the C source for the target end
>>(they don't like to distribute it). =A0It may be necessary to load the
>>mfr's driver somewhere and call it from Forth.
>
> This would require me to know more about Keil C than if I programmed the =
entire target application in C.
>
> =A0I hope someone else here
>>is able to be more helpful.
>>
>>Good luck,
>>Elizabeth
>
> So far it appears that I can have Forth, or I can have USB, but not both.
>
>
> Alan Furman
>
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Received on Wed Oct 21 2009 - 22:47:04 PDT