"The API is provided in the form of a library file precompiled under the Keil C51 tool chain. Device firmware must be developed using the Keil Sofware C51 tool chain." -- Silicon Labs AN169

Elizabeth Rather writes:

>It seems to be a black art. SwiftX has several targets that use USB for
>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). It 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.

  I 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 - 22:14:13 PDT