John S Gwynne jsg
Thu May 19 18:57:40 GMT 1994

   In message <9405190416.AA22576 at coulomb.eng.ohio-state.edu> , you write:
| I used the 68HC11F1 with great success. I managed to port over a complete
| 6801-based engine controller with hardware-based controls (with the CPU
| doing only calculations) to a completely software-based system. I even
| have about 65% CPU idle time with my 8 ms loop time and running a 4-cyl
| at 25000 RPM. Of course, the engine doesn't actually run that fast...

65%... I'm impressed. Do you think there is enough "head room" (extra memory
and CPU cycles) to write all the software in C?

| My approach is to use software to accomplish something until it hurts too
| much. Then I change to hardware. Actually, more often than not, I throw

Could you share with us your general I/O configuration?

| -Dale

                                       John S Gwynne
                                          Gwynne.1 at osu.edu
               T h e   O h i o - S t a t e   U n i v e r s i t y
    ElectroScience Laboratory, 1320 Kinnear Road, Columbus, Ohio 43212, USA
                Telephone: (614) 292-7981 * Fax: (614) 292-7292

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