Creating a pulse for injector drivers

Fred Miranda fcmtb at ix.netcom.com
Thu Jan 16 02:27:39 GMT 1997


At 04:39 PM 1/15/97 -0800, you wrote:
>WE are on a FSAE team and are designing an electronic fuel injection
>system from scratch.  We are using the Motorola 68hc11 MCU.  We have
>almost all the code written and tested but are having some trouble
>creating the pulse sent to the injector drivers.  The trouble is with
>using an output compare to create the pulse.  An output compare can be
>used to turn off a pulse after a certain time, but how to you turn the
>pulse on in the first place?  Please help.
>

Just set the bit associated with that output high.

Fred




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