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Thread: 16F877 RB Interrupt on Change
face picon face BY : Olin Lathrop email (remove spam text)

> I can only assume that the interrupt doesn't
> happen because RD3 is never set when I toggle any of the RD4:7 lines.

Interrupt on change uses the high 4 bits of port B, not port D.

Olin Lathrop, embedded systems consultant in Devens Massachusetts
(978) 772-3129, olin.....spamembedinc.com, http://www.embedinc.com

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<001301c07ca2$e92f47f0$260bf6cd@pc> 7bit

See also: www.piclist.com/techref/microchip/ints.htm?key=interrupt
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Subject (change) 16F877 RB Interrupt on Change

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