>I'm new to pic programming and would welcome some help in a programming a >pic 16c84 to drive a stepper motor. (with additional output circuit) >I plan to use portb and need the following output sequence > >1001 >1100 >0110 >0011 > >I need this sequence repeated 350 times to give me a total of 350 x 4 = 1400 >steps. Then the sequence has to be reversed to drive the motor for the same >number of steps in the opposite direction. >This circuit is for durability testing of a stepper driven flap. >I have some ideas for the programming but the urgency of getting it working >does not allow me to experiment. > >Thanks. Gary gary.walker2@virgin.net Gary: You might want to have a look at our ELM313 Stepper Motor Controller chip. Does this sequence for you in an 8 pin package. You'll still need to provide the clock pulses and power drive, though. Jim Nagy Elm Electronics Makers of unique integrated circuits http://www.elmelectronics.com/