74145 Idea

Archiver

Ryan-

You could skip the '145 and use the three outputs this way to control
the motor drivers:

P0 P1 P2 Meaning

---

0 0 0 All stop
0 0 1 Forward, motor 1
0 1 0 Forward, motor 2
0 1 1 Forward, motor 3
1 0 0 All stop
1 0 1 Reverse, motor 1
1 1 0 Reverse, motor 2
1 1 1 Reverse, motor 3

Should meet your needs and prevents software turning more than one
motor on at a time.


Regards,

Steve

Archiver

I am working on a project using a BSI. There are 3 motors that need
to be powered 1 at a time and in different dirrections. To clarify
motor 1 will turn clockwise, then 2 counterclock, then 3 clockwise,
then 1 counterclock. etc. Instead of using up 6 outputs on the BSI
then running it threw a motor driver. I was going to use 3 outputs
and send bits to a 74145 BCD-Decimal Decoder which would then process
the data and power the right motor.
Even though this is more complex and uses more ICs, I use 3 pins
instead of 6 on the BSI. Does anyone know a simpler way to to this
without all the extras? Thanks for any input.
-Ryan