Control Motor with PIC16F or dsPIC30F

[Sayuri0903]

Hi all,
My team (group of student) have to build a board to control a hexapod. (a dsPIC controls a motor)
My teacher give us questions:
Why do we use dsPIC30F but not PIC16F? is dsPIC30F better than PIC16F? Better what?
My team have tried search a lot of documents, however, we cannot find out answer.

Plz help us. Thanks very much

 

[misterT]

Think how many motors the robot has and how you control them.. I think there is part of the answer.

 

[Sayuri0903]

I have 6 motors.
One dsPIC controls a motor. and a PIC connect to PC

 

[misterT]

I have 6 motors.
One dsPIC controls a motor. and a PIC connect to PC

There is the answer I think. dsPIC30F has up to 8 PWM channels that can be used for motor control. PIC16F does not have enough PWM channels.

 

[Joe G]

Have you looked in the data sheet for something like the pic18's "PSTR1CON: PULSE STEERING CONTROL" which = 4pwm's channels using 1 eccp. dsp30 may have even more/better ones