hi mesamune,
I am wondering if your misunderstanding of Input and Output is due to thinking that,
OUTPUT refers to the output of the Comparator, not the PIC pin.?
The TRIS set the pin configuration of the PIC pins not the external devices.
i am using PIC uC PIC16F877 to control this motor ,software i am using PIC Simulator IDE (basic based)but according to the manual i need to power up the pulse pins and also the directional pin is it? i mean pin 1 and pin 3 i need to connect to 5VDC and pin 2 and 4 to pulse input pin (PORTC.2) and (PORTC.3) one output pulse signal and another one direction signal.
i am using PIC uC PIC16F877 to control this motor ,software i am using PIC Simulator IDE (basic based)but according to the manual i need to power up the pulse pins and also the directional pin is it? i mean pin 1 and pin 3 i need to connect to 5VDC and pin 2 and 4 to pulse input pin (PORTC.2) and (PORTC.3) one output pulse signal and another one direction signal.
ya i am driving the controller with PIC uC, it seem my motor are now working,as i though the controller is internally power up.after study the extract which you posted it need to connect to VDC because b 4 this i straight away connect the uC input to the corresponding pin without any power go in to the corresponding pin
Eric sorry for late reply,i just tried out the timing just now ,i used 50us for 50% duty cycle pulse,the speed had improved but it still quite slow i do you think this is how far it can go?
Eric sorry for late reply,i just tried out the timing just now ,i used 50us for 50% duty cycle pulse,the speed had improved but it still quite slow i do you think this is how far it can go?
hi,
Look at my May15 posted drawing... the limit is 5uSec, which should make it ten times faster than 50uSec, providing your motor is able to respond to 5uSec pulses...OK.
As I suggested, keep reducing the pulse time until you find the motors limit.