Search found 20 matches

Now this has a three step very slow start, then a sudden jump in rate. Not linear.
As you have the code, with just one step at each speed, it is asking a lot for the motor to actually keep up....
...

The quoted driver does micro-stepping, but he's not telling how he's got it set up, what each driver pin is doing (apart from direction), or his motor's steps per revolution.

Driving @ 25kHz a full ...

There are several things in the code that may have 'issues'. For instance:

if(position >= (desired_pos-1250))

What happens if 'desired_pos' is less than 1250?. ...

@dave, i have done the same (almost) i mean my pulse signal is going to the external interrupt and i m counting the number for rising edges so that should be the total no. of pulses right ? The thing ...

@Mike
I am counting the number of pulses to keep track how much steps i have taken and since i know how many pulses are there while deceleration im running that piece of code so the motor should stop ...

I'm having some difficulty trying to decode what you're trying to do.
Yes, it's odd that you get different results each time you run the code.
I'd expect the same wrong result each time.

Please e ...

Hey guys I'm trying to control the position of stepper motor but couldn't get the hang of it. I have done the part where you have to slowly increase and decrease the frequency for smooth transitions. ...

comment.
I read the post as the 'right half of display not working' ,which to me means a hardware problem on the LCD module not software. Usually these device have several chips, each controlling a p ...

There are three basic reasons for this:

1) Using a driver with the wrong init sequence. PCM_Programmer's flex LCD is 'known good' for just about every text LCD.
Check the version you have _is_ the ...

Post a link to the driver that you downloaded from the forum.

Post the part number of your LCD. If you don't know it, then post a link
to the website where you bought it from.

i bought from a ...

Post a link to the driver that you downloaded from the forum.

Post the part number of your LCD. If you don't know it, then post a link
to the website where you bought it from.

i just looked it ...

Is your LCD_Driver.c the same as the CCS supplied lcd.c file?

Have you tried PCM's flex driver?

Mike

i downloaded the driver from this very forum, the only difference is that you define all t ...

void main()
{
lcd_init();
delay_ms(1000);

while(1)
{
lcd_gotoxy(0,1);
printf(lcd_putc, "Date: 28/08/18");
}
}
1. The delay should be at ...

See the sticky about Proteus/ISIS.

LCDs don't wake up as soon as the power is applied.

Try putting a delay_ms(1000) before the lcd_init(), rather than after.

Mike

still didnt fix the issue ...

Hey guys I'm trying to interface a 16x2 lcd which is working fine on proteus but on hardware only the first 8 columns are working anything after that is just completely blank. What could be the proble ...