can anyone help me to do 8051 microcontroller speed controller programming???
any details regarding my hardware pls ask from me if needed
tqtq

if p3.4 and p3.5 on, motor will move forward
if p3.3 and p3.7 on, motor will move reverse

I don't understand wat u need, u already know dat u need to set the pin 3.4 and pin 3.5 high so that the motor moves forward and etc..

so wat do u need from us? something to copy and paste?

hi i need help on controlling the speed of the motor, i dono the way to program the 8051 microcontroller....so pls write me the source code if can.
thanks

Before we can help u, we need to know what have u done for diz project, i'm assuming this is ur final year project *sigh*

Are you using servo motor? If not mistaken, you will need to send the pulses to the servo motor to control the speed. I have lost touch with it for quite some time, correct me if i am wrong.

yeah sinister, i have tested the hardware part of that diagram and is all fine.
onli left programming of 8051 microcontroller not yet done, swt
my supervisor said the motor SPEED can be control by programming the microcontroller, so can u help me in this?? I cant find any example online to do this programming zzzzz thnks

This post has been edited by novschopin: Feb 8 2006, 01:27 PM

do u know the microcontroller manufacturer? how can we connect PC to the microcontroller? what connection?

well is from atmel. software and the microcontroller reader to connect them.
what connection? hmmm dono wat u mean

What you need to do is to implement a PWM (Pulse Width Modulator) in software. Now I've given you something to put into the google search engine, go look it up.

yes thats right, amel comes built in with PWM, you just need to activate it. i have a code right here for atmel but you wouldnt understand anything if you dont know whats PWM

The atmel chip he's using (89c2051 in the circuit diagram) doesn't have hardware PWM. A software PWM is easy enough to implement with Timer0.

wah really easy ??? zzzzz how?

hey kramuse can u pls giv me the code ?? and put some brief explanation on it pls??

any other who can help? swt

is that what you mean with PWM is the length of the 'high' as well as the 'low'? the longer the width of 'high' the faster the engine turn?

yeah u r right, do u know how to program?

there are some notes and papers at National Instrument www.ni.com not too sure if it's applicable, but hope it is!