Counting better ?

[Franko]

Yeah, I agree with you CocaColaKid and yettie, I usually use 1K or 10K (depending).But, I breadboarded this kinda quickly and grabbed what I had the most of.

I'll switch them to 10K and see if that makes any difference.

Yetti, I'm not sure what you mean by...

" seems to be your PULSIN DATAPLS,1,i is the culprit. if theres anyway you can monitor your WORD "i", verify it."

But I'll keep trying different methods.

Thanks for the advice,
Franko

[yettie]

franko,

good day!

i mean, i think that your PULSIN method is the problem. try to monitor your variable WORD 'i' after your PULSIN method, such as,

     ...
     PULSIN   DATAPLS,1,i
     SEROUT2 porta.0,16780,["i: ",#i]      ;connect to hyperterminal at 2400, 8N1, no parity.
     ...

just like that.

also I'm in doubt of what you are doing. are you actually trying to count the number of pulses at DATAPLS pin? when you use the PULSIN method, you are actually measuring the period of high signal (since your second argument is '1': PULSIN DATAPLS,1,i). if your period is less than (40us at 4MHz) it will never satisfy your IF statement, therefore the motor will not stop. hope i enlightened your mind, somehow.

regards,

[Franko]

Yettie,
Your right, I'm going about it in the wrong way. I am trying to count the pulses at the DATAPLS pin, NOT to measure the time it's high.

You have indeed enlightened me, I'll keep working at it.

Thank you very much !

[yettie]

franko,

good day!

i hope you will share your conclusions after all this just let me know. ok?

regards,

[Franko]

I sure will. Providing I come to a conclusion.

I'll keep at it.

[Franko]

Well,
Here is how I got it to count 4 pulses and stop "Hmtr". This works perfect every time although I'm sure there is a way that I could be able to just change a single number from say 4 to 5 in order to change the count, I just haven't figured it out yet.

But, if the last pulse doesn't occur at (While DATAPLS=0) the motor continues to run. Of course.

Can I use Timer1 ETC. to set a maximum motor run time of say 10 sec. ?

Thanks, I appreciate any help.

High Hmtr						
Pause 10
While DATAPLS=0
Wend
Low Hmtr
Pause 50

High Hmtr						
Pause 10
While DATAPLS=0
Wend
Low Hmtr
Pause 50

High Hmtr						
Pause 10
While DATAPLS=0
Wend
Low Hmtr
Pause 50

High Hmtr						
Pause 10
While DATAPLS=0 
Wend
Low Hmtr
Pause 50

GoTo Startloop

[yettie]

franko,

yes, you can use TIMER1 module. provided that you initialized it properly and then poll a counter if it reached a 10s mark. I've been using TIMER1 register for some time. A advice you set the prescaler to 1:8 setting since you have a way to long to wait.

I could have just gave you some of ideas since it will be more satisfying if you find it yourself.

have a nice day!

regards,