new to 8 pin pic

[hoyles]

i wrote the program below that runs fine on a 16f84a, but i would like to port it over to a 12f629. i have no experience with this pic chip at all. help would be greatly appreciated.

i use it to send a positive pulse to a 2-coil latching relay using the same pushbutton.

push button on ra0 and rb0 pulses a "1" for about 1/2 second.(turns relay on)
push button on ra0 and rb1 pulses a "1" for about 1/2 second.(turns relay off)

i would also like to add an option of holding the same pushbutton down for a longer period of time, first, pulsing 1/2 second on rb0 .(turns relay on) and then go into a timer mode of about one hour and then pulsing 1/2 second on rb1..(turns relay off)

existing 16f84a program:

b0 var Byte
pb0 var PORTA.0

TRISB = %00000000

loop:
If pb0 = 1 and b0 = 0 Then one
If pb0 = 1 And b0= 1 Then two
Goto loop

one:
high 0
b0 =1
pause 2
low 0
goto loop

two:
low 0
high 1
b0 =0
pause 2
low 1
goto loop

end

thanks, in advance

mike

[skimask]

help would be greatly appreciated.

Help? greatly appreciated? Looks to me like you want somebody to write the program for you...

I think (ok, I know) you'll get a lot more response and assistance if you write a program that attempts to use the functions you wish to use, and the rest of us can HELP YOU look thru the code to figure out why it's not performing up to your expectations.

[hoyles]

the program (under "existing program" line works fine.

i want to transfer it to a 12f629 and continue to use it (and, if possible, add a section to it that will act as a timer to keep the relay on until the time has expired, turning the relay off.

i'm not really proud of it, but i did write the code for the existing program.
i do not want anybody to do it for me, thus the word "help"

what is this forum for?
i just wanted to be pointed in the correct direction.

mike

[skimask]

the program (under "existing program" line works fine.
i want to transfer it to a 12f629 and continue to use it (and, if possible, add a section to it that will act as a timer to keep the relay on until the time has expired, turning the relay off.
i'm not really proud of it, but i did write the code for the existing program.

Well, if it works, then you should be proud of it. I don't care if it's the ol' blinky LED, or the next best nuclear fission controller. If it works, show it to the folks on the block... Can they do any better? Most likely not...

Transfer the program! It should transfer right over...except for the fact that the 12F629 doesn't have a PortB... I'll let you figure that one out...

i do not want anybody to do it for me, thus the word "help"
what is this forum for?
i just wanted to be pointed in the correct direction.

Funny how that works...'cause that's exactly what people want these days...instant gratification... It's amazing how many folks are the 'one-post' types looking for something for nothing.

[Archangel]

Hello hoyles,
Open up the data sheet for the 12F . . . and see, as skimask said no port B, no Port A, funny thing called GPIO.
search here: http://www.google.com/custom?hl=en&c...picbasic.co.uk search for 12F675 or whatever chip you like, lots of examples, use the link above unaltered.
I set it as my home page, except I have it default to web search not picbasic forum search.

[hoyles]

hey skimask,

what do you do, get on this forum to make it harder to learn about pic programming?

thought the purpose of this forum was to get information not to get humiliated.

you must be in between bank robbing jobs (skimask) and have so much spare time on your hands that this is your way of getting pleasure.

[skimask]

hey skimask,
what do you do, get on this forum to make it harder to learn about pic programming?
thought the purpose of this forum was to get information not to get humiliated.

Yep, that's exactly what I do...make it harder to learn...because that would require most people to actually put forth the effort to actually learn something new for a change, rather than be spoon fed, which is easier, yes? Which is exactly how I read your 1st post... and, AND, if you look REAL hard, you'll see that your 2nd post and my response to your 2nd post, along with Joe's follow-up to that, might also point you in the right direction to accomplish your goal.

And BTW...

you must be in between bank robbing jobs (skimask) and have so much spare time on your hands that this is your way of getting pleasure.

Did you come up with that one yourself? Or did someone give it to you on a forum somewhere else?
No, I don't have a lot of spare time. What I do have is a PC that's practically always on, so I leave a tab open to this site. When I pass by the workstation, I hit refresh and see what's up.

[ruijc]

Hello hoyles,

let me give you some pointers on that

For the PIC12F629/675 you have no portb, it's called GPio

So:

where you have :

TRISB = %00000000
pb0 var PORTA.0

you need to have something like:


trisio=%000001
pb0 var gpio.0

and for:

If pb0 = 1 and b0 = 0 Then one

you need to have something like:

if ( pb0=1 ) and ( b0=0 ) then one

Get the ideia?