Sep,


-----Original Message-----
From: sep <sseyedi@hypervr.com>
To: PICLIST@MITVMA.MIT.EDU <PICLIST@MITVMA.MIT.EDU>
Date: Monday, February 07, 2000 1:37 AM
Subject: Re: problem with code


|1)
|Yes this is true.
|Except that I haven't pulled up my resistors.


Pull up your input.
As Paul said, this may not be the cause of your problem.

|(BTW, what is the file name of the data sheet that would have documentation
|on the internal pull-ups cause I don't see anything in the 16f84 data
|sheet!)


F84 Data Sheet section of portB details the internal hardware of the port.
Also see the OPTION reg section.

|2)
|I have a test LED flasher that I use to test to see if my chip is still
|working. Although I have fried one, this one I still use is still working.
|(or it seems)


Test it!

|3)
|Does, anybody know how reliable these ceramic resonators are? I have been
|using them for two days and have killed two already.

I haven't used ceramic resonators (Don't You need to set the oscillator in
LP mode to use it? See the F84 Data sheet, I don't remember it)

|My RC oscillator still
|works though.
|Another thing is that in using an RC oscillator, the led flasher only works
|if it is on XT mode. This is very wierd...


??? If You set RC, use RC. What values of R and C are You using?

|
|Thanks For The help...
|
|Sep. S.


Regards,

S.-

|Paul B. Webster VK2BZC wrote:
|
|> Tim Hamel wrote:
|>
|> > You should flip those instructions around. The BTFSS will SKIP the
|> > next instruction if the bit tested comes out true. So, looking at your
|> > code, when PORTB0 = 1 then it will turn off the LED.
|>
|>   The switch goes to ground.  That's what it is supposed to do.  He
|> hasn't enabled the PORT B pull-ups however (OPTION bit 7), but the lamps
|> should default ON without a pull-up.
|>
|>   The LEDs are connected with anodes to PB1 and PB2 via 330 ohm
|> resistors, and cathodes to ground, are they not?
|> --
|>   Cheers,
|>         Paul B.
|>
|