Hmm, that's odd, but I'll remember that...  I fixed it by the
suggestions I got before w/the shadow register but I saved my previous
code and will give that quick-fix a try.

nick@veys.com | www.veys.com/nick

>Nick,
>
>I just plugged this into the sim, and got the same
>problem with only RA5 blinking.  However, I added
>these 2 code lines and it worked properly...
>
>        movlw   B'00000110'
>        movwf   ADCON1          ; Port A all digital
>
>Cheers,
>-Neil.
>
>
>
>-----Original Message-----
>From: pic microcontroller discussion list
>[mailto:PICLIST@MITVMA.MIT.EDU]On Behalf Of Nick Veys
>Sent: Monday, June 24, 2002 8:05 PM
>To: PICLIST@MITVMA.MIT.EDU
>Subject: [PIC]: PORTA output troubles!
>
>
>Ok I'm guessing this is a painfully obvious, 5 second fix, but
>it's had me stumped for 2 evenings.
>
>I have the following code:
>
>--------snip-------------------------------------------------
>
>TRISA = 0b00000000;
>
>while(1)
>{
>  RA2 = RA3 = RA4 = RA5 = 0;
>  DELAY_MS(250);
>  RA2 = RA3 = RA4 = RA5 = 1;
>  DELAY_MS(250);
>}
>
>--------snip--------------------------------------------------
>
>Which should simply blink the LEDs I have hooked up to
>PORTA[5:2].  No luck.  With the above code, RA2 will blink,
>the rest do nothing.  If I change the order, say from RA5 =
>RA4 = ... = 0; and the same for the = 1; part, RA5 will blink,
>and the rest do nothing.  So it appears the 1st one in the
>list works.  Odd.  Now if I take that line apart into:
>
>RA2 = 0;
>RA3 = 0;
>
>...
>
>etc, same thing happens, RA2 blinks, the rest do nothing.
>
>I thought maybe it was a speed thing, so I put NOPs between,
>nothing happens, and I doubt that would do anything because,
>well, I've never experienced anything like that before.
>
>So I tried to do it in assembly, this project is basically a
>HiTech PICC test anyways...
>
>So I have this:
>
>------snip-----------------------------------------
>
>MAIN
>  _BANK 1
>  movlw b'00000000'
>  movwf TRISA
>  _BANK 0
>
>loopage
>  bsf PORTA,2
>  bsf PORTA,3
>  bsf PORTA,4
>  bsf PORTA,5
>  DELAY_MILLI 250
>  bcf PORTA,2
>  bcf PORTA,3
>  bcf PORTA,4
>  bcf PORTA,5
>  DELAY_MILLI 250
>  goto loopage
>
> end
>
>------snip---------------------------------------
>
>But here, I get just !!!!!RA5!!!!! blinking.  I'm thoroughly confused.
>
>Ideas?  Please tell me I'm dumb and need to set a bit somewhere! :)
>
>Gracias in advance.
>
>nick@veys.com | www.veys.com/nick
>
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