Threewheeler7,

Did you get your 877a dilema figured out?   Just curious.

                                                    Regards,

                                                        Jim
----- Original Message ----- 
From: "threewheeler7" <threewheeler7@hotmail.com>
To: <piclist@mit.edu>
Sent: Saturday, January 05, 2008 11:29 AM
Subject: [PIC] f877 portd half of port not working?


>
> im sure im overlooking something simple, but i just started working with a
> 16f877a chip i had laying around for a wile. iv used these chips before 
> but
> not portd so i just wrote a very simple prog to chase 8 leds on port d
> however, it only worked from bits 0 to 3, took up the time on bits 4 to 7
> and CARRY, and went back to bit 0.
> i kinda want to move on to my real projects lol.
>
> *wow i feel stupid when i sent this i forgot to attach the code.
>
> here it is:
> LIST p=16F877a
> include "P16F877a.inc"
> ERRORLEVEL 0, -302 ;bank selection messages
> __config 0x3F39
>
>
> cblock 0x20
> count1
> counta
> countb
> endc
>
> org 0x00
> bsf STATUS, RP0 ;bank 1
> movlw 0x00
> movwf TRISD
> bcf STATUS, RP0 ;bank 0
>
> Start
> clrf PORTD
> call Delay
> bsf PORTD,0
> call Delay
> rlf PORTD,1
> call Delay
> goto $-3
> Delay
> movlw 0xff
> d0 movwf count1
> d1 movlw 0xC7
> movwf counta
> movlw 0x01
> movwf countb
> Delay_0
> decfsz counta, f
> goto $+2
> decfsz countb, f
> goto Delay_0
>
> decfsz count1 ,f
> goto d1
> retlw 0x00
> end
> -- 
> View this message in context: 
> http://www.nabble.com/f877-portd-half-of-port-not-working--tp14628946p14628946.html
> Sent from the PIC - [PIC] mailing list archive at Nabble.com.
>
> -- 
> http://www.piclist.com PIC/SX FAQ & list archive
> View/change your membership options at
> http://mailman.mit.edu/mailman/listinfo/piclist
> 

-- 
http://www.piclist.com PIC/SX FAQ & list archive
View/change your membership options at
http://mailman.mit.edu/mailman/listinfo/piclist