[TI-H] Re: PIXpander

To: ti-hardware@lists.ticalc.org
Subject: [TI-H] Re: PIXpander
From: Olle Hedman <oh@hem.passagen.se>
Date: Sun, 13 May 2001 19:32:48 +0200
In-Reply-To: <20010513170901.7CDBC36F9@sitemail.everyone.net>
Reply-To: ti-hardware@lists.ticalc.org


At 19:09 2001-05-13, you wrote:
>One would think that this code would work for the purpose:
>
>TRANSERR           MOVLW                0x4F 
>; Signals Error
> 
>; By lighting all
>                                   MOVWF         PORTB 
>        ; 4 LEDs.
>TRANSERR3       BTFSC             PORTA, 4              ; Is Button Down (Low)
> 
>GOTO              TRANSERR3
>                                   NOP
>TRANSERR2       BTFSS             PORTA, 4    ; Button Back Up? (High)
>                                   GOTO              TRANSERR2 
>
>                                   RETURN

Don't you think a single nop is a bit too short time to compensate for 
button-bouncing?
It probably rushes straight through that.
Probably isn't the only problem though, if it is a problem.. :)

///Olle

References:

[TI-H] Re: PIXpander

From: Adam Thayer <krevinek@matrix-z.net>