Re: TI-H: Parallel link

To: <ti-hardware@lists.ticalc.org>
Subject: Re: TI-H: Parallel link
From: fit@aats.dk (Find Thorsen)
Date: Sat, 20 Sep 1997 22:43:34 +0200
Reply-To: ti-hardware@lists.ticalc.org

Don't switch the diodes!
I build a parallel-cable with the 1N4007 and the linktest program 
returned the same results as yours.
But the cable works anyway (with Winlink).

----------
> From: Jan Zumwalt <zumwalt@alaska.net>
> To: 'ti-hardware@lists.ticalc.org'
> Subject: RE: TI-H: Parallel link
> Date: 18. september 1997 09:01
> 
> I use 1N914 just fine.
> 
> -----Original Message-----
> From:	Demuynck [SMTP:kadem@unicall.be]
> Sent:	Wednesday, September 17, 1997 12:30 PM
> To:	ti-hardware@lists.ticalc.org
> Subject:	TI-H: Parallel link
> 
> I tried making a parallel link. At first it worked fine, but the next 
> day it didn't work anymore.
> In the linktest program I get the following values:
> 
> send 00 - read 00 - should be 00
> send 01 - read 20 - should be 20
> send 02 - read 00 - should be 10
> send 03 - read 30 - should be 30
>  
> I double checked all connections and everything seems to be fine.
> I used 1N4007 diodes, perhaps that could be the problem.
> Should I try using 1N4148 diodes instead ?
> 
> Wouter Demuynck
> kadem@unicall.be
>