Re: TI-H: Re: Newbie Q - The imfamous 'not working' message
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Re: TI-H: Re: Newbie Q - The imfamous 'not working' message
I still can't figure it out. I've DLd and tried almost every sender for the
85. Should the LED light up when it is plugged in, or just during transmit?
Mine doesn't light up at all. I don't understand your comments about
voltages.
-William
----- Original Message -----
From: David Knaack <dknaack@rdtech.com>
To: <ti-hardware@lists.ticalc.org>
Sent: Thursday, August 03, 2000 11:41 AM
Subject: TI-H: Re: Newbie Q - The imfamous 'not working' message
>
> From: "William Cox" <william@characterlink.net>
> > I'm using the $4 dollar
> > schemo. I've been over the circuit a number of time, and I'm fairly
> certian
> > that all is well. But, it doesn't work. Whenever I plug in the cable
into
> > the COM1 port and into my calc. The screen (on the calc) freezes.
>
> Generally it will freeze if the link program has not initialized the
serial
> port correctly. When idle the voltages on both link port connectors (calc
> and link cable) should be about 5v. If you check you will almost
certainly
> find that one or both of your link cable lines are at 0 volts. For some
> reason the calc runs slow under this condition, I don't know why, perhaps
> the processor enters a tight wait loop to monitor that line for the
> communication protocol.
>
> > None of the programs I've DLd have gotten there.
>
> One of them, Cal I think, used to have the com1 and com2 backwards, which
> caused no end of problems for people.
>
> DK
>
>
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