[Coco] serial port problem

[Mathieu Bouchard]

Le 2013-10-31 à 10:27:00, Robert Gault a écrit :

> You can do this by bridging cable lines inside either the PC or Coco 
> connectors. I'm not sure where I got this info but you could try it. I'm 
> sure I have my cable set this way.
>
> PC DB9 connector - bridge lines
> DB9 6 to DB9 4
> DB9 7 to DB9 8

I had done this at first, and then I realised that the serial cable I have 
does not connect any pins apart from RX, TX, GND (which are DB9's 2,3,5). 
The cable does contain enough wires to connect everything, but I think 
that this is a custom-built cable made by someone who got lazy. I had 
another cable but I threw it away earlier this year because I hadn't used 
a RS232 port since about 12 years (and luckily, I didn't throw away both 
cables).

I could find a way to to the bridges inside the cable's plug on the PC 
side, but I don't know why that would make 4800 bauds begin to work, when 
currently 2400 already works. For example, it can't be a flow-control 
issue yet, it doesn't look like that (otherwise, at least *some* 
characters would go through correctly).

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| Mathieu BOUCHARD ----- téléphone : +1.514.383.3801 ----- Montréal, QC