This Forum is Dedicated For all The Object Oriented PIC Lovers .......... The concept behind OOPic is straight forward. Use preprogrammed multitasking Objects from a library of highly optimized Objects to do all the work of interacting with the hardware. Then write small scripts in Basic, C, or Java syntax styles to control the Objects. During operation, the Objects run continuously and simultaneously in the background while the scripts run in the foreground telling the objects what to do.

Saturday, November 3, 2007

[oopic] Re: How to make parallel programming cable?

--- In oopic@yahoogroups.com, "orkuncanga" <orkuncanga@...> wrote:
>
> Thanks for your reply,
> But unfortunately I don't have RS232 dongle and I couldn't find it
> so I have to order it wait for shipping.
> I have to find another way to do this. I have only USB ports and a
> USBtoSerial Converter (http://www.serialadapter.com/P505155344.jpg).
> Can I use a RS232toParallel Converter??
> Best Regards;
> Orkun ÇANGA

There is not much chance you can get parallel programming to work
without a REAL parallel port.

Personally, I wouldn't go this way but here is a transistor based
level shifter that requires one NPN and one PNP transistor. For the
product, the transistors are in a common package.

http://www.sparkfun.com/commerce/product_info.php?products_id=449

You can see how the Basic Stamp does it here:
http://www.parallax.com/dl/docs/prod/schem/BS2px24SchematicRevA.pdf

The unmarked resistors are 10k and they use the equivalent of a 2N3904
and 2N3906 which you can get at Radio Shack (probably generic equivalent).

I wouldn't do it this way because I would have concerns for damaging
the OOPic.

Richard



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