Making your own programming cable

Dr.No

I have Basic Stamp Rev. D that uses the old printer cable hookup.

I understand there's a link that shows you how to make your own cable.

I'm really having a hard time finding it. USB would be great.

Thanks.

Dr.No

that would be USB to 3 pin...

Mike Green

You must be referring to a BS1 which is the only Stamp that used a parallel I/O cable for programming.

Parallax now makes an adapter from a serial port (DB-9) to the 3-pin programming connection and this works very well with a USB to serial adapter. Look at the Parallax webstore page on the BS1 for this adapter and you should be able to find its schematic and duplicate the device.

Dr.No

Thanks.

I found that diagram in the software help. I was just hoping for a direct usb to 3-pin cable.

Chris Savage

Please bear in mind that the 3-pin cable system only works on DOS-based Systems. Operating Systems like Windows 2000/NT/XP do not allow direct access to the port and therefore will not work with that connection method. The software that uses that connection is also DOS-based.

▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
Chris Savage
Parallax Tech Support

Dr.No

I'll be using my old cable (assuming it still works)... can't wait to get started. And I'll be using the Windows version of the software.

Thanks.