Sharp PC-G850VS

[Helix]

(06-16-2021 11:26 PM)silven Wrote:  So I got an FTDI cable and was able to reflash it to use the inverted signals that the 850 uses. I can send information to the 850 just fine, but when I want to send from the 850 to my PC it blocks and sends nothing.

I'm guessing that it has something to do with flow control. My ftdi cables doesn't break out lines for CTS/RTS, so I just disabled flow control, but it looks like its waiting for something. I'm betting it's something as simple as applying 5v to CD or something like that, but I don't want to start tossing 5V randomly at those pins for fear of breaking something. Any input would be much appreciated.

Some years ago there was a discussion about a DIY adapter on the French forum silicium.org. A summary of this discussion was made available as a pdf file. See the attachment.
I don't own this adapter, and I have not tried to make it, so I can't help on this subject, but maybe you will find some useful information in this document.