The following warnings occurred:
Warning [2] count(): Parameter must be an array or an object that implements Countable - Line: 795 - File: showthread.php PHP 7.4.33 (FreeBSD)
File Line Function
/showthread.php 795 errorHandler->error




HP Forums / Not HP Calculators / Not remotely HP Calculators v / Sharp SSIO Protocol

Post Reply 
Sharp SSIO Protocol
08-29-2022, 04:34 AM
Post: #1
blackjetrock Offline
Member
 		Posts: 160
Joined: Sep 2016
Sharp SSIO Protocol
I'm looking at the Sharp SSIO protocol and can't quite understand how it is supposed to work. In the PCG850VS users guide by Jack W. Hsu there is a diagram showing the output on the 11 pin interface signals for LPRINT "X". The bit I'm having trouble understanding is why the data line doesn't show the serial wiggles for hexadecimal 58 which is ASCII X.
There also seem to be four characters sent (XOUT goes high four times) which doesn't seem to match LPRINT "X", even if a CR,LF is sent as well as the X.

Anyone have any experience of this protocol or any idea what is going on?
Find all posts by this user
Quote this message in a reply
Post Reply 


Messages In This Thread
Sharp SSIO Protocol - blackjetrock - 08-29-2022 04:34 AM
RE: Sharp SSIO Protocol - mfleming - 08-29-2022, 11:10 AM



User(s) browsing this thread: 1 Guest(s)

Contact Us | The Museum of HP Calculators | Return to Top | Return to Content | Lite (Archive) Mode | RSS Syndication