Mail Archive - Plus/4 World



	Home Search Games Tapes Covers Cheats Maps Software New Stuff Hall Of Fame HVTC Game Endings Solutions Remakes Publications Magazines Effects Top List Members Groups Features Plus/4 Encyclopedia Hardware Tools Options Forum Home Search Games Tapes Covers Cheats Maps Software New Stuff Hall Of Fame HVTC Game Endings Solutions Remakes Publications Magazines Effects Top List Members Groups Features Plus/4 Encyclopedia Hardware Tools Options Forum	Login

Previous | Next

From: Nicolas Welte
Date: 2000-01-13
Subject: Re: WinEMU 0.47R2

Mike Dailly wrote:
> Whats the difference between them? (X1541 and XE1541)

You can see this in the docs of the Star Commander (sta.c64.org), but in short: The X1541 relies on the fact that some interface lines on the PC parallel port act as open collector, bidirectional interface lines and connects them directly to the 1541 serial port lines. The XE1541 is a workaround for newer LPT ports that do not behave that way anymore and simulates an open collector output with a Schottky diode and also uses a separate input line.

Nicolas