CPCI 8bit Printer Mod - Revision history

TFM: /* Note */ added information

2021-04-19T18:28:34Z

‎Note: added information

TFM: spelling fixed

2021-04-19T18:26:27Z

spelling fixed

MacDeath at 01:29, 17 December 2010

2010-12-17T01:29:05Z

Nocash at 22:34, 3 August 2010

2010-08-03T22:34:47Z

Nocash: Created page with 'An 8bit Printer Port DIY extension from german magizine CPC Schneider International (issue 12'85, page 64). Connects Printer Bit7 to Joystick1 Select s…'

2010-08-03T22:32:50Z

Created page with 'An 8bit Printer Port DIY extension from german magizine CPC Schneider International (issue 12'85, page 64). Connects Printer Bit7 to Joystick1 Select s…'

New page

An [[8bit Printer Ports|8bit Printer Port]] DIY extension from german magizine [[CPC Schneider International]] (issue 12'85, page 64).
Connects Printer Bit7 to Joystick1 Select signal (joystick port pin8).

This solution isn't too recommened. Some drawbacks and problems are:
* Joystick Select is an open-collector output, so HIGH levels may be unstable (this could be fixed by an additional pull-up resistor).
* Bit7 may tend to be HIGH by default, so printing normal text won't work with normal software that doesn't support the mod (the schematic includes a switch to disable the mod manually).

'''Note:''' Some years later the same magazine (renamed to [[PC Amstrad International]], issue 8/9'91, page 69) released another 8bit printer mod: This newer (and better) solution uses PPI.Pin12 (same as the [[Happy Computer 8bit Printer Mod]]).

== Original Article ==

<gallery>
File:CPCI issue 12 85 page 64 8bit printer port.jpg
</gallery>

← Older revision		Revision as of 18:28, 19 April 2021
Line 16:		Line 16:

	== Note ==		== Note ==
−	Some years later the same magazine (renamed to [[PC Amstrad International]], issue 8/9'91, page 69) released another 8bit printer mod: This newer (and better) solution uses PPI.Pin12 (same as the [[Happy Computer 8bit Printer Mod]]).	+	Some years later the same magazine (renamed to [[PC Amstrad International]], issue 8/9'91, page 69) released another 8bit printer mod: This newer (and better) solution uses PPI.Pin12 (same as the [[Happy Computer 8bit Printer Mod]]). This modification is fully supported by [[FutureOS]].

@@ Line 1: / Line 1: @@
 [[Category:Printers and printer ports]][[Category:DIY]]
-An [[8bit Printer Ports|8bit Printer Port]] DIY extension from german magizine [[CPC Schneider International]] (issue 12'85, page 64).
+An [[8bit Printer Ports|8bit Printer Port]] DIY extension from German magazine [[CPC Schneider International]] (issue 12'85, page 64).
-Connects Printer Bit7 to Joystick1 Select signal (joystick port pin8).
+Connects Printer Bit7 to Joystick 1 Select signal (joystick port pin8).
-This solution isn't too recommened. Some drawbacks and problems are:
+This solution isn't too recommended. Some drawbacks and problems are:
 * Joystick Select is an open-collector output, so HIGH levels may be unstable (this could be fixed by an additional pull-up resistor).
 * Bit7 may tend to be HIGH by default, so printing normal text won't work with normal software that doesn't support the mod (the schematic includes a switch to disable the mod manually).
@@ Line 16: / Line 16: @@
 == Note ==
 Some years later the same magazine (renamed to [[PC Amstrad International]], issue  8/9'91, page 69) released another 8bit printer mod: This newer (and better) solution uses PPI.Pin12 (same as the [[Happy Computer 8bit Printer Mod]]).

← Older revision		Revision as of 01:29, 17 December 2010
Line 1:		Line 1:
		+	[[Category:Printers and printer ports]][[Category:DIY]]
	An [[8bit Printer Ports\|8bit Printer Port]] DIY extension from german magizine [[CPC Schneider International]] (issue 12'85, page 64).		An [[8bit Printer Ports\|8bit Printer Port]] DIY extension from german magizine [[CPC Schneider International]] (issue 12'85, page 64).
	Connects Printer Bit7 to Joystick1 Select signal (joystick port pin8).		Connects Printer Bit7 to Joystick1 Select signal (joystick port pin8).

@@ Line 6: / Line 6: @@
 * Bit7 may tend to be HIGH by default, so printing normal text won't work with normal software that doesn't support the mod (the schematic includes a switch to disable the mod manually).
-'''Note:''' Some years later the same magazine (renamed to [[PC Amstrad International]], issue  8/9'91, page 69) released another 8bit printer mod: This newer (and better) solution uses PPI.Pin12 (same as the [[Happy Computer 8bit Printer Mod]]).
+The circuit can be connected internally to the mainboard, or externally to the joystick/printer port connectors.
 == Original Article ==
@@ Line 13: / Line 13: @@
 File:CPCI issue 12 85 page 64 8bit printer port.jpg
 </gallery>