8bit Printer Port (Amstrad Action) - Revision history

MacDeath at 16:53, 19 December 2010

2010-12-19T16:53:12Z

← Older revision		Revision as of 16:53, 19 December 2010
Line 23:		Line 23:
	</gallery>		</gallery>

	[[Category:~~Hardware~~]] [[Category:DIY]]		[[Category:Printers and printer ports]] [[Category:DIY]]

Nocash: /* Technical */

2010-09-12T23:48:24Z

Technical

← Older revision		Revision as of 23:48, 12 September 2010
Line 9:		Line 9:
	== Technical ==		== Technical ==

	Connects to the expansion port.		Connects to the expansion port. Uses six TTL chips (74HC133, 74LS138, 74LS273, 74LS241, 74LS02, 74121), 4 resistors, 1 capacitor, plus some connectors.
	Port Bits Expl.		Port Bits Expl.
	FBF8h N/A Strobe (W)		FBF8h N/A Strobe (W)

Octoate: added categories

2010-02-27T11:51:44Z

added categories

← Older revision		Revision as of 11:51, 27 February 2010
Line 22:		Line 22:
	File:8bitPrinterAmstradActionIssue38page57.jpg		File:8bitPrinterAmstradActionIssue38page57.jpg
	</gallery>		</gallery>

			[[Category:Hardware]] [[Category:DIY]]

Nocash: /* Description */

2010-02-26T21:32:55Z

Description

← Older revision		Revision as of 21:32, 26 February 2010
Line 5:		Line 5:
	This is a rather bizarre [[8bit Printer Ports\|8bit Printer Port]] solution. Aside from the 8th data bit, it doesn't come up with any other extras: Data is only one-directional, and only Strobe and Busy control signals are implemented.		This is a rather bizarre [[8bit Printer Ports\|8bit Printer Port]] solution. Aside from the 8th data bit, it doesn't come up with any other extras: Data is only one-directional, and only Strobe and Busy control signals are implemented.

	Compared with the much older single-wire [[Happy Computer 8bit Printer Mod]] (1985), the Amstrad Action approach is terribly overcomplicated. ~~And aside from~~ that it isn't ~~even~~ backwards compatible with normal 7bit printer software.		Compared with the much older single-wire [[Happy Computer 8bit Printer Mod]] (1985), the Amstrad Action approach is terribly overcomplicated. Another downside is that the external circuit isn't backwards compatible with normal 7bit printer software.

	== Technical ==		== Technical ==

Nocash: /* Description */

2010-02-26T14:02:43Z

Description

← Older revision		Revision as of 14:02, 26 February 2010
Line 5:		Line 5:
	This is a rather bizarre [[8bit Printer Ports\|8bit Printer Port]] solution. Aside from the 8th data bit, it doesn't come up with any other extras: Data is only one-directional, and only Strobe and Busy control signals are implemented.		This is a rather bizarre [[8bit Printer Ports\|8bit Printer Port]] solution. Aside from the 8th data bit, it doesn't come up with any other extras: Data is only one-directional, and only Strobe and Busy control signals are implemented.

	Compared with the much older single-wire [[Happy Computer 8bit Printer Mod]] (1985), the Amstrad Action approach is terribly overcomplicated. And aside from that it isn't even backwards compatible with normal ~~the~~ 7bit printer software.		Compared with the much older single-wire [[Happy Computer 8bit Printer Mod]] (1985), the Amstrad Action approach is terribly overcomplicated. And aside from that it isn't even backwards compatible with normal 7bit printer software.

	== Technical ==		== Technical ==

Nocash at 14:02, 26 February 2010

2010-02-26T14:02:16Z

← Older revision		Revision as of 14:02, 26 February 2010
Line 1:		Line 1:
	External 8bit Printer Port from ''Amstrad Action Issue 38'' (November 1988).		External 8bit Printer Port from ''Amstrad Action Issue 38'' (November 1988).

			== Description ==

	This is a rather bizarre [[8bit Printer Ports\|8bit Printer Port]] solution. Aside from the 8th data bit, it doesn't come up with any other extras: Data is only one-directional, and only Strobe and Busy control signals are implemented.		This is a rather bizarre [[8bit Printer Ports\|8bit Printer Port]] solution. Aside from the 8th data bit, it doesn't come up with any other extras: Data is only one-directional, and only Strobe and Busy control signals are implemented.

	Compared with the much older single-wire [[Happy Computer 8bit Printer Mod]] (1985), the Amstrad Action approach is terribly overcomplicated.		Compared with the much older single-wire [[Happy Computer 8bit Printer Mod]] (1985), the Amstrad Action approach is terribly overcomplicated. And aside from that it isn't even backwards compatible with normal the 7bit printer software.

			== Technical ==

			Connects to the expansion port.
			Port Bits Expl.
			FBF8h N/A Strobe (W)
			FBF8h Bit0 Busy (R)
			FBF9h Bit0-7 Data (W)
			Writing any value to port FBF8h issues a short Strobe signal (the length of the signal is same as /IORQ ORed with /WR).

			== Scanned Article ==

	<gallery>		<gallery>

Nocash: Created page with 'External 8bit Printer Port from ''Amstrad Action Issue 38'' (November 1988). This is a rather bizarre 8bit Printer Port solution. Aside from the 8th data …'

2010-02-26T13:45:06Z

Created page with 'External 8bit Printer Port from ''Amstrad Action Issue 38'' (November 1988). This is a rather bizarre 8bit Printer Port solution. Aside from the 8th data …'

New page

External 8bit Printer Port from ''Amstrad Action Issue 38'' (November 1988).

This is a rather bizarre [[8bit Printer Ports|8bit Printer Port]] solution. Aside from the 8th data bit, it doesn't come up with any other extras: Data is only one-directional, and only Strobe and Busy control signals are implemented.

Compared with the much older single-wire [[Happy Computer 8bit Printer Mod]] (1985), the Amstrad Action approach is terribly overcomplicated.

<gallery>
File:8bitPrinterAmstradActionIssue38page56.jpg
File:8bitPrinterAmstradActionIssue38page57.jpg
</gallery>