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Hard Disk Interface for the Printer Port

IDE2LPT – removable storage via the printer port

Published in issue 306, January 2002

Hard Disk Interface for the Printer Port
Can’t even give away that hard disk drive on your redundant PC system? Why not use it as a portable drive? This interface adapter allows a standard low-cost internal hard drive to be used as a convenient mobile plug-in unit, great for storing or transferring large files from PC to PC or notebook. A preprogrammed Altera EPLD chip ensures a neat unit with a minimum of external circuitry.It’s difficult to believe that the first PC systems came without a hard disk drive. How did we ever manage? It was only when hard drives appeared that the real convenience of a PC was realised, we didn’t mind that these drives could only store a few Mbytes and were about the same size and weight as a common house brick, it was certainly an improvement on reloading MS-DOS from a boot disk at every start-up.
Resistors:
R1 = SIL array 8 x 1kOhm
R2 = SIL array 4 x 470Ohm
Capacitors:
C1,C3-C8 = 100nF
C2 = 100µ F 16V radial
Semiconductors:
IC1 = 7064LC84-15 (Altera), programmed, order code 010047-31
IC2 = 74HCT14N
IC3 = 7805
Miscellaneous:
JP1,JP2,JP3 = 3-way pinheader with jumper
K1 = 25-way sub-D-plug (male), PCB mount
K2 = 10-way boxheader
K3 = 40-way boxheader
2 solder pins
Extension cable for PC PSU (see text)
Printer extension cable (1:1)
IDE cable
PCB, order code 010047-1

Click below to download a PDF copy of this article from Elektor magazine.

 

Downloads 

PDF Article (e021012.pdf)
10 Elektor Credits
PCB layout (010047-PCB.pdf)
10 Elektor Credits
 

Order from Elektor 

PCB, bare 010047-1
010047-1
 

Order from Eurocircuits 

PCB, bare 010047-1

 

Free downloads 

010047-11.zip

Free download

Please note. In view of the complexity of international markets, Elektor cannot guarantee the availability of components for this project.

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