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The World Leader in High-Performance Signal Processing Solutions

The World Leader in High-Performance Signal Processing Solutions. Adding a Parallel Port to a Computer. Problem. Older ADI eval boards & software require a parallel port, yet most new PCs don’t come with a parallel port

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The World Leader in High-Performance Signal Processing Solutions

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  1. The World Leader in High-Performance Signal Processing Solutions Adding a Parallel Port to a Computer

  2. Problem • Older ADI eval boards & software require a parallel port, yet most new PCs don’t come with a parallel port • Software requires parallel port to be at a legacy address: 0x378, 0x278, and 0x3BC • As far as we know, USB to Parallel port adapters do not work. We’ve heard from many customers who have tried and were unsuccessful. Solution • Find a computer with a parallel port • Add a parallel port to your computer • Re-write the evaluation software source code • Source code is usually available upon request, however ADI cannot provide help or support for this.

  3. Adding a Parallel Port to Computer • Desktop • PCI or PCIE card (not researched here) • Plugs into PC’s motherboard • Should easily be configured to work as legacy parallel port • Laptop • Laptop docking station (also not researched here) • Not all Laptops can use a docking station • Usually specific to the laptop brand and/or model • More expensive than add-on card • Provides additional connectors, not just parallel port • Good for fixed workstation • Also should easily be configured to work as legacy parallel port • Add-on card (researched here) • Not all cards can be configured to work as a legacy parallel port • Highly portable

  4. Laptop Add-on Cards • Add-on Cards are either PC Card (aka PCMCIA) or ExpressCard. • Slots on the laptop may look the same, however PC Cards will not fit into ExpressCard slots and vice versa. • If looking at ExpressCards, make sure it communicates to the motherboard via PCIE instead of USB 2.0. Remember, USB communication does not work.

  5. Laptop Add-on Cards • PC Cards tested by ADI: • Startech CB1PECP • Syba SD-PCB-1P • Quatech SPP-100 • Only working solution was Quatech because it can remap to a legacy parallel port address. • Quatech also makes an ExpressCard option, the SPPXP-100 • Both Quatech cards support 32-bit and 64-bit Windows XP, Vista, and 7. • SPP-100 PC Card costs about $100 (Google Shopping) • SPPXP-100 ExpressCard costs about $115 (Google Shopping)

  6. Before Buying a Card… • Check if PC resources are already taken. • Open Device Manager • In the View menu select “Show Hidden Devices” • Go back into the View menu and select “Resources by Type” • Expand the category “Input/output (IO)” • Do any of the ranges include 00000278 and 00000378? If both are taken, getting a parallel port card will not work.

  7. Installing Quatech Card • While computer is on, insert the card into the card slot (slot is plug-n-play) • When the Found New hardware Wizard pops up, select “Install from a list or specific location”

  8. Installing Quatech Card • Let the Wizard search for drivers on the CD or point it to drivers downloaded from http://www.quatech.com/ • Click finish when complete

  9. Changing Port Address of Quatech SPP-100 • Open Device Manager, expand “Ports (COM & LPT)” and double click on “Quatech SPP-100 PCMCIA Parallel Port”.

  10. Changing Port Address of Quatech SPP-100 • Go to Resources tab and un-check Use Automatic Settings. • Change the configuration to one with an I/O Range that starts with 0378 or 0278, has an IRQ interrupt, and does not conflict with existing hardware.

  11. To uninstall parallel port card • Follow instructions at http://www.quatech.com/support/rs232serialpci_faq.php#8

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