The Universal Access Device (UAD) seems to work slowly if it is connected via parallel port. What is wrong ?
The best transfer performance between the Host PC and the target can
only be achieved if the parallel port interrupt IRQx is usable and the
port mode is EPP. Use the EPPSetup.exe tool from your UDE installation
to verify your parallel port installation. It is recommend to enable
the parallel port interrupt and the EPP mode.
BIOS (i.e. Award) - Open the page 'Chipset Feature Setup'.
- Enable the Onboard Parallel Port.
- Set the Onboard Parallel Port address/IRQ to 378h/IRQ7 or 278h/IRQ5.
- Set the Parallel Port Mode to EPP or ECP+EPP.
- Use EPP 1.9 Mode (if applicable).
Windows 2000, Windows XP (ACPI) - Open the Control Panel element System.
- Select tab Hardware.
- Click button 'Device Manager' .. to open the Device Manager.
- Expand the group Ports (COM & LPT).
- Double-click the desired LPT port.
- Select tab Port Settings.
- Change the Filter Resource Method to Use any interrupt assigned to the port and close all dialogs.
- You may have to restart your system depending on the Configuration Managers choice.
EPPSetup tool - Open the EPPSetup tool from your <UDE_DIRECTORY>.
- Click button Change.
- Activate the checkbox 'Use this settings'.
- Setup Parallel Port Type and Mode.
- Close the dialog and test the setup via 'Test UAD'.
| Type | Mode | Speed | Speed (no IRQ) |
|---|
| ECP+EPP | EPP | 230kByte/s | 150kByte/s | | EPP | EPP | 230kByte/s | 150kByte/s | | Bidirectional or PS/2 Mode | BPP | 150kByte/s | 130kByte/s | | Standard or AT-Mode | SPP | 130kByte/s | 95kByte/s |
Please note that because of the nonexisting standardization of the
older parallel port modes and the variety of chipsets not all settings
must work correctly. Please try an other parallel port mode in this
case. |
