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   Home P&E Customer Support FAQs - Frequently Asked Questions FAQ ID # 4
FAQ ID # 4
I am having trouble communicating with a PEmicro parallel port debug interface cable. What should I try?

Note: Please note that driver support for parallel port debug interface cables have been removed from Window 7 32/64 bit and newer OSes. Please migrate to one of our USB interface cables for Windows 7. This FAQ only applies to older OSes.

(1) The BIOS settings for the Parallel port should be one of the following: SPP, Normal, Standard, Output Only, Unidirectional, AT. Try to avoid ECP, EPP or PS/2 Bi-directional. Please refer to your motherboard's manual for steps to access the BIOS.

(2) In Windows XP, make sure to turn off the parallel port plug and play scanning "feature". This feature of windows XP will interrupt parallel port communications between the PC and PEmicro's interface cable. This will yield what looks like sporatic communications. Turning of the autoscan "feature" may be turned off for the parallel port done by downloading and running the WINXP registry patch attached to this FAQ.

(3) Verify that the drivers for the parallel port device is installed. Go to Control Panel-->System -->Hardware-->Device Manager. Click View and Show Hidden Devices. Expand out Non-Plug and Play Drivers. You should find GIVEIO BDM Access Driver (or PEmicro BDM Cable Driver I), PEmicro BDM Cable Driver II, and PEmicro System PCI Driver. You may install these drivers by downloading the appropriate driver installer below.

(4) The parallel cable connecting the PC parallel port and the BDM cable MUST be IEEE1284 compliant. If the cable is not marked with the IEEE1284 text, then it is not compliant.

(5) In windows XP/2000, the parallel port dialog checkbox entitled "Enable Legacy Plug and Play" should be checked. This setting is located in the Control Panel-->System-->Hardware->Device Manager->Ports->Printer Port (LPTX) dialog. You must reboot for this setting to take effect.

(6) Make sure to turn off any applications which may be trying to access the printer port (such as a Print Manager) before running PEmicro's software.

(7) Also beware that some laptops, in particular some of the IBM Thinkpads, do not implement a standard parallel port even though they claim they do. If you encounter this problem on a laptop and have access to a desktop machine, it is best to try the experiment on the desktop in order to rule out other issues.

(8) Please be cognizant of the fact that many USB-to-Parallel, or ISA/PCI Parallel Ports will suffer from the same problems as your original PC. In other words, they too do not always implement a standard parallel port. Before you purchase any of these devices, please check with the manufacturer that they are indeed IEEE-1284 compliant.

(9) Please note that "testing" a parallel port by means of connecting it to a parallel printer is not a good test. The printer does not draw power from the parallel port (whereas our cables do), and since they will almost always work, this test is not a good test of the parallel port.

Related Downloads
P&E Hardware Interface Drivers, Version 12 (Win XP/Vista/7/8/10) - Version 12.4 Adds support for Windows 10 and Windows 10 1607. Installs PEmicro drivers to allow applications to communicate with PEmicro hardware. Please note that not all hardware may be supported for your OS. This does not include the application level support which comes with the different products. Administrator privilege is now required. Released 01/12/2017.

P&E Hardware Interface Drivers Version 9 (Windows 98/ME) - NOTE: THIS IS A LEGACY DRIVER. Installs PEmicro drivers to allow PEmicro applications to communicate with PEmicro hardware via the parallel port, PCI bus, Ethernet, Serial, and USB. Please note that not all hardware maybe supported for your OS. This does not include the application level support which comes with the different products. This install will also work for Windows 2000/XP, but for these operating systems you should download the latest version instead.

WINXP2.REG - Disables autodetect sequence on the parallel port under XP.

Architectures Categories Products
HC08, HCS08, HC(S)12(X), 68HC16, CPU3xx, ColdFire V2/V3/V4, Power MPC5xx/8xx, Qorivva MPC5xxx Interface Hardware/Cable, Debugger, Flash Programming Software, Development Kit / Package BDML_16/32, BDML_CF, BDML_CFLV, BDML_MC, BDML_PPC, BDML_PPCNEXUS, ICD12Z, ICDHCS08, PROGHCS08, BDM MULTILINK, PROG12Z, ICD16Z, PROG16Z, BDML, CABLE_16/32, CABLE_16/32LV, ICD32Z, PROG32Z, ICDCFZ, PROGCFZ, CABLE_CF, CABLE_CFLV, PROGMCZ, CABLE_MC, ICDPPCZ, PROGPPCZ, CABLE_PPC, CABLE_DB9, CABLE_DB25, CABPPCNEXUS
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