| Login to enhance your online experience. Login or Create an Account
Categories USB 2.0 XPRS Power Supplies Enclosures Cables Software Main Menu About Us Knowledge-Base FAQS Blog Installation Software Technical-Support News Mail-List Store-Policies License-Agreement Terms-Of -Use Privacy-Statement Online Store Menu Store Home Shopping Cart Checkout Advanced Search Shopping Cart There are no items in your shopping cart. | # HANDLING PC/104 PERIPHERALS – ENTERING THE EMBEDDED AND INDUSTRIAL COMPUTERS WORLD ## 1. Traditional handling of PC/104 peripherals One traditional PC/104 computer system consists of one CPU (microprocessor) module , and one or more peripheral cards. Hardware of a PC/104 computer system Architecture of a PC/104 system In the architecture of a PC/104 system, on hardware level there are number of PC/104 cards , including one microprocessor card , and one or more peripheral cards . On the software level there is normally an embedded operating system, and service software - device drivers and/or applications. One PC/104 system may be stand-alone system, or it may be connected in a network of other PC/104 and/or desktop / notebook computer systems. ## 2. New way of handling PC/104 peripherals The PC/104 bus is identical as signals to the ISA bus, with the difference in the mechanical implementation - fixed size of the circuit board and use of a particular connector. We have designed a PC/104 to ISA adapter capable of connecting both - PC/104 cards with ISA cards. General information and images of the adapter are available at - ISA-PC104. Some of the features of the ISA-PC104 - PC/104 to ISA adapter include - The ISA side of the adapter is capable of connecting with USB2ISA-SLOT- USB to ISA slot version card, as well as one or more 8 bit or 16 bit ISA cards; The PC/104 side of the adapter is capable of connecting with one or more 8 bit or 16bit PC/104 peripheral cards. Able to provide +5V power supply to the PC/104 peripherals; capable of taking the isa-pwr POWER SUPPLY MODULE for having additional voltages of -5V , +12V and -12V. A minimum hardware configuration for servicing of a PC/104 peripheral include - one PC/104 peripheral card, one ISA-PC104- PC/104 to ISA adapter , and one USB2ISA-SLOT - USB to ISA slot version card . The configuration is powered on through the USB cable, connected to USB host computer system. If the PC/104 peripheral needs the additional voltages of -5V , +12V and -12V the isa-pwr - POWER SUPPLY MODULEcan be mounted on the isa-pc104 - PC/104 to ISA adapter . Warning1: Please do not connect PC/104 CPU/microprocessor card together with isa-pc104 adapter and usbisa-sl card. Warning2: If using multiple isa-pc104 adapters, please mount only one isa-pwr - POWER SUPPLY MODULE. The above configuration replaces the direct control of a PC/104 CPU card under an Embedded OS, with control from a host computer under general OS , through USB . On the software side, the service software of the PC/104 peripheral card - a driver and/or an application has to be converted to work through USB, and transferred to the Host computer. We are offering a software kit - SDKBUS, with samples to help the conversion. Note1: PC/104 cards are generally based on the low power CMOS technology, and can be powered on through the USB cable. Please measure the currents consumed from the PC/104 peripheral and make sure they do not exceed the 500mA/+5V available by the USB specification. Note2: Some of the PC/104 peripherals perform time critical functions. Please evaluate the performance of the new configuration through USB, to make sure all the tasks are performed well. ## 3. Configurations In additions to the minimum configuration described in the previous chapter there are many other possible configurations. One example of a configuration contains - 2 PC/104 peripheral card, two ISA-PC104 - PC/104 to ISA adapters, one usb2isa-sl - USB to ISA slot version card and one ISA card . Each additional ISA card needs an isa-pc104 adapter. The appendix of this article includes pictures - please refer to it for the way of stacking multiple PC/104 and ISA cards. The USB Host computer can serve currently up to 8 cards of the USBISA family. The number of served cards may be increased in the future. The figure bellow offers a way of converting of 2 PC/104 computer systems into a configuration which services the PC/104 peripherals, through USB , from an USB Host computer system . If the peripherals in the figure need additional voltages, the new configurations may include isa-pwr - POWER SUPPLY MODULE. The above configuration will need conversion of the software related to the 3 PC/104 peripherals, to work through USB, on the Host computer. The functioning of each of the PC/104 peripherals needs to be evaluated, to make sure they perform within the assigned parameters. Appendix : Pictures of the PC/104 to ISA adapter and configurations based on it - Top view of the PC/104 to ISA adapter Side view of PC/104 to ISA adapter Unassembled minimum configuration Assembled minimum configuration Mounting a standard ISA card Mixed configuration with a PC/104 peripheral, and an ISA Stacking PC/104 and ISA cards | Quick Store Search Search Term Advanced Search Currencies Select Currency Account Menu Account Login Create New Account Delivery Address Book Email Subscriptions Send Contact Message Recently Visited Pages PC-104-Card-Handling Windows-CE-Support Windows-CE-Support Universal-Software-Layer ISA card - voltages used Popular Pages ARS Technologies Inc. Shopping Cart Send Contact Message USB 2.0 XPRS

Software: ClickCartPro, Copyright 1999-2024 Kryptronic, Inc. Exec Time: 0.272957 Seconds Memory Usage: 3.635895 Megabytes