Documentation for controller TNT4882*C* chip is also available only under NDA from NI, but talker/listener only version, TNT4882 without C have brief datasheet here No parts are populated on PCB’s bottom side.įor comparison purposes, here’s photo of older GPIB- USB-B adapter, which using Cypress FX and National Instruments TNT4882C-BT GPIB Controller chipset. There are also Texas Instruments TLC7733I and Maxim MAX804CSA supervisors, and few other small logic chips. Image 4: Adapter’s processor block diagram System clock is generated by 40 MHz generator. Cypress CY7C1399BN is just 256-Kbit (32K x 8) SRAM to store realtime data during transfers. It’s documentation is subject of NDA, but there is public datasheet for GPIB talker/listener only version TNT5002-AB, which brings light to most ASIC’s inner structure. GPIB side is served by own National Instruments ASIC, TNT5004-AB, which is GPIB Controller with PCI and Generic interfaces. Main micro-controller to interface USB side is Cypress CY7C68013A, which is EZ-USB® FX2LP™ USB Microcontroller High-Speed USB Peripheral Controller based on 8051.
Image 2,3: NI GPIB USB adapter PCB components and closeup Very brief datasheet just covers basic installation and specification. If we want use it with something like Raspberry Pi with it’s Debian-based Linux system we are alone in the wild. While NI site lists Linux support, it’s declared only for RedHat, Scientific Linux and SUSE. Transfer rates up to 1.8 MB/s ( IEEE 488.1) and up to 7.9 MB/s (HS488).No GPIB cable requirement for instrument connection.Custom ASIC provides maximum IEEE 488.2 performance.There is already newer version available, GPIB- USB-HS+ for about same price ~600 USD new. There are multiple versions of USB- GPIB interfaces from National Instruments, we use previous generation GPIB- USB-HS. National Instruments GPIB- USB-HS dongleįirst, let’s take a look on hardware interface which we will be using in this tutorial. In no event shall the author, National Instruments, Raspberry Pi foundation, or any other 3rd party be liable for any special, direct, indirect, or consequential damages or any damages whatsoever resulting from loss of use, data or profits, whether in an action of contract, negligence or other tortuous action, arising out of or in connection with the use or performance of information published here. Redistribution of files in binary or source form must reproduce the above copyright notice, this list of conditions, link to this page, and the following disclaimer in the documentation and/or other materials provided with the distribution, for example Readme file.Īll information posted here is hosted just for education purposes only and provided AS IS.Redistribution of article must retain the above copyright notice, this list of conditions, link to this page and the following disclaimer.Redistribution and use of this article or any images or files referenced in it, in source and binary forms, with or without modification, are permitted provided that the following conditions are met: Often simple plugging GPIB adapter into system and expecting things to work cause havoc and countless hours wasted, resolving dependencies, compiling pieces of code, tweaking kernels and such. But if you go little aside, using Linux-based OS, things get tricky very quick, especially for engineers who are not familiar of *nix environment and way of things.
#Agilent usb gpib driver Pc#
Using PC is easiest thing, especially Windows-based machines, as most of vendors already supply ready to use libraries and packages to interface their instruments via GPIB. All these usually require a host GPIB controller to run program and issue operations over the bus. Majority of production systems and automated measurements setups using GPIB for decades already. While GPIB interface is slowly replaced by USB, LAN and other less popular modern interfaces, lot of instrumentation are still rely on GPIB as industry standard.
#Agilent usb gpib driver manual#
Obsolete manual setup procedure, do not use together with automated script.Raspberry Pi setup with automatic script.National Instruments GPIB- USB-HS dongle.
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