GPIB-to-USB

Tony Duell wrote: Well, the article looked like they used 75160/75161 as the GPIB bus driver pair. IIRC, if you used 75160/75162, then the HPIB side could be a bus controller. Of course, the hardware here is very simple, and all the smarts are in the microcontroller, so though a "Simple Matter Of Programming" you could have commands from the HPIB going on to USB peripherals or reverse with the original hardware, or you could have a master on the HPIB bus with the other driver chip... One interesting point is that with the new USB-enabled microcontrollers, you could make the solution even smaller... Philips, ST Micro, and Fujitsu all have fairly capable microcontrollers with and ARM-7 core, flash, sram, several parallel I/O ports, and a USB2.0 compatible controller on the die, that would be pretty handy for this sort of application. (The USB2.0 interface on the current batch of chips is USB2.0 _compatible_, but won't run in the fast mode, so you still only get 12MBPS) Bill