Hey Mike, Thanks for your response! Yeah, I sure do need to catch up on stuff. Back in the 80s when I was at Bausch & Lomb Analytical Systems Division, I could quote to you specs about nearly any 8-bit and a few 16-bit CPUs extant at the time. I did digital design and competitive analysis of competitor's products and have forgotten more since then than I can recall nowadays, doggone it. Since then, I've been working in the machine tool control realm and, later till retirement, electrical contact physics at Cummins Inc. So, I want to tutor myself on FPGA tech and the available (and free :-) ) programmings apps as part of catching up, amongst a lot of other stuff. At least the ARM processor architecture is rather standardized now such that the RasPi and other modern solutions can be understood and readily adapted without spending time and financial resources on learning nuances of yet another CPU architecture. Never let yourself just sit and get 'rusty' in retirement. I'm sure I'll bug the list once in a while on some of the old hardware questions. Kind regards, -Chris F. On 12/28/2024 11:41 AM, Mike Rieker via vcf-midatlantic wrote: Hi Chris, The Zynq is a processor chip like a BCM used on a RaspberryPI but instead of simple GPIO, it has a big FGPA 'fabric' between its internal ARM processor and GPIO pins. The ZTurn is a particular board that contains a Zynq chip and brings out 90+ pins to connectors on the back. So it is well suited to interface to a processor's IO and memory busses. You can write Verilog or VHDL to program the FPGA to look like the device registers, then the ARM can do the IO simulation and update the device registers. Mike -- ================================================================ Christian R Fandt Jamestown, NY 14701
Electrical/Electronic Collector & Historian: Radios, Early Computers, Test Equipment Radio restorations: Pre-1970s Automotive & Home radios Retired engineer/consultant on electrical/electronic contact physics
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