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Hi Paul Indeed interested I'm working on a similar project, though I have a Tek 308 (which I got to verify my own project) Mine is build around a Lattice MachXO2 (in fact a TinyFPGA AX2 board) Display is a I2C LCD or a MAX7219 SPI (as I have these laying around) Project was meant to teach me VHDL coding, in which I'm a totally newbie Hardware is ready, FPGA code is in the very beginning Be happy to share my project Best Hans J Eriksen
Den l?rdag den 1. juli 2023 kl. 00.51.37 CEST skrev Paul Amaranth <paul@...>:
At odd moments over the last couple years I've been working on a cheap,
easy to build design for a signature analyzer to be more or less comparable to the HP 5004a or Tek 308.? I plan on making the design freely available. It annoys me to no end that these instruments have gotten as expensive as they have and this is my response to it. It follows the same general design as the Tek 308 with? some TTL logic to implement the CRC register and a microprocessor for the UI.? In this case I'm using an AT Mega 2560 Pro driving a 4x20 LCD display.? These are easily available, cheap (tenish for the processor, sixish for the display) and the tool chain is widely available and free. That processor is actually a bit overkill, a nano has enough i/o but lacks sufficent ram, so I'm stuck with that without going to a bare chip. I finally got back to it the other week (in order to avoid doing other work :-) and yesterday actually got it to produce it's first actual signatures that match up with my HP5004a. If you want to see a picture of the display, I posted it over in the eevblog test equipment forum under the title "signature analyzer project". Anyone have any interest in updates?? -- Paul Amaranth, GCIH? ? ? ? ? ? | Manchester MI, USA? ? ? ? ? ? ? Aurora Group of Michigan, LLC? |? Security, Systems & Software paul@...? ? ? ? ? ? ? |? Unix/Linux - We don't do windows |
