Recreating a HP-25
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06-09-2016, 07:33 AM
Post: #1
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Recreating a HP-25
Hello,
I wanted to tell about one of the projects I'm working on: recreating a HP-25. Of course there is a couple of emulators, but having the calc on one's hand is something else, I think. I decided, because I like FPGAs, to use a small MachXO2 device to recreate the chipset of the calc. Being a work in progress means that it doesn't yet exists outside a simulator, but it seems to runs the microcode . I still have to compare the output to a trace of the java emulator. If anyone wants to peek into the HDL, I posted it here: HDL and Testbench The testbench works with icarus verilog and should still work with Aldec's Active HDL simulator (installed with Lattice Diamond). A circuit is in the works , I have to relearn KiCad again |
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Messages In This Thread |
Recreating a HP-25 - Alejandro Paz(Germany) - 06-09-2016 07:33 AM
RE: Recreating a HP-25 - walter b - 06-09-2016, 09:10 AM
RE: Recreating a HP-25 - Thomas Radtke - 06-09-2016, 10:41 AM
RE: Recreating a HP-25 - PANAMATIK - 06-09-2016, 11:37 AM
RE: Recreating a HP-25 - Thomas Radtke - 06-09-2016, 03:38 PM
RE: Recreating a HP-25 - Alejandro Paz(Germany) - 06-09-2016, 12:03 PM
RE: Recreating a HP-25 - Guenter Schink - 06-09-2016, 07:57 PM
RE: Recreating a HP-25 - Alejandro Paz(Germany) - 06-10-2016, 04:59 AM
RE: Recreating a HP-25 - Guenter Schink - 06-10-2016, 09:13 PM
RE: Recreating a HP-25 - Alejandro Paz(Germany) - 07-09-2016, 04:40 AM
RE: Recreating a HP-25 - PANAMATIK - 07-10-2016, 10:26 AM
RE: Recreating a HP-25 - Alejandro Paz(Germany) - 07-10-2016, 11:57 AM
RE: Recreating a HP-25 - Alejandro Paz(Germany) - 10-26-2016, 07:21 PM
RE: Recreating a HP-25 - PANAMATIK - 10-26-2016, 09:56 PM
RE: Recreating a HP-25 - Alejandro Paz(Germany) - 10-27-2016, 10:55 AM
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