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  • Complete simulation writen in C#. original:simulator.jpg;;width:640;;height:448
  • Basic testing. original:test-1.jpg;;width:640;;height:480
  • Component placement for Mezzanine PCB.  Mezzanine uses a Freescale 32-bit MCF51AC256 micro. original:mezzanine-placement.jpg;;width:640;;height:465
  • Mezzanine boards back from ExpressPCB. original:mezzanine-1.jpg;;width:640;;height:353
  • original:mezzanine-top.jpg;;width:640;;height:433
  • original:mezzanine-bot.jpg;;width:640;;height:461
  • original:mezzanine-bot-sot223.jpg;;width:551;;height:480
  • First smoke test of Mezzanine.  Small board on ribbon cable is the USBDM debugger for the MCF51AC256 micro. original:mezzanine-smoketest.jpg;;width:640;;height:316
  • Mezzanine, nearly completed.  The microcode is loaded from the SD card. original:mezzanine-with-sd.jpg;;width:640;;height:480
  • Component placement for Control PCB.  Mezzanine is a plug-in, similar to an Arduino Shield. original:control-placement.jpg;;width:640;;height:480
  • Control board back from the fab. original:control-1.jpg;;width:640;;height:438
  • original:control-2.jpg;;width:640;;height:480
  • Mezzanine mounted to Control board. original:control-3.jpg;;width:640;;height:480
  • Mezzanine sockets can be seen in the upper left.  Some components live under the Mezzanine. original:control-4.jpg;;width:640;;height:480
  • Boards use a PC disk drive style power connector original:control-6.jpg;;width:640;;height:480
  • Custom length standoffs used to mount the Mezzanine. original:standoffs.jpg;;width:475;;height:480
  • View of Mezzanine mounting. original:control-7.jpg;;width:640;;height:380
  • Control board with somewhat more assembly.  Some initial testing was performed at this stage. original:control-5.jpg;;width:640;;height:480
  • Component placement for the Data Path board. original:datapath-placement.jpg;;width:640;;height:480
  • Data Path board mostly assembled.  The two EPROMs for a large lookup table to implement the ALU in this version.  The other larger DIP is a byte-wide RAM, which holds the 8080A registers. original:datapath-1.jpg;;width:640;;height:480
  • Testing the card guides I intend to eventually use with a cage. original:card-guides.jpg;;width:640;;height:480
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