FPGA Forth machines

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  • I am still in a muddle to get eP16 loaded and working on the Lattice XP2 Brevia2.

    A lot of time has been spent learning Diamond IDE, running down typos in C.H.Ting's text, and just learning more about eForth.

    I haven't quit. I will continue on. But it is a lot slower than what I thought might be a simple load and run. When the day arrives that I get a got compiled image of eP16 for the target XP2 Brevia2, I will share it with all. And then I will move on to compile the same for a BeMicroCV and share the same.
    Hwang Xian Shen, Puddleby-on-the-Marsh.
    All things considered, I can live and thrive without Microsoft products. LINUX is just fine.
  • Has any progress been made toward a successful eP16?

    I'd love to hear if that is so.
  • Hi All,

    I am a Forth enthusiast from the UK. I had a Jupiter Ace back i 1984, when I was at college. I also had one of Chuck Moore's Novix NC4016 chips on a dev board - from '87 or '88.

    I am a newcomer to Propeller, but fascinated by the architecture. I'd like to build a self hosting workstation using multiple Props - combined with SRAM (PRAMs ???)

    You might know that the Silicon Valley Chapter of FiG, meet once a month at Stanford and generally produce a couple of Youtubes of their talks.

    C.H. Ting is a regular speaker there. Next month, May, they are running a Brevia 2 FPGA Workshop to implement Ting's soft eP8080 core and run eForth on it.

    Links to SVFig here https://svfig.github.io/

    I have an example of James Bowman's J1 Forth cpu running on a Xilinx Spartan 6 board (Gadget Factory's Papillio Duo). James released the verilog and bitfile last September (He's also an occasional member at SVFiG).

    James suggested that 3 or 4 of his J1 cores would fit into a Spartan 6 - X9.

    There's a neat Spartan 6 dev board from Saanlima Electronics - called Pepino. Designed for all of these retro computing projects - in particular Project Oberon.

    http://www.saanlima.com/pepino/index.php?title=Welcome_to_Pepino

    He also has a version of it trimmed to fit an iCEStick using the Project IceStorm open source tool chain- see video.

    http://www.excamera.com/sphinx/article-j1a-swapforth.html

    I got Tachyon installed on my P1 dev-board - and hope to build up a VGA adaptor for it this weekend.

    regards

    Ken

    London
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