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Zorro bus to Wishbone bridge :: News

News

Aug 23, 2011 slight update main page status with FPGA board test-fixture adapters info
Aug 22, 2011 yet another "nothing yet" status, I've not had free time recently
May 6, 2011 Subphases for phase2, who needs Autoconfig IDs or not, consider two bridges, one for each direction (Z->WB, WB->Z) rather than one bidirectional bridge.
May 6, 2011 description update - need to verify the PCB adaptors I imagine can be made, depends on Spartan3 board signal groupings to PCI connector. Update phase 1 to 1a and 1b. Similar sub-phases will likely come for others too.
Apr 30, 2011 in looking at Minimig/TG68 and aoocs projects, I see that minimig/TG68 are 16bit 68k bus and aoocs is 32bit Wishbone bus. So I guess I need to think more about various bus width bridging. I hadn't thought about that much before, I guess just thinking of Wishbone being 32bit for me, and not realizing that Minimig is 16bit on that side. Hrm. Sure, there's teh 68k/dragonball to Wishbone bridge on OC, but that's only good for a 16bid WB bus too. So I guess I need to think about a new bridge to 32bit WB, or have a look around if there's any existing WB-WB bridges for bus adaptions and have a possibly long chain of bridges together. Or to make Minimig 32bit, whihc would likely be a ton of work, or perhaps the MinimigAGA will already do that when released. Eh, I wish I had more free time. :)
Apr 8, 2011 I've gradually been studying Zorro2 and Wishbone specs. Time is little and things seem to take forever, but I haven't forgotten.
Apr 7, 2011 added link to aoOCS as a likely test platform
Oct 23, 2010 linked to Timing Truetype font for timing diagram editing in docs
Sep 7, 2010 Decision to license documentation under LGPL instead of GFDL, to be able to derive docs from design/environment sources if that comes up.
Jun 30, 2010 Changed Wishbone side from B3 to B4, as the B4 spec was just released.
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