Gregory's Server*earlier* what i have here is a Sun SPARCstation 1+.
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202 comments
 on the back, we have the usual semi-cursed 13W3 video connector and the Sun keyboard connector. where am i going to find a Sun keyboard? i just happen to have one, new in box! i bought this years ago at Weird Stuff Warehouse when they were still around. i have no idea why, but i'm glad i did. however, they have RJ11 connectors and the keyboard (which is where the mouse plugs in) just has a mini-DIN connector. uh oh. which brings me back to here. does this mouse, despite the connector difference, use the same protocol? looks like it is essentially the same protocol as the version of the mouse (type 4?) designed for the SPARCstation. the output is open collector, inverted async serial, 5 byte. time to build an adapter. the connector is RJ11 (technically 6P4C) but it has these pins sticking out, presumably so you can't plug it into a phone jack. couldn't find a Sun 13W3 cable adapter so I'm doing this to get to VGA.  @tubetime What you need is a Belkin F1DE083UK - adapts to a PS/2 keyboard fine, also cheap, but I had no luck with the 13W3 to VGA connector - needed a separate adapter for that. There's also the Raritan APSSUN which may work better but was too expensive to ship to the UK, but not a problem for you? four months later :blobsweats: i made the Video Snake Oil board that can adapt 13W3 (any type!) to VGA. you just wire up the little pads to whatever your machine needs. i've also installed a ZuluSCSI. this neat little board is a lot cheaper than a SCSI2SD. i'm going to try and install Solaris using a CDROM ISO file. CD6_512.iso is placed on the SD card. it'll be ID 6, 512 bytes per sector. well, it tries to boot from the CDROM but suffers a BAD TRAP. not sure why, maybe i need to update the IDPROM contents. yeah i am guessing the machine type in the IDPROM is invalid so the installer runs the wrong code. wrote a little FORTH program to update the contents of the IDPROM, and it looks like it has a valid host id now. forgot to add that i needed to do a "set-defaults" and a "setenv diag-switch? false" uh oh, RAM parity error. i'm hoping U676 isn't seated all the way and that it is an easy fix. @tubetime ah the Zuluscsi Weren't they the ones who got in a bit of hot water for basically copying the BlueSCSI design? @DosFox i have no idea, there's way too much drama in the retrocomputing community these days @tubetime hah that's true. The more expensive and desirable the computer, the more drama there is  @thejpster yes but these old workstations require 512 byte sectors for their cdroms in order to boot @tubetime This inspires me - I have a VAXStation that uses a 3W3 video output (basically 13W3 without the digital pins) and it's impossible to find cables for it, but there are connectors for it around Do you do any termination or anything active on the board? I've made an RGB port adapter before and got pretty bad ringing, but it could definitely just be the monitor I used since I had no other way of testing. @nkizz no termination, that is done in the VGA monitor (75 ohm) @tubetime I need this board in my life. Twice. Maybe three. Where can I buy them? @tubetime Does that work ok on a multi-sync monitor without sync-on-green?  @tubetime oh THAT might explain the ghosting in the screenshot i saw first 😱 @tubetime I haven't seen a 13W3 cable in a long time! That is quite a project! @tubetime Fantastic. Reminds me of the bare wire ends that I Scotch-taped into my Sega Saturn's video out port 20 years ago... but *significantly* more professional. @tubetime You only need the RGB if your display does sync-on-green. This is why I have a bunch of NEC LCD1990SX, they do sync-on-green and support a 1:1 aspect ratio in addition to stretching to fill the screen. @tubetime A friend @delan has a RPi Pico project to convert a USB KB and Mouse to the serial the SPARCstations use: https://github.com/delan/usb3sun   @tubetime @tubetime You might try asking on the sunhelp rescue list (http://www.sunhelp.org/mailman/listinfo/rescue_sunhelp.org) @tubetime I remember getting my first #sparcstation at #Adobe. Those were heady years in the risc workstation era. The sparcstation, the IBM rs6000, the SGI crimson, and the dec alpha station were all exciting introductions. It’s nice to see one coming back into service.  |
it's going to need a little work but WHAT is that blob of duct tape