Show thread@Rp12Biker Jun 17, 2025
Exact 676 solder points later the #SC113 backplane as expansion for the #SC126 is fully populated. Next project is the small IO Card for another possible blinkenlight. But I'm afraid I don't have all the ics for it in the moment.
#RetroComputing #ZilogZ180
@Rp12Biker Jun 16, 2025

The little #CPM #workstation is finished. My evening work consisted of packing it in a nice case and starting the backplane soldering. But there are still plenty of soldering points left, I'll have to do that tomorrow as well.

Do any of you #Pascal nerds knows a source for porting #Eliza to #TurboPascal3, the first good Turing test in #BASIC?
#RetroComputing #ZilogZ180 #SC126

@Rp12Biker Jun 11, 2025
Playing around with a PROFILE.SUB and the SUBMIT command to get a kind of AUTOEXEC.BAT under #CPM2. It makes a lot of fun to play with such an old technique and shows how restless our time has become.
#RetroComputing #CPM #ZilogZ180
@Rp12Biker Jun 8, 2025
But after a complete full compile of the whole directory the switching to turbo mode works now.
So, at least I've been able to address one of the two outstanding issues today. Tomorrow I'll be back at the museum to see if I can convince the move-it software to transfer a file using an old 486 and a real serial port.
#RetroComputing #KneisnerM100 #ZilogZ180 #SC126
@Rp12Biker Jun 8, 2025
A quick question for those with experience: Can someone tell me which file in #RomWBW controls which ROMs are subsequently written to the #EEPROM? I mean the ones listed with "L." I'd like to remove some operating systems and store compilers instead.
#RetroComputing #ZilogZ180
@Rp12Biker Jun 6, 2025
Configuration of the #SC126 overclocking (*2) failed with CPUSPDCAP + CPUSPDDEF. But made my first own #RomWBW.
And tried my first small #TurboPascal program and programmed the LED port with blinkenlights 😀
#RetroComputing #ZilogZ180
@Rp12Biker Jun 5, 2025
After waiting a few days to get all parts the #SC126 with #RC2014 bus is running out of the box. Has to remember the DCD0 jumper, without RomWBW does not start to prompt. Next steps are the addition of SD-card for filesystem and look for a source how to "overdrive" the processor ;)
#RetroComputing #ZilogZ180
@Rp12Biker May 26, 2025
Because of the all in one design I decided to build another #RC2014 hardware. I choose a #SC126 mainboard, which I ordered yesterday. The support for it's onboard hardware seems to be more complete in #RomWBW. And with a case it will be a nice 'full workstation'
#RetroComputing #ZilogZ180 #Tinkering
@Rp12Biker May 25, 2025

The little #RC2014 #Z180 computer is finally running. I had some initial difficulties because power via the serial-to-USB adapter was a bit weak. With an external power supply, it's now running rock-stable. And believe me, it's much more faster than the #KneisnerM100 😀

The crystal oscillator will, of course, be replaced with a smaller one. This is a bit experimental at the moment ;)
#RetroComputing #ZilogZ180 #RC2014