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  A rare defective PCB from JLCPCB!
By: plasmo on Mon, 21 February 2022
3 3442 Thu, 24 February 2022 08:35
By: just4fun
  Z180/upd7220 SBC
hypothetical design concept considerations
By: lynchaj on Fri, 28 January 2022
18 13256 Tue, 08 February 2022 18:12
By: plasmo
  Simple test for upd7220
By: plasmo on Wed, 02 February 2022
6 5261 Thu, 03 February 2022 09:54
By: e2k
  example schematic for upd7220 character mode
How to do character mode (text mode) with upd7220 GDC
By: lynchaj on Wed, 02 February 2022
2 2846 Wed, 02 February 2022 16:00
By: lynchaj
  Intro: 6502 on a backplane and various (6502, TMS9918, LCD) emulator libraries (now with links)
Intro: 6502 on a backplane and various (6502, TMS9918, LCD) emulator libraries (now with links)
By: visrealm on Sun, 30 January 2022
2 6812 Mon, 31 January 2022 14:35
By: visrealm
  USB to FDC ( 1 2)
By: lynchaj on Wed, 20 September 2017
51 61886 Mon, 31 January 2022 05:34
By: lynchaj
  VGA piggybacked on RAM, an experimental prototype
By: plasmo on Sat, 29 May 2021
3 4897 Sun, 30 January 2022 14:47
By: plasmo
  x4 DRAM tester (4416, 4464/41464, 44256, etc.)
sorting through bad 41464 DRAM chips from eBay
By: lynchaj on Fri, 14 January 2022
2 4032 Thu, 27 January 2022 13:24
By: quarterturn
  ECB Graphic VDU
By: jdgabbard on Fri, 31 December 2021
3 3916 Thu, 27 January 2022 13:15
By: quarterturn
  DS1210s from eBay
Got a bad batch, anyone get good ones?
By: lynchaj on Tue, 07 September 2021
16 13292 Thu, 27 January 2022 11:35
By: Sergey
  Monster FDC - Dual-FDC floppy disk controller card supporting 8 floppy drives
By: Sergey on Fri, 03 December 2021
8 8212 Thu, 27 January 2022 11:02
By: Sergey
  MiniMax8085 - Extension Board
By: Sergey on Fri, 08 October 2021
8 8154 Wed, 26 January 2022 08:05
By: Sergey
  Debugging a SBC v2 Rev. 005i
By: moritzp on Sun, 23 January 2022
0 1540 Sun, 23 January 2022 05:53
By: moritzp
  Dave (Yoda) Mehaffy's passing
By: lynchaj on Fri, 21 January 2022
0 1541 Fri, 21 January 2022 03:47
By: lynchaj
  Zeta 2 and ParPortProp
By: stefanf on Tue, 18 January 2022
7 6226 Fri, 21 January 2022 01:09
By: stefanf
  Debugging a SBC V2-004
No serial output ( 1 2)
By: edzard on Fri, 09 July 2021
51 36226 Thu, 20 January 2022 10:55
By: moritzp
  ROM-less 6502-based EPROM programmer
By: plasmo on Thu, 25 November 2021
1 2504 Tue, 18 January 2022 21:05
By: plasmo
  Zero Glue logic 6502 SBC
By: plasmo on Mon, 17 January 2022
0 2754 Mon, 17 January 2022 21:17
By: plasmo
  porting zmodem to CP/M
Looking for help & volunteers ( 1 2 3)
By: lynchaj on Wed, 13 October 2021
94 61598 Sun, 16 January 2022 07:27
By: lynchaj
  help needed
By: lynchaj on Thu, 30 December 2021
1 2236 Sun, 16 January 2022 05:40
By: lynchaj
  RTL8019AS Ethernet board for Z80 MBC
considering this design
By: lynchaj on Sun, 02 January 2022
2 3465 Fri, 14 January 2022 15:17
By: lynchaj
  Z80 Assembler software for Windows PC - what are you using?
Z80 Assembler software for Windows PC
By: cluso99 on Tue, 23 November 2021
7 7386 Sun, 09 January 2022 07:16
By: cluso99
  Need a volunteer...
port z80test to CP/M and z80asm or uz80as
By: lynchaj on Fri, 30 July 2021
5 5697 Sun, 09 January 2022 07:10
By: cluso99
  RetroBlade2 - A Z80 CPM Single Chip Computer (now passes all zexall v0.18 tests)
By: cluso99 on Fri, 23 April 2021
11 11702 Sun, 09 January 2022 06:40
By: cluso99
  upd7220 GDC design on Hackaday.io
Giving the upd7220 another go
By: lynchaj on Sun, 02 January 2022
5 4966 Fri, 07 January 2022 10:37
By: e2k
  ECB prototyping PCBs in stock at Conrad.de
Several types of ECB PCBs available and in stock at German online electronics retailer
By: moritzp on Wed, 05 January 2022
0 1655 Wed, 05 January 2022 05:31
By: moritzp
  REH CPU280 ..things that I want todo... ( 1 2)
By: oldspark on Sat, 01 February 2020
43 45384 Wed, 05 January 2022 01:48
By: oldspark
icon5.gif SBC V2 - 004v or 005i? Or rather Z180 Mark IV
is SBC V2 005i ready and recommended?
By: moritzp on Mon, 03 January 2022
2 2949 Mon, 03 January 2022 13:21
By: moritzp
  Fuzix with 6502
Using CC65 with Ubuntu
By: floobydust on Mon, 03 January 2022
0 1602 Mon, 03 January 2022 12:50
By: floobydust
  m68k-elf-gcc cross-compiler with new 68k HW: the nightmare begins... (but with an happy ending...)
By: just4fun on Sun, 25 April 2021
20 22154 Mon, 03 January 2022 11:23
By: dwil
  EASyTrap trap 15 services on the CB030 (SW ?)
By: curbie on Mon, 27 December 2021
12 8888 Thu, 30 December 2021 14:52
By: curbie
  PS/2 Mouse test software
Z80 or 8080 assembler code
By: lynchaj on Fri, 24 December 2021
3 3248 Sun, 26 December 2021 10:21
By: lynchaj
  Grant Searle's (not-so-) Simple-Z80 :-)
adding a simple monitor and M/C support
By: phil_g on Mon, 08 November 2021
8 8591 Sun, 26 December 2021 10:03
By: plasmo
  ECB-4PIO-I2C
Respin
By: b1ackmai1er on Sat, 06 February 2021
4 5510 Thu, 23 December 2021 08:13
By: jdgabbard
  High speed block transfers on ECB or Z80 MBC
Using MCU as DMA-like IO device
By: lynchaj on Tue, 21 December 2021
5 4553 Wed, 22 December 2021 02:45
By: tapy
  CRT Kaypro 4/84
By: kurt_z80 on Sun, 19 December 2021
1 2306 Mon, 20 December 2021 05:35
By: kurt_z80
  MB020 AKA Franken020, 68020 for RC2014
By: plasmo on Mon, 13 December 2021
4 4393 Thu, 16 December 2021 19:05
By: plasmo
  GBS-8200 experiences
RGB to VGA conversion
By: lynchaj on Fri, 10 December 2021
8 7437 Thu, 16 December 2021 05:26
By: lynchaj
  68000 speed fake?
Is this fake or not? Can't find the speed ratings.
By: guus.assmann on Sun, 12 December 2021
3 3372 Tue, 14 December 2021 12:55
By: quarterturn
  Straight serial ASCII recorder/player project?
By: phil_g on Sat, 04 December 2021
4 4436 Sat, 11 December 2021 01:58
By: phil_g
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