User contributions for Mahjongg

27 August 2019

• 12:4812:48, 27 August 2019 diff hist +57‎ Designing the RhoCoCo Retro Home COlor COmputer hardware ‎No edit summary
• 12:4512:45, 27 August 2019 diff hist +89‎ N File:My Home Computer intro.odt ‎ My original thoughts about designing a retro home computer written in 2010. current
• 12:2612:26, 27 August 2019 diff hist −2‎ ZX81PLUS35 ZX81 clone ‎ →‎Inspirational sources used for the design of the ZX81+35
• 12:2512:25, 27 August 2019 diff hist −1‎ m ZX81PLUS35 ZX81 clone ‎ →‎Inspirational sources used for the design of the ZX81+35
• 12:2512:25, 27 August 2019 diff hist +1,295‎ ZX81PLUS35 ZX81 clone ‎ →‎Introduction to the ZX81+35

5 August 2019

• 00:4300:43, 5 August 2019 diff hist +154‎ ZX81PLUS35 ZX81 clone ‎ →‎Its 2019 and I have decided to release my ZX81+35
• 00:4000:40, 5 August 2019 diff hist +119‎ ZX81PLUS35 ZX81 clone ‎ →‎Its 2019 and I have decided to release my ZX81+35
• 00:3600:36, 5 August 2019 diff hist +191‎ ZX81PLUS35 ZX81 clone ‎ →‎Its 2019 and I have decided to release my ZX81+35
• 00:3300:33, 5 August 2019 diff hist +648‎ ZX81PLUS35 ZX81 clone ‎ →‎Its 2019 and I have decided to release my ZX81+35
• 00:2600:26, 5 August 2019 diff hist +262‎ ZX81PLUS35 ZX81 clone ‎ →‎Its 2019 and I have decided to release my ZX81+35
• 00:2200:22, 5 August 2019 diff hist +450‎ ZX81PLUS35 ZX81 clone ‎ →‎Its 2019 and I have decided to release my ZX81+35
• 00:1300:13, 5 August 2019 diff hist +209‎ ZX81PLUS35 ZX81 clone ‎ →‎Keyboard for ZX81+34/35

31 July 2019

• 13:0313:03, 31 July 2019 diff hist +24‎ ZX81PLUS35 ZX81 clone ‎No edit summary
• 13:0013:00, 31 July 2019 diff hist −2‎ ZX81PLUS35 ZX81 clone ‎No edit summary
• 12:5612:56, 31 July 2019 diff hist +427‎ ZX81PLUS35 ZX81 clone ‎ →‎2017 has arrived

30 July 2019

• 22:4022:40, 30 July 2019 diff hist +69‎ ZX81PLUS35 ZX81 clone ‎ →‎Found basic, but major error in ZX81+35 Updating to rev 4.0
• 22:3722:37, 30 July 2019 diff hist +8‎ m ZX81PLUS35 ZX81 clone ‎ →‎On april 12, 2016 I was diagnosed with Sleep Apnea, which means I cannot drive a car!
• 22:3522:35, 30 July 2019 diff hist +3‎ m ZX81PLUS35 ZX81 clone ‎ →‎1/4/2016 ( = 4^0 / 4^1 / 4^2 ) Updated preview
• 22:2922:29, 30 July 2019 diff hist +1‎ m ZX81PLUS35 ZX81 clone ‎ →‎March 27 2016 designed a reasonably well working cassette input port
• 22:2722:27, 30 July 2019 diff hist +1‎ m ZX81PLUS35 ZX81 clone ‎ →‎March 23 2016 first attempt to get cassette port working
• 22:2322:23, 30 July 2019 diff hist +84‎ m Zx81plus34 ‎ →‎what now?
• 22:1622:16, 30 July 2019 diff hist −13‎ m Zx81plus34 ‎ →‎what to do? creating the first home computer is what he did!
• 22:1522:15, 30 July 2019 diff hist −2‎ m Zx81plus34 ‎ →‎what to do? creating the first home computer is what he did!

22 July 2019

• 14:0514:05, 22 July 2019 diff hist +1,167‎ Bringing up Rhococo (first boot, and firmware development) ‎ →‎June 11, 2019 solved sd-card insertion crashes current

21 June 2019

• 11:3411:34, 21 June 2019 diff hist −28‎ Bringing up Rhococo (first boot, and firmware development) ‎ →‎May 22, 2019 trying to get a standard VGA driver (32 x 16 text driver) to work
• 11:3311:33, 21 June 2019 diff hist −1‎ m Bringing up Rhococo (first boot, and firmware development) ‎No edit summary
• 11:3011:30, 21 June 2019 diff hist +1‎ m Bringing up Rhococo (first boot, and firmware development) ‎ →‎May 28, 2019 VGA driver works!

11 June 2019

• 21:1321:13, 11 June 2019 diff hist +17‎ Bringing up Rhococo (first boot, and firmware development) ‎ →‎June 11, 2019 solved sd-card insertion crashes
• 21:0321:03, 11 June 2019 diff hist +28‎ Bringing up Rhococo (first boot, and firmware development) ‎ →‎June 11, 2019 solved sd-card insertion crashes
• 21:0321:03, 11 June 2019 diff hist +105‎ N File:RHOCOCO rev2.1.pdf ‎ changed 100nF cap C13 to 470uF 6V3 to solve inrush current crashes when inserting SD-cards. current
• 20:4820:48, 11 June 2019 diff hist −1‎ m Bringing up Rhococo (first boot, and firmware development) ‎ →‎June 11, 2019 solved sd-card insertion crashes
• 20:4720:47, 11 June 2019 diff hist +16‎ Bringing up Rhococo (first boot, and firmware development) ‎ →‎June 11, 2019 solved sd-card insertion crashes
• 20:4620:46, 11 June 2019 diff hist +429‎ Bringing up Rhococo (first boot, and firmware development) ‎ →‎June 11, 2019 IO-Expander (for SD-Card IO) working
• 16:5316:53, 11 June 2019 diff hist 0‎ m Bringing up Rhococo (first boot, and firmware development) ‎ →‎June 11, 2019 IO expander (for SD-Card IO) working
• 16:5116:51, 11 June 2019 diff hist +600‎ Bringing up Rhococo (first boot, and firmware development) ‎ →‎June 11, 2019 IO expander (for SD-Card IO) working
• 16:4216:42, 11 June 2019 diff hist +94‎ N File:IOExpander working cropped.JPG ‎ I/O expander reading the SD-card interface with a write protected card inserted. current
• 16:3916:39, 11 June 2019 diff hist +1,157‎ Bringing up Rhococo (first boot, and firmware development) ‎ →‎June 5, 2019 Thinking about video modes

4 June 2019

• 22:5022:50, 4 June 2019 diff hist +54‎ Bringing up Rhococo (first boot, and firmware development) ‎ →‎May 28, 2019 VGA driver works!
• 22:4822:48, 4 June 2019 diff hist +404‎ Bringing up Rhococo (first boot, and firmware development) ‎ →‎May 28, 2019 VGA driver works!
• 22:3622:36, 4 June 2019 diff hist +360‎ Bringing up Rhococo (first boot, and firmware development) ‎ →‎May 28, 2019 VGA driver works!
• 22:1122:11, 4 June 2019 diff hist +2,051‎ Bringing up Rhococo (first boot, and firmware development) ‎ →‎May 22, 2019 trying to get a standard VGA driver (32 x 16 text driver) to work
• 20:3620:36, 4 June 2019 diff hist 0‎ N File:Rhococo, first video screen cropped.JPG ‎No edit summary current

1 June 2019

• 01:3701:37, 1 June 2019 diff hist −6‎ Bringing up Rhococo (first boot, and firmware development) ‎ →‎May 22, 2019 trying to get a standard VGA driver (32 x 16 text driver) to work
• 01:3601:36, 1 June 2019 diff hist −6‎ Bringing up Rhococo (first boot, and firmware development) ‎ →‎May 3, 2019 updated schematic and Layout

22 May 2019

• 11:3711:37, 22 May 2019 diff hist +34‎ Bringing up Rhococo (first boot, and firmware development) ‎ →‎May 22, 2019 trying to get a standard VGA driver (32 x 16 text driver) to work
• 11:3611:36, 22 May 2019 diff hist 0‎ N File:VGA TEXT DEMO.jpg ‎No edit summary current

21 May 2019

• 23:1923:19, 21 May 2019 diff hist +334‎ Bringing up Rhococo (first boot, and firmware development) ‎ →‎May 22, 2019 trying to get a standard VGA driver (32 x 16 text driver) to work
• 23:1523:15, 21 May 2019 diff hist +116‎ Bringing up Rhococo (first boot, and firmware development) ‎ →‎May 22, 2019 trying to get a standard VGA driver (32 x 16 text driver) to work
• 23:1223:12, 21 May 2019 diff hist +630‎ Bringing up Rhococo (first boot, and firmware development) ‎ →‎May 4, 2019 programming the propeller works ITS ALIVE!
• 23:0423:04, 21 May 2019 diff hist 0‎ N File:Vga spin.pdf ‎No edit summary current