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No unread posts Attachment(s) Techniques for reliable high-speed digital circuits

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BigEd

146

494225

Wed Oct 18, 2023 7:48 am

GARTHWILSON View the latest post

No unread posts list of chip dissections

ttlworks

4

6949

Sun Jun 11, 2023 10:45 am

fhw72 View the latest post

No unread posts Attachment(s) Recommendation fast 512k x 8 RAM?

fachat

6

117

Thu Mar 28, 2024 9:31 am

fachat View the latest post

No unread posts Synertek SYM-1 no longer powers on correctly/no keypad

GinDiamond

2

57

Sat Mar 23, 2024 9:16 pm

GinDiamond View the latest post

No unread posts Attachment(s) ATF1508 and ATF1504 breakout boards

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akohlbecker

15

52415

Fri Mar 22, 2024 10:51 am

Nemesis View the latest post

No unread posts Attachment(s) Yet another programmer

barnacle

2

110

Thu Mar 21, 2024 7:40 pm

barnacle View the latest post

No unread posts Attachment(s) Connecting a 16-key keypad to VIA: Did I do it right?

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JeffJetton

21

309

Thu Mar 21, 2024 1:48 pm

drogon View the latest post

No unread posts I made a 12-27V EPROM programmer 8)

AndersNielsen

2

143

Wed Mar 20, 2024 6:29 pm

AndersNielsen View the latest post

No unread posts R6520_M6821 running at low freq.

6502user

5

213

Mon Mar 18, 2024 2:57 pm

drogon View the latest post

No unread posts Attachment(s) Breadboard Buddy BB-ZIF-32 Adapter PCB

Michael

0

142

Sun Mar 17, 2024 3:29 pm

Michael View the latest post

No unread posts Attachment(s) Eprom state machine for vga address, syncs, and blanking

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barnacle

20

434

Tue Mar 12, 2024 9:08 am

barnacle View the latest post

No unread posts Attachment(s) CH375B USB Mass Storage Controller

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DavidBuchanan

23

35980

Fri Mar 08, 2024 2:47 pm

gregorio View the latest post

No unread posts Fastest possible SD card Read with a 6522 VIA?

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NormalLuser

18

1568

Mon Mar 04, 2024 5:46 pm

BruceRMcF View the latest post

No unread posts Attachment(s) Independent Bits Output

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gilhad

18

228

Sat Mar 02, 2024 6:57 am

Yuri View the latest post

No unread posts Attachment(s) Moving beyond 8MHz with standard ICs

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ytropek

40

697

Sat Mar 02, 2024 6:53 am

Yuri View the latest post

No unread posts Attachment(s) 6502 as a VGA controller

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plasmo

42

56951

Sat Mar 02, 2024 3:40 am

plasmo View the latest post

No unread posts Apple II joysticks, SNES gamepads and my homebrew computer

ebadger

0

122

Fri Feb 23, 2024 2:55 pm

ebadger View the latest post

No unread posts Any downside to subbing 6502 with 65816?

pdragon

7

197

Thu Feb 22, 2024 1:07 am

Yuri View the latest post

No unread posts Attachment(s) VT-100 CONSOLE FOR HOMEBREW COMPUTERS

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BigDumbDinosaur

27

11960

Mon Feb 19, 2024 10:29 pm

BigDumbDinosaur View the latest post

No unread posts Using SPI as You Would GPIB

fachat

3

108

Mon Feb 19, 2024 5:46 pm

BruceRMcF View the latest post

No unread posts Attachment(s) Best SRAM options for >32Kb ram?

pdragon

8

189

Mon Feb 19, 2024 3:27 pm

Paganini View the latest post

No unread posts Attachment(s) Success! VIA SR => SD card SPI at 22 cycles/byte

pdragon

11

235

Mon Feb 19, 2024 12:42 am

BigDumbDinosaur View the latest post

No unread posts Attachment(s) The VIA shift register bug

fachat

9

820

Sun Feb 18, 2024 9:47 pm

BruceRMcF View the latest post

No unread posts AVR MCU as keyboard controller (RDY and BE signals on 6502)

SwenW

1

76

Sun Feb 18, 2024 3:20 pm

BruceRMcF View the latest post

No unread posts Attachment(s) Help with Tms9918anl losing signal when background changed

Redragon_Gamer

11

282

Fri Feb 16, 2024 7:59 pm

GARTHWILSON View the latest post

No unread posts Attachment(s) Should i tie wires?

2020jj600andmore

5

113

Fri Feb 16, 2024 3:56 pm

Paganini View the latest post

No unread posts Attachment(s) 8521 dissection

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ttlworks

49

2029

Fri Feb 16, 2024 1:18 pm

fhw72 View the latest post

No unread posts Attachment(s) 74HCT6526 - A MOS6526 implementation with 74xx ICs

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daniMolina

188

35319

Fri Feb 16, 2024 8:56 am

fachat View the latest post

No unread posts Control 20x4 LCD with addr decoding instead of VIA ORB pins?

pdragon

5

159

Tue Feb 13, 2024 3:25 pm

SamCoVT View the latest post

No unread posts Attachment(s) Vector Pull Rewrite for W65C816

AlanCanon

5

154

Sun Feb 11, 2024 5:03 pm

AlanCanon View the latest post

No unread posts Attachment(s) 6502-Teensy Bridge: PCB/Schematic review

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ytropek

17

842

Fri Feb 09, 2024 3:54 pm

ytropek View the latest post

No unread posts Attachment(s) Prototyping board for SOIC and DIP

barnacle

14

9321

Fri Feb 09, 2024 7:50 am

BigDumbDinosaur View the latest post

No unread posts Attachment(s) Simple SPI with 7400 logic

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and3rson

20

2994

Wed Feb 07, 2024 4:53 am

BruceRMcF View the latest post

No unread posts Attachment(s) USB Keyboard to 6502... ?

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drogon

15

1586

Sun Feb 04, 2024 5:43 pm

Proxy View the latest post

No unread posts Attachment(s) 6551 vs 6850 vs 8250 vs ?

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Dajgoro

101

40529

Sun Feb 04, 2024 7:37 am

BruceRMcF View the latest post

No unread posts Attachment(s) Acolyte '816 SBC

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sburrow

25

654

Sat Feb 03, 2024 3:51 pm

BruceRMcF View the latest post

No unread posts Attachment(s) Thoughts on fancy address decoding for 816 systems

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BigEd

16

3855

Tue Jan 30, 2024 8:47 pm

BigDumbDinosaur View the latest post

No unread posts Attachment(s) Potato Semi

barnacle

6

521

Fri Jan 26, 2024 5:37 pm

Agumander View the latest post

No unread posts 65c265 Disable Internal ROM via hardware

RebeccaBlue

3

414

Tue Jan 23, 2024 6:47 pm

tokafondo View the latest post

No unread posts Attachment(s) Adding Apple ][ Video inexpensively onto an SBC (VGA)?

Michael

1

252

Sun Jan 21, 2024 8:51 am

BigEd View the latest post

No unread posts Is the W65C02 (or W65C816) running @3.3V 5V tolerant

AndrewP

0

103214

Thu Jan 11, 2024 2:50 pm

AndrewP View the latest post

No unread posts Attachment(s) POC Computer Version One

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BigDumbDinosaur

563

3050996

Wed Jan 10, 2024 7:51 pm

BigDumbDinosaur View the latest post

No unread posts Attachment(s) Using a 74HC151 as an address decoder?

Michael

3

150288

Tue Jan 09, 2024 7:37 pm

BigDumbDinosaur View the latest post

No unread posts Attachment(s) SB134X, Prototype board for W65C134

plasmo

13

13622

Tue Jan 09, 2024 1:01 pm

drogon View the latest post

No unread posts 6522 shift in timing question

pdragon

5

1008

Mon Jan 08, 2024 9:54 pm

GARTHWILSON View the latest post

No unread posts Olimex Open Source Modern Retro computer with W65C02

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Squonk

30

1593

Mon Jan 08, 2024 4:26 pm

floobydust View the latest post

No unread posts Attachment(s) My way for 6502 communications, UART & SPI/I2C

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maurice6502

46

1002

Fri Jan 05, 2024 10:13 am

fachat View the latest post

No unread posts Attachment(s) Well that was annoying...

barnacle

9

1017

Wed Jan 03, 2024 9:20 pm

barnacle View the latest post

No unread posts Attachment(s) I have half an idea...

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barnacle

46

14497

Tue Jan 02, 2024 12:04 pm

BigEd View the latest post

No unread posts Attachment(s) Basic text-mode VGA output circuit

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gfoot

24

1937

Mon Jan 01, 2024 7:23 pm

WCMiller View the latest post

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