478 Results for "%E3%80%8A%EC%98%88%EC%95%BD%EB%B2%88%ED%98%B8OIOX8489X83O6%E3%80%8B3hours%EB%A0%88%EA%B9%85%EC%8A%A4%EF%BC%B13hours%EB%A0%88%EA%B9%85%EC%8A%A4%EA%B0%80%EA%B2%A9red3hours3hours%EB%A0%88%EA%B9%85%EC%8A%A43hours%EA%B0%80%EA%B2%A9normal 3hours%EB%A0%88%EA%B9%85%EC%8A%A4%E3%81%97%E2%80%A1%EA%B0%95%EB%82%A83hoursdark"

Backplane
Log from Old school IC tester
I decided that interface between ZIF-socket and host machine will be implemented with help of this antique ISA backplane manufactured in 1984 (I bought it for about $20 last month):I cut out it a little to remove part with pull-up resistors, because...

Draft Bus Layout
Log from Retro rack and backplane computer
Here is a draft bus layout - 1 +5V +5V 2 +12V +3.3V 3 4 5 6 } 18 pins for other signals 7 8 9 10 11 12 REFSH RESET 13 M1 CLK 14 INT NMI 15 BUSRQ BUSAK 16 HALT WAIT 17 MREQ IORQ 18 RD WR 19 A14 A15 20 A12 A13 21 A10 A11 22 A8 A9 23 A6 A7 24 A4 A5 25 A2...

Very intelligent video/keyboard console
Log from Retro DIY computer project
Just connecting by Retro computers via FTDI to compute (OS X or windows) we can confirm its operation but always I love "self-sufficiency system". (Indeed (I think), sending command from 21st century sophisticated monster level computer to 80's retro...

Main board schematic
Log from Kobold - retro TTL computer
Today I finished the schematic of the main computer board (the first version, I guess...). You can find it in the file section, and the most important parts will be discussed here. SYSTEM INPUTS AND OUTPUTS The 24 system outputs can be directly...

Basic Oneway Code Complete
Log from An Old Fashion Acoustic Modem for the iPhone
An Integer Version of the DemodulatorAs the code will be ported to a lowly Arduino using C code, I first looked at if I could use 16 bit signed integers. The answer is strictly yes. Strictly in that the 32 bit result of a 16 bit multiplication is not...

More Germanium lemonade, OC70 edition
Log from Clockwork germanium
The log 29. Germanium lemonade covered the OC139 in my stock. I only have 70pcs of this NPN type, but I have significant reserve of the PNP type and it's time to break the suspense. Let's bin some ! n°hFEVbe mVIc mAIce0 mAIces µA 1472126.40.137...

Plans A1/A2, Plan B, & Plan C Details
Log from Mac mini 2018 Hexa Core Cooling Analysis
As I've been working on the project, I've been able to figure out what needs to be done and what I can do in order to try and achieve it. As such, I've been developing backup plans concurrently to each other. What I'll be discussing here is the...

Okay I'll go first, this is a list of crap I'm bringing that anyone can use.
Log from Hackaday Superconference Chat 2016
As I stuff my backpack full of random shit this morning in south Pasadena, I'm reminded of all the cool projects I had in mind when I acquired said shit over the last few years. Generally speaking, I didn't bring any materials to the conference that...

Bitslice
Log from YGREC8
The ROP2 and ALU part has been slowly expanding to the SUXEN but the log 70. The nexus reminds that something is missing : I have forgotten to include PC+1 (NPC) value. So another level of MUX is required, which is fortunate because I had...

fast 68000 block memory move routine comparison
Log from Beckman DU 600 Reverse Engineering
OK, I guess I'll do another log since all I have to do is copy and paste some stuff from a reddit post: https://www.reddit.com/r/m68k/comments/63ov3e/fast_68000_block_memory_move_routine_comparison/simple memory move routines based around MOVE and DBRA...

Relay Refresh 2
Log from Incandescent RAM
Another unpublished draft. sheesh!-----Got simpler, then went all-out... We're talking multiplexing and Write-Complete testing. Pardon the Digital logic, Dunno how to make a rotating drum-ROM with magnets and reed-switches in this simulator. And... well......

Self Optimising Automated Arduino Nutrient Doser
Log from Hacking the way to growing food
This Blog is about making a nutrient dosing system for hydroponics that is plug and play, I didnt quite get it to the full stage of plug and play with this version. But it is almost there. Because the change of nutrient strength of our systems can be...

Latency, RP2040 PIO "wait"
Log from Dreamdrive - Dreamcast Edition
After figuring out that I had way less time to detect the CS lines going low, capturing the state of CS0, CS1, A0, A1, A2, RD, WR, and THEN parsing that data to determine the right register to read from or write to, I decided to go down to basics. What...

Glue logic
Log from STEbus Z8000
The TTL chip glue logic inputs and outputs are: Inputs Outputs AS ALE to two 74F573 chips !MREQ RAM CS B/!W RAM_ODD !CS A18 RAM_EVEN !CS A19 RAM !OE !DS RAM !WE R/!W A4 SCC !CS A5 CIO !CS A0 IDE !CS !DS ST0-3 Adding up to 15 inputs and 9 outputs = 24...

Nonlinear response to improve usability
Log from Stingray
I should apply a gamma curve to the analog axes read from Classic controller to make the response of the stick more subtle near the center and more steep close to the edges. Classic controller analog sticks provide position information with...

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