1559 Results for "%EC%9E%A1%ED%86%A0%ED%86%A0%EB%94%94%EB%B9%84 %ED%85%94%EA%B7%B8%EB%9E%A8 DBmong %ED%86%A0%ED%86%A0abc %E1%92%A4 %EC%9E%A1%ED%86%A0%ED%86%A0%EC%82%AC%ED%96%89%EC%82%B0%EC%97%85 %ED%86%A0%ED%86%A0db%EC%B5%9C%EC%A0%80%EA%B0%80 %E1%92%A3 %EC%8B%A0%EC%9A%A9%EB%94%94%EB%B9%84%ED%8C%90%EB%A7%A4"

We Have Blinkenlights!
Log from 2:5 Scale KENBAK-1 Personal Computer Reproduction
With the wiring complete I wrote a small program in Python to test the lights, buttons, and switches on the front panel. To be clear this is NOT the KENBAK-2/5 emulator running a program (yet). As it turns out I did have to replace one of the LEDs...

ETTL protocol with the EOS RP & 580 EX II
Log from Wireless ETTL flash conversion
The STM32 board was just a hair bigger than the PIC, but the biggest pieces are still the power switch, channel button, & battery. The plan is just to print an L enclosure which scotch tapes around the hot shoe & sticks up. The antenna will...

Complete BASIC program
Log from Joy232
I have wrote a complete BASIC program for loading the hook code using the MSX and used "LLIST" command to transfer the program to the PC using the hook code itself. This version was named "complete" because it has instructions on how to change the baudrate...

20230222b A Tale of Two Translations
Log from ROM Disassembly - AlphaSmart Pro
There are several translation routines found during the file sending stuff that translate one character value into another one. Some we understand, like this one:F4DC sub_F4DC: F4DC 84 7F anda #$7F ; reset high bit F4DE 16 tab F4DF 4F clra F4E0...

Rev1 Voltage Test
Log from Multimeter
I did another test with the rev1 prototype, this time only measuring voltage, and bringing it all the way to the maximum voltage of 60V. Again I am doing calibration and comparison to my Fluke 101 Multimeter. This has a problem as the Fluke 101 does...

20230216a -- RAM signature stamping
Log from ROM Disassembly - AlphaSmart Pro
Revisiting the RAM signature stamping knowing what I know now, I can better see what's going on and record that knowledge. The RAM stamping routine now looks like this:F723 ; stamp 'ram valid signature' on RAM page 0 and 3 F723 stampRAMsignature_F723:...

20230222a -- Hunting for PS/2 Stuff
Log from ROM Disassembly - AlphaSmart Pro
Eager to get the remaining scan codes for the keyboard, I started thinking about exploring the keyboard emulation aspect. The product apparently works in two modes: 'standalone', which is what I've considered so far, and 'keyboard emulation'...

September 28th 2023: I can't make the linear actuator move precisely
Log from Automatic Moving Cricket Wicket
It was dumb to use a DC motor for this project. I should have just ponied up the resources for a high speed stepper. My plan was to attach a rotary encoder to the DC motor to accurately measure the number of rotations. This is not easy....First, I tried...

OPS ENUMERATED - Draft
Log from TIS-100 (Geiger)
This represents a complete OPCODE list with 14 Constants (int values) available and 10 Labels (byte values) available for creating subroutines. Constants were favored over Labels, but this is up for evaluation. NOP and HCF were both added to the official...

Control Board FPGA Pinout
Log from BARCO NX-4 GROUP REVERSING ADVENTURE
I might be missing a few connections yet which I'll correct as I come across them, but here is the pinout of the XC3S250E FPGA on the control board. Note that the SRAM and the Flash share an interface bus. Also note that the JTAG interface...

How ESP-NOW really works ?
Log from Linux-ESPNOW
To implement the ESP-NOW Protocol, we first need to understand how it works in details. The datasheet doesn't say much on the really low level, especially on the acknowledgment behavior. To understand what ESP-NOW does, I use Wireshark with my PC Wifi...

Algorithm bits
Log from Modular Humanoid Robot "MARB"
In this log I will discuss some algorithm ideas I have in mind for MARB. Some are easy, some require higher math. 1. Weather forecast MARB will not be connected to the internet. Call me old-fashioned, but it has nothing to do with AI to get for instance...

20230219b -- Actual File Sending
Log from ROM Disassembly - AlphaSmart Pro
Having found the send speed setting, I got a bit interested in the file sending process itself. Tracing back a reference to "Sending....Press any key to stop. " text, I find sub_F013:F013 ; XXX prepare to send (flags and prompt) F013 sub_F013:...

Top 100 Authors by Followers
Log from Statistics for 2015 Hackaday Prize Entries
# Author Followers Skulls Project Comments View Count 1 movax 617 198 5 160 88600 2 The Big One 498 170 3 74 36100 3 Chris Hamilton 412 62 40 25 15031 4 Andreas Hoelldorfer 370 142 1 38 19900 5 IngGaro 333 88 1 21 31700 6 Debasish Dutta 301 136 3 77...

Z80 (CP/M) Writing to SD Card
Log from 3-Chip Z80 Design
Digging into SD card writes means shifting gears from the Boot BIOS source code since the Boot BIOS code only does reads. The CP/M BIOS code (CBIOS128.LST) which does the reads/writes after booting. Here's the BIOS code for writes to the SD Card: 0754...

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