1216 Results for "%E3%80%8A%EC%B5%9C%EC%A0%80%EA%B0%80 O1O%CE%9E5793%CE%9E7458%E3%80%8B %EA%B0%95%EB%82%A8%EC%95%84%EC%9D%B4%EB%A6%B0%EC%8B%9C%EC%8A%A4%ED%85%9C%E3%86%8B %EA%B0%95%EB%82%A8%EC%95%84%EC%9D%B4%EB%A6%B0%EC%85%94%EC%B8%A0%EB%A3%B8applause%EA%B0%95%EB%82%A8%EC%95%84%EC%9D%B4%EB%A6%B0%EC%8B%9C%EC%8A%A4%ED%85%9C%EA%B0%95%EB%82%A8%EC%95%84%EC%9D%B4%EB%A6%B0%EC%8B%9C%EC%8A%A4%ED%85%9C%EC%8B%A0%EC%82%AC%EC%95%84%EC%9D%B4%EB%A6%B0%EC%A3%BC%EB%8C%80caught %EA%B0%95%EB%82%A8%EC%95%84%EC%9D%B4%EB%A6%B0%E3%8F%87%E3%85%97%EA%B0%95%EB%82%A8%EC%95%84%EC%9D%B4%EB%A6%B0queer"

20230225a - Displaying the Current File
Log from ROM Disassembly - AlphaSmart Pro
sub_F374 has caught my interest because it seems to be painting the LCD with the currently selected file's contents according to several state variables that I have not fully reverse-engineered.The routine begins like this:F374 sub_F374: F374 BD F6 18...

20230214a -- Memory, cont.
Log from ROM Disassembly - AlphaSmart Pro
Operating under the current assumption that RAM is 32 KiB banked at address 0000-7fff, with the first 256 bytes masked off by special function registers and internal SRAM, some other code sections of interest were found. E.g.:ED00 loc_ED00: ED00...

Debugging
Log from 8 Bit TTA Interpreter
Debugging Need to get this project working. One problem is that the Nano does not have enough pins. So I have used a Meduino (a Mega2560 Pro Mini). Here is the schematic: Here is the PCB: The ports (P1 & P2) match the TTA8 bus. A problem with the Meduino...

Re Openings
Log from Commodore CHESSmate Reproduction
In a previous log I said, "I'm not going to overthink this. Random selection from the chess openings is working.". Well I lied. I am going to overthink this. (Well at least think it.) Something I should have done when working on the opening moves was...

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...

Paper Model now Steps. Stepping algorithm optimized. 11 bytes saved.
Log from Mystery 6502 program for the Kim Uno #1kBChallenge
I was looking for a way to make the Excel Paper Model for the Z30 calculate the stepping points so it would be a complete model of the machine. The example shown below is for a rotor with a Ring Setting of 4, the 1 mark on the ring is set to the 4 position...

20230223a - Special Keys and File Ops
Log from ROM Disassembly - AlphaSmart Pro
While revisiting key handler handleKeyScanCode_EE37 and back annotating scan codes into the code, I wind up with this:EE37 handleKeyScanCode_EE37: EE37 13 63 01 04 brclr bCloverKeyDown_63 1 noclover_EE3F ; true if 'clover key down' EE3B 12 61 01 C9 brset...

Micro-coded controller deep-dive
Log from Custom circuit testing using Intel HEX files
In this project, instead of using a standard embedded processor and programming it to execute 3 tasks at hand (parsing HEX character stream, generating HEX character stream, and writing character stream to video RAM driving VGA), I created 3 independent...

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:...

Points about using an ARM uC
Log from ScrolLED watch
Switching over to an ARM based solution is much better than an AVR+RTC chipset solution. Been looking at the STM32F030 chip and it is a perfect fit for this application! It has the following very desirable characteristics:32.768kHz oscillator on-chip....

Different SD card MBR formats
Log from OSI SD Card Operating System (OSISDOS)
I tried a couple of other cards and found that they have different MBR formats with no header. I noted this in a previous log. There's an offset at 0x01BE that points to the MBR. My theory is this is true for "bigger" cards. I think the reason I could...

Building a CP/M System Disk
Log from My CP/M Single Board Computer
Building a CP/M System Disk To avoid rewriting the assembler codes for ccp, bdos and cbios so that they can co-exist in the same file. I can append the i8hex files and remove the "end of file markers". To make the hex file more readable I have changed...

Mass production
Log from Ph0xx
For those wondering how we assembled the boards, we compiled a video of all the different steps. We started off with prototype machinery (Mechatronika M10 and Mechatronika MX70), manual solder paste dispensing using a eC-Stencil-Mate and reflowing...

Update : The plan (First Iteration)
Log from CloverDroid : A Smart Urban Farm
Here is the plan. I plan to turn this into this And here is the design block diagram. There will be 3 sensor node and a nutrient control system. All of them is developed with ESP8266 board (either WeMos D1 mini or NodeMCU). I plan to use Blynk IoT...

Update Code For Three Dollar EC PPM Meter for MCU [Arduino]
Log from Hacking the way to growing food
This code is a slight update of the last one, updated:>Better Uptime Counter>LCD Shield>New Pin out Diagram>Restart Protected Calibration Details>EU and US Plug Calibrated Probe Also a quick update to the code so the calibration value will survive a...

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