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circuit4u

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Play with RP2040 MCU PIO Assembler

using Rust pio-rs library

Jul 30, 2022

Play with RP2040 MCU PIO Assembler

Jul 30, 2022

Play Vimgolf with Helix Editor

set meaning to keystrokes

Apr 22

Apr 22

Install Helix Editor on Chromebook

using Homebrew

Apr 14

Apr 14

How to Prepend Zeros to make CRC Whole Bytes

CRC without boundaries

Apr 7

How to Prepend Zeros to make CRC Whole Bytes

Apr 7

Fun with Digital Dice on Forth

Mecrisp Forth Across to MSP430G2230

Jan 14

Fun with Digital Dice on Forth

Jan 14

Port SmithForth to J1 CPU

DIY machine code Forth

Nov 18, 2023

Port SmithForth to J1 CPU

Nov 18, 2023

How Vernier Scale Works

An Intuitive Understanding

Oct 27, 2023

How Vernier Scale Works

Oct 27, 2023

Cross Two Clock Domains

Send Signal from a Faster to a Slower Clock Domain

Jun 25, 2023

Cross Two Clock Domains

Jun 25, 2023

All your FPGA IO are belong to RP2040 PIO

PIO Assembly to Capture Key features of FPGA Verilog code

Jun 16, 2023

All your FPGA IO are belong to RP2040 PIO

Jun 16, 2023

Connect FTDI SPI with ICE40 FPGA

For bitstream configuration and SPI interface to PC

May 29, 2023

Connect FTDI SPI with ICE40 FPGA

May 29, 2023

circuit4u

circuit4u

memento of electronics and fun exploration for my future self

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