Search Articles — Sudonull

https://sudonull.com/uart-cli-for-debugging-mcu-firmware

UART-CLI simplifies diagnostics of embedded systems: GPIO, logs, tests without JTAG. Instructions for middle/senior dev. Master it for quick bug fixes.

https://sudonull.com/microcontroller-debugging-errors-swd-and-hardware-bugs

Analysis of Typical Bugs When Working with MCU: SWD Pin Conflicts, ESD, Flash Configuration, Crystals. Practical Fixes for Middle/Senior Developers. Study to Avoid.

https://sudonull.com/jz-f407vet6-overview-of-the-stm32f407vet6-board

Technical breakdown of the JZ-F407VET6 training board: peripherals, debugging, limitations. Ethernet, CAN, USB for embedded projects. Suitable for firmware prototyping.

https://sudonull.com/launching-risc-v-k1921vg015-toolchain-and-openocd

Setting up riscv-gnu-toolchain, OpenOCD with DirtyJTAG for K1921VG015. Step-by-step build, GCC14 patches, flashing in WSL. Instructions for middle/senior dev.

JTAG - Wikipedia

https://en.wikipedia.org/wiki/JTAG

JTAG allows device programmer hardware to transfer data into internal non-volatile device memory (e.g., CPLDs). Some device …

What is JTAG and how can I make use of it? - XJTAG Tutorial

https://www.xjtag.com/about-jtag/what-is-jtag/

You may be familiar with JTAG because you have used tools with a JTAG interface. Processors often use JTAG to provide access to …

We are boundary-scan – JTAG

https://www.jtag.com/

We are happy to serve you! We have been able to solve thousands of board test problems by actively engaging with our customers. …

Introduction to JTAG and the Test Access Port (TAP)

https://www.allaboutcircuits.com/technical-articles/introduction-to-jtag-test-access-port-tap/

Nov 18, 2020 · JTAG has become a standard in embedded systems, and it is available in nearly every microcontroller and FPGA on …

JTAG - Pin Configuration, Architecture, Working and Its Applications

https://www.elprocus.com/jtag/

JTAG (Joint Test Action Group) is a well-established IEEE 1149.1 standard that was developed in the year 1980 to solve the …

JTAG and IJTAG Explained: From Basics to Advanced Concepts

https://rvidisharoopchand.substack.com/p/jtag-and-ijtag-explained-from-basics

Aug 26, 2025 · In this blog, we explored the fundamentals of JTAG and IJTAG networks and understood their importance. In Part 2, …

How the JTAG TAP Controller Works

https://www.jtag.com/how-the-jtag-tap-controller-works/

A detailed technical guide to the JTAG TAP controller, covering the state machine, TMS sequences, instruction and data register …

Technical Guide to JTAG - XJTAG Tutorial

https://www.xjtag.com/about-jtag/jtag-a-technical-overview/

Advances in silicon design such as increasing device density and, more recently, BGA packaging have reduced the efficacy of …

JTAG Architecture – VLSI Tutorials

https://vlsitutorials.com/jtag-architecture-overview/

JTAG is the acronym for Joint Test Action Group, a name for the group of people that developed the IEEE 1149.1 standard. The …

What is Jtag - FPGA Beginner

https://icstutorial.com/what-is-jtag/

JTAG stands for Joint Test Action Group. It is a standard interface used in digital electronics for testing and debugging printed circuit …