beu1000-evuba

beu1000-evuba is a skill for Claude Code, Codex from alexex1993/mcu-skills. It costs 0 tokens per session (7,660 once invoked), scanned A, original, MIT.

A hardware-specific guide for writing firmware for the BE-U1000, a RISC-V microcontroller, on Baikal Electronics EVU-BA development boards. It documents the chip, board wiring, SDK, build setup, and built-in peripherals.

In plain words
What is it for?
Use it to build, flash, and debug firmware using the board’s UART, flash memory, PWM, ADC with DMA, CAN FD, SPI, watchdog, and interrupt features.
Why use it?
It reduces the need to piece together details from hardware manuals and SDK documentation. It also helps avoid silent faults where firmware runs but a peripheral behaves incorrectly.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: reads .claude/ paths.

Good fit Use it to build, flash, and debug firmware using the board’s UART, flash memory, PWM, ADC with DMA, CAN FD, SPI, watchdog, and interrupt features.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/alexex1993/mcu-skills/beu1000-evuba
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add alexex1993/mcu-skills --skill beu1000-evuba
Clone the repo
git clone --depth 1 https://github.com/alexex1993/mcu-skills

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for beu1000-evuba

README.md
[![agentmods](https://agentmods.dev/badge/skills/alexex1993/mcu-skills/beu1000-evuba/github.svg)](https://agentmods.dev/skills/alexex1993/mcu-skills/beu1000-evuba)
Your own site
<a href="https://agentmods.dev/skills/alexex1993/mcu-skills/beu1000-evuba"><img src="https://agentmods.dev/badge/skills/alexex1993/mcu-skills/beu1000-evuba/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for beu1000-evuba

Your own site · 80×15
<a href="https://agentmods.dev/skills/alexex1993/mcu-skills/beu1000-evuba"><img src="https://agentmods.dev/badge/skills/alexex1993/mcu-skills/beu1000-evuba.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 0 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 7,660 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector warn 7 Sept 2026
SkillSpector: 1 finding, up to medium

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • medium analysis-evasion · line 1
    Suspicious Unicode normalization or mixed-script content
    Fix: Review the flagged content for security risks. Ensure no credentials, secrets, or sensitive data are exposed.
How audits are shown
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00000 $0.07660
Opus 5 $0.00000 $0.03830
Sonnet 5 $0.00000 $0.01532
Haiku 4.5 $0.00000 $0.00766

Measured 8d ago against content hash 10fed689dec7, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

beu1000-evuba scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 8d ago.

The scan reads SKILL.md. This mod also ships 1 executable file (template/variants/new-project.sh), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

skills/baikal/beu1000-evuba/SKILL.md · 331 lines

How it starts

The opening of the file, as written. The whole thing — 331 lines — stays where its author put it; the contents beside it link to each section on GitHub.

BE-U1000 на плате EVU-BA-2.1

Знание об этой плате и этом кристалле, которое иначе собирается по RM, техспецификации, ТО платы и неделе отладки. Почти все отказы здесь тихие: плата работает, просто не так — или молчит, будучи исправной. Поэтому детали лежат в справочных файлах, и их следует читать, а не додумывать.

  • reference/board-hardware.md — полный справочник по железу: карта выводов и разъёмов, питание, сброс, режимы загрузки, карта памяти, тактирование, обзор SDK, плюс часть II: система сборки, прерывания, поваренная книга по блокам, прошивка и таблица «признак → причина → лечение».
  • reference/recipes.md — готовый код, извлечённый из template/: Makefile, консоль, временная база, захват, импульс, АЦП+DMA, CAN FD, SPI, eFlash, WDT.
  • template/работающий проект: собран в четырёх сочетаниях (--full/--minimal × eFlash/TCM) и прогнан на плате 2026-08-31 — светодиод, консоль, меню, захват, импульс, АЦП. Плюс сценарий развёртывания. Смотри template/README.md.

Ориентация

Кристалл BE-U1000, QFN-88. Три ядра RISC-V: 0 и 1 — CloudBEAR BR-350 200 МГц (ilp32f), 2 — BM-310 100 МГц, без FPU (ilp32)
Память eFlash 256 КБ 0xA0000000, TCMA 64 КБ 0x40010000, TCMB 96 КБ 0x40020000, SRAM 32 КБ 0x70000000, QSPI1 (плата, 16 МБ) 0x90000000
Тактирование генератор G1 25 МГц на CLKI (кварца у кристалла нет). Перемычка CLK на XP1 переключает на внутренний RC-генератор. PLL по умолчанию не включена
Светодиод / кнопка LD1 PC0 активен высоким / SB1 PC13 нажата = ноль. SB2 — аппаратный сброс
Консоль и прошивка UART0 PA6/PA7, АФ #1, разъём XS2 «JTAG UART0» (FT2232HL). Это единственный UART, выведенный на USB
Аналоговые входы 8 штук, VIN0…VIN7 — выделенные выводы, XP8 конт. 28, 30, 32, 34, 36, 38, 35, 37; «AREF» — 7. Три АЦП 12 бит 1 MSps делят их
Импульсные блоки 4 × PWMA (16 бит, захват, одиночный импульс, dead-time), 2 × PWMG, 2 × TIM (32 бита, 4 канала)
Шины 2 × CAN FD (трансивера на плате нет), 4 × SPI (ведущими умеют только SPI1 и SPI3), 4 × I2C, до 7 UART, USB OTG (XS1)
Отладка JTAG отладчиком на плате (тот же FT2232HL) либо внешним через XP6; JTAG разведён на PA0…PA4
Порты на гребёнках XP9 — весь порт A, XP10 — весь порт B, XP8 — весь порт C плюс питание и входы АЦП

Read the full file on GitHub · 331 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 8d ago First seen · 331 lines · 0 tokens per session scan A 10fed689dec7

Subscribe to this mod's changes

beu1000-evuba is a skill published in the GitHub repository alexex1993/mcu-skills (17 stars, last pushed 2d ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 7,660 tokens. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-04.

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