velxio/test/test_custom_chips
David Montero Crespo 7f2014bef7 Add ESP32 chip demos and comprehensive tests for I2C, SPI, and UART interactions
- Implemented `esp32_spi_chip_demo.ino` to demonstrate SPI communication with a 74HC595 shift register.
- Created `esp32_uart_chip_demo.ino` for UART loopback testing with ROT13 transformation.
- Added Python tests for compiling chips and sketches, ensuring valid WASM output and successful compilation for various board families.
- Developed end-to-end tests for ESP32 with custom chips using I2C and SPI, validating synchronous communication through the backend.
- Introduced GPIO bridge tests to verify serial communication and GPIO state changes.
- Ensured all tests validate the expected behavior of the custom chips and their interaction with the ESP32 firmware.
2026-04-28 19:24:39 -03:00
..
fixtures Add ESP32 chip demos and comprehensive tests for I2C, SPI, and UART interactions 2026-04-28 19:24:39 -03:00
scripts Add ESP32 chip demos and comprehensive tests for I2C, SPI, and UART interactions 2026-04-28 19:24:39 -03:00
sdk Add ESP32 chip demos and comprehensive tests for I2C, SPI, and UART interactions 2026-04-28 19:24:39 -03:00
sketches/i2c_eeprom_demo Add ESP32 chip demos and comprehensive tests for I2C, SPI, and UART interactions 2026-04-28 19:24:39 -03:00
src Add ESP32 chip demos and comprehensive tests for I2C, SPI, and UART interactions 2026-04-28 19:24:39 -03:00
test Add ESP32 chip demos and comprehensive tests for I2C, SPI, and UART interactions 2026-04-28 19:24:39 -03:00
.gitignore Add ESP32 chip demos and comprehensive tests for I2C, SPI, and UART interactions 2026-04-28 19:24:39 -03:00
README.md Add ESP32 chip demos and comprehensive tests for I2C, SPI, and UART interactions 2026-04-28 19:24:39 -03:00
package-lock.json Add ESP32 chip demos and comprehensive tests for I2C, SPI, and UART interactions 2026-04-28 19:24:39 -03:00
package.json Add ESP32 chip demos and comprehensive tests for I2C, SPI, and UART interactions 2026-04-28 19:24:39 -03:00
vitest.config.js Add ESP32 chip demos and comprehensive tests for I2C, SPI, and UART interactions 2026-04-28 19:24:39 -03:00

README.md

test_custom_chips

Sandbox aislado para validar el sistema de custom chips de Velxio antes de integrarlo al frontend. Cero dependencia de Wokwi.

Objetivos

  1. Probar que se puede cargar un .wasm (chip compilado a partir de C) y enrutarlo al simulador.
  2. Probar que un sketch de Arduino real (.hex compilado con arduino-cli) puede comunicarse con el chip vía GPIO e I2C.
  3. Mantener fidelidad 1:1 con la infraestructura de Velxio (PinManager, I2CBusManager, AVRSimulator) para que el código que se valide acá sea trivial de portar.

Estructura

test_custom_chips/
├── package.json
├── README.md
├── vitest.config.js
├── sdk/
│   ├── include/
│   │   └── velxio-chip.h            ← API que ven los chips
│   └── examples/
│       ├── inverter.c
│       ├── inverter.chip.json
│       ├── eeprom-24c01.c
│       └── eeprom-24c01.chip.json
├── scripts/
│   ├── compile-chip.sh              ← clang invocation Linux/macOS
│   ├── compile-chip.ps1             ← clang invocation Windows
│   ├── compile-all.sh               ← compila todos los ejemplos
│   └── setup-wasi-sdk.md            ← cómo instalar wasi-sdk
├── src/                             ← runtime y mirrors de Velxio
│   ├── ChipRuntime.js               ← loader WASM + host imports
│   ├── WasiShim.js                  ← WASI mínimo (fd_write, proc_exit)
│   ├── PinManager.js                ← espejo de Velxio
│   ├── I2CBus.js                    ← espejo del I2CBusManager
│   ├── AVRHarness.js                ← avr8js wrapper Velxio-fiel
│   ├── intelHex.js                  ← parser
│   └── index.js
├── fixtures/                        ← .wasm compilados + .hex sketches
└── test/
    ├── js/                          ← tests que NO requieren clang
    │   ├── 01_pin_manager.test.js
    │   ├── 02_i2c_bus.test.js
    │   ├── 03_avr_harness.test.js
    │   └── 04_runtime_imports.test.js
    └── e2e/                         ← tests que requieren .wasm compilado
        ├── 05_chip_inverter.test.js
        └── 06_chip_eeprom_24c01.test.js

Quickstart

# 1. Instalar deps
cd test/test_custom_chips
npm install

# 2. (Solo para tests E2E) instalar wasi-sdk siguiendo scripts/setup-wasi-sdk.md

# 3. (Solo para tests E2E) compilar los ejemplos
npm run compile:examples

# 4. Correr tests
npm test            # todo
npm run test:js     # solo tests JS-only (no requieren wasi-sdk)
npm run test:e2e    # solo E2E con WASM

Los tests e2e/ se hacen it.skip automáticamente si el .wasm correspondiente no está en fixtures/. Eso permite correr la suite parcialmente sin tener wasi-sdk instalado.

Por qué un sandbox separado

Igual que test_circuit/ validó el solver SPICE antes de integrarlo, este sandbox valida el runtime de chips antes de tocar el frontend de Velxio. Cuando los tests pasen end-to-end, los archivos de src/ se portan al frontend (con tipado TS) e integran con el editor.

Estado actual

Ver ../autosearch/04_findings.md para el log corrido de qué funciona y qué falta.