https://github.com/headblockhead/pico-pca9555

Library for the P/TCA9555 16-bit I2C-bus and SMBus I/O port with interrupt.
https://github.com/headblockhead/pico-pca9555

c-library pca9555 pico tca9555

Last synced: 24 days ago
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Library for the P/TCA9555 16-bit I2C-bus and SMBus I/O port with interrupt.

• Host: GitHub
• URL: https://github.com/headblockhead/pico-pca9555
• Owner: headblockhead
• Created: 2024-06-20T22:45:44.000Z (about 2 years ago)
• Default Branch: main
• Last Pushed: 2024-11-17T19:30:06.000Z (over 1 year ago)
• Last Synced: 2025-01-15T07:57:53.251Z (over 1 year ago)
• Topics: c-library, pca9555, pico, tca9555
• Language: C
• Homepage: https://www.nxp.com/docs/en/data-sheet/PCA9555.pdf
• Size: 16.6 KB
• Stars: 1
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

          
# pico_pca9555

![Nix Flake](https://img.shields.io/badge/NIX%20FLAKE-5277C3.svg?logo=NixOS&logoColor=white) [![xc compatible](https://xcfile.dev/badge.svg)](https://xcfile.dev)

A C library for controlling the PCA9555/TCA9555 I2C IO expander with the Raspberry Pi Pico.

## Development

This library uses [nix](https://nixos.org).

To develop, run the nix shell using `nix develop`. This library can also be build using `nix build`.

## Tasks

### build

Directory: ./build

Build a static archive library (`.a`).

```bash

cmake -DCMAKE_BUILD_TYPE=Release ..

make -j4

```

### build-dbg

Directory: ./build

Build the library with debug information.

```bash

cmake -DCMAKE_BUILD_TYPE=Debug .. 

make -j4

cp compile_commands.json ../ # Copies the autocomplete information for ccls.

```

### clean

Cleans the build directory for a fresh build.

```bash

rm -rf ./build

mkdir build

```