包简介

An object-oriented wrapper to the spidev Linux Kernel driver

README 文档

README

The SPI PHP Extension provides an object-oriented wrapper to the spidev Linux Kernel driver that gives users the ability to write code that interacts with external hardware using the SPI protocol.

Requirements

PHP >= 8.0 (either NTS or ZTS version);

Note: if you are using this extension on Raspbian or Raspberry Pi OS, the user executing the script must belong to the spi group or you may run into "Permission denied" errors.

On Raspbian or Raspberry Pi OS:

PHP 8.0:

sudo apt install php8.0-cli php8.0-dev php8.0-phpdbg

PHP 8.1:

sudo apt install php8.1-cli php8.1-dev php8.1-phpdbg

Building

phpize
./configure
make
make test

SPI Modes

Mode	Constant	Description
00	SPI\MODE_0	Clock idle low, data valid at beginning of pulse (low to high)
01	SPI\MODE_1	Clock idle low, data valid at end of pulse (high to low)
10	SPI\MODE_2	Clock idle high, data valid at beginning of pulse (high to low)
11	SPI\MODE_3	Clock idle high, data valid at end of pulse (low to high)

Stubs

After changing any of the stubs, the main stub file must be updated by running the command below.

php stubs/update-main-stup.php

Once the stub is updated, the regular build process can be executed.

Note: The main stub file (phpspi.stub.php) is a generated file, edit the files on the stubs folder instead.

Constants

All namespace defined constants can be seen in the Constants.php stub.

Classes

Class	Description
SPI\Bus	Represents a SPI Bus.
SPI\Exception	Base exception.

Resources

Alternatives

Other Languages

License

This library is licensed under the PHP License.

embedded-php/spi 适用场景与选型建议

embedded-php/spi 是一款基于 C 开发的 Composer 扩展包，目前已累计 1 次下载、GitHub Stars 达 4，最近一次更新时间为 2024 年 12 月 24 日，在 PHP 生态内属于活跃度较高的组件。

我们在过去多个企业项目中使用过 embedded-php/spi 或与其功能相近的方案，如果你在选型或落地过程中遇到问题，例如 版本兼容、二次改造、私有化封装、与内部系统对接、生产 BUG 排查，欢迎联系我们协助评估。

围绕 embedded-php/spi 我们能提供哪些服务？

定制开发 / 二次开发

基于 embedded-php/spi 在你已有业务上做功能扩展、字段裁剪、UI 适配、与内部账号 / 权限 / 日志系统的深度对接。

BUG 修复 & 性能优化

线上偶发问题、内存泄漏、慢查询、并发异常等排查修复；针对高流量场景做缓存、队列、索引层面的调优。

项目外包 & 长期维护

承接完整的项目从需求 → 设计 → 开发 → 上线 → 长期运维；也可按月提供技术保姆服务。

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embedded-php/spi

包简介