【VisionFive 2单板计算机试用体验】GPIO口点亮LED灯

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2025-6-30 07:31:21

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测试板卡GPIO口点亮LED灯。

一、搭建环境

1.1、文档

按照官方的应用文档搭建测试环境
GPIO点亮LED

1.2、在Debain系统上安装pip
root@starfive:~# apt-get install python3-pip

1.3、安装VisionFive.gpio包

1.3.1、安装依赖包

apt install libxml2-dev libxslt-dev
python3 -m pip install requests wget bs4

安装过程中遇到点问题

报错：error: externally-managed-environment

执行命令
apt install python3-requests python3-wget python3-bs4 -y

正常安装

1.3.2、运行安装脚本

下载最新的VisionFive.gpio

下载地址：VisionFive.gpio

该版本有三个下载链接

根据系统安装的python版本来选择，选择系统版本对应的python 3.11

执行下载命令：

wget https://files.pythonhosted.org/packages/2e/00/16326e8e01a268ce997b72e70240d7249a550222af82955d9b4a52f8a320/VisionFive.gpio-1.3.3-cp311-cp311-any.whl

修改文件名：
mv VisionFive.gpio-1.3.3-cp311-cp311-any.whl VisionFive.gpio-1.3.3-cp311-cp311-linux_riscv64.whl

安装
python3 -m pip install VisionFive.gpio-1.3.3-cp311-cp311-linux_riscv64.whl --break-system-packages

二、测试

找到测试代码的位置

2.1、查看VisionFive.gpio安装的目录
pip show VisionFive.gpio

进入目录

cd /usr/local/lib/python3.11/dist-packages/
cd VisionFive/sample-code/

找到led.py

2.2、修改测试代码

根据测试的硬件修改对应的端口

这里测试使用GPIO44端口，对用引脚号为40

修改led.py

"""
Please make sure the LED is connected to the correct pins.
The following table describes how to connect the LED to the 40-pin header.
-----------------------------------------
_______LED_________Pin Number_____Pin Name
    Positive          22          GPIO50
    Negative          6            GND
-----------------------------------------
"""

import VisionFive.gpio as GPIO
import time

led_pin = 40
# Set the gpio mode as 'BOARD'.
GPIO.setmode(GPIO.BOARD)
# Configure the direction of led_pin as output.
GPIO.setup(led_pin, GPIO.OUT)


def light(delay):
    # Configure the voltage level of led_pin as high.
    GPIO.output(led_pin, GPIO.HIGH)
    time.sleep(delay)
    # Configure the voltage level of led_pin as low.
    GPIO.output(led_pin, GPIO.LOW)
    time.sleep(delay)


if __name__ == "__main__":
    try:
        delay_s = input("Enter delay(seconds): ")
        delay = float(delay_s)

        while True:
            try:
                light(delay)
            except KeyboardInterrupt:
                break
    finally:
        GPIO.cleanup()