基于 OpenHarmony 的 Nexus_Geometry_Nano_Board 亮灯实验

mkdir ~/bincurl https://gitee.com/oschina/repo/raw/fork_flow/repo-py3 -o ~/bin/repochmod a+x ~/bin/repopip3 install -i https://repo.huaweicloud.com/repository/pypi/simple requests

vim ~/.bashrc #编辑环境变量#进入后按键盘i键进入输入模式，把下面这段复制粘贴到最后一行。export PATH=~/bin:$PATH #这行用于加在尾部#然后点击键盘左上角的Esc键后输入:wq回车就保存好了。source ~/.bashrc #应用变量（相当于刷新，会清空命令行）或者使用echo xxx >> ~/.bashrc也可以，比如说echo 'export PATH="~/bin:$PATH"' >> ~/.bashrcsource ~/.bashrc

apt update -yapt install git-lfs

cd ~/code #将命令行的路径移动到目标目录mkdir ws63_ohos #新建文件夹cd ~/code/ws63_ohos #命令的位置移动到这个目录下git config --global user.email “lengqinjie@lengqinjie.xyz”git config --global user.name “lengqinjie.#上面带user.email和user.name的为两行，一起复制粘贴为命令行，建议使用自己在gitcode的邮箱

repo init -u https://gitee.com/HiSpark/manifest.git -b OpenHarmony-v5.1.0-Release -m default-ws63-without-xts.xml --no-repo-verify

repo sync -c

repo forall -c 'git lfs pull'

./build/prebuilts_download.sh

vim ~/.bashrc#进入后按键盘i键进入输入模式，把下面这段复制粘贴到最后一行export PATH=/root/code/ws63_ohos/device/soc/hisilicon/ws63v100/sdk/tools/bin/compiler/riscv/cc_riscv32_musl_100/cc_riscv32_musl/bin:$PATH #这行用于加在尾部#然后点击键盘左上角的Esc键后输入:wq回车就保存好了。source ~/.bashrc #应用变量或者使用也可以达到相同效果的命令：echo 'export PATH="/root/code/ws63_ohos/device/soc/hisilicon/ws63v100/sdk/tools/bin/compiler/riscv/cc_riscv32_musl_100/cc_riscv32_musl/bin:$PATH"' >> ~/.bashrcsource ~/.bashrc重复问题，可以通过grep命令先判断一下：grep 'export PATH="/root/code/ws63_ohos/device/soc/hisilicon/ws63v100/sdk/tools/bin/compiler/riscv/cc_riscv32_musl_100/cc_riscv32_musl/bin:$PATH"' ~/.bashrc | sort | uniq -dbash脚本本身也可以支持if判断#!/bin/bash# 目标工具名称（假设为 "mytool"）TOOL_NAME="mytool"# 工具所在的绝对路径（替换为你的实际路径）TOOL_PATH="/opt/custom_tools/mytool/bin"echo "=== Step 1: 检查当前 PATH 是否包含 ${TOOL_PATH} ==="sleep 2 # 停顿以便阅读输出# 检查工具是否已在 PATH 中if command -v "$TOOL_NAME" &> /dev/null; thenecho "'${TOOL_NAME}' 已存在于 PATH 中！当前版本:""$TOOL_NAME" --version | head -n 1 # 显示版本号（假设支持 --version 参数）elseecho "未找到 '${TOOL_NAME}'，尝试添加到 PATH..."# 检查是否已手动添加过该路径（避免重复）if grep -qF "${TOOL_PATH}" ~/.bashrc; thenecho "错误：${TOOL_PATH} 已存在于 ~/.bashrc 但未生效！请检查配置。"exit 1fi# 追加路径到 .bashrc 并立即生效echo "export PATH=\"${TOOL_PATH}:\$PATH\"" >> ~/.bashrcecho "已将 ${TOOL_PATH} 添加到 ~/.bashrc"sleep 3 # 长时间停顿强调关键操作完成# 重新加载配置source ~/.bashrcecho "新 PATH 已加载，再次检查..."sleep 2# 最终验证if command -v "$TOOL_NAME" &> /dev/null; thenecho "成功！'${TOOL_NAME}' 现在可用：""$TOOL_NAME" --help # 显示帮助信息证明可用elseecho "失败！虽然添加了路径但仍无法找到 '${TOOL_NAME}'。请检查实际文件是否存在。"exit 1fifiecho

pip install build/hb

echo $PATH

apt update

apt install cmake

pip install pycparser

hb set （执行这个命令后通过键盘上下键选择到要编译的，然后按enter键选中）

hb build -f

#include <stdio.h> // 标准输入输出库#include <unistd.h> // 提供 sleep() 函数用于延时#include "cmsis_os2.h" // ARM Cortex-M 的 RTOS API 接口#include "ohos_init.h" // OpenHarmony的初始化接口#include "iot_gpio.h" // 物联网设备GPIO操作接口// 按照原理图，定义三色LED对应的GPIO引脚编号#define LED_R_PIN 10 // GPIO10#define LED_G_PIN 12 // GPIO12#define LED_B_PIN 13 // GPIO13void LedInit(void) {// 初始化GPIO，设置为输出IoTGpioInit(LED_R_PIN);IoTGpioSetDir(LED_R_PIN, IOT_GPIO_DIR_OUT);// 初始化GPIO，设置为输出IoTGpioInit(LED_G_PIN);IoTGpioSetDir(LED_G_PIN, IOT_GPIO_DIR_OUT);// 初始化GPIO，设置为输出IoTGpioInit(LED_B_PIN);IoTGpioSetDir(LED_B_PIN, IOT_GPIO_DIR_OUT);}void LightTricolorEntry(void) {LedInit(); // 初始化LED的GPIOwhile (1) { // 循环IoTGpioSetOutputVal(LED_R_PIN, 1); // 点亮sleep(1); // 延时IoTGpioSetOutputVal(LED_R_PIN, 0); // 关闭sleep(1); // 延时}}SYS_RUN(LightTricolorEntry);放入源码后如下：

static_library("AAA") {sources = [ "light_tricolor.c" ]include_dirs = ["//utils/native/lite/include","//kernel/liteos_m/kal","//base/iothardware/peripheral/interfaces/inner_api",]}

import("//build/lite/config/component/lite_component.gni")lite_component("app") {features = ["light_tricolor:AAA",]}

void mqtt_callback(MessageData *msg_data)    { size_t res_len = 0;        uint8_t *response_buf = NULL;        char topicname[45] = { "$crsp/" };        LOS_ASSERT(msg_data); printf("topic %.*s receive a message\r\n",    msg_data->topicName->lenstring.len, msg_data->topicName->lenstring.data); printf("message is %.*s\r\n", msg_data->message->payloadlen, msg_data->message->payload);    }    int mqtt_connect(void)    {        int rc = 0; NetworkInit(&n); NetworkConnect(&n, "xxxxxxxxxx.iot-mqtts.cn-north-4.myhuaweicloud.com", 1883); buf_size  = 4096+1024; onenet_mqtt_buf = (unsigned char *) malloc(buf_size); onenet_mqtt_readbuf = (unsigned char *) malloc(buf_size);        if (!(onenet_mqtt_buf && onenet_mqtt_readbuf))        { printf("No memory for MQTT client buffer!");            return -2;        } MQTTClientInit(&mq_client, &n, 1000, onenet_mqtt_buf, buf_size, onenet_mqtt_readbuf, buf_size); MQTTStartTask(&mq_client); data.keepAliveInterval = 30; data.cleansession = 1; data.clientID.cstring = "xxxxxxxxxxxxxxxxxxx_88888888_0_0_xxxxxxxxxx"; data.username.cstring = "xxxxxxxxxxxxxxxxxxx_88888888"; data.password.cstring = "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"; data.cleansession = 1; mq_client.defaultMessageHandler = mqtt_callback;        //连接服务器 rc = MQTTConnect(&mq_client, &data);        //订阅消息，设置回调函数 MQTTSubscribe(&mq_client, "porsche", 0, mqtt_callback); while(1)        { MQTTMessage message; message.qos = QOS1; message.retained = 0; message.payload = (void *)"huaweiyun"; message.payloadlen = strlen("huaweiyun");        //上报            if (MQTTPublish(&mq_client, "hi", &message) < 0)            { printf("MQTTPublish faild !\r\n");            } IoTGpioSetOutputVal(9, 0);      //9gpio 0 light on usleep(1000000);        }        return 0;       }