finnal

GetNet/src/GetNet.cpp

@@ -0,0 +1,229 @@
+/*
+本程序主要用于初始化网络配置,使4g模块可以正常上网
+*/
+
+#include <iostream>
+#include <fcntl.h>
+#include <unistd.h>
+#include <termios.h>
+#include <poll.h>
+#include <cstring>
+#include <thread>
+
+using namespace std;
+
+// 串口设备
+string Serious = "/dev/ttyUSB2";
+
+// 设置网络
+void SetNet();
+
+int main(int argc, char *argv[])
+{
+
+    this_thread::sleep_for(chrono::seconds(3));
+
+    SetNet();
+    return 0;
+}
+
+// 设置网络
+void SetNet()
+{
+    auto configure_serial = [](int fd) -> bool
+    {
+        struct termios options;
+        if (tcgetattr(fd, &options) != 0)
+            return false;
+
+        cfsetispeed(&options, B115200);
+        cfsetospeed(&options, B115200);
+
+        options.c_cflag |= (CLOCAL | CREAD);
+        options.c_cflag &= ~PARENB; // 无校验
+        options.c_cflag &= ~CSTOPB; // 1 位停止位
+        options.c_cflag &= ~CSIZE;
+        options.c_cflag |= CS8;      // 8 位数据位
+        options.c_cflag &= ~CRTSCTS; // 关闭硬件流控
+
+        options.c_iflag &= ~(IXON | IXOFF | IXANY); // 关闭软件流控
+        options.c_iflag &= ~(INLCR | ICRNL);
+
+        options.c_lflag &= ~(ICANON | ECHO | ECHOE | ISIG); // 原始模式
+        options.c_oflag &= ~OPOST;                          // 原始输出
+
+        options.c_cc[VMIN] = 0;   // 非阻塞读取
+        options.c_cc[VTIME] = 10; // 1.0s 读超时
+
+        if (tcsetattr(fd, TCSANOW, &options) != 0)
+            return false;
+        tcflush(fd, TCIOFLUSH);
+        return true;
+    };
+
+    auto write_all = [](int fd, const std::string &data) -> bool
+    {
+        const char *p = data.c_str();
+        size_t left = data.size();
+        while (left > 0)
+        {
+            ssize_t n = write(fd, p, left);
+            if (n < 0)
+            {
+                if (errno == EINTR)
+                    continue;
+                return false;
+            }
+            left -= static_cast<size_t>(n);
+            p += n;
+        }
+        return true;
+    };
+
+    auto send_at = [&](int fd, const std::string &cmd, std::string &resp, int timeout_ms = 3000) -> bool
+    {
+        std::string line = cmd + "\r\n";
+        if (!write_all(fd, line))
+            return false;
+
+        resp.clear();
+        char buf[256];
+        int elapsed = 0;
+        while (elapsed < timeout_ms)
+        {
+            struct pollfd pfd{fd, POLLIN, 0};
+            int pr = poll(&pfd, 1, 200);
+            if (pr > 0 && (pfd.revents & POLLIN))
+            {
+                ssize_t n = read(fd, buf, sizeof(buf));
+                if (n > 0)
+                {
+                    resp.append(buf, buf + n);
+                    if (resp.find("\r\nOK\r\n") != std::string::npos ||
+                        resp.find("\nOK\n") != std::string::npos ||
+                        resp.find("OK") != std::string::npos)
+                        return true;
+                    if (resp.find("ERROR") != std::string::npos)
+                        return false;
+                }
+            }
+            elapsed += 200;
+        }
+        return false; // 超时
+    };
+
+    int fd = open(Serious.c_str(), O_RDWR | O_NOCTTY | O_NONBLOCK);
+    if (fd < 0)
+    {
+        std::cerr << "无法打开串口: " << Serious << "\n";
+        return;
+    }
+    // 设为阻塞
+    int flags = fcntl(fd, F_GETFL, 0);
+    fcntl(fd, F_SETFL, flags & ~O_NONBLOCK);
+
+    if (!configure_serial(fd))
+    {
+        std::cerr << "串口参数配置失败\n";
+        close(fd);
+        return;
+    }
+
+    std::string resp;
+    // 0) 连续握手，确保 AT 可用（最多 10 次）
+    {
+        bool ok = false;
+        for (int i = 1; i <= 10; ++i)
+        {
+            if (send_at(fd, "AT", resp, 500))
+            {
+                ok = true;
+                break;
+            }
+            usleep(500 * 1000);
+        }
+        if (!ok)
+        {
+            std::cerr << "AT 握手失败，模块未响应\n";
+            close(fd);
+            return;
+        }
+    }
+
+    // 1) 打开功能
+    if (!send_at(fd, "AT+CFUN=1", resp))
+    {
+        std::cerr << "AT+CFUN=1 失败: " << resp << "\n";
+    }
+    else
+    {
+        std::cout << "AT+CFUN=1 OK\n";
+    }
+
+    // 1.1) 等 SIM 就绪（AT+CPIN? 返回 READY，最多 30 秒）
+    {
+        bool ready = false;
+        for (int i = 0; i < 60; ++i)
+        {
+            if (send_at(fd, "AT+CPIN?", resp, 500) && resp.find("READY") != std::string::npos)
+            {
+                ready = true;
+                break;
+            }
+            usleep(500 * 1000);
+        }
+        if (!ready)
+            std::cerr << "SIM 未就绪，后续可能失败\n";
+    }
+
+    // 2) 设置 PDP 上下文：APN = ipn（请按运营商实际 APN 调整）
+    if (!send_at(fd, "AT+CGDCONT=1,\"IP\",\"ipn\"", resp))
+    {
+        std::cerr << "AT+CGDCONT 设置失败: " << resp << "\n";
+    }
+    else
+    {
+        std::cout << "AT+CGDCONT OK\n";
+    }
+
+    // 2.1) 等驻网（AT+CEREG? 返回 ,1 或 ,5，最多 60 秒）
+    {
+        auto registered = [](const std::string &s)
+        { return s.find(",1") != std::string::npos || s.find(",5") != std::string::npos; };
+        bool ok = false;
+        for (int i = 0; i < 60; ++i)
+        {
+            if (send_at(fd, "AT+CEREG?", resp, 500) && registered(resp))
+            {
+                ok = true;
+                break;
+            }
+            usleep(1000 * 1000);
+        }
+        if (!ok)
+            std::cerr << "未驻网，继续尝试拨号但成功率较低\n";
+    }
+
+    // 3) 打开网卡/拨号（Quectel 私有指令示例）- 失败重试 5 次
+    {
+        bool ok = false;
+        for (int attempt = 1; attempt <= 5; ++attempt)
+        {
+            resp.clear();
+            if (send_at(fd, "AT+QNETDEVCTL=1,1,1", resp))
+            {
+                std::cout << "AT+QNETDEVCTL OK (attempt " << attempt << ")\n";
+                ok = true;
+                break;
+            }
+            std::cerr << "AT+QNETDEVCTL 失败 (attempt " << attempt << "/5): " << resp << "\n";
+            usleep(1000 * 1000); // 1s 间隔
+        }
+        if (!ok)
+        {
+            std::cerr << "AT+QNETDEVCTL 连续 5 次失败，退出本步骤\n";
+        }
+    }
+
+    close(fd);
+}

GetNet/src/makefile

@@ -0,0 +1,8 @@
+all:SetNet
+
+SetNet:GetNet.cpp
+	g++ -g -o setNet GetNet.cpp
+	mv ./setNet ../bin/
+
+clean:
+	rm -rf ../bin/*