1204

main.c

@@ -14,6 +14,9 @@ void Delay_Ms()
 }
 
 
+
+
+
 void *serial_usart1(void *arg)
 { 
 
@@ -22,6 +25,14 @@ void *serial_usart1(void *arg)
     return NULL; 
 }
 
+void *serial_usart2(void *arg)
+{ 
+
+    serial_Receive_2();
+    
+    return NULL; 
+}
+
 void *AppExit(void *arg)
 { 
     unsigned char bufpwm1[3]={0x01,0x01,0x00};
@@ -57,19 +68,6 @@ int main(int argc, char *argv[]) {
     mosquitto_lib_init();
     mosq = mosquitto_new(CLIENT_ID, true, NULL);
     init_mqtt(mosq);
-    // 创建 mosquitto 客户端
-    
-    //if (!mosq) {
-     //   fprintf(stderr, "Failed to create mosquitto client\n");
-    //    return EXIT_FAILURE;
-   // }
-
-    // 设置连接和消息回调
-    //mosquitto_connect_callback_set(mosq, on_connect);
-   // mosquitto_message_callback_set(mosq, on_message);
-
-    // 设置用户名和密码
-    //mosquitto_username_pw_set(mosq, USERNAME, PASSWORD);
 
     // 连接到 MQTT 代理
     rc = mosquitto_connect(mosq, BROKER_ADDRESS, BROKER_PORT, 60);
@@ -83,8 +81,8 @@ int main(int argc, char *argv[]) {
    send_mqtt_message(mosq, TOPIC,ip_address);//将ip发送给mqtt
  
 
-    pthread_t thread[2];
-
+    pthread_t thread[3];//线程标识符
+    
     if(pthread_create(&thread[0],NULL,serial_usart1,NULL)!=0)
     {
         perror("Failed to create thread 1");
@@ -96,8 +94,15 @@ int main(int argc, char *argv[]) {
         perror("Failed to create thread 2");
         return 1;
     }
+
+    if(pthread_create(&thread[2],NULL,serial_usart2,NULL)!=0)
+    {
+        perror("Failed to create thread 2");
+        return 1;
+    }
+    
    
-  // 开始循环，处理网络流量
+   //开始循环，处理网络流量
     //mosquitto_loop_start(mosq);//后台处理
     mosquitto_loop_forever(mosq, -1, 1000); // -1 表示无限等待，1 表示处理消息的最大数量
 
@@ -110,5 +115,8 @@ int main(int argc, char *argv[]) {
     // 等待线程2结束
     pthread_join(thread[1], NULL);
 
+    // 等待线程3结束
+    pthread_join(thread[2], NULL);
+
     return EXIT_SUCCESS;
 }
\ No newline at end of file

mqtt.h

@@ -13,7 +13,7 @@
 #define BROKER_ADDRESS "119.45.167.177"
 #define BROKER_PORT 1883
 #define CLIENT_ID "device1car/carer5434"
-#define TOPIC "devices/controcar01"
+#define TOPIC "devices/controcar02"
 #define USERNAME "admin"    // 替换为你的用户名
 #define PASSWORD "admin"       // 替换为你的密码
 

serial.c

 #include "serial.h"
 #include "mqtt.h"
 
-int fd;
+int fd, fds;
+
+int init_serials(const char *port, int baudrate)
+{
+    int fd = open(port, O_RDWR | O_NOCTTY | O_NDELAY);
+    if (fd == -1) {
+        perror("open serial port");
+        return -1;
+    }
+
+    struct termios options;
+    tcgetattr(fd, &options);
+
+    // 设置波特率
+    cfsetispeed(&options, B9600);
+    cfsetospeed(&options, B9600);
+
+    // 配置串口
+    options.c_cflag &= ~PARENB; // 无校验
+    options.c_cflag &= ~CSTOPB; // 1停止位
+    options.c_cflag &= ~CSIZE;  // 清除数据位设置
+    options.c_cflag |= CS8;     // 8数据位
+    options.c_cflag |= CLOCAL | CREAD; // 忽略调制解调器状态，开启接收器
+
+    options.c_lflag &= ~(ICANON | ECHO | ECHOE | ISIG); // 原始模式
+    options.c_iflag &= ~(IXON | IXOFF | IXANY);         // 禁用流控
+    options.c_oflag &= ~OPOST;                         // 原始输出
+
+    tcsetattr(fd, TCSANOW, &options);
+    return fd;
+}
 
 int init_serial(const char *port, int baudrate) {
     int fd = open(port, O_RDWR | O_NOCTTY | O_NDELAY);
@@ -41,6 +71,28 @@ void Delay_Ms1()
 }
 
 
+void serial_Receive_2() {
+     char buffer[256];
+    //mosq = mosquitto_new(CLIENT_ID, true, NULL);
+    while (1) { 
+        int bytes_read = read(fds, buffer, sizeof(buffer)-1);
+        if (bytes_read > 0) {
+             //printf("Received chatdate: %s\n", buffer);
+            buffer[bytes_read] = '\0';
+            printf("Received chatdate: %s\n", buffer);
+            //int receivedNumber = atoi(buffer);
+            //printf("Received intdate: %d\n", receivedNumber);
+            //mosquitto_publish(mosq, NULL, TOPIC, strlen(buffer), buffer, 0, false);
+            //printf("%s\n",mosq);
+                                                
+        }
+        
+        
+    }
+    close(fds);
+    //free(buffer);
+}
+
 void serial_Receive() {
     unsigned char buffer[256];
     //mosq = mosquitto_new(CLIENT_ID, true, NULL);
@@ -110,7 +162,9 @@ void serial_Write(unsigned char *buf)
 int serial_Init()
 {
     fd = init_serial(SERIAL_PORT, 9600);
+    fds = init_serials(SERIAL_PORT_2, 9600);
     if (fd == -1) return -1;
+    if (fds == -1) return -1;
     printf("Serial communication started...\n");
     
 }

serial.h

@@ -11,9 +11,13 @@
 
 #define SERIAL_PORT "/dev/ttyS3" // 根据实际设备修改
 
+#define SERIAL_PORT_2 "/dev/ttyS7" // 根据实际设备修改
+
 int serial_Init();
 void serial_Receive();
+void serial_Receive_2(); 
 void serial_Write(unsigned char *buf);
 //extern int fd;
 int init_serial(const char *port, int baudrate); 
+int init_serials(const char *port, int baudrate);
 #endif
\ No newline at end of file