refactor(vd960DBN): MQTT 重构,对标 DBN101GA 参考项目
net_srv.c 改动: - WCHNET_HandleSockInt IoT 分支:SINT_STAT_CONNECT 直接调 mqtt_connect(), SINT_STAT_RECV 调 mqtt_data_manage() — 复用已有的 SocketId_TCP/mqttBuf/mqttData - 新增 mqtt_data_manage(): 处理 CONNACK/SUBACK/PUBLISH/PINGRESP - 新增 poll_mqtt(): 心跳 PINGREQ (~9s) peripheral_main.c 改动: - IoT 模式下 poll_mqtt() 替代 iot_mqtt_poll() 对标 DBN101GA 的关键差异: - net_srv.c 已有完整 mqtt_connect/mqtt_publish/MQTT_Subscribe/MQTT_Pingreq - SocketId_TCP 由 WCHNET_CreateTcpMqttSocket 创建,不再自建 socket - SINT_STAT_CONNECT 直接发 MQTT CONNECT,不延迟
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@@ -271,7 +271,7 @@ void Main_Circulation(void)
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if (g_sub_code_enable.iot_enable) {
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iot_mqtt_publish_sensor(); // Push 0xC0 sensor data to MQTT broker
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iot_mqtt_poll(); // IoT MQTT state machine + heartbeat
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poll_mqtt(); // MQTT PINGREQ heartbeat (in net_srv.c)
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} else {
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tcp_json_push_sensor(); // Push 0xC0 sensor data to TCP JSON client
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tcp_json_poll();
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