From a9c36e4c9d6b9c5af733b5378953797d42d5d3dd Mon Sep 17 00:00:00 2001
From: wangfq <wangfq@collectpublish.net>
Date: Thu, 23 Jul 2026 13:43:13 +0800
Subject: [PATCH] =?UTF-8?q?fix(vd960DBN):=20=E5=BF=83=E8=B7=B3=20msg=5Fid?=
 =?UTF-8?q?=20=E5=8F=8C=E9=80=92=E5=A2=9E=E4=BF=AE=E5=A4=8D=20+=20%d?=
 =?UTF-8?q?=E2=86=92%lu?=
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root cause: iot_send_heartbeat 先 ++g_iot_msg_id(JSON) 再
  iot_mqtt_publish 内部 ++g_iot_msg_id(MQTT pktid) → 跳号

fix: 心跳改用 g_iot_msg_id + 1 (与其他发布对齐)
---
 vd960DBN/BLE/OnlyUpdateApp_Peripheral/APP/iot_mqtt_srv.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/vd960DBN/BLE/OnlyUpdateApp_Peripheral/APP/iot_mqtt_srv.c b/vd960DBN/BLE/OnlyUpdateApp_Peripheral/APP/iot_mqtt_srv.c
index f03016d..a083297 100644
--- a/vd960DBN/BLE/OnlyUpdateApp_Peripheral/APP/iot_mqtt_srv.c
+++ b/vd960DBN/BLE/OnlyUpdateApp_Peripheral/APP/iot_mqtt_srv.c
@@ -817,11 +817,11 @@ static void iot_send_heartbeat(void) {
     }
 
     snprintf(payload, sizeof(payload),
-        "{\"msg_id\":%d,\"cmd\":\"heartbeat\","
+        "{\"msg_id\":%lu,\"cmd\":\"heartbeat\","
         "\"ts\":%lu,\"data\":{"
         "\"uptime\":%lu,\"loop_status\":[%s,%s,%s,%s],"
         "\"net_status\":true,\"iot_status\":true}}",
-        ++g_iot_msg_id, dev_time_now(),
+        (unsigned long)(g_iot_msg_id + 1), dev_time_now(),
         mstick() / 1000,
         loop_ok[0] ? "true" : "false", loop_ok[1] ? "true" : "false",
         loop_ok[2] ? "true" : "false", loop_ok[3] ? "true" : "false");