diff --git a/bsp/src/bsp_nt26k.c b/bsp/src/bsp_nt26k.c
index 621a591..605bf69 100644
--- a/bsp/src/bsp_nt26k.c
+++ b/bsp/src/bsp_nt26k.c
@@ -1056,12 +1056,18 @@ int Handle_Config_Params(struct Nt26k_Ops *ops)
             {
                 if (BSP_Flash_Write_Info(recv_data, sizeof(sys_config_info) - 50) != 0)
                 {
-                    rt_uint16_t iot_upload_time = (uint16_t)Flash_Get_SysCfg(kIotUploadCycleId);
-                    unsigned long timeout       = iot_upload_time * 60 * RT_TICK_PER_SECOND;
-                    // rt_timer_stop(nt26k_timer);
+                    rt_uint32_t iot_upload_time = (uint16_t)Flash_Get_SysCfg(kIotUploadCycleId);
+                    rt_uint32_t timeout       = iot_upload_time * 60 * RT_TICK_PER_SECOND;
+                    if (iot_upload_time > 24 * 60 * 60 * RT_TICK_PER_SECOND)
+                    {
+                        timeout = 24 * 60 * 60 * RT_TICK_PER_SECOND;
+                        LOG_E("iot_upload_time > 24 * 60 * 60 * RT_TICK_PER_SECOND");
+                    }
+                    else
+                    {
+                        timeout = iot_upload_time * 60 * RT_TICK_PER_SECOND;
+                    }
                     rt_timer_control(nt26k_timer, RT_TIMER_CTRL_SET_TIME, (void *)&timeout); // 更新上报周期
-                    // rt_timer_control(nt26k_timer, RT_TIMER_CTRL_GET_TIME, &timeout);
-                    // LOG_D("timeout:%d", timeout/1000/60);
                     rt_timer_start(nt26k_timer);
                     LOG_D("上报周期由%dmin更新为%dmin", ((flash_info[5] << 8) | flash_info[6]), iot_upload_time);
                     if (ops->Resp(ops, DATA_SERIAL_NUM, CMD_TYPE_INSTRUCTION_REPLY, DEVICE_TYPE_NT26K, INSTRUCTION_DOWN_CONFIG_PARAMS, temp, RESPONSE_CODE_SUCCESS) == RT_EOK)