diff --git a/APP_Framework/Applications/app_test/test_socket.c b/APP_Framework/Applications/app_test/test_socket.c
index 5e77b9d3b..2d4d10be9 100644
--- a/APP_Framework/Applications/app_test/test_socket.c
+++ b/APP_Framework/Applications/app_test/test_socket.c
@@ -335,10 +335,22 @@ void TestSocket(int argc, char* argv[])
     if (mode == IPERF_MODE_SERVER) {
         printf("[%s] Running iperf server at port %d.\n", __func__, iperf_param.port);
 
-        PrivTaskCreate(&thd, NULL, TestIperfServer, (void*)&iperf_param);
+#ifdef ADD_XIZI_FEATURES
+        char task_name[] = "test_iperf_server";
+        pthread_args_t args;
+        args.pthread_name = task_name;
+        args.arg = (void *)&iperf_param;
+        PrivTaskCreate(&thd, NULL, TestIperfServer, (void*)&args);
+#endif
     } else if (mode == IPERF_MODE_CLIENT) {
         printf("[%s] Running iperf client to server at %s:%d.\n", __func__, iperf_param.host, iperf_param.port);
-        PrivTaskCreate(&thd, NULL, TestIperfClient, (void*)&iperf_param);
+#ifdef ADD_XIZI_FEATURES
+        char task_name[] = "test_iperf_client";
+        pthread_args_t args;
+        args.pthread_name = task_name;
+        args.arg = (void *)&iperf_param;
+        PrivTaskCreate(&thd, NULL, TestIperfClient, (void*)&args);
+#endif
     }
 
     PrivTaskStartup(&thd);
diff --git a/APP_Framework/Framework/connection/adapter_agent.c b/APP_Framework/Framework/connection/adapter_agent.c
index c54caf946..353beab17 100755
--- a/APP_Framework/Framework/connection/adapter_agent.c
+++ b/APP_Framework/Framework/connection/adapter_agent.c
@@ -549,13 +549,19 @@ static int ATAgentInit(ATAgentType agent)
     attr.priority = 18;
     attr.stacksize = 8192;
 
+    PrivTaskCreate(&agent->at_handler, &attr, ATAgentReceiveProcess, agent);
 #else
     pthread_attr_t attr;
     attr.schedparam.sched_priority = 25;
     attr.stacksize = 4096;
-#endif
 
-    PrivTaskCreate(&agent->at_handler, &attr, ATAgentReceiveProcess, agent);
+    char task_name[] = "at_agent";
+    pthread_args_t args;
+    args.pthread_name = task_name;
+    args.arg = (void *)agent;
+
+    PrivTaskCreate(&agent->at_handler, &attr, ATAgentReceiveProcess, (void *)&args);
+#endif
 
     return result;
 
diff --git a/APP_Framework/Framework/connection/lora/adapter_lora.c b/APP_Framework/Framework/connection/lora/adapter_lora.c
index 6133e52cc..490d1f28e 100644
--- a/APP_Framework/Framework/connection/lora/adapter_lora.c
+++ b/APP_Framework/Framework/connection/lora/adapter_lora.c
@@ -848,8 +848,10 @@ static int AdapterLoraRegister(struct Adapter *adapter)
     ret = AdapterDeviceRegister(adapter);
     if (ret < 0) {
         printf("Adapter4G register error\n");
+#ifdef AS_LORA_GATEWAY_ROLE
         if (lora_gateway)
             PrivFree(lora_gateway);
+#endif
         if (lora_client)
             PrivFree(lora_client);
 
@@ -952,22 +954,32 @@ int AdapterLoraTest(void)
     pthread_attr_t lora_gateway_attr = PTHREAD_ATTR_INITIALIZER;
     lora_gateway_attr.priority = 20;
     lora_gateway_attr.stacksize = 2048;
+    PrivTaskCreate(&lora_recv_data_task, &lora_gateway_attr, &LoraReceiveTask, (void *)adapter);
 #else
     pthread_attr_t lora_gateway_attr;
     lora_gateway_attr.schedparam.sched_priority = 20;
     lora_gateway_attr.stacksize = 2048;
+
+    char task_name_1[] = "adapter_lora_recv";
+    pthread_args_t args;
+    args.pthread_name = task_name_1;
+    args.arg = (void *)adapter;
+    PrivTaskCreate(&lora_recv_data_task, &lora_gateway_attr, &LoraReceiveTask, (void *)&args);
 #endif
 
-    PrivTaskCreate(&lora_recv_data_task, &lora_gateway_attr, &LoraReceiveTask, (void *)adapter);
     PrivTaskStartup(&lora_recv_data_task);
 
 #ifdef ADD_NUTTX_FEATURES
     lora_gateway_attr.priority = 20;
+    PrivTaskCreate(&lora_gateway_task, &lora_gateway_attr, &LoraGatewayTask, (void *)adapter);
 #else   
     lora_gateway_attr.schedparam.sched_priority = 20;
+    char task_name_2[] = "adapter_lora_gateway";
+    args.pthread_name = task_name_2;
+    args.arg = (void *)adapter;
+    PrivTaskCreate(&lora_recv_data_task, &lora_gateway_attr, &LoraReceiveTask, (void *)&args);
 #endif
 
-    PrivTaskCreate(&lora_gateway_task, &lora_gateway_attr, &LoraGatewayTask, (void *)adapter);
     PrivTaskStartup(&lora_gateway_task);
 
 #else //AS_LORA_CLIENT_ROLE
@@ -975,22 +987,34 @@ int AdapterLoraTest(void)
     pthread_attr_t lora_client_attr = PTHREAD_ATTR_INITIALIZER;
     lora_client_attr.priority = 20;
     lora_client_attr.stacksize = 2048;
+
+    PrivTaskCreate(&lora_recv_data_task, &lora_client_attr, &LoraReceiveTask, (void *)adapter);
 #else
     pthread_attr_t lora_client_attr;
     lora_client_attr.schedparam.sched_priority = 20;
     lora_client_attr.stacksize = 2048;
+
+    char task_name_1[] = "adapter_lora_recv";
+    pthread_args_t args;
+    args.pthread_name = task_name_1;
+    args.arg = (void *)adapter;
+    PrivTaskCreate(&lora_recv_data_task, &lora_client_attr, &LoraReceiveTask, (void *)&args);
 #endif
-    PrivTaskCreate(&lora_recv_data_task, &lora_client_attr, &LoraReceiveTask, (void *)adapter);
+
     PrivTaskStartup(&lora_recv_data_task);
 
 #ifdef ADD_NUTTX_FEATURES
     lora_client_attr.priority = 20;
+    PrivTaskCreate(&lora_client_data_task, &lora_client_attr, &LoraClientDataTask, (void *)adapter);
 #else   
     lora_client_attr.schedparam.sched_priority = 20;
+    char task_name_2[] = "adapter_lora_client";
+    args.pthread_name = task_name_2;
+    args.arg = (void *)adapter;
+    PrivTaskCreate(&lora_client_data_task, &lora_client_attr, &LoraClientDataTask, (void *)&args);
 #endif
 
     //create lora client task
-    PrivTaskCreate(&lora_client_data_task, &lora_client_attr, &LoraClientDataTask, (void *)adapter);
     PrivTaskStartup(&lora_client_data_task);
 
 #endif
diff --git a/APP_Framework/Framework/control/shared/control_def.c b/APP_Framework/Framework/control/shared/control_def.c
index 4808b2423..79fb251fc 100644
--- a/APP_Framework/Framework/control/shared/control_def.c
+++ b/APP_Framework/Framework/control/shared/control_def.c
@@ -322,7 +322,12 @@ int ControlProtocolOpenDef(struct ControlProtocol *control_protocol)
     attr.schedparam.sched_priority = 19;
     attr.stacksize = 2048;
 
-    PrivTaskCreate(&recv_plc_data_task, &attr, &ReceivePlcDataTask, control_protocol);
+    char task_name[] = "control_recv_data";
+    pthread_args_t args;
+    args.pthread_name = task_name;
+    args.arg = (void *)control_protocol;
+
+    PrivTaskCreate(&recv_plc_data_task, &attr, &ReceivePlcDataTask, (void *)&args);
     PrivTaskStartup(&recv_plc_data_task);
 }
 
diff --git a/APP_Framework/Framework/sensor/pm/ps5308/ps5308.c b/APP_Framework/Framework/sensor/pm/ps5308/ps5308.c
index 615fc398e..e1c405c0d 100644
--- a/APP_Framework/Framework/sensor/pm/ps5308/ps5308.c
+++ b/APP_Framework/Framework/sensor/pm/ps5308/ps5308.c
@@ -80,7 +80,12 @@ static int SensorDeviceOpen(struct SensorDevice *sdev)
 
     result = PrivIoctl(sdev->fd, OPE_INT, &cfg);
 
-    PrivTaskCreate(&active_task_id, NULL, &ReadTask, sdev);
+    char task_name[] = "ps5308_recv_data";
+    pthread_args_t args;
+    args.pthread_name = task_name;
+    args.arg = (void *)sdev;
+
+    PrivTaskCreate(&active_task_id, NULL, &ReadTask, (void *)&args);
     PrivTaskStartup(&active_task_id);
 
     return result;
diff --git a/APP_Framework/Framework/sensor/voice/d124/d124.c b/APP_Framework/Framework/sensor/voice/d124/d124.c
index 232680c21..cdbf3895e 100644
--- a/APP_Framework/Framework/sensor/voice/d124/d124.c
+++ b/APP_Framework/Framework/sensor/voice/d124/d124.c
@@ -116,7 +116,12 @@ static int SensorDeviceOpen(struct SensorDevice *sdev)
     attr.schedparam.sched_priority = 20;
     attr.stacksize = 2048;
 
-    PrivTaskCreate(&active_task_id, &attr, &ReadTask, sdev);
+    char task_name[] = "d124_recv_data";
+    pthread_args_t args;
+    args.pthread_name = task_name;
+    args.arg = (void *)sdev;
+
+    PrivTaskCreate(&active_task_id, &attr, &ReadTask, (void *)&args);
     PrivTaskStartup(&active_task_id);
 
     return result;
diff --git a/APP_Framework/Framework/transform_layer/xizi/user_api/posix_support/include/pthread.h b/APP_Framework/Framework/transform_layer/xizi/user_api/posix_support/include/pthread.h
index d7feca1f0..d2c87ed84 100644
--- a/APP_Framework/Framework/transform_layer/xizi/user_api/posix_support/include/pthread.h
+++ b/APP_Framework/Framework/transform_layer/xizi/user_api/posix_support/include/pthread.h
@@ -72,6 +72,11 @@ extern "C" {
 
 typedef int   pid_t;
 // typedef int pthread_mutex_t ;
+typedef struct pthread_args
+{
+    void *arg;
+    const char *pthread_name;
+}pthread_args_t;
 
 /* scheduling algorithms */
 #define SCHED_OTHER		0
diff --git a/APP_Framework/Framework/transform_layer/xizi/user_api/posix_support/pthread.c b/APP_Framework/Framework/transform_layer/xizi/user_api/posix_support/pthread.c
index 76cca1b1a..a7652ee36 100644
--- a/APP_Framework/Framework/transform_layer/xizi/user_api/posix_support/pthread.c
+++ b/APP_Framework/Framework/transform_layer/xizi/user_api/posix_support/pthread.c
@@ -29,28 +29,40 @@
 int pthread_create(pthread_t *thread, const pthread_attr_t *attr,
                    void *(*start_routine)(void *), void *arg)
 {
-    int ret ;
-    int pid ;
+    int ret;
+    int pid;
     char task_name[32] = {0};
     static int utask_id = 0;
-    UtaskType task ;
+    UtaskType task;
+    pthread_args_t *pthread_args = (pthread_args_t *)arg;
 
     if (NULL == attr) {
         task.prio = KTASK_PRIORITY_MAX / 2;
-        task.stack_size = 4096 ;
+        task.stack_size = 4096;
     } else {
-        task.prio = attr->schedparam.sched_priority ;
-        task.stack_size = attr->stacksize ;
+        task.prio = attr->schedparam.sched_priority;
+        task.stack_size = attr->stacksize;
+    }
+
+    task.func_entry = start_routine;
+
+    if (NULL == pthread_args) {
+        task.func_param = NULL;
+        snprintf(task_name, sizeof(task_name) - 1, "utask%02d", utask_id++);
+    } else {
+        task.func_param = pthread_args->arg;
+        if (NULL == pthread_args->pthread_name) {
+            snprintf(task_name, sizeof(task_name) - 1, "utask%02d", utask_id++);
+        } else {
+            snprintf(task_name, sizeof(task_name) - 1, pthread_args->pthread_name);
+        } 
     }
 
-    task.func_entry = start_routine ;
-    task.func_param = arg;
-    snprintf(task_name, sizeof(task_name) - 1, "utask%02d",utask_id++);
     memcpy(task.name , task_name, sizeof(task_name) - 1);
 
     pid = UserTaskCreate(task);
     if (pid < 0)
-      return -1 ;
+        return -1;
     
     ret = UserTaskStartup(pid);
     *thread = (pthread_t)(long)pid;
diff --git a/APP_Framework/Framework/transform_layer/xizi/user_api/posix_support/timer.c b/APP_Framework/Framework/transform_layer/xizi/user_api/posix_support/timer.c
index e0d167504..e302c0a4a 100644
--- a/APP_Framework/Framework/transform_layer/xizi/user_api/posix_support/timer.c
+++ b/APP_Framework/Framework/transform_layer/xizi/user_api/posix_support/timer.c
@@ -25,8 +25,11 @@
 #include "include/semaphore.h"
 #include "include/pthread.h"
 
-static sem_t timer_sem;
-static pthread_t timer_task;
+#define TIMER_NUM 20
+
+static sem_t timer_sem[TIMER_NUM];
+static pthread_t timer_task[TIMER_NUM];
+static char timer_idx[TIMER_NUM];
 
 struct timer_func {
     union sigval value;
@@ -34,16 +37,17 @@ struct timer_func {
     void (* user_timer_function)(union sigval val);
 };
 
-struct timer_func g_timer_func;
+struct timer_func g_timer_func[TIMER_NUM];
 
 static void *timer_callback(void *args) 
 {
-    struct sigevent *evp = (struct sigevent *)args;
+    clockid_t clockid = *((clockid_t *)args);
 
     while (1) {
-        if (g_timer_func.user_timer_function != NULL) {
-            if (0 == sem_timedwait(&timer_sem, NULL)) {
-                g_timer_func.user_timer_function(g_timer_func.value);
+        if (g_timer_func[clockid].user_timer_function != NULL) {
+            if (0 == sem_timedwait(&(timer_sem[clockid]), NULL)) {
+                g_timer_func[clockid].value.sival_ptr = &clockid;
+                g_timer_func[clockid].user_timer_function(g_timer_func[clockid].value);
             }
         }
     }
@@ -68,30 +72,37 @@ int timer_create(clockid_t clockid, struct sigevent * evp, timer_t * timerid)
     memset(timer_name, 0, sizeof(timer_name));
     snprintf(timer_name, sizeof(timer_name), "timer_%ld", clockid);
 
-    sem_init(&timer_sem, 0, 0);
+    sem_init(&(timer_sem[clockid]), 0, 0);
 
-    g_timer_func.value = evp->sigev_value;
-    g_timer_func.user_timer_function = evp->sigev_notify_function;
-    g_timer_func.timer_flags = *(int *)(evp->sigev_notify_attributes);
+    g_timer_func[clockid].value = evp->sigev_value;
+    g_timer_func[clockid].user_timer_function = evp->sigev_notify_function;
+    g_timer_func[clockid].timer_flags = *(int *)(evp->sigev_notify_attributes);
 
     pthread_attr_t attr;
     attr.schedparam.sched_priority = 22;
     attr.stacksize = 2048;
 
-    pthread_create(&timer_task, &attr, &timer_callback, (void *)evp);
-    
-    timer_id = UserTimerCreate(timer_name, NULL, (void *)&timer_sem, 1000, g_timer_func.timer_flags);
+    pthread_args_t args;
+    args.pthread_name = timer_name;
+    args.arg = &clockid;
+
+    pthread_create(&(timer_task[clockid]), &attr, &timer_callback, (void *)&args);
+
+    timer_id = UserTimerCreate(timer_name, NULL, (void *)&(timer_sem[clockid]), clockid, g_timer_func[clockid].timer_flags);
     *timerid = timer_id;
     return timer_id;
 }
 
 int timer_delete(timer_t timerid)
 {
-    pthread_kill(timer_task, 0);
+    sem_t sem;
+    int timer_id = timerid;
+    pthread_kill(timer_task[timer_id], 0);
     
     UserTimerQuitRun(timerid);
 
-    sem_destroy(&timer_sem);
+    sem = timer_sem[timer_id];
+    sem_destroy(&sem);
 
     return 0;
 }
diff --git a/APP_Framework/lib/lorawan/README.md b/APP_Framework/lib/lorawan/README.md
index bff82e90b..f120f8af5 100644
--- a/APP_Framework/lib/lorawan/README.md
+++ b/APP_Framework/lib/lorawan/README.md
@@ -20,10 +20,14 @@ xiuos/APP_Framework/lib/lorawan
 
 ```
 # 下载代码
-# 进入APP_Framework/lib/lorawan目录下载更新子模块
+# 进入APP_Framework/lib/lorawan目录下载更新子模块，首先执行以下命令：
 git submodule init
+# 若需要使用lora_radio_driver子模块，执行以下命令：
 git submodule update APP_Framework/lib/lorawan/lora_radio_driver
+# 若需要使用lorawan_devicenode子模块，执行以下命令：
 git submodule update APP_Framework/lib/lorawan/lorawan_devicenode
+# 若需要使用lorawan_gateway_single_channel子模块，执行以下命令：
+git submodule update APP_Framework/lib/lorawan/lorawan_gateway_single_channel
 
 # 进入 APP_Framework/lib/lorawan/Kconfig 配置，增加子模块source路径，从而编译时可找到相应lib的配置
 menuconfig LIB_USING_LORAWAN_GATEWAY_SC
diff --git a/APP_Framework/lib/lorawan/lora_radio_driver b/APP_Framework/lib/lorawan/lora_radio_driver
index a94c007cb..0ced8f47f 160000
--- a/APP_Framework/lib/lorawan/lora_radio_driver
+++ b/APP_Framework/lib/lorawan/lora_radio_driver
@@ -1 +1 @@
-Subproject commit a94c007cb4ee726cc29b10626f8bbfc19c989b89
+Subproject commit 0ced8f47f86ea96a414479424d7f534426a818eb
diff --git a/APP_Framework/lib/lorawan/lorawan_devicenode b/APP_Framework/lib/lorawan/lorawan_devicenode
index 254754bc7..4c543f77f 160000
--- a/APP_Framework/lib/lorawan/lorawan_devicenode
+++ b/APP_Framework/lib/lorawan/lorawan_devicenode
@@ -1 +1 @@
-Subproject commit 254754bc7d06011cbec4655cd229c8ccfb95240b
+Subproject commit 4c543f77fcc639696939098a31145fdc1654f0f6
diff --git a/APP_Framework/lib/lorawan/lorawan_gateway_single_channel b/APP_Framework/lib/lorawan/lorawan_gateway_single_channel
index ac1c6516e..986318f68 160000
--- a/APP_Framework/lib/lorawan/lorawan_gateway_single_channel
+++ b/APP_Framework/lib/lorawan/lorawan_gateway_single_channel
@@ -1 +1 @@
-Subproject commit ac1c6516ec9b2998c0c50796a4e5a8b78781dc8c
+Subproject commit 986318f686df3e77eb3dc6cc690b3d1da3a32359
diff --git a/Ubiquitous/XiZi_IIoT/Makefile b/Ubiquitous/XiZi_IIoT/Makefile
index c41b4eda9..fda533036 100755
--- a/Ubiquitous/XiZi_IIoT/Makefile
+++ b/Ubiquitous/XiZi_IIoT/Makefile
@@ -5,7 +5,7 @@ MAKEFLAGS += --no-print-directory
 .PHONY:COMPILE_APP COMPILE_KERNEL
 
 
-riscv_support := kd233 maix-go hifive1-rev-B gapuino gd32vf103-rvstar rv32m1-vega aiit-riscv64-board xidatong-riscv64 edu-riscv64
+riscv_support := kd233 maix-go hifive1-rev-B gapuino gd32vf103-rvstar rv32m1-vega aiit-riscv64-board xidatong-riscv64 edu-riscv64 ch32v307vct6
 arm_support += stm32f407-st-discovery stm32f407zgt6 stm32f103-nano nuvoton-m2354 ok1052-c imxrt1176-sbc aiit-arm32-board xidatong-arm32 xiwangtong-arm32 edu-arm32
 emulator_support += hifive1-emulator k210-emulator cortex-m0-emulator cortex-m3-emulator cortex-m4-emulator
 support := $(riscv_support) $(arm_support) $(emulator_support) 
diff --git a/Ubiquitous/XiZi_IIoT/board/edu-arm32/config.mk b/Ubiquitous/XiZi_IIoT/board/edu-arm32/config.mk
index 222e6736c..bb44261da 100644
--- a/Ubiquitous/XiZi_IIoT/board/edu-arm32/config.mk
+++ b/Ubiquitous/XiZi_IIoT/board/edu-arm32/config.mk
@@ -1,6 +1,6 @@
 export CROSS_COMPILE ?=/usr/bin/arm-none-eabi-
 
-export CFLAGS := -mcpu=cortex-m4 -mthumb -mfpu=fpv4-sp-d16 -mfloat-abi=softfp -ffunction-sections -fdata-sections -Dgcc -O0 -fgnu89-inline -Wa,-mimplicit-it=thumb -Werror -Wformat -Wuninitialized
+export CFLAGS := -mcpu=cortex-m4 -mthumb -mfpu=fpv4-sp-d16 -mfloat-abi=softfp -ffunction-sections -fdata-sections -Dgcc -O0 -fgnu89-inline -Wa,-mimplicit-it=thumb -Werror -Wuninitialized
 # export CFLAGS := -mcpu=cortex-m4 -mthumb -mfpu=fpv4-sp-d16 -mfloat-abi=softfp -ffunction-sections -fdata-sections -Dgcc -O0 -gdwarf-2 -g -fgnu89-inline -Wa,-mimplicit-it=thumb -Werror
 export AFLAGS := -c -mcpu=cortex-m4 -mthumb -mfpu=fpv4-sp-d16 -mfloat-abi=softfp -ffunction-sections -fdata-sections -x assembler-with-cpp -Wa,-mimplicit-it=thumb  -gdwarf-2
 export LFLAGS := -mcpu=cortex-m4 -mthumb -mfpu=fpv4-sp-d16 -mfloat-abi=softfp -ffunction-sections -fdata-sections -Wl,--gc-sections,-Map=XiZi-edu-arm32.map,-cref,-u,Reset_Handler -T $(BSP_ROOT)/link.lds
diff --git a/Ubiquitous/XiZi_IIoT/kernel/kernel_service/xs_service.c b/Ubiquitous/XiZi_IIoT/kernel/kernel_service/xs_service.c
index d857f2cd5..5e0e30a2b 100644
--- a/Ubiquitous/XiZi_IIoT/kernel/kernel_service/xs_service.c
+++ b/Ubiquitous/XiZi_IIoT/kernel/kernel_service/xs_service.c
@@ -775,19 +775,24 @@ uint8_t UserGetTaskPriority(int32_t id)
 }
 
 #ifdef KERNEL_SOFTTIMER
-static int32 timer_sem;
+#define TIMER_NUM 20
+static int32 timer_sem[TIMER_NUM];
+static uint32_t timer_id[TIMER_NUM];
 static void UserTimerCallback(void *parameter)
 {
-   KSemaphoreAbandon(timer_sem);
+   uint32_t timer_id = *((uint32_t *)parameter);
+   KSemaphoreAbandon(timer_sem[timer_id]);
 }
 
 int32 UserTimerCreate(const char *name, void (*timeout)(void *parameter), void *parameter, uint32_t time, uint8_t trigger_mode)
 {
    int32 ret;
 
-   timer_sem = *((int *)parameter);
+   timer_id[time] = time;
+   timer_sem[time] = *((int *)parameter);
+
+   ret = KCreateTimer(name, UserTimerCallback, (void *)&(timer_id[time]), 1000, trigger_mode);
 
-   ret = KCreateTimer(name, UserTimerCallback, NONE, time, trigger_mode);
    return ret;
 }
 
diff --git a/Ubiquitous/XiZi_IIoT/kernel/thread/softtimer.c b/Ubiquitous/XiZi_IIoT/kernel/thread/softtimer.c
index f08f3d1cb..6ad68fd84 100644
--- a/Ubiquitous/XiZi_IIoT/kernel/thread/softtimer.c
+++ b/Ubiquitous/XiZi_IIoT/kernel/thread/softtimer.c
@@ -301,7 +301,9 @@ void CheckTimerList(void)
                 ((WorkQueueDoneType *)sys_workq->done)->WorkSubmit((WorkqueueType *)sys_workq->property, t->t_work, 0);
                 lock = CriticalAreaLock();
             } else {
-                KPrintf("sortlist run unactive timer(%s), quit this timer\n", t->name);
+                // KPrintf("sortlist run unactive timer(%s), current %d deadline %d quit this timer\n", 
+                //     t->name, current_tick, t->deadline_timeslice);
+                break;
             }
         }
         else
diff --git a/Ubiquitous/XiZi_IIoT/resources/serial/dev_serial.c b/Ubiquitous/XiZi_IIoT/resources/serial/dev_serial.c
index 156db4ebb..d490c017d 100644
--- a/Ubiquitous/XiZi_IIoT/resources/serial/dev_serial.c
+++ b/Ubiquitous/XiZi_IIoT/resources/serial/dev_serial.c
@@ -286,6 +286,7 @@ static inline int SerialDevDMARead(struct SerialHardwareDevice *serial_dev, stru
     x_size_t read_dma_length;
     x_size_t read_dma_size = SerialGetRxFifoLength(serial_dev);
     
+    lock = CriticalAreaLock();
     if (serial_cfg->data_cfg.serial_buffer_size) {
         if(read_length < (int)read_dma_size)
             read_dma_length = read_length;