diff --git a/source/ReadMe.txt b/source/ReadMe.txt
index 67ceff7..ad812da 100644
--- a/source/ReadMe.txt
+++ b/source/ReadMe.txt
@@ -277,4 +277,5 @@
     地址线使用下拉，app中也使用断言，线程栈默认填充0x23+pro，malloc失败直接进断言
 2023.12.4
     只在初次进入检测命令时清除检测结果，检测结束时获取检测结果加入有效性判断
+    添加广播命令的解析和回复指令
 
diff --git a/source/codec/codec.c b/source/codec/codec.c
index 2d0ae8f..1b72130 100644
--- a/source/codec/codec.c
+++ b/source/codec/codec.c
@@ -247,13 +247,24 @@ array_def *protm_decode(protu_def *p,array_def *data)
     str_set(p->str_err,"crc check err.");
   }
   p->cmd=arr_get(data,6);
+  arr_delete(r);
+  r=arr_mid(data,9,len-10);
   if(dst==0x1f){
-    p->silent=1;
+    // 广播命令需判断额外字节
+    int self_addr=elec_local_addr();
+    int dst_addrs=arr_get(r,0)|(arr_get(r,1)<<8)|(arr_get(r,2)<<16);
+    if((dst_addrs&(1<<(self_addr-1)))!=0){
+      p->silent=1;
+      arr_remove(r,0,3);
+    }else{
+      arr_delete(r);
+      r=arr_creat();
+      str_set(p->str_err,"bordcast without this.");
+    }
   }else{
     p->silent=0;
   }
-  arr_delete(r);
-  return arr_mid(data,9,len-10);
+  return r;
 }
 
 
@@ -262,18 +273,23 @@ array_def *protm_encode(protu_def *p,array_def *data)
 {
   array_def *t=arr_creat();
   param_check(t);
-  uint16_t len=arr_length(data)+10;
-  arr_append(t,'Y');
-  arr_append(t,'e');
-  arr_append(t,len&0xff);
-  arr_append(t,len>>8);
-  arr_append(t,elec_local_addr());// 源地址
-  arr_append(t,0);// 目标地址
-  arr_append(t,p->cmd);// 命令码
-  arr_append(t,p->cmd_no&0xff);
-  arr_append(t,p->cmd_no>>8);
-  arr_appends_from(t,data);
-  arr_append(t,crc_crc8(arr_data(t),arr_length(t)));
+  if(p->silent==0){
+    uint16_t len=arr_length(data)+10;
+    arr_append(t,'Y');
+    arr_append(t,'e');
+    arr_append(t,len&0xff);
+    arr_append(t,len>>8);
+    arr_append(t,elec_local_addr());// 源地址
+    arr_append(t,0);// 目标地址
+    arr_append(t,p->cmd);// 命令码
+    arr_append(t,p->cmd_no&0xff);
+    arr_append(t,p->cmd_no>>8);
+    arr_appends_from(t,data);
+    arr_append(t,crc_crc8(arr_data(t),arr_length(t)));
+  }else{
+    // 广播命令只需回复本机地址
+    arr_append(t,elec_local_addr());
+  }
   return t;
 }
 
diff --git a/source/main/compiler_info.h b/source/main/compiler_info.h
index 843572d..fe1e720 100644
--- a/source/main/compiler_info.h
+++ b/source/main/compiler_info.h
@@ -6,7 +6,7 @@
 
 
 
-#define BUILD_DATE  "2023-12-04 10:52:51"
+#define BUILD_DATE  "2023-12-04 17:01:27"
 #define SOFT_VERSION  "2.07"
 
 
diff --git a/source/task/prot_uc.c b/source/task/prot_uc.c
index 85bb2d5..120264d 100644
--- a/source/task/prot_uc.c
+++ b/source/task/prot_uc.c
@@ -280,8 +280,8 @@ void protu_reply_call(protu_def *p,array_def *data)
 {
   param_check(p);
   array_def *t=0;
-  if(p->silent)
-    return;
+//  if(p->silent)
+//    return;
   if(p->codec)
     t=p->codec->encode(p,data);
   // DBG_LOG("send encode:%s",arr_string(t));
@@ -296,8 +296,8 @@ void protu_reply_call(protu_def *p,array_def *data)
 void protu_send_call(protu_def *p,uint8_t cmd,array_def *data)
 {
   array_def *t=0;
-  if(p->silent)
-    return;
+//  if(p->silent)
+//    return;
   if(cmd!=0){
     p->cmd=cmd;
     // 上报数据不增加流水号 2023.7.14