diff --git a/tb/shinTest/gen_pkt.py b/tb/shinTest/gen_pkt.py
index e38ae93..9b5e989 100755
--- a/tb/shinTest/gen_pkt.py
+++ b/tb/shinTest/gen_pkt.py
@@ -26,6 +26,8 @@ if __name__ == '__main__':
     #add_tc_2_runlist(base.tc12())
     #add_tc_2_runlist(base.tc13())
     #add_tc_2_runlist(base.tc14())
+    add_tc_2_runlist(base.tc15())
+
     
     
     #add_tc_2_runlist(broadcast.tc1())
diff --git a/tb/shinTest/testcase/base.py b/tb/shinTest/testcase/base.py
index ba396ba..bd5a07e 100644
--- a/tb/shinTest/testcase/base.py
+++ b/tb/shinTest/testcase/base.py
@@ -1126,4 +1126,90 @@ def tc14():
     
     genPkt.gen("./generated/shin/%s.vh"%(gen_file_def, ), 1, True, gen_file_def_ap)
 
-    return gen_file_def
\ No newline at end of file
+    return gen_file_def
+
+
+def tc15():
+    genPkt = GenPkt()
+
+    gen_file_def = "base_tc15"
+    sm_idx = 0
+    tc_des = "读写SM缓冲区超过缓冲区的元素上限，期望结果，超出缓冲区的数据不被接收，工作计数不加。\\n" \
+           + "检查是否真的写入，子报文的状态。"
+    
+    #-------------------------------------------------------------------------
+    #>>>>>>普通数据包3
+    genPkt.clean()
+    genPkt.setPktType(0)
+    
+    #subPkt参数：索引、索引类型、地址、命令、长度、数据
+    genPkt.addSubPkt(0, 0, 0x0302, 0xe, 2, [32, 0])
+    genPkt.addSubPkt(0, 0, 0x0800, 0xe, 32, list(range(0, 32)))
+    genPkt.addSubPkt(0, 0, 0x0800, 0xe, 32, list(range(32, 64)))
+    genPkt.addSubPkt(0, 0, 0x0800, 0xe, 32, list(range(64, 96)))
+    genPkt.addSubPkt(0, 0, 0x0800, 0xe, 32, list(range(96, 128)))
+    genPkt.addSubPkt(0, 0, 0x0800, 0xe, 32, list(range(128, 160)))
+    genPkt.addSubPkt(0, 0, 0x0800, 0xe, 32, list(range(160, 192)))
+    genPkt.addSubPkt(0, 0, 0x0800, 0xe, 32, list(range(192, 224)))
+    genPkt.addSubPkt(0, 0, 0x0800, 0xe, 32, list(range(224, 256)))
+
+    sm_idx = 0
+
+    genPkt.addBeforeExc(genTcStartFrameCode(gen_file_def, tc_des))
+
+    genPkt.addAfterExc(genWriteTransLenCode(gen_file_def, sm_idx)
+                       +genWriteTransPktCode(gen_file_def, sm_idx)
+                       +genTrgTransPktCode(gen_file_def, sm_idx)
+                       +genReadAckPktCode(gen_file_def, sm_idx)
+
+                       +genMessageCode("--读取中断")
+                       +genIFRwDataCode(0, 0x74, False, 4)
+                       +genIFRwDataCode(1, 0x74, False, 4)
+                       +genIFRwDataCode(2, 0x74, False, 4)
+                       +genIFRwDataCode(3, 0x74, False, 4)
+                       +genIFRwDataCode(4, 0x74, False, 4)
+
+                       +genMessageCode("--清除中断")
+                       +genIFRwDataCode(0, 0x78, True, 4, [0xff, 0xff, 0xff, 0xff])
+                       +genIFRwDataCode(1, 0x78, True, 4, [0xff, 0xff, 0xff, 0xff])
+                       +genIFRwDataCode(2, 0x78, True, 4, [0xff, 0xff, 0xff, 0xff])
+                       +genIFRwDataCode(3, 0x78, True, 4, [0xff, 0xff, 0xff, 0xff])
+                       +genIFRwDataCode(4, 0x78, True, 4, [0xff, 0xff, 0xff, 0xff])
+
+                       +genMessageCode("--读取中断")
+                       +genIFRwDataCode(0, 0x74, False, 4)
+                       +genIFRwDataCode(1, 0x74, False, 4)
+                       +genIFRwDataCode(2, 0x74, False, 4)
+                       +genIFRwDataCode(3, 0x74, False, 4)
+                       +genIFRwDataCode(4, 0x74, False, 4)
+
+                       +genSlvSMReadData(1, 0, 32)
+                       +genSlvSMReadData(2, 0, 32)
+                       +genSlvSMReadData(3, 0, 32)
+                       +genSlvSMReadData(4, 0, 32)
+
+                       +genSlvSMReadData(1, 0, 32)
+                       +genSlvSMReadData(2, 0, 32)
+                       +genSlvSMReadData(3, 0, 32)
+                       +genSlvSMReadData(4, 0, 32)
+
+                       +genSlvSMReadData(1, 0, 32)
+                       +genSlvSMReadData(2, 0, 32)
+                       +genSlvSMReadData(3, 0, 32)
+                       +genSlvSMReadData(4, 0, 32)
+
+                       +genSlvSMReadData(1, 0, 32)
+                       +genSlvSMReadData(2, 0, 32)
+                       +genSlvSMReadData(3, 0, 32)
+                       +genSlvSMReadData(4, 0, 32)
+
+                       +genSlvSMReadData(1, 0, 32)
+                       +genSlvSMReadData(2, 0, 32)
+                       +genSlvSMReadData(3, 0, 32)
+                       +genSlvSMReadData(4, 0, 32)
+
+                       +genTcEndFrameCode(gen_file_def))
+
+    genPkt.gen("./generated/shin/%s.vh"%(gen_file_def, ), 1)
+
+    return gen_file_def