diff --git a/driver/src/hal/board_info.c b/driver/src/hal/board_info.c
index a24641c..1244ca9 100644
--- a/driver/src/hal/board_info.c
+++ b/driver/src/hal/board_info.c
@@ -1506,3 +1506,39 @@ bool_t iot_board_is_overseas_rf_band(void)
     }
 }
 
+
+
+// 写入硬件识别码：
+// extern uint32_t iot_version_hex(void);
+// extern void iot_board_hw_version_reload();
+// extern uint32_t board_load_oem_cfg();
+void write_hw_version(uint32_t hw_ver)
+{
+    iot_cal_data_cfg_t *calcfg;
+    int ret = 0xff;
+
+    ret = iot_cal_data_get_cfg(&calcfg);
+    iot_printf("write_hw_version:%d,%d,%d\n",ret,
+        calcfg->halphy_cfg.hw_ver_major,calcfg->halphy_cfg.hw_ver_minor);
+    calcfg->halphy_cfg.hw_ver_major = hw_ver>>16;  //31.200
+    calcfg->halphy_cfg.hw_ver_minor = hw_ver&0xffff;    //02.00
+    calcfg->halphy_cfg.magic = IOT_OEM_PHY_MAGIC_NUM;
+    calcfg->halphy_cfg.mask = 0;
+
+    /* update pt fw ver */
+    calcfg->halphy_cfg.pt_fw_ver = iot_version_hex();
+    /* update mask */
+    iot_cal_data_set_mask(calcfg, IOT_PHY_CFG_MASK_PT_VER);
+    iot_cal_data_set_cfg(calcfg);
+
+    ret = iot_cal_data_set_cfg(calcfg);
+    iot_printf("write_hw_version:%d\n",ret);
+
+    ret = iot_cal_data_get_cfg(&calcfg);
+    iot_printf("write_hw_version:%d,%d,%d\n",ret,
+        calcfg->halphy_cfg.hw_ver_major,calcfg->halphy_cfg.hw_ver_minor);
+    iot_board_hw_version_reload();
+    // board_load_oem_cfg();
+}
+
+
diff --git a/inc/driver/iot_board.h b/inc/driver/iot_board.h
index 5a14d91..5ad2c12 100644
--- a/inc/driver/iot_board.h
+++ b/inc/driver/iot_board.h
@@ -605,6 +605,7 @@ bool_t iot_board_is_5v_power_in(void);
  */
 bool_t iot_board_is_overseas_rf_band(void);
 
+void write_hw_version(uint32_t hw_ver);
 
 #ifdef __cplusplus
 }