diff --git a/iflytop_xsync_protocol.h b/iflytop_xsync_protocol.h
index 3eb8bb5..3db85b1 100644
--- a/iflytop_xsync_protocol.h
+++ b/iflytop_xsync_protocol.h
@@ -116,12 +116,13 @@ typedef enum {
    * @brief
    *  REG 16(32)  STM32配置寄存器0
    */
-  kxsync_reg_stm32_obtaining_ip_mode        = XYSNC_REG_STM32_CONFIG_START_ADD + 0,
-  kxsync_reg_stm32_ip                       = XYSNC_REG_STM32_CONFIG_START_ADD + 1,
-  kxsync_reg_stm32_gw                       = XYSNC_REG_STM32_CONFIG_START_ADD + 2,
-  kxsync_reg_stm32_netmask                  = XYSNC_REG_STM32_CONFIG_START_ADD + 3,
-  kxsync_reg_stm32_camera_sync_signal_count = XYSNC_REG_STM32_CONFIG_START_ADD + 4,  // 写任意数值之后清零
-  kxsync_reg_stm32_config0                  = XYSNC_REG_STM32_CONFIG_START_ADD + 5,  // bit0: timecode report enable, bit1: camera sync report enable
+  kxsync_reg_stm32_obtaining_ip_mode                = XYSNC_REG_STM32_CONFIG_START_ADD + 0,
+  kxsync_reg_stm32_ip                               = XYSNC_REG_STM32_CONFIG_START_ADD + 1,
+  kxsync_reg_stm32_gw                               = XYSNC_REG_STM32_CONFIG_START_ADD + 2,
+  kxsync_reg_stm32_netmask                          = XYSNC_REG_STM32_CONFIG_START_ADD + 3,
+  kxsync_reg_stm32_config0                          = XYSNC_REG_STM32_CONFIG_START_ADD + 4,  // bit0: timecode report enable, bit1: camera sync report enable
+  kxsync_reg_stm32_camera_sync_signal_count         = XYSNC_REG_STM32_CONFIG_START_ADD + 5,  // 写任意数值之后清零
+  kxsync_reg_stm32_camera_sync_signal_report_period = XYSNC_REG_STM32_CONFIG_START_ADD + 6,  // 多少帧上报一次
 
   kxsync_reg_stm32_action0     = XYSNC_REG_STM32_CONFIG_START_ADD + 14,  // action reg
   kxsync_reg_stm32_action_val0 = XYSNC_REG_STM32_CONFIG_START_ADD + 15,  // action val reg