diff --git a/zaf_regs.hpp b/zaf_regs.hpp
index fb022fb..880a384 100644
--- a/zaf_regs.hpp
+++ b/zaf_regs.hpp
@@ -34,6 +34,8 @@ typedef enum {
   kreg_mac0             = 7,
   kreg_mac1             = 8,
 
+  kreg_fpga_version = REGADDOFF__FPGA_INFO + 1,
+
   /**
    * @brief
    *  REG 16(32)  STM32配置寄存器0