diff --git a/fpga/copy_bits.tcl b/fpga/copy_bits.tcl
new file mode 100644
index 0000000..57daee3
--- /dev/null
+++ b/fpga/copy_bits.tcl
@@ -0,0 +1,9 @@
+# 获取 bit 文件路径
+set bitfile "project/Loongson_Soc.runs/impl_1/soc_top.bit"
+# 目标路径
+set dst "../sdk/top.bit"
+
+# 执行复制
+file copy -force $bitfile $dst
+
+puts "Bitstream copied to $dst"