diff --git a/app/stm32fxxx_boot/readme.txt b/app/stm32fxxx_boot/readme.txt
new file mode 100644
index 0000000..3ac44c7
--- /dev/null
+++ b/app/stm32fxxx_boot/readme.txt
@@ -0,0 +1 @@
+此处放入boot程序
\ No newline at end of file