diff --git a/README.md b/README.md
index 0b00e6c..e6cd617 100644
--- a/README.md
+++ b/README.md
@@ -1,3 +1,12 @@
 # ds18b20
 
-ds18b20 linux driver
\ No newline at end of file
+ds18b20 linux driver
+
+
+-----
+## 复位时序
+![复位时序](https://git.shuixx.com/shuixx/ds18b20/raw/master/doc/reset.png)
+## 读时序
+![读时序](https://git.shuixx.com/shuixx/ds18b20/raw/master/doc/read.png)
+## 写时序
+![写时序](https://git.shuixx.com/shuixx/ds18b20/raw/master/doc/write.png)