diff --git a/en/peripherals/ethernet.W5500.md b/en/peripherals/ethernet.W5500.md
index 0fd3ec440f92d3c6dfbbfd9d98bbb6d4d70fd00c..b3d41e56f61287e9926732886dd4389dd1257c08 100644
--- a/en/peripherals/ethernet.W5500.md
+++ b/en/peripherals/ethernet.W5500.md
@@ -27,6 +27,8 @@ Loads W5500 driver, initializes W5500 Ethernet NIC and returns W5500 NIC object.
 - `reset_pin` - Connect to reset [GPIO pin](./machine.Pin.md) of `W5500`. The default value is `-1`, indicating that the last configured value is used and the default configuration in the program is `Pin.GPIO17`.
 - `work_mode` - Configure Ethernet working mode. The default mode is terminal mode. `0` and `1` respectively represents terminal mode and gateway mode. Terminal mode indicates that the module is used as a terminal device to connect to a network supply device to access the network. Gateway mode indicates that the module is used as a gateway to provide network access for external devices through LTE network.
 
+> Note: Do not use the hardware CS pin of spi_port. Instead, select another GPIO pin as the CS pin.
+
 ## Methods 
 
 ### `W5500.set_addr`
diff --git a/en/peripherals/machine.UART.md b/en/peripherals/machine.UART.md
index c8c714f6f62bc421b8449e049c72dc59d045aa03..43e3381c7f2c9cb2aae40b66b745c7671ae17620 100644
--- a/en/peripherals/machine.UART.md
+++ b/en/peripherals/machine.UART.md
@@ -1063,7 +1063,7 @@ This class transmits data through the UART.
 <blockquote>
 <p>Attention：</p>
         <p>Uart0 is not recommended</p>
-        <p>EC200ACN_LA module uart1 pin number is different from other models:</p>
+        <p>EC200ACN_LA,EC200AEU_V1HA,EC200ACN_V1DA module uart1 pin number is different from other models:</p>
         <p>TX: Pin26</p>
         <p>RX: Pin27</p>
 </blockquote>
diff --git a/zh/peripherals/ethernet.W5500.md b/zh/peripherals/ethernet.W5500.md
index 8556b5abe3ae8601ba7c39a784d3a2b92307be1a..62a335512a34d0df5e6a4c723b2578f1e5b609ff 100644
--- a/zh/peripherals/ethernet.W5500.md
+++ b/zh/peripherals/ethernet.W5500.md
@@ -27,6 +27,8 @@ class ethernet.W5500(mac, ip='', subnet='', gateway='', spi_port=-1, spi_cs_pin=
 - `reset_pin` - 连接`W5500`的重置[GPIO管脚](./machine.Pin.md)，默认值为`-1`, 表示上次配置的值，程序中默认配置为 `Pin.GPIO17`。
 - `work_mode` - 以太网工作模式配置，默认为终端模式，`0`/`1` 分别表示终端模式/网关模式。终端模式表示该模块作为终端设备连接供网设备上网。网关模式表示该模块作为网关，为外部设备提供网络访问，通过`4G`上网。
 
+> 注意：请勿使用spi_port的硬件CS脚，另选一个GPIO作为CS脚
+
 ## 方法
 
 ### `W5500.set_addr`
diff --git a/zh/peripherals/machine.UART.md b/zh/peripherals/machine.UART.md
index 7244c3603c262326c66854e3c52b21215e600719..2d08b9b314f05c332c8470d3bb30b76d41265c2d 100644
--- a/zh/peripherals/machine.UART.md
+++ b/zh/peripherals/machine.UART.md
@@ -1095,7 +1095,7 @@
 <blockquote>
 <p>注意：</p>
         <p>uart0不建议使用</p>
-        <p>EC200ACN_LA模组uart1引脚号与其他型号不同：</p>
+        <p>EC200ACN_LA,EC200AEU_V1HA,EC200ACN_V1DA 模组uart1引脚号与其他型号不同：</p>
         <p>TX:引脚号26</p>
         <p>RX:引脚号27</p>
 </blockquote>