# UART on PS side **URL:** \ **Category:** Support\ **Created:** [June 12, 2024, 7:42pm UTC](https://discuss.pynq.io/t/uart-on-ps-side/7137 "2024-06-12T19:42:02Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![franciscocoutinho](https://avatars.discourse-cdn.com/v4/letter/f/ecccb3/32.png) [@franciscocoutinho](https://discuss.pynq.io/u/franciscocoutinho)\ **Post date:** [June 12, 2024, 7:42pm UTC](https://discuss.pynq.io/t/uart-on-ps-side/7137/1 "2024-06-12T19:42:02Z")
Hello! I’m using a zcu216 and I’d like to use the USB-A port to connect an external device and read the UART content from that device. Which changes do I have to do in my block design to activate this port and access it from the PS side using embedded linux? Thanks in advance! ---
**Author:** ![marioruiz](https://sea1.discourse-cdn.com/flex019/user_avatar/discuss.pynq.io/marioruiz/32/2177_2.png) [@marioruiz](https://discuss.pynq.io/u/marioruiz)\ **Post date:** [June 12, 2024, 8:08pm UTC](https://discuss.pynq.io/t/uart-on-ps-side/7137/2 "2024-06-12T20:08:31Z")
Hi @franciscocoutinho, Welcome to the PYNQ community. Since the USB is connected to the PS, you should need to do anything. It is unclear what you’re running on the PS. But you should be able to use any Linux program that allows access to serial devices, e.g., PuTTY, screen. Mario ---
**Author:** ![franciscocoutinho](https://avatars.discourse-cdn.com/v4/letter/f/ecccb3/32.png) [@franciscocoutinho](https://discuss.pynq.io/u/franciscocoutinho)\ **Post date:** [June 13, 2024, 1:37pm UTC](https://discuss.pynq.io/t/uart-on-ps-side/7137/3 "2024-06-13T13:37:44Z")
Thank you for the reply! I already found the issue, I was missing a jumper on the board (J19). ---
**Author:** ![marioruiz](https://sea1.discourse-cdn.com/flex019/user_avatar/discuss.pynq.io/marioruiz/32/2177_2.png) [@marioruiz](https://discuss.pynq.io/u/marioruiz)\ **Post date:** [June 13, 2024, 3:20pm UTC](https://discuss.pynq.io/t/uart-on-ps-side/7137/4 "2024-06-13T15:20:08Z")