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docs(uart): clarify example pins need a USB-to-UART bridge

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Mo Fei Fei
2026-09-10 14:50:43 +08:00
committed by morris
parent 2dc25a7bbe
commit bb2c545085
7 changed files with 21 additions and 2 deletions
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docs/en/get-started/establish-serial-connection.rst
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@@ -20,6 +20,8 @@ Some development boards have the USB-to-UART bridge installed. If a board does n
The {IDF_TARGET_NAME} supports the USB peripheral. In this case, the USB-to-UART bridge is not needed and the device can be flashed directly.
The USB peripheral and its USB PHY are separate from the UART controllers. UART controllers output UART signals on GPIOs, so connecting a UART to a PC over USB still requires an onboard or external USB-to-UART bridge.
.. blockdiag::
:scale: 70%
:caption: SoC with Supported USB