Serial communication is not possible via USB connector with Nucleo STM32F303k8

fukuda_keito · June 22, 2024, 4:57pm

Serial communication is not possible via USB connector with Nucleo STM32F303k8.

Pin setting
TX : PA_12.
RX : PA_11.

Use serial class of mbed.h

JohnnyK · June 22, 2024, 8:05pm

Hello,

UART connected to on board ST-Link that brings Virtual COM Port feature is connected to pin PA_2 and PA_15, how you can see here.

github.com

ARMmbed/mbed-os/blob/20340d79413b73a59bf6d2034d5e1d7fc19f9889/targets/TARGET_STM/TARGET_STM32F3/TARGET_STM32F303x8/TARGET_NUCLEO_F303K8/PinNames.h#L110-L115


      
              CONSOLE_TX = PA_2,
          #endif
          #ifdef MBED_CONF_TARGET_STDIO_UART_RX
              CONSOLE_RX = MBED_CONF_TARGET_STDIO_UART_RX,
          #else
              CONSOLE_RX = PA_15,

There is no posibility to configure pins PA_12 and PA_11 for UART’s TX/RX can be used only for UART flow control RTS/CTS

BR, Jan

fukuda_keito · June 24, 2024, 8:45pm

Thank you for teaching me.
I will try it again once the depeloper environment becomes available.

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Serial communication is not possible via USB connector with Nucleo STM32F303k8

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