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boards: arduino: add pull-ups to all stm32 UART RX lines #7

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Merged
pillo79 merged 1 commit into from
Dec 17, 2025
Merged

boards: arduino: add pull-ups to all stm32 UART RX lines #7

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12 changes: 12 additions & 0 deletions boards/arduino/giga_r1/arduino_giga_r1_stm32h747xx_m7.dts
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Original file line number Diff line number Diff line change
Expand Up @@ -76,20 +76,32 @@
clock-frequency = <DT_FREQ_M(480)>;
};

&usart1_rx_pb7 {
bias-pull-up;
};

&usart1 {
status = "okay";
pinctrl-0 = <&usart1_tx_pa9 &usart1_rx_pb7>;
pinctrl-names = "default";
current-speed = <115200>;
};

&usart6_rx_pc7 {
bias-pull-up;
};

&usart6 {
status = "disabled";
pinctrl-0 = <&usart6_tx_pg14 &usart6_rx_pc7>;
pinctrl-names = "default";
current-speed = <115200>;
};

&uart4_rx_pi9 {
bias-pull-up;
};

&uart4 {
status = "disabled";
pinctrl-0 = <&uart4_tx_ph13 &uart4_rx_pi9>;
Expand Down
10 changes: 10 additions & 0 deletions boards/arduino/opta/arduino_opta-common.dtsi
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Original file line number Diff line number Diff line change
Expand Up @@ -104,6 +104,16 @@
};
};

&usart6_rx_pg9 {
bias-pull-up;
};

&usart6 {
pinctrl-0 = <&usart6_tx_pg14 &usart6_rx_pg9>;
pinctrl-names = "default";
current-speed = <115200>;
};

&adc1 {
pinctrl-0 = <&adc1_inp0_pa0_c &adc1_inp6_pf12>;
pinctrl-names = "default";
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16 changes: 16 additions & 0 deletions boards/arduino/portenta_h7/arduino_portenta_h7-common.dtsi
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Original file line number Diff line number Diff line change
Expand Up @@ -49,27 +49,43 @@
};

/* UART0 in datasheet */
&uart4_rx_pi9 {
bias-pull-up;
};

&uart4 {
pinctrl-0 = <&uart4_tx_pa0 &uart4_rx_pi9>;
pinctrl-names = "default";
current-speed = <115200>;
};

/* UART1 in datasheet */
&usart1_rx_pa10 {
bias-pull-up;
};

&usart1 {
pinctrl-0 = <&usart1_tx_pa9 &usart1_rx_pa10>;
pinctrl-names = "default";
current-speed = <115200>;
};

/* UART2 in datasheet */
&usart6_rx_pg9 {
bias-pull-up;
};

&usart6 {
pinctrl-0 = <&usart6_tx_pg14 &usart6_rx_pg9>;
pinctrl-names = "default";
current-speed = <115200>;
};

/* UART3 in datasheet */
&uart8_rx_pj9 {
bias-pull-up;
};

&uart8 {
pinctrl-0 = <&uart8_tx_pj8 &uart8_rx_pj9>;
pinctrl-names = "default";
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12 changes: 10 additions & 2 deletions boards/arduino/uno_q/arduino_uno_q-common.dtsi
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Original file line number Diff line number Diff line change
Expand Up @@ -98,14 +98,22 @@ stm32_lp_tick_source: &lptim1 {
status = "okay";
};

&lpuart1_rx_pg8 {
bias-pull-up;
};

&lpuart1 {
pinctrl-0 = <&lpuart1_tx_pg7 &lpuart1_rx_pg8
&lpuart1_rts_pg6 &lpuart1_cts_pg5>;
&lpuart1_rts_pg6 &lpuart1_cts_pg5>;
pinctrl-names = "default";
current-speed = <115200>;
status = "okay";
};

&usart1_rx_pb7 {
bias-pull-up;
};

&usart1 {
status = "okay";
pinctrl-0 = <&usart1_tx_pb6 &usart1_rx_pb7>;
Expand Down Expand Up @@ -245,4 +253,4 @@ zephyr_udc0: &usbotg_fs {

&gpiog {
status = "okay";
};
};
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