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Enable multicore samples for imx943 evk #95046

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d45b9be
samples: enable multicore samples for imx943 evk board
biwenli Oct 17, 2025
baeffd2
boards: nxp: imx943_evk: m33: add lpuart3 node for debugging
biwenli Oct 17, 2025
3dbdb03
boards: nxp: imx943_evk: doc: spell fix
biwenli Oct 17, 2025
8c2e51b
tests: net: mqtt_sn: fix build error
biwenli Oct 20, 2025
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29 changes: 25 additions & 4 deletions boards/nxp/imx943_evk/doc/index.rst
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Original file line number Diff line number Diff line change
Expand Up @@ -375,9 +375,9 @@ For DDR target

Note:

a. Please connect two additional usb2serial converter between Host PC and board's
auduino interface with dupont cable for M70 in M70 MIX and M71 in M71 MIX.
Connection as below,
a. Please connect two additional USB-to-Serial converters between the Host PC and the board's
Arduino interface using Dupont cables. For M70 in M7MIX0 and M71 in M7MIX1,
make the connections as shown below.

.. code-block:: text

Expand All @@ -393,7 +393,28 @@ Connection as below,
| | | |--GND----------------GND(J43-14)-| |
+---------+ +-----------------+ +---------+

b. There will be 4 serial ports identified when connect USB cable to debug port.
b. For debugging system via JTAG interface, please connect one additional
USB-to-Serial converter between the Host PC and the board's Arduino interface
using Dupont cables. For M33S in NETCMIX,
(LPUART8's pads reused by JTAG's pads, so change to use another UART3,
then UART3 and JTAG can be used at the same time.)
make the connections as shown below,

.. code-block:: text

+---------+ USB +-----------------+ +---------+
| Host PC |<----->| USB-to-Serial c |--TX-->RX(J44-10, M1_LED_TP1, LPUART3_RX)--| board |
| | | |--RX<--TX(J51-18, M1_PWM_CX, LPUART3_TX)---| |
| | | |--GND--GND(J45-12)-------------------------| |
| | +-----------------+ | |
| | | |
| | | |
| | | |
| | | |
| | | |
+---------+ +---------+

c. There will be 4 serial ports identified when connect USB cable to debug port.
The first serial port will be UART8 for M33. As there is multiplexing between JTAG
and UART8, below bcu (`bcu 1.1.113 download`_) configuration is needed to use UART8.

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10 changes: 10 additions & 0 deletions boards/nxp/imx943_evk/imx943_evk-pinctrl.dtsi
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Expand Up @@ -142,6 +142,16 @@
};
};

lpuart3_default: lpuart3_default {
group0 {
pinmux = <&iomuxc_gpio_io31_lpuart_rx_lpuart3_rx>,
<&iomuxc_gpio_io30_lpuart_tx_lpuart3_tx>;
bias-pull-up;
slew-rate = "slightly_fast";
drive-strength = "x4";
};
};

lpuart8_default: lpuart8_default {
group0 {
pinmux = <&iomuxc_dap_tclk_swclk_lpuart_rx_lpuart8_rx>,
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8 changes: 7 additions & 1 deletion boards/nxp/imx943_evk/imx943_evk_mimx94398_m33.dts
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Expand Up @@ -14,7 +14,6 @@
compatible = "nxp,imx943_evk";

chosen {
/* TCM */
zephyr,flash = &itcm;
zephyr,sram = &dtcm;

Expand Down Expand Up @@ -107,6 +106,13 @@
status = "okay";
};

&lpuart3 {
status = "disabled";
current-speed = <115200>;
pinctrl-0 = <&lpuart3_default>;
pinctrl-names = "default";
};

&lpuart8 {
status = "okay";
current-speed = <115200>;
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1 change: 0 additions & 1 deletion boards/nxp/imx943_evk/imx943_evk_mimx94398_m7_0.dts
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Original file line number Diff line number Diff line change
Expand Up @@ -14,7 +14,6 @@
compatible = "nxp,imx943_evk";

chosen {
/* TCM */
zephyr,flash = &itcm;
zephyr,sram = &dtcm;

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1 change: 0 additions & 1 deletion boards/nxp/imx943_evk/imx943_evk_mimx94398_m7_1.dts
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Original file line number Diff line number Diff line change
Expand Up @@ -14,7 +14,6 @@
compatible = "nxp,imx943_evk";

chosen {
/* TCM */
zephyr,flash = &itcm;
zephyr,sram = &dtcm;

Expand Down
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