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107 lines
2.9 KiB
107 lines
2.9 KiB
.. zephyr:board:: arduino_uno_r4 |
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Overview |
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The Arduino UNO R4 Minima/WiFi is a development board featuring the Renesas RA4M1 SoC |
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in the Arduino form factor and is compatible with traditional Arduino. |
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Hardware |
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- Renesas RA4MA1 Processor (ARM Cortex-M4 at 48 MHz) |
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- 256 KiB flash memory and 32 KiB of RAM |
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- One user LEDs |
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- One reset button |
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- One WiFi Transceiver (Arduino UNO R4 WiFi only) |
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- One 12x8 LED Matrix (Arduino UNO R4 WiFi only) |
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- Built-in CMSIS-DAP debug adapter (Arduino UNO R4 WiFi only) |
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Supported Features |
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================== |
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.. zephyr:board-supported-hw:: |
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Programming and debugging |
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************************* |
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.. zephyr:board-supported-runners:: |
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Debug adapter |
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============= |
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A debug adapter is required to flash and debug programs. |
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Arduino UNO R4 WiFi has a built-in debug adapter that |
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you can use for flashing and debugging. |
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In the Arduino UNO R4 Minima case, You need to prepare |
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debug adapter separately. A 5V-compatible CMSIS-DAP adapter |
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adapts to this board. |
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Building & Flashing |
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=================== |
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You can build and flash with ``west flash`` command (See |
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:ref:`build_an_application` and |
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:ref:`application_run` for more details). |
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Here is an example for building and flashing the :zephyr:code-sample:`blinky` application. |
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.. zephyr-app-commands:: |
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:zephyr-app: samples/basic/blinky |
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:board: arduino_uno_r4@minima |
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:goals: build flash |
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.. zephyr-app-commands:: |
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:zephyr-app: samples/basic/blinky |
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:board: arduino_uno_r4@wifi |
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:goals: build flash |
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Debugging |
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========= |
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Debugging can be done with ``west debug`` command. |
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The following command is debugging the :zephyr:code-sample:`blinky` application. |
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Also, see the instructions specific to the debug server that you use. |
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.. zephyr-app-commands:: |
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:zephyr-app: samples/basic/blinky |
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:board: arduino_uno_r4@minima |
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:maybe-skip-config: |
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:goals: debug |
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.. zephyr-app-commands:: |
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:zephyr-app: samples/basic/blinky |
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:board: arduino_uno_r4@wifi |
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:maybe-skip-config: |
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:goals: debug |
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Using pyOCD |
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----------- |
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Various debug adapters, including cmsis-dap probes, can debug the Arduino UNO R4 with pyOCD. |
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The default configuration uses the pyOCD for debugging. |
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You must install CMSIS-Pack when flashing or debugging Arduino UNO R4 Minima with pyOCD. |
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If not installed yet, execute the following command to install CMSIS-Pack for Arduino UNO R4. |
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.. code-block:: console |
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pyocd pack install r7fa4m1ab |
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Restoring Arduino Bootloader |
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============================ |
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If you corrupt the Arduino bootloader, you can restore it with the following command. |
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.. code-block:: console |
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wget https://raw.githubusercontent.com/arduino/ArduinoCore-renesas/main/bootloaders/UNO_R4/dfu_minima.hex |
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pyocd flash -e sector -a 0x0 -t r7fa4m1ab dfu_minima.hex |
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.. code-block:: console |
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wget https://raw.githubusercontent.com/arduino/ArduinoCore-renesas/main/bootloaders/UNO_R4/dfu_wifi.hex |
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pyocd flash -e sector -a 0x0 -t r7fa4m1ab dfu_wifi.hex
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