70 lines
2.0 KiB
ReStructuredText
70 lines
2.0 KiB
ReStructuredText
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.. _m2gl025-miv:
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Microsemi M2GL025 Mi-V
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######################
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Overview
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********
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The Microsemi M2GL025 board is an IGLOO2 FPGA based development board.
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The Mi-V RISC-V soft CPU can be deployed on the MGL025 board.
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More information can be found on
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`Microsemi's website <https://www.microsemi.com/product-directory/embedded-processing/4406-cpus>`_.
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Programming and debugging
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*************************
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Building
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========
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Applications for the ``m2gl025_miv`` board configuration can be built as usual
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(see :ref:`build_an_application`).
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In order to build the application for ``m2gl025_miv``, set the ``BOARD`` variable
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to ``m2gl025_miv``.
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.. code-block:: bash
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export BOARD="m2gl025_miv"
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Flashing
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========
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In order to upload the application to the device, you'll need OpenOCD and GDB
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with RISC-V support.
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You can get them as a part of SoftConsole SDK.
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Download and installation instructions can be found on
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`Microsemi's SoftConsole website
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<https://www.microsemi.com/product-directory/design-tools/4879-softconsole>`_.
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With the necessary tools installed, you can connect to the board using OpenOCD.
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To establish an OpenOCD connection run:
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.. code-block:: bash
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sudo LD_LIBRARY_PATH=<softconsole_path>/openocd/bin \
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<softconsole_path>/openocd/bin/openocd --file \
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<softconsole_path>/openocd/share/openocd/scripts/board/microsemi-riscv.cfg
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Leave it running, and in a different terminal, use GDB to upload the binary to
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the board. You can use the RISC-V GDB from a toolchain delivered with
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SoftConsole SDK.
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Here is the GDB terminal command to connect to the device
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and load the binary:
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.. code-block:: console
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<softconsole_path>/riscv-unknown-elf-gcc/bin/riscv64-unknown-elf-gdb \
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-ex "target extended-remote localhost:3333" \
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-ex "set mem inaccessible-by-default off" \
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-ex "set arch riscv:rv32" \
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-ex "set riscv use_compressed_breakpoints no" \
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-ex "load" <path_to_executable>
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Debugging
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=========
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Refer to the detailed overview of :ref:`application_debugging`.
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