79 lines
1.7 KiB
ReStructuredText
79 lines
1.7 KiB
ReStructuredText
PicoSoC demo
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~~~~~~~~~~~~
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This example features a picorv32 soft CPU and a SoC based on it. To build the
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picosoc example, run the following commands:
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.. code-block:: bash
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:name: example-picosoc-a35t-group
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TARGET="arty_35" make -C picosoc_demo
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.. code-block:: bash
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:name: example-picosoc-a100t-group
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TARGET="arty_100" make -C picosoc_demo
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.. code-block:: bash
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:name: example-picosoc-nexys4ddr-group
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TARGET="nexys4ddr" make -C picosoc_demo
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.. code-block:: bash
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:name: example-picosoc-basys3-group
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TARGET="basys3" make -C picosoc_demo
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At completion, the bitstreams are located in the build directory:
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.. code-block:: bash
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cd picosoc_demo/build/<board>
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Now you can upload the design with:
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.. code-block:: bash
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openocd -f ${INSTALL_DIR}/${FPGA_FAM}/conda/envs/${FPGA_FAM}/share/openocd/scripts/board/digilent_arty.cfg -c "init; pld load 0 top.bit; exit"
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You should observe the following line in the OpenOCD output:
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.. code-block::
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Info : JTAG tap: xc7.tap tap/device found: 0x0362d093 (mfg: 0x049 (Xilinx), part: 0x362d, ver: 0x0)
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The UART output should look as follows:
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.. code-block::
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Terminal ready
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Press ENTER to continue..
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Press ENTER to continue..
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Press ENTER to continue..
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Press ENTER to continue..
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____ _ ____ ____
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| _ \(_) ___ ___/ ___| ___ / ___|
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| |_) | |/ __/ _ \___ \ / _ \| |
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| __/| | (_| (_) |__) | (_) | |___
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|_| |_|\___\___/____/ \___/ \____|
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[9] Run simplistic benchmark
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Command>
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.. note::
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PicoSoC uses baud rate of ``460800`` by default.
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The board's LED should blink at a regular rate from left to the right
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.. image:: ../../docs/images/picosoc-example-basys3.gif
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:width: 49%
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:align: center
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