125 lines
4.5 KiB
ReStructuredText
125 lines
4.5 KiB
ReStructuredText
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.. _generic_leon3:
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Generic LEON3
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#############
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Overview
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********
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This board configuration is designed to work with LEON3 processor template
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designs available in the GRLIB GPL distribution.
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It can also be used with the evaluation version of the TSIM3 LEON3 simulator.
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Hardware
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********
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The board configuration is compatible with most GRLIB LEON3 FPGA template
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designs such as the Digilent Arty A7, Terasic DE0-Nano and Microsemi
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M2GL-EVAL-KIT.
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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 ``generic_leon3`` 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 ``generic_leon3``, set the ``BOARD`` variable
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to ``generic_leon3``.
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Running on hardware
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===================
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Connect with GRMON, then load and run the application. The example below uses
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the Terasic DE2-115 Cyclone IV FPGA board.
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.. code-block:: console
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$ grmon -altjtag -u
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GRMON debug monitor v3.2.8 eval version
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Copyright (C) 2020 Cobham Gaisler - All rights reserved.
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For latest updates, go to http://www.gaisler.com/
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Comments or bug-reports to support@gaisler.com
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JTAG chain (1): EP3C120/EP4CE115
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GRLIB build version: 4250
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Detected frequency: 50.0 MHz
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Component Vendor
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LEON3 SPARC V8 Processor Cobham Gaisler
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AHB Debug UART Cobham Gaisler
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JTAG Debug Link Cobham Gaisler
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GR Ethernet MAC Cobham Gaisler
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GRDMAC DMA Controller Cobham Gaisler
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LEON2 Memory Controller European Space Agency
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AHB/APB Bridge Cobham Gaisler
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LEON3 Debug Support Unit Cobham Gaisler
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Generic UART Cobham Gaisler
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Multi-processor Interrupt Ctrl. Cobham Gaisler
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Modular Timer Unit Cobham Gaisler
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General Purpose I/O port Cobham Gaisler
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SPI Controller Cobham Gaisler
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AHB Status Register Cobham Gaisler
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Use command 'info sys' to print a detailed report of attached cores
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grmon3> load zephyr/zephyr.elf
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40000000 text 16.2kB / 16.2kB [===============>] 100%
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400040A8 initlevel 40B [===============>] 100%
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400040D0 rodata 484B [===============>] 100%
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400042B4 datas 20B [===============>] 100%
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400042C8 sw_isr_table 256B [===============>] 100%
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400043C8 devices 36B [===============>] 100%
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Total size: 16.98kB (1.91Mbit/s)
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Entry point 0x40000000
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Image zephyr/zephyr.elf loaded
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grmon3> run
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*** Booting Zephyr OS build zephyr-v2.4.0-30-ga124c31ec4cf ***
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Hello World! generic_leon3
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Running in simulation
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=====================
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The same application binary can be simulated with the TSIM3 LEON3 simulator.
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.. code-block:: console
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$ tsim-leon3
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TSIM3 LEON3 SPARC simulator, version 3.0.2 (evaluation version)
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Copyright (C) 2020, Cobham Gaisler - all rights reserved.
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This software may only be used with a valid license.
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For latest updates, go to https://www.gaisler.com/
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Comments or bug-reports to support@gaisler.com
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Number of CPUs: 2
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system frequency: 50.000 MHz
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icache: 1 * 4 KiB, 16 bytes/line (4 KiB total)
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dcache: 1 * 4 KiB, 16 bytes/line (4 KiB total)
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Allocated 4096 KiB SRAM memory, in 1 bank at 0x40000000
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Allocated 32 MiB SDRAM memory, in 1 bank at 0x60000000
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Allocated 2048 KiB ROM memory at 0x00000000
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tsim> load zephyr/zephyr.elf
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section: text, addr: 0x40000000, size 16552 bytes
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section: initlevel, addr: 0x400040a8, size 40 bytes
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section: rodata, addr: 0x400040d0, size 484 bytes
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section: datas, addr: 0x400042b4, size 20 bytes
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section: sw_isr_table, addr: 0x400042c8, size 256 bytes
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section: devices, addr: 0x400043c8, size 36 bytes
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Read 436 symbols
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tsim> run
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Initializing and starting from 0x40000000
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*** Booting Zephyr OS build zephyr-v2.4.0-30-ga124c31ec4cf ***
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Hello World! generic_leon3
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References
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**********
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* `GRLIB IP Library and LEON3, GPL version <https://www.gaisler.com/index.php/downloads/leongrlib>`_
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* `TSIM3 LEON3 simulator <https://www.gaisler.com/index.php/products/simulators/tsim3/tsim3-leon3>`_
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* `GRMON3 debug monitor <https://www.gaisler.com/index.php/products/debug-tools/grmon3>`_
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