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A high performance and small footprint system-on-chip based on Migen
Home Page: http://m-labs.hk
License: Other
This project forked from m-labs/misoc
A high performance and small footprint system-on-chip based on Migen
Home Page: http://m-labs.hk
License: Other
__ ___ _ ____ _____ / |/ / (_) / __/__ / ___/ / /|_/ / / / _\ \/ _ \/ /__ /_/ /_/ /_/ /___/\___/\___/ a high performance and small footprint SoC based on Migen [> Features ----------- * LatticeMico32 CPU, modified to include an optional MMU (experimental). * mor1kx (a better OpenRISC implementation) as alternative CPU option. * High performance memory controller capable of issuing several SDRAM commands per FPGA cycle. * Supports SDR, DDR, LPDDR and DDR2. * Provided peripherals: UART, GPIO, timer, GPIO, NOR flash controller, SPI flash controller, Ethernet MAC, and more. * High performance: on Spartan-6, 83MHz system clock frequencies, 10+Gbps DDR SDRAM bandwidth, 1080p 32bpp framebuffer, etc. * Low resource usage: basic implementation fits easily in Spartan-6 LX9. * Portable and easy to customize thanks to Python- and Migen-based architecture. * Design new peripherals using Migen and benefit from automatic CSR maps and logic, etc. * Possibility to encapsulate legacy Verilog/VHDL code. MiSoC comes with built-in support for the following boards: * Mixxeo, the digital video mixer from M-Labs [XC6SLX45] * Milkymist One, the original M-Labs video synthesizer [XC6SLX45] * Papilio Pro, a simple and low-cost development board [XC6SLX9] * KC705, a Kintex-7 devboard from Xilinx [XC7K325T] MiSoC is portable and support for other boards can easily be added as external modules. [> Quick start guide -------------------- 1. Install Python 3.3+, Migen and FPGA vendor's development tools. Get Migen from: https://github.com/m-labs/migen 2. Install JTAG tools. For Mixxeo and M1: http://urjtag.org For Papilio Pro and KC705: http://xc3sprog.sourceforge.net 3. Obtain and build any required flash proxy bitstreams. Flash proxy bitstreams give JTAG access to a flash chip through the FPGA. For Mixxeo and M1: https://github.com/m-labs/fjmem-m1 For Papilio Pro: https://github.com/GadgetFactory/Papilio-Loader (xc3sprog/trunk/bscan_spi/bscan_spi_lx9_papilio.bit) 4. Compile and install binutils. Take the latest version from GNU. mkdir build && cd build ../configure --target=lm32-elf make make install 5. Compile and install GCC. Take gcc-core and gcc-g++ from GNU (version 4.5 or >=4.9). rm -rf libstdc++-v3 mkdir build && cd build ../configure --target=lm32-elf --enable-languages="c,c++" --disable-libgcc --disable-libssp make make install 6. Obtain compiler-rt and set the CRTDIR environment variable to the root of its source tree. svn co http://llvm.org/svn/llvm-project/compiler-rt/trunk compiler-rt export CRTDIR=/path_to/compiler-rt 7. Build and flash the BIOS and bitstream. Run from MiSoC: For Mixxeo: ./make.py all For M1: ./make.py -p m1 all For Papilio Pro: ./make.py -t ppro all For KC705: ./make.py -t kc705 all 8. Run a terminal program on the board's serial port at 115200 8-N-1. You should get the BIOS prompt. 9. Read and experiment with the source! Come to our IRC channel and mailing list! [> License ---------- MiSoC is released under the very permissive two-clause BSD license. Under the terms of this license, you are authorized to use MiSoC for closed-source proprietary designs. Even though we do not require you to do so, those things are awesome, so please do them if possible: * tell us that you are using MiSoC * cite MiSoC in publications related to research it has helped * send us feedback and suggestions for improvements * send us bug reports when something goes wrong * send us the modifications and improvements you have done to MiSoC. The use of "git format-patch" is recommended. If your submission is large and complex and/or you are not sure how to proceed, feel free to discuss it on the mailing list or IRC (#m-labs on Freenode) beforehand. See LICENSE file for full copyright and license info. [> Links -------- Web: http://m-labs.hk Code repository: https://github.com/m-labs/misoc You can contact us on the public mailing list devel [AT] lists.m-labs.hk.
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