- __ ___ _ ____ _____
- / |/ / (_) / __/__ / ___/
- / /|_/ / / / _\ \/ _ \/ /__
- /_/ /_/ /_/ /___/\___/\___/
-
-a high performance and small footprint SoC based on Migen
-
-
-[> Features
------------
- * LatticeMico32 CPU, modified to include an optional MMU (experimental).
- * 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]
-MiSoC is portable and support for other boards can easily be added as external
-modules.
+ __ _ __ _ __
+ / / (_) /____ | |/_/
+ / /__/ / __/ -_)> <
+ /____/_/\__/\__/_/|_|
+ Migen inside
+
+ Build your hardware, easily!
+ Copyright 2012-2016 Enjoy-Digital
+
+[> Intro
+--------
+LiteX is an alternative to Migen/MiSoC maintained and used by Enjoy-Digital
+to build our cores, integrate them in complete SoC and load/flash them to
+the hardware and experiment new features.
+
+The structure of LiteX is kept close to Migen/MiSoC to ease collaboration
+between projects and efforts are made to keep cores developed with LiteX
+compatible with Migen/MiSoC.
+
+[> License
+----------
+LiteX is Copyright (c) 2012-2015 Enjoy-Digital under BSD Lisense.
+Since it is based on Migen/MiSoC, please also refer to LICENSE file in gen/soc
+directory or git history to get correct copyrights.
+
+[> Sub-packages
+---------------
+gen:
+ Provides specific or experimentatl modules to generate HDL that are not integrated
+ in Migen.
+
+build:
+ Provides tools to build FPGA bitstreams (interface to vendor toolchains) and to
+ simulate HDL code or full SoCs.
+
+soc:
+ Provides definitions/modules to build cores (bus, bank, flow), cores and tools
+ to build a SoC from such cores.
+
+boards:
+ Provides platforms and targets for the supported boards.
[> 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: http://xc3sprog.sourceforge.net
+0. If cloned from Git without the --recursive option, get the submodules:
+ git submodule update --init
-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)
+1. Install Python 3.3+, Migen and FPGA vendor's development tools and JTAG tools.
+ Get Migen from: https://github.com/m-labs/migen
-4. Compile and install binutils. Take the latest version from GNU.
+2. 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 4.5. Take gcc-core and gcc-g++ from GNU.
+
+3. (Optional, only if you want to use a lm32 CPU in you SoC)
+ 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
+ ../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
+4. Build the target of your board...:
+ Go to boards/targets and execute the target you want to build
-7. Build and flash the BIOS and bitstream. Run from MiSoC:
- For Mixxeo: ./make.py all
- For M1: ./make.py -p m1 -s FramebufferSoC all
- For Papilio Pro: ./make.py -t simple all
+5. ... and/or install Verilator and test LiteX on your computer:
+ Download and install Verilator: http://www.veripool.org/
+ Install libevent-devel / json-c-devel packages
+ Go to boards/targets
+ ./sim.py
-8. Run a terminal program on the board's serial port at 115200 8-N-1.
+6. 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
+[> Contact
----------
-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.
+E-mail: florent [AT] enjoy-digital.fr
\ No newline at end of file
projects / litex.git / blobdiff