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Build your hardware, easily!
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Greg Darke bbd15ca567 Wait longer before giving up on the 2nd tftp block. 
Previously we would wait the same number of iterations as it took us to
receive the first data block after sending the request. When using the
build in tftp server in qemu, the first wait loop succeeds (and thus
breaks when 'i' is still 0.

Since the counter was never reset between the first and second data
block, under qemu the tftp_get call would fail before ever checking if
we have received the second block of data.

Now that we initialise 'i' to 12M, we ensure that we wait the same
amount of time for the second data block as it previously did for the
third (and subsequent) blocks.
2017-12-29 23:56:32 +01:00
doc doc: update logo 2015-11-13 23:40:27 +01:00
litex Wait longer before giving up on the 2nd tftp block. 2017-12-29 23:56:32 +01:00
test test/test_gearbox: continue, but we are hitting a simulator bug (related to clock domains declared in modules) 2017-04-25 10:57:34 +02:00
.gitignore litex: reorganize things, first work working version 2015-11-07 17:48:55 +01:00
.gitmodules litex/build/sim: add tapcfg submodule for ethernet 2017-06-28 16:18:15 +02:00
LICENSE add LICENSE, update copyrights, add Migen install instructions 2015-11-11 13:22:39 +01:00
MANIFEST.in initial RISC-V support (with picorv32), still some software to do (manage IRQ, L2 cache flush) 2016-04-01 00:09:17 +02:00
README Fix typo in README: experimental 2017-11-08 21:42:07 -05:00
setup.py add test directory with test_code_8b10b.py (from misoc) 2017-04-24 18:46:55 +02:00

README 

                       __   _ __      _  __
                      / /  (_) /____ | |/_/
                     / /__/ / __/ -_)>  <
                    /____/_/\__/\__/_/|_|
                         Migen inside

                Build your hardware, easily!
             Copyright 2012-2017 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) 2012-2017 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 experimental 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
--------------------
0. If cloned from Git without the --recursive option, get the submodules:
  git submodule update --init

1. Install Python 3.3+ and FPGA vendor's development tools and JTAG tools.

2. Compile and install binutils. Take the latest version from GNU.
  mkdir build && cd build
  ../configure --target=lm32-elf
  make
  make install

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
  make
  make install

4. Build the target of your board...:
  Go to boards/targets and execute the target you want to build

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

6. Run a terminal program on the board's serial port at 115200 8-N-1.
  You should get the BIOS prompt.

[> Contact
----------
E-mail: florent [AT] enjoy-digital.fr