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4 changes: 4 additions & 0 deletions .buildinfo
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# Sphinx build info version 1
# This file hashes the configuration used when building these files. When it is not found, a full rebuild will be done.
config: 5ee66292091ff32fcf1050388dd8a28f
tags: 645f666f9bcd5a90fca523b33c5a78b7
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20 changes: 20 additions & 0 deletions _sources/compatibility/board.rst.txt
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.. _compatibility:boards:

Boards
######

.. NOTE::
`arty` can be any of the board names from the first column.

.. code-block:: bash
openFPGALoader -b arty bitstream.bit # Loading in SRAM (volatile)
openFPGALoader -b arty -f bitstream.bit # Writing in flash (non-volatile)
.. include:: boards.inc

* IF: Internal Flash
* EF: External Flash
* AS: Active Serial flash mode
* NA: Not Available
* NT: Not Tested
6 changes: 6 additions & 0 deletions _sources/compatibility/cable.rst.txt
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.. _compatibility:cables:

Cables
######

.. include:: cable.inc
11 changes: 11 additions & 0 deletions _sources/compatibility/fpga.rst.txt
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.. _compatibility:fpgas:

FPGAs
#####

.. include:: fpga.inc

* IF: Internal Flash
* AS: Active Serial flash mode
* NA: Not Available
* NT: Not Tested
101 changes: 101 additions & 0 deletions _sources/guide/advanced.rst.txt
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.. _advanced-usage:

Advanced usage of openFPGALoader
################################

Resetting an FPGA
=================

.. code-block:: bash
openFPGALoader [options] -r
Using negative edge for TDO's sampling
======================================

If transaction are unstable you can try to change read edge by using

.. code-block:: bash
openFPGALoader [options] --invert-read-edge
Reading the bitstream from STDIN
================================

.. code-block:: bash
cat /path/to/bitstream.ext | openFPGALoader --file-type ext [options]
``--file-type`` is required to detect file type.

.. NOTE::
It's possible to load a bitstream through network:

.. code-block:: bash
# FPGA side
nc -lp port | openFPGALoader --file-type xxx [option
# Bitstream side
nc -q 0 host port < /path/to/bitstream.ext
Automatic file type detection bypass
====================================
Default behavior is to use file extension to determine file parser.
To avoid this mechanism ``--file-type type`` must be used.
FT231/FT232 bitbang mode and pins configuration
===============================================
FT232R and ft231X may be used as JTAG programmer.
JTAG communications are emulated in bitbang mode.
To use these devices user needs to provides both the cable and the pin mapping:
.. code-block:: bash
openFPGALoader [options] -cft23XXX --pins=TDI:TDO:TCK:TMS /path/to/bitstream.ext
where:
* ft23XXX may be ``ft232RL`` or ``ft231X``.
* TDI:TDO:TCK:TMS may be the pin ID (0 <= id <= 7) or string value.
allowed values are:
===== ==
value ID
===== ==
TXD 0
RXD 1
RTS 2
CTS 3
DTR 4
DSR 5
DCD 6
RI 7
===== ==
Writing to an arbitrary address in flash memory
===============================================
With FPGA using an external SPI flash (*xilinx*, *lattice ECP5/nexus/ice40*, *anlogic*, *efinix*) option ``-o`` allows
one to write raw binary file to an arbitrary adress in FLASH.
Using an alternative directory for *spiOverJtag*
================================================
By setting ``OPENFPGALOADER_SOJ_DIR`` it's possible to override default
*spiOverJtag* bitstreams directory:
.. code-block:: bash
export OPENFPGALOADER_SOJ_DIR=/somewhere
openFPGALoader xxxx
or
.. code-block:: bash
OPENFPGALOADER_SOJ_DIR=/somewhere openFPGALoader xxxx
65 changes: 65 additions & 0 deletions _sources/guide/first-steps.rst.txt
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.. _first-steps:

First steps with openFPGALoader
###############################

Install
=======

Packages are available for Linux distributions, Windows (MSYS2) and macOS:

* *Arch Linux*: ``sudo pacman -S openfpgaloader``

* *Fedora*: ``sudo dnf copr enable mobicarte/openFPGALoader; sudo dnf install openFPGALoader``

* *MSYS2*: ``pacman -S mingw-w64-ucrt-x86_64-openFPGALoader``

* *macOS*: ``brew install openfpgaloader``

More instructions for other installation scenarios are available in :ref:`install`.

Programming a development board
===============================

Just simply replace ``my_fpga_board`` with any FPGA board from :ref:`compatibility:boards`
(or ``openFPGALoader --list-boards``) in any of the two commands below, depending on if you want to program the volatile
part of your FPGA (faster but not persistent) or the flash part of your FPGA (slower but persistent):

.. code-block:: bash
openFPGALoader -b my_fpga_board my_bitstream.bit # Program to SRAM
openFPGALoader -b my_fpga_board -f my_bitstream.bit # Program to flash
.. NOTE::
When a bitstream file is compatible with both memory load and FLASH write, the default behavior is to load bitstream
in memory.

Programming an "standalone" FPGA
================================

If your FPGA doesn't come with a built-in programmer or if you prefer to use an external cable, you can specify a cable
to use from :ref:`compatibility:cables` (or ``openFPGALoader --list-cables``):

.. code-block:: bash
openFPGALoader -c my_cable my_bitstream.bit # Program to SRAM
openFPGALoader -c my_cable -f my_bitstream.bit # Program to flash
.. NOTE::
For some cable (like digilent adapters) signals from the converter are not just directly to the FPGA.
For this case, the ``-c`` must be added.

.. HINT::
FTDI/FTDI-compatible cable users: the ``-d`` option lets you specify a specific FTDI device:

.. code-block:: bash
openFPGALoader -d /dev/ttyUSBX
When the ``-d`` option is not provided, openFPGALoader will opens the first FTDI adapter it finds.
Therefore it is preferable to use this flag if your computer is connected to multiple FTDI devices.

Troubleshooting
===============

Please refer to :ref:`troubleshooting`.
181 changes: 181 additions & 0 deletions _sources/guide/install.rst.txt
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.. _install:

Installing openFPGALoader
#########################

Linux
=====

Arch Linux
----------

openFPGALoader is available in the default repositories:

.. code-block:: bash
sudo pacman -S openfpgaloader
Alternatively, you could build from source. First: install required libraries:

.. code-block:: bash
sudo pacman -S git cmake make gcc pkgconf libftdi libusb zlib hidapi gzip
Build step is similar as Debian

Fedora
------

openFPGALoader is available as a Copr repository:

.. code-block:: bash
sudo dnf copr enable mobicarte/openFPGALoader
sudo dnf install openFPGALoader
From source (Debian, Ubuntu)
----------------------------

This application uses ``libftdi1``, so this library must be installed (and, depending on the distribution, headers too):

.. code-block:: bash
sudo apt install \
git \
gzip \
libftdi1-2 \
libftdi1-dev \
libhidapi-hidraw0 \
libhidapi-dev \
libudev-dev \
zlib1g-dev \
cmake \
pkg-config \
make \
g++
.. HINT::
``libudev-dev`` is optional, may be replaced by ``eudev-dev`` or just not installed.

By default, ``(e)udev`` support is enabled (used to open a device by his ``/dev/xx`` node).
If you don't want this option, use:

.. code-block:: bash
-DENABLE_UDEV=OFF
By default, ``cmsisdap`` support is enabled (used for colorlight I5, I9).
If you don't want this option, use:

.. code-block:: bash
-DENABLE_CMSISDAP=OFF
Alternatively you can manually specify the location of ``libusb`` and ``libftdi1``:

.. code-block:: bash
-DUSE_PKGCONFIG=OFF \
-DLIBUSB_LIBRARIES=<path_to_libusb> \
-DLIBFTDI_LIBRARIES=<path_to_libftdi> \
-DLIBFTDI_VERSION=<version> \
-DCMAKE_CXX_FLAGS="-I<libusb_include_dir> -I<libftdi1_include_dir>"
You may also need to add this if you see link errors between ``libusb`` and ``pthread``:

.. code-block:: bash
-DLINK_CMAKE_THREADS=ON
By default, ``libgpiod`` support is enabled
If you don't want this option, use:

.. code-block:: bash
-DENABLE_LIBGPIOD=OFF
Additionaly you have to install ``libgpiod``

To build the app:

.. code-block:: bash
git clone https://github.com/trabucayre/openFPGALoader
cd openFPGALoader
mkdir build
cd build
cmake .. # add -DBUILD_STATIC=ON to build a static version
# add -DENABLE_UDEV=OFF to disable udev support and -d /dev/xxx
# add -DENABLE_CMSISDAP=OFF to disable CMSIS DAP support
cmake --build .
# or
make -j$(nproc)
To install

.. code-block:: bash
$ sudo make install
The default install path is ``/usr/local``, to change it, use ``-DCMAKE_INSTALL_PREFIX=myInstallDir`` in cmake invokation.

Udev rules
----------

By default, users have no access to converters.
A rule file (:ghsrc:`99-openfpgaloader.rules <99-openfpgaloader.rules>`) for ``udev`` is provided at the root directory
of this repository.
These rules set access right and group (``plugdev``) when a converter is plugged.

.. code-block:: bash
sudo cp 99-openfpgaloader.rules /etc/udev/rules.d/
sudo udevadm control --reload-rules && sudo udevadm trigger # force udev to take new rule
sudo usermod -a $USER -G plugdev # add user to plugdev group
After that you need to unplug and replug your device.

.. HINT::
``usermod`` is used to add ``$USER`` as a member of ``plugdev`` group.
However this update is not taken into account immediately: it's required to
logout from current session and login again.
Check, by using ``id $USER``, if ``plugdev`` is mentioned after ``groups=``.
An alternate (and temporary) solution is to use ``sudo - $USER`` to have
your user seen as a member of ``plugdev`` group (works only for the current terminal).

macOS
=====

openFPGALoader is available as a `Homebrew <https://brew.sh>`__ formula:

.. code-block:: bash
brew install openfpgaloader
Alternatively, if you want to build it by hand:

.. code-block:: bash
brew install --only-dependencies openfpgaloader
brew install cmake pkg-config zlib gzip
git clone https://github.com/trabucayre/openFPGALoader
cd openFPGALoader
mkdir build
cd build
cmake ..
make -j
Windows
=======

Common
======

Bitstreams for *XC2C (coolrunner-II)* needs to be remapped using ``.map`` shipped with *ISE*.
*ISE* path is set at configure time using:

.. code-block:: bash
-DISE_PATH=/somewhere/Xilinx/ISE_VERS/
default: ``/opt/Xilinx/14.7``.
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