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doc: update DEVELOPER_NOTES.

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whitequark 2018-01-19 07:59:23 +00:00
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DEVELOPER_NOTES.rst
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@ -30,11 +30,11 @@ Minor (bugfix) releases
Sharing development boards
==========================
To avoid conflicts for development boards on the server, while using a board you must hold the corresponding lock file present in ``/run/board``. Holding the lock file grants you exclusive access to the board.
To avoid conflicts for development boards on the server, while using a board you must hold the corresponding lock file present in ``/var/boards``. Holding the lock file grants you exclusive access to the board.
To lock the KC705 for 30 minutes or until Ctrl-C is pressed:
::
flock --verbose /run/boards/kc705-1 sleep 1800
flock --verbose /var/boards/kc705-1 sleep 1800
Check that the command acquires the lock, i.e. prints something such as:
::
@ -43,28 +43,52 @@ Check that the command acquires the lock, i.e. prints something such as:
To lock the KC705 for the duration of the execution of a shell:
::
flock /run/boards/kc705-1 bash
flock /var/boards/kc705-1 bash
You may also use this script:
::
#!/bin/bash
exec flock /run/boards/$1 bash --rcfile <(cat ~/.bashrc; echo PS1=\"[$1\ lock]\ \$PS1\")
exec flock /var/boards/$1 bash --rcfile <(cat ~/.bashrc; echo PS1=\"[$1\ lock]\ \$PS1\")
If the board is already locked by another user, the ``flock`` commands above will wait for the lock to be released.
To determine which user is locking a board, use:
::
fuser -v /run/boards/kc705-1
fuser -v /var/boards/kc705-1
Selecting a development board with artiq_flash
==============================================
Use the ``bus:port`` notation::
The board lock file also contains the openocd commands for selecting the corresponding developer board:
::
artiq_flash --preinit-command "$(cat /var/boards/sayma-1)"
artiq_flash --preinit-command "ftdi_location 5:2" # Sayma 1
artiq_flash --preinit-command "ftdi_location 3:10" # Sayma 2
artiq_flash --preinit-command "ftdi_location 5:1" # Sayma 3
Using developer tools
=====================
ARTIQ ships with an ``artiq_devtool`` binary, which automates common actions arising when developing the board gateware and firmware on a machine other than the one to which the board is connected.
.. argparse::
:ref: artiq.frontend.artiq_compile.get_argparser
:prog: artiq_compile
To build and flash the firmware for ``sayma_amc_standalone`` target:
::
artiq_devtool -t sayma_amc_standalone build flash+log
To build the same target, flash it to the 3rd connected board, and forward the core device ports (1380, 1381, ...) as well as logs on the serial port:
::
artiq_devtool -t sayma_amc_standalone -b sayma-3 build flash connect
While the previous command is running, to build a new firmware and hotswap it, i.e. run without reflashing the board:
::
artiq_devtool -t sayma_amc_standalone build hotswap
While the previous command is running, to reset a board, e.g. if it became unresponsive:
::
artiq_devtool -t sayma_amc_standalone reset
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