Used to demonstrates how to easily create baremetal apps, boot to it with LiteX and
also ease litex_term testing.
To build it: export BUILD_DIR=xxyy/litex/litex/boards/targets/build/arty && make
To load it: lxterm /dev/ttyUSB1 --kernel=demo.bin
--============== Boot ==================--
Booting from serial...
Press Q or ESC to abort boot completely.
sL5DdSMmkekro
[LXTERM] Received firmware download request from the device.
[LXTERM] Uploading demo.bin to 0x40000000 (9264 bytes)...
[LXTERM] Upload complete (9.8KB/s).
[LXTERM] Booting the device.
[LXTERM] Done.
Executing booted program at 0x40000000
--============= Liftoff! ===============--
LiteX minimal demo app built Dec 10 2020 17:13:02
Available commands:
help - Show this command
reboot - Reboot CPU
led - Led demo
donut - Spinning Donut demo
litex-demo-app> led
Led demo...
Counter mode...
Shift mode...
Dance mode...
litex-demo-app> donut
Donut demo...
$$$$$@@@@@
$##########$$$$$$$$
###*!!!!!!!!!***##$$$$$$
***!!====;;;;===!!**###$$$$#
**!===;;;:::::;:===!!**####$##
!*!!==;;:~-,,.,-~::;;=!!**#######!
!!!!=;:~-,.......-~::==!!***#####*
!!!!==;~~-.........,-:;==!!***###**!
!**!!=;:~-... ..-:;=!!!********!
;!*#####*!!;. ~:;==!!!******!!=
:!*###$$$$#*! :;==!!!!!****!!!=;
~=!*#$$$@@@$$##!!!!!!!!!!!!****!!!!=;
;=!*#$$$@@@@$$#*******!*!!*!!!!!==;~
-;!*###$$$$$$$###******!!!!!!!===;~
-;!!*####$#####******!!!!!!==;;:-
,:=!!!!**#**#***!!!!!!!====;:~,
-:==!!!*!!*!!!!!!!===;;;:~-
.~:;;========;=;;:::~-,
.--~~::::~:~~--,.
litex-demo-app>
should have no impact on normal operation, the path is
only for registering addresses that are correlated with
ECC errors as reported by the OPI device.
Restrict the clk/cmd scan to 1/2 tCK since the full scan is not required
and in some cases can compromise the calibration with the wrong best clk/cmd
value selection.
This should also allow using cmd_latency=0 in all cases.
To improve human readability and enable automatic validation, the tuples
in "reg" properties should be grouped using angle brackets.
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Make indentation of the generated DTS more consistent, by always using 8
spaces (no TABs), and aligning continued lines.
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
sfl_frame (in sfl.h) already had a payload size of 255.
This should give about a 10% speed gain due to reduced overhead. 8 bytes
of header per 251 bytes sent, as opposed to 8 bytes of header per 60
bytes sent
User can now only use set_ps7 and provides the .xci file, preset file or/and additional configuration:
To use a .xci file, in the design do:
self.cpu.set_ps7(xci="ps7.xci")
To use a preset:
self.cpu.set_ps7(preset="preset_name")
To use a config dict:
self.cpu.set_ps7(name="ps7_name", config={"param0": "0", "param1": "1"})
It's also possible to use preset and then pass and additionnal config dict:
self.cpu.set_ps7(preset="preset_name")
self.cpu.add_ps7_config({"param0": "0", "param1": "1"})
or all at once:
self.cpu.set_ps7(preset="preset_name", config={"param0": "0", "param1": "1"})
enjoy-digital
Samuel Lindemer
bunnie
Stéphane Gourichon
Ilia Sergachev
Geert Uytterhoeven
David Shah
David Lattimore
Gwenhael Goavec-Merou
Gabriel Somlo