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docs: Update documentation to note use of /dev/serial/by-path/

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When using multiple micro-controllers it may be necessary to use an id
from /dev/serial/by-path/ instead of /dev/serial/by-id/.  Also,
emphasize that in config/example-multi-mcu.cfg.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
This commit is contained in:
Kevin O'Connor
2018-06-01 17:18:12 -04:00
parent 404cd376b5
commit 2c4ca88887
2 changed files with 10 additions and 6 deletions
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6
config/example-multi-mcu.cfg
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@@ -9,17 +9,17 @@
# micro-controllers on the printer. Typically, both the X and Y axes
# are connected to the main micro-controller.
[mcu]
serial: /dev/ttyACM0
serial: /dev/serial/by-path/platform-3f980000.usb-usb-0:1.2:1.0-port0
pin_map: arduino
# The "zboard" micro-controller will be used to control the Z axis.
[mcu zboard]
serial: /dev/ttyACM1
serial: /dev/serial/by-path/platform-3f980000.usb-usb-0:1.3:1.0-port0
pin_map: arduino
# The "auxboard" micro-controller will be used to control the heaters.
[mcu auxboard]
serial: /dev/ttyACM2
serial: /dev/serial/by-path/platform-3f980000.usb-usb-0:1.4:1.0-port0
pin_map: arduino
[stepper_x]