config: Warn Beaglebone PRU users that pinmux settings are not updated

The Beaglebone hardware prevents the PRU from updating the pinmux
board settings.  As a result, the PRU can't directly change the pin
direction or change the pullup resistor settings.  Warn the Beaglebone
users of this limitation.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
This commit is contained in:
Kevin O'Connor 2017-10-25 11:01:36 -04:00
parent 3d78a99758
commit f5c0148665
2 changed files with 12 additions and 0 deletions

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@ -3,6 +3,11 @@
# THIS FILE HAS NOT BEEN TESTED - PROCEED WITH CAUTION!
# NOTE: Klipper does not alter the input/output state of the
# Beaglebone pins and it does not control their pull-up resistors. In
# order to set the pin state one must use a "device tree overlay" or
# use the config-pin program.
# See the example.cfg file for a description of available parameters.
[stepper_x]

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@ -4,6 +4,13 @@
# install the micro-controller code a second time for a "Linux
# process".
# NOTE: Klipper does not alter the input/output state of the
# Beaglebone pins and it does not control their pull-up resistors.
# Typically the correct settings are automatically applied when the
# Beaglebone detects the Replicape board, but if changes are needed
# they must be specified in a "device tree overlay" or via the
# config-pin program.
# See the example.cfg file for a description of available parameters.
[stepper_x]