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rp2040: Implement workaround for USB errata "rp2040-e5"

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The rp2040 USB may not connect after a reset.  Implementation the
recommended workaround.

Signed-off-by: Lasse Dalegaard <dalegaard@gmail.com>
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
This commit is contained in:
Kevin O'Connor 2022-06-07 11:43:19 -04:00
parent c30e5f847c
commit ea4f6d6a77
2 changed files with 105 additions and 3 deletions
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6
docs/Config_Changes.md
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@ -8,6 +8,12 @@ All dates in this document are approximate.
## Changes
20220612: The rp2040 micro-controller now has a workaround for the
"rp2040-e5" USB errata. This should make initial USB connections more
reliable. However, it may result in a change in behavior for the
gpio15 pin. It is unlikely the gpio15 behavior change will be
noticeable.
20220407: The temperature_fan `pid_integral_max` config option has
been removed (it was deprecated on 20210612).