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canbus_ids: Use 4 as the first nodeid to reduce id bitstuffing 

Starting with nodeid 4 instead of nodeid 0 can reduce bitstuffing of
the id field in common configurations.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
This commit is contained in:
Kevin O'Connor 2022-07-25 12:39:39 -04:00
parent b725d971db
commit 2293e1506f
1 changed files with 3 additions and 1 deletions
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4
klippy/extras/canbus_ids.py
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@ -4,6 +4,8 @@
# #
# This file may be distributed under the terms of the GNU GPLv3 license. # This file may be distributed under the terms of the GNU GPLv3 license.
NODEID_FIRST = 4
class PrinterCANBus: class PrinterCANBus:
def __init__(self, config): def __init__(self, config):
self.printer = config.get_printer() self.printer = config.get_printer()
@ -11,7 +13,7 @@ class PrinterCANBus:
def add_uuid(self, config, canbus_uuid, canbus_iface): def add_uuid(self, config, canbus_uuid, canbus_iface):
if canbus_uuid in self.ids: if canbus_uuid in self.ids:
raise config.error("Duplicate canbus_uuid") raise config.error("Duplicate canbus_uuid")
new_id = len(self.ids) new_id = len(self.ids) + NODEID_FIRST
self.ids[canbus_uuid] = new_id self.ids[canbus_uuid] = new_id
return new_id return new_id
def get_nodeid(self, canbus_uuid): def get_nodeid(self, canbus_uuid):