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klippy: Warn the user on common errors due to old firmware

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Check for msgproto.error and warn the user about version firmware
version mismatch.  Raise msgproto.error when extracting firmware
constants.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
This commit is contained in:
Kevin O'Connor 2017-01-09 23:50:13 -05:00
parent eebaeeff96
commit 93d3a6e1d1
3 changed files with 31 additions and 5 deletions
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12
klippy/msgproto.py
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@ -308,3 +308,15 @@ class MessageParser:
self.static_strings = data.get('static_strings', [])
self.config.update(data.get('config', {}))
self.version = data.get('version', '')
def get_constant(self, name):
try:
return self.config[name]
except KeyError:
raise error("Firmware constant '%s' not found" % (name,))
def get_constant_float(self, name):
try:
return float(self.config[name])
except ValueError:
raise error("Firmware constant '%s' not a float" % (name,))
except KeyError:
raise error("Firmware constant '%s' not found" % (name,))