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Improved error for missing scope; also make url parameter optional again

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Jonathan Hogg
2018-09-06 10:49:45 +01:00
parent caacfe37fc
commit b6f4551208
1 changed files with 6 additions and 3 deletions
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7
scope.py
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@ -37,10 +37,13 @@ class Scope(vm.VirtualMachine):
f"scale={self.scale:.3f}V offset={self.offset:.3f}V safe_low={self.safe_low:.2f}V safe_high={self.safe_high:.2f}V "
f"ab_offset={self.ab_offset*1000:.1f}mV")
async def connect(self, url):
async def connect(self, url=None):
if url is None:
port = next(streams.SerialStream.ports_matching(vid=0x0403, pid=0x6001))
for port in streams.SerialStream.ports_matching(vid=0x0403, pid=0x6001):
url = f'file:{port.device}'
break
else:
raise RuntimeError("No matching serial device found")
LOG.info(f"Connecting to scope at {url}")
self.close()
parts = urlparse(url, scheme='file')