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device/thorlabs_tcube: fix port read

This commit is contained in:
Sebastien Bourdeauducq 2016-03-29 14:39:55 +08:00
parent 50888865e7
commit 3c09577ed0
1 changed files with 2 additions and 2 deletions
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4
artiq/devices/thorlabs_tcube/driver.py
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@ -193,12 +193,12 @@ class _Tcube:
await self.port.write(message.pack())
async def recv(self):
header = await self.port.read(6)
header = await self.port.read_exactly(6)
logger.debug("received header: %s", header)
data = b""
if header[4] & 0x80:
(length, ) = st.unpack("<H", header[2:4])
data = await self.port.read(length)
data = await self.port.read_exactly(length)
r = Message.unpack(header + data)
logger.debug("receiving: %s", r)
return r