arrdem/source
1
0
Fork 0
Code Issues 11 Pull requests Projects Releases Packages Wiki Activity

Final-ish tested driver

Browse source
This commit is contained in:
Reid 'arrdem' McKenzie 2021-10-13 20:28:54 -06:00
parent 24054b4bfc
commit 0503dc2df7
1 changed files with 16 additions and 5 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

21
projects/hatctl/src/python/hatctl/driver.py
View file

@ -135,6 +135,15 @@ class ClusterCTRLDriver(object):
elif isinstance(id, Data):
return self._call(Cmd.GET_DATA, id.value)
@staticmethod
def _repack(values):
"""Pack an array of bytes back into a single value."""
acc = 0
for b in values:
acc = acc << 8
acc += b
return acc
def _write(self, id: Reg, val: int):
"""A convenient abstraction for writing a register."""
@ -204,7 +213,11 @@ class ClusterCTRLDriver(object):
def reset_all(self):
"""[Power] cycle the entire Controller."""
return self._call(Cmd.RESET)
try:
return self._call(Cmd.RESET)
except OSError:
# An OSError I/O to the reset board is somewhat expected
pass
####################################################################################################
# EEPROM management
@ -378,7 +391,7 @@ class ClusterCTRLDriver(object):
# DATA1 and DATA2 are a 16bi number that need to be reassembled.
# Note that DATA2 is the high bits.
val = self._read(Reg.DATA2) << 8 + self._read(Reg.DATA1)
val = self._repack(self._read(Reg.DATA2, 2))
type = self._read(Reg.DATA0)
if type == 0:
@ -397,7 +410,7 @@ class ClusterCTRLDriver(object):
# DATA0 is ... something expected to be 2
# DATA1 and DATA2 form a low/high 16bi number. Unit is Kelvin.
if self._call(Cmd.GET_DATA, Data.ADC_TEMP.value) == 2:
return self._read(Reg.DATA2) << 8 + self._read(Reg.DATA1)
return self._repack(self._read(Reg.DATA2, 2))
class ClusterHATDriver(ClusterCTRLDriver):
@ -409,11 +422,9 @@ class ClusterHATDriver(ClusterCTRLDriver):
def led_on(self, id: int):
"""Turn on an LED by ID."""
assert self.type is BoardType.PHAT
return self._call(Cmd.LED_EN, id)
def led_off(self, id: int):
"""Turn off an LED by ID."""
assert self.type is BoardType.PHAT
return self._call(Cmd.LED_DIS, id)