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coredevice.spi: kernel invariants and style

This commit is contained in:
Robert Jördens 2017-04-07 23:45:46 +02:00
parent 555b3c38c1
commit 0838981bed
1 changed files with 6 additions and 1 deletions
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7
artiq/coredevice/spi.py
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@ -56,9 +56,14 @@ class SPIMaster:
:param channel: RTIO channel number of the SPI bus to control. :param channel: RTIO channel number of the SPI bus to control.
""" """
kernel_invariants = {"core", "ref_period_mu", "channel"}
def __init__(self, dmgr, channel, core_device="core"): def __init__(self, dmgr, channel, core_device="core"):
self.core = dmgr.get(core_device) self.core = dmgr.get(core_device)
self.ref_period_mu = self.core.seconds_to_mu(self.core.coarse_ref_period) self.ref_period_mu = self.core.seconds_to_mu(
self.core.coarse_ref_period)
assert self.ref_period_mu == self.core.ref_multiplier
self.channel = channel self.channel = channel
self.write_period_mu = numpy.int64(0) self.write_period_mu = numpy.int64(0)
self.read_period_mu = numpy.int64(0) self.read_period_mu = numpy.int64(0)