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kasli_tester: calibrate Urukul synchronization and write to EEPROM

This commit is contained in:
Sebastien Bourdeauducq 2019-03-13 15:36:05 +08:00
parent 346299e7f8
commit e504262b67
1 changed files with 25 additions and 0 deletions
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25
artiq/examples/kasli_basic/repository/kasli_tester.py
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@ -184,6 +184,14 @@ class KasliTester(EnvExperiment):
self.core.break_realtime() self.core.break_realtime()
cpld.init() cpld.init()
@kernel
def calibrate_urukul(self, channel):
self.core.break_realtime()
sync_delay_seed, _ = channel.tune_sync_delay()
self.core.break_realtime()
io_update_delay = channel.tune_io_update_delay()
return sync_delay_seed, io_update_delay
@kernel @kernel
def setup_urukul(self, channel, frequency): def setup_urukul(self, channel, frequency):
self.core.break_realtime() self.core.break_realtime()
@ -214,6 +222,23 @@ class KasliTester(EnvExperiment):
self.init_urukul(cpld) self.init_urukul(cpld)
print("...done") print("...done")
print("Calibrating inter-device synchronization...")
for channel_name, channel_dev in self.urukuls:
if channel_dev.sync_delay_seed_eeprom is None and channel_dev.io_update_delay_eeprom is None:
print("{}\tno synchronization".format(channel_name))
elif channel_dev.sync_delay_seed_eeprom is not channel_dev.io_update_delay_eeprom:
print("{}\tunsupported EEPROM configuration".format(channel_name))
elif channel_dev.sync_delay_seed_offset != channel_dev.io_update_delay_offset:
print("{}\tunsupported EEPROM offsets".format(channel_name))
else:
eeprom = channel_dev.sync_delay_seed_eeprom
offset = channel_dev.sync_delay_seed_offset
sync_delay_seed, io_update_delay = self.calibrate_urukul(channel_dev)
print("{}\t{} {}".format(channel_name, sync_delay_seed, io_update_delay))
eeprom_word = (sync_delay_seed << 24) | (io_update_delay << 16)
eeprom.write_i32(offset, eeprom_word)
print("...done")
print("Frequencies:") print("Frequencies:")
for card_n, channels in enumerate(chunker(self.urukuls, 4)): for card_n, channels in enumerate(chunker(self.urukuls, 4)):
for channel_n, (channel_name, channel_dev) in enumerate(channels): for channel_n, (channel_name, channel_dev) in enumerate(channels):