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White Rabbit Calibration
Commit de071a44 authored by Peter Jansweijer's avatar Peter Jansweijer
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Using reference measurement (same setup witouht long fiber) there is no need for… 

Using reference measurement (same setup witouht long fiber) there is no need for pre-initialized hardware delays
parent db6f8d5e
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sw/insitu_alpha/wr_serial.py
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......@@ -286,12 +286,19 @@ if __name__ == "__main__":
measurements = args.measurements
# Some constants (for now)
# scan from itu channel start to stop and skipt he channel that is used
# scan from itu channel start to stop and skip the channel that is used
# for the return channel. "itu_skip_width" can be made larger than 1
# in case the dwdm filters are wider than just the return channel
# Step size of the scan is defined by "itu_channel_increment"
fixed_delay_mst=int(328182) # Master (dTx + dRx) [ps]
fixed_delay_slv=int(327963) # Slave (dTx + dRx) [ps]
#fixed_delay_mst=int(328182) # Master (dTx + dRx) [ps]
#fixed_delay_slv=int(327963) # Slave (dTx + dRx) [ps]
# A reference measurement will be give the CRTT's for a system without a long fiber.
# This reference measurement will be subtracted from the CRTT measurements for a long fiber.
# In this way, any system typical hardware delays are cancelled.
# Initialize all hardware delays to 0.
fixed_delay_mst=int(0) # Master (dTx + dRx) [ps]
fixed_delay_slv=int(0) # Slave (dTx + dRx) [ps]
master_is_switch = False # If the master is a WR switch then the restart sequence is different from CLB or SPEC
master_has_tunable = True # detrmines wether the master or the slave has the tunable SFP (due to sfp functions needed
# this only works when master is a CLB or SPEC)
......
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