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sayma: add comments about CPLL line rate on KU GTH

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Harry Ho 2020-12-15 18:06:02 +08:00 committed by Sebastien Bourdeauducq
parent 69cfa8e2e5
commit e79fedd67a
1 changed files with 2 additions and 0 deletions
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artiq/gateware/targets/sayma_amc.py
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@ -169,6 +169,8 @@ class SatelliteBase(MiniSoC):
# JESD204 DAC Channel Group # JESD204 DAC Channel Group
class JDCG(Module, AutoCSR): class JDCG(Module, AutoCSR):
def __init__(self, platform, sys_crg, jesd_crg, dac): def __init__(self, platform, sys_crg, jesd_crg, dac):
# Kintex Ultrascale GTH, speed grade -1C:
# CPLL linerate (D=1): 4.0 - 8.5 Gb/s
self.submodules.jesd = jesd204_tools.UltrascaleTX( self.submodules.jesd = jesd204_tools.UltrascaleTX(
platform, sys_crg, jesd_crg, dac) platform, sys_crg, jesd_crg, dac)