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kc705: clean up clock constraints

This commit is contained in:
Sebastien Bourdeauducq 2016-10-29 21:28:01 +08:00
parent ed4d57c638
commit c656a53532
1 changed files with 1 additions and 10 deletions
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11
artiq/gateware/targets/kc705.py
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@ -146,20 +146,11 @@ class _NIST_Ions(MiniSoC, AMPSoC):
self.submodules.rtio_moninj = rtio.MonInj(rtio_channels)
self.csr_devices.append("rtio_moninj")
self.rtio.cd_rsys.clk.attr.add("keep")
self.rtio_crg.cd_rtio.clk.attr.add("keep")
self.ethphy.crg.cd_eth_rx.clk.attr.add("keep")
self.ethphy.crg.cd_eth_tx.clk.attr.add("keep")
self.platform.add_period_constraint(self.rtio.cd_rsys.clk, 8.)
self.platform.add_period_constraint(self.rtio_crg.cd_rtio.clk, 8.)
self.platform.add_period_constraint(self.ethphy.crg.cd_eth_rx.clk, 8.)
self.platform.add_period_constraint(self.ethphy.crg.cd_eth_tx.clk, 8.)
self.platform.add_false_path_constraints(
self.rtio.cd_rsys.clk,
self.rtio_crg.cd_rtio.clk,
self.ethphy.crg.cd_eth_rx.clk,
self.ethphy.crg.cd_eth_tx.clk)
self.rtio_crg.cd_rtio.clk)
self.submodules.rtio_analyzer = rtio.Analyzer(self.rtio,
self.get_native_sdram_if())