qmtech altera boards: sdram io properties for more speed
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@ -42,8 +42,13 @@ _io = [
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Subsignal("we_n", Pins("P6")),
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Subsignal("dq", Pins(
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"K5 L3 L4 K6 N3 M6 P3 N5",
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"N2 N1 L1 L2 K1 K2 J1 J2")),
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"N2 N1 L1 L2 K1 K2 J1 J2"),
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Misc("FAST_OUTPUT_ENABLE_REGISTER ON"),
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Misc("FAST_INPUT_REGISTER ON")),
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Subsignal("dm", Pins("N6 P1")),
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Misc("CURRENT_STRENGTH_NEW \"MAXIMUM CURRENT\""),
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Misc("FAST_OUTPUT_REGISTER ON"),
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Misc("ALLOW_SYNCH_CTRL_USAGE OFF"),
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IOStandard("3.3-V LVTTL")
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),
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]
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@ -42,8 +42,13 @@ _io = [
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Subsignal("we_n", Pins("W9")),
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Subsignal("dq", Pins(
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"AA12 Y11 AA10 AB10 Y10 AA9 AB8 AA8",
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" U10 T10 U11 R12 U12 P12 R10 R11")),
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" U10 T10 U11 R12 U12 P12 R10 R11"),
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Misc("FAST_OUTPUT_ENABLE_REGISTER ON"),
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Misc("FAST_INPUT_REGISTER ON")),
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Subsignal("dm", Pins("AB7 V10")),
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Misc("CURRENT_STRENGTH_NEW \"MAXIMUM CURRENT\""),
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Misc("FAST_OUTPUT_REGISTER ON"),
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Misc("ALLOW_SYNCH_CTRL_USAGE OFF"),
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IOStandard("3.3-V LVTTL")
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),
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]
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@ -44,8 +44,13 @@ _io = [
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Subsignal("we_n", Pins("U20")),
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Subsignal("dq", Pins(
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"AA22 AB22 Y22 Y21 W22 W21 V21 U22 M21 M22 T22 R21 R22 P22 N20 N21 ",
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"K22 K21 J22 J21 H21 G22 G21 F22 E22 E20 D22 D21 C21 B22 A22 B21")),
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"K22 K21 J22 J21 H21 G22 G21 F22 E22 E20 D22 D21 C21 B22 A22 B21"),
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Misc("FAST_OUTPUT_ENABLE_REGISTER ON"),
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Misc("FAST_INPUT_REGISTER ON")),
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Subsignal("dm", Pins("U21 L22 K20 E21")),
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Misc("CURRENT_STRENGTH_NEW \"MAXIMUM CURRENT\""),
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Misc("FAST_OUTPUT_REGISTER ON"),
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Misc("ALLOW_SYNCH_CTRL_USAGE OFF"),
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IOStandard("3.3-V LVCMOS")
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),
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]
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@ -43,8 +43,13 @@ _io = [
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Subsignal("we_n", Pins("AB4")),
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Subsignal("dq", Pins(
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"AA10 AB9 AA9 AB8 AA8 AB7 AA7 AB5",
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"Y7 W8 Y8 V9 V10 Y10 W10 V11")),
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"Y7 W8 Y8 V9 V10 Y10 W10 V11"),
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Misc("FAST_OUTPUT_ENABLE_REGISTER ON"),
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Misc("FAST_INPUT_REGISTER ON")),
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Subsignal("dm", Pins("AA5 W7")),
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Misc("CURRENT_STRENGTH_NEW \"MAXIMUM CURRENT\""),
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Misc("FAST_OUTPUT_REGISTER ON"),
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Misc("ALLOW_SYNCH_CTRL_USAGE OFF"),
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IOStandard("3.3-V LVTTL")
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),
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]
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@ -43,8 +43,13 @@ _io = [
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Subsignal("we_n", Pins("G25")),
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Subsignal("dq", Pins(
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"B25 B26 C25 C26 D25 D26 E25 E26",
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"H23 G24 G22 F24 F23 E24 D24 C24")),
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"H23 G24 G22 F24 F23 E24 D24 C24"),
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Misc("FAST_OUTPUT_ENABLE_REGISTER ON"),
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Misc("FAST_INPUT_REGISTER ON")),
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Subsignal("dm", Pins("F26 H24")),
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Misc("CURRENT_STRENGTH_NEW \"MAXIMUM CURRENT\""),
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Misc("FAST_OUTPUT_REGISTER ON"),
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Misc("ALLOW_SYNCH_CTRL_USAGE OFF"),
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IOStandard("3.3-V LVTTL")
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),
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]
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@ -75,7 +75,7 @@ class _CRG(LiteXModule):
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# BaseSoC ------------------------------------------------------------------------------------------
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class BaseSoC(SoCCore):
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def __init__(self, sys_clk_freq=80e6, with_daughterboard=False,
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def __init__(self, sys_clk_freq=95e6, with_daughterboard=False,
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with_ethernet = False,
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with_etherbone = False,
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eth_ip = "192.168.1.50",
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@ -136,7 +136,7 @@ class BaseSoC(SoCCore):
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def main():
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from litex.build.parser import LiteXArgumentParser
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parser = LiteXArgumentParser(platform=qmtech_ep4cgx150.Platform, description="LiteX SoC on QMTECH EP4CE15.")
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parser.add_target_argument("--sys-clk-freq", default=80e6, type=float, help="System clock frequency.")
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parser.add_target_argument("--sys-clk-freq", default=90e6, type=float, help="System clock frequency.")
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parser.add_target_argument("--sdram-rate", default="1:1", help="SDRAM Rate (1:1 Full Rate or 1:2 Half Rate).")
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parser.add_target_argument("--with-daughterboard", action="store_true", help="Board plugged into the QMTech daughterboard.")
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ethopts = parser.target_group.add_mutually_exclusive_group()
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