From: Florent Kermarrec Date: Thu, 9 Apr 2020 16:55:01 +0000 (+0200) Subject: boards/plarforms/ulx3s: cleanup, fix user_leds, add spisdcard, add PULLMODE/DRIVE... X-Git-Tag: 24jan2021_ls180~476 X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=3c0ba8ae62e07c143bafc3a83b9ee26f5c6b19da;p=litex.git boards/plarforms/ulx3s: cleanup, fix user_leds, add spisdcard, add PULLMODE/DRIVE on SDRAM pins. --- diff --git a/litex/boards/platforms/ulx3s.py b/litex/boards/platforms/ulx3s.py index d083a868..fe9f93cc 100644 --- a/litex/boards/platforms/ulx3s.py +++ b/litex/boards/platforms/ulx3s.py @@ -8,34 +8,54 @@ from litex.build.lattice import LatticePlatform _io = [ ("clk25", 0, Pins("G2"), IOStandard("LVCMOS33")), - ("rst", 0, Pins("R1"), IOStandard("LVCMOS33")), + ("rst", 0, Pins("R1"), IOStandard("LVCMOS33")), ("user_led", 0, Pins("B2"), IOStandard("LVCMOS33")), ("user_led", 1, Pins("C2"), IOStandard("LVCMOS33")), ("user_led", 2, Pins("C1"), IOStandard("LVCMOS33")), ("user_led", 3, Pins("D2"), IOStandard("LVCMOS33")), - ("user_led", 0, Pins("D1"), IOStandard("LVCMOS33")), - ("user_led", 1, Pins("E2"), IOStandard("LVCMOS33")), - ("user_led", 2, Pins("E1"), IOStandard("LVCMOS33")), - ("user_led", 3, Pins("H3"), IOStandard("LVCMOS33")), + ("user_led", 4, Pins("D1"), IOStandard("LVCMOS33")), + ("user_led", 5, Pins("E2"), IOStandard("LVCMOS33")), + ("user_led", 6, Pins("E1"), IOStandard("LVCMOS33")), + ("user_led", 7, Pins("H3"), IOStandard("LVCMOS33")), ("serial", 0, Subsignal("tx", Pins("L4"), IOStandard("LVCMOS33")), Subsignal("rx", Pins("M1"), IOStandard("LVCMOS33")) ), - ("sdram_clock", 0, Pins("F19"), IOStandard("LVCMOS33")), + ("spisdcard", 0, + Subsignal("clk", Pins("J1")), + Subsignal("mosi", Pins("J3"), Misc("PULLMODE=UP")), + Subsignal("cs_n", Pins("H1"), Misc("PULLMODE=UP")), + Subsignal("miso", Pins("K2"), Misc("PULLMODE=UP")), + IOStandard("LVCMOS33"), Misc("SLEWRATE=FAST") + ), + + ("sdram_clock", 0, Pins("F19"), + Misc("PULLMODE=NONE"), + Misc("DRIVE=4"), + Misc("SLEWRATE=FAST"), + IOStandard("LVCMOS33") + ), ("sdram", 0, - Subsignal("a", Pins("M20 M19 L20 L19 K20 K19 K18 J20 J19 H20 N19 G20 G19")), - Subsignal("dq", Pins("J16 L18 M18 N18 P18 T18 T17 U20 E19 D20 D19 C20 E18 F18 J18 J17")), - Subsignal("we_n", Pins("T20")), + Subsignal("a", Pins( + "M20 M19 L20 L19 K20 K19 K18 J20", + "J19 H20 N19 G20 G19")), + Subsignal("dq", Pins( + "J16 L18 M18 N18 P18 T18 T17 U20", + "E19 D20 D19 C20 E18 F18 J18 J17")), + Subsignal("we_n", Pins("T20")), Subsignal("ras_n", Pins("R20")), Subsignal("cas_n", Pins("T19")), - Subsignal("cs_n", Pins("P20")), - Subsignal("cke", Pins("F20")), - Subsignal("ba", Pins("P19 N20")), - Subsignal("dm", Pins("U19 E20")), - IOStandard("LVCMOS33"), Misc("SLEWRATE=FAST") + Subsignal("cs_n", Pins("P20")), + Subsignal("cke", Pins("F20")), + Subsignal("ba", Pins("P19 N20")), + Subsignal("dm", Pins("U19 E20")), + Misc("PULLMODE=NONE"), + Misc("DRIVE=4"), + Misc("SLEWRATE=FAST"), + IOStandard("LVCMOS33"), ), ("wifi_gpio0", 0, Pins("L2"), IOStandard("LVCMOS33")), @@ -68,7 +88,7 @@ _io = [ # Platform ----------------------------------------------------------------------------------------- class Platform(LatticePlatform): - default_clk_name = "clk25" + default_clk_name = "clk25" default_clk_period = 1e9/25e6 def __init__(self, device="LFE5U-45F", **kwargs):