# # This file is part of LiteX-Boards. # # Copyright (c) 2018-2019 Florent Kermarrec # SPDX-License-Identifier: BSD-2-Clause from litex.build.generic_platform import * from litex.build.lattice import LatticePlatform from litex.build.lattice.programmer import UJProg # IOs ---------------------------------------------------------------------------------------------- _io_common = [ # Clk / Rst ("clk25", 0, Pins("G2"), IOStandard("LVCMOS33")), ("rst", 0, Pins("R1"), IOStandard("LVCMOS33")), # Buttons ("user_btn", 0, Pins( "D6"), IOStandard("LVCMOS33"), Misc("PULLMODE=DOWN")), # PWR ("user_btn", 1, Pins( "R1"), IOStandard("LVCMOS33"), Misc("PULLMODE=DOWN")), # F1 ("user_btn", 2, Pins( "T1"), IOStandard("LVCMOS33"), Misc("PULLMODE=DOWN")), # F2 ("user_btn", 3, Pins("R18"), IOStandard("LVCMOS33"), Misc("PULLMODE=DOWN")), # UP ("user_btn", 4, Pins( "V1"), IOStandard("LVCMOS33"), Misc("PULLMODE=DOWN")), # DOWN ("user_btn", 5, Pins( "U1"), IOStandard("LVCMOS33"), Misc("PULLMODE=DOWN")), # LEFT ("user_btn", 6, Pins("H16"), IOStandard("LVCMOS33"), Misc("PULLMODE=DOWN")), # RIGHT # Leds ("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", 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 ("serial", 0, Subsignal("tx", Pins("L4"), IOStandard("LVCMOS33")), Subsignal("rx", Pins("M1"), IOStandard("LVCMOS33")) ), # SDR SDRAM ("sdram_clock", 0, Pins("F19"), 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("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"), ), # GPIOs ("gpio", 0, Subsignal("p", Pins("B11")), Subsignal("n", Pins("C11")), IOStandard("LVCMOS33") ), ("gpio", 1, Subsignal("p", Pins("A10")), Subsignal("n", Pins("A11")), IOStandard("LVCMOS33") ), ("gpio", 2, Subsignal("p", Pins("A9")), Subsignal("n", Pins("B10")), IOStandard("LVCMOS33") ), ("gpio", 3, Subsignal("p", Pins("B9")), Subsignal("n", Pins("C10")), IOStandard("LVCMOS33") ), # USB ("usb", 0, Subsignal("d_p", Pins("D15")), Subsignal("d_n", Pins("E15")), Subsignal("pullup", Pins("B12 C12")), IOStandard("LVCMOS33") ), # SPIFlash ("spiflash", 0, Subsignal("cs_n", Pins("R2")), Subsignal("miso", Pins("V2")), Subsignal("mosi", Pins("W2")), Subsignal("wp", Pins("Y2")), Subsignal("hold", Pins("W1")), IOStandard("LVCMOS33") ), ("spiflash4x", 0, Subsignal("cs_n", Pins("R2")), Subsignal("dq", Pins("W2", "V2", "Y2", "W1")), IOStandard("LVCMOS33") ), # OLED ("oled_spi", 0, Subsignal("clk", Pins("P4")), Subsignal("mosi", Pins("P3")), IOStandard("LVCMOS33"), ), ("oled_ctl", 0, Subsignal("dc", Pins("P1")), Subsignal("resn", Pins("P2")), Subsignal("csn", Pins("N2")), IOStandard("LVCMOS33"), ), # Others ("ext0p", 0, Pins("B11"), IOStandard("LVCMOS33")), ("ext1p", 0, Pins("A10"), IOStandard("LVCMOS33")), ] _io_1_7 = [ # SDCard ("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")), Misc("SLEWRATE=FAST"), IOStandard("LVCMOS33"), ), ("sdcard", 0, Subsignal("clk", Pins("J1")), Subsignal("cmd", Pins("J3"), Misc("PULLMODE=UP")), Subsignal("data", Pins("K2 K1 H2 H1"), Misc("PULLMODE=UP")), Misc("SLEWRATE=FAST"), IOStandard("LVCMOS33"), ), # GPDI ("gpdi", 0, Subsignal("clk_p", Pins("A17"), IOStandard("LVCMOS33D"), Misc("DRIVE=4")), #Subsignal("clk_n", Pins("B18"), IOStandard("LVCMOS33D"), Misc("DRIVE=4")), Subsignal("data0_p", Pins("A12"), IOStandard("LVCMOS33D"), Misc("DRIVE=4")), #Subsignal("data0_n", Pins("A13"), IOStandard("LVCMOS33D"), Misc("DRIVE=4")), Subsignal("data1_p", Pins("A14"), IOStandard("LVCMOS33D"), Misc("DRIVE=4")), #Subsignal("data1_n", Pins("C14"), IOStandard("LVCMOS33D"), Misc("DRIVE=4")), Subsignal("data2_p", Pins("A16"), IOStandard("LVCMOS33D"), Misc("DRIVE=4")), #Subsignal("data2_n", Pins("B16"), IOStandard("LVCMOS33D"), Misc("DRIVE=4")), #Subsignal("cec", Pins("A18"), IOStandard("LVCMOS33"), Misc("PULLMODE=UP")), #Subsignal("scl", Pins("E19"), IOStandard("LVCMOS33"), Misc("PULLMODE=UP")), #Subsignal("sda", Pins("B19"), IOStandard("LVCMOS33"), Misc("PULLMODE=UP")) ), # Wifi power ("wifi_gpio0", 0, Pins("L2"), IOStandard("LVCMOS33")), ] _io_2_0 = [ # SDCard ("spisdcard", 0, Subsignal("clk", Pins("H2")), Subsignal("mosi", Pins("J1"), Misc("PULLMODE=UP")), Subsignal("cs_n", Pins("K2"), Misc("PULLMODE=UP")), Subsignal("miso", Pins("J3"), Misc("PULLMODE=UP")), Misc("SLEWRATE=FAST"), IOStandard("LVCMOS33"), ), ("sdcard", 0, Subsignal("clk", Pins("H2")), Subsignal("cmd", Pins("J1"), Misc("PULLMODE=UP")), Subsignal("data", Pins("J3 H1 K1 K2"), Misc("PULLMODE=UP")), #Subsignal("cd", Pins("N5")), # Not connected #Subsignal("wp", Pins("P5")), # Not connected Misc("SLEWRATE=FAST"), IOStandard("LVCMOS33"), ), # GPDI ("gpdi", 0, Subsignal("clk_p", Pins("A17"), IOStandard("LVCMOS33D"), Misc("DRIVE=4")), #Subsignal("clk_n", Pins("B18"), IOStandard("LVCMOS33D"), Misc("DRIVE=4")), Subsignal("data0_p", Pins("A16"), IOStandard("LVCMOS33D"), Misc("DRIVE=4")), #Subsignal("data0_n", Pins("B16"), IOStandard("LVCMOS33D"), Misc("DRIVE=4")), Subsignal("data1_p", Pins("A14"), IOStandard("LVCMOS33D"), Misc("DRIVE=4")), #Subsignal("data1_n", Pins("C14"), IOStandard("LVCMOS33D"), Misc("DRIVE=4")), Subsignal("data2_p", Pins("A12"), IOStandard("LVCMOS33D"), Misc("DRIVE=4")), #Subsignal("data2_n", Pins("A13"), IOStandard("LVCMOS33D"), Misc("DRIVE=4")), #Subsignal("cec", Pins("A18"), IOStandard("LVCMOS33"), Misc("PULLMODE=UP")), #Subsignal("scl", Pins("E19"), IOStandard("LVCMOS33"), Misc("PULLMODE=UP")), #Subsignal("sda", Pins("B19"), IOStandard("LVCMOS33"), Misc("PULLMODE=UP")) ), # Wifi power ("wifi_gpio0", 0, Pins("F1"), IOStandard("LVCMOS33")), ] # Platform ----------------------------------------------------------------------------------------- class Platform(LatticePlatform): default_clk_name = "clk25" default_clk_period = 1e9/25e6 def __init__(self, device="LFE5U-45F", revision="2.0", toolchain="trellis", **kwargs): assert device in ["LFE5U-12F", "LFE5U-25F", "LFE5U-45F", "LFE5U-85F"] assert revision in ["1.7", "2.0"] _io = _io_common + {"1.7": _io_1_7, "2.0": _io_2_0}[revision] LatticePlatform.__init__(self, device + "-6BG381C", _io, toolchain=toolchain, **kwargs) def create_programmer(self): return UJProg() def do_finalize(self, fragment): LatticePlatform.do_finalize(self, fragment) self.add_period_constraint(self.lookup_request("clk25", loose=True), 1e9/25e6)