litex-boards/litex_boards/platforms/seeedstudio_spartan_edge_ac...

119 lines
3.6 KiB
Python

#
# This file is part of LiteX-Boards.
#
# Copyright (c) 2022 Primesh Pinto <primeshp@gmailcom>
# SPDX-License-Identifier: BSD-2-Clause
from litex.build.generic_platform import *
from litex.build.xilinx import Xilinx7SeriesPlatform
from litex.build.openocd import OpenOCD
# IOs ----------------------------------------------------------------------------------------------
_io = [
# Clk / Rst
("clk100", 0, Pins("H4"), IOStandard("LVCMOS33")),
("rst_n", 0, Pins("D14"), IOStandard("LVCMOS33")),
# Leds
("user_led", 0, Pins("J1"), IOStandard("LVCMOS33")), # Green.
("user_led", 1, Pins("A13"), IOStandard("LVCMOS33")), # Red.
# RGB Leds (2 X SK6805 Leds)
("rgb", 0, Pins("N11"),IOStandard("LVCMOS33")),
# Buttons
("user_btn", 0, Pins("C3"), IOStandard("LVCMOS33")),
("user_btn", 1, Pins("M4"), IOStandard("LVCMOS33")),
# Mini HDMI
("hdmi", 0,
Subsignal("clk_p", Pins("G4"),IOStandard("LVCMOS33")),
Subsignal("clk_n", Pins("F4"),IOStandard("LVCMOS33")),
Subsignal("data0_p", Pins("G1"),IOStandard("LVCMOS33")),
Subsignal("data0_n", Pins("F1"),IOStandard("LVCMOS33")),
Subsignal("data1_p", Pins("E2"),IOStandard("LVCMOS33")),
Subsignal("data1_n", Pins("D2"),IOStandard("LVCMOS33")),
Subsignal("data2_p", Pins("D1"),IOStandard("LVCMOS33")),
Subsignal("data2_n", Pins("C1"),IOStandard("LVCMOS33")),
Subsignal("scl", Pins("F3"),IOStandard("LVCMOS33")),
Subsignal("sda", Pins("F2"),IOStandard("LVCMOS33")),
Subsignal("hpd", Pins("D4"),IOStandard("LVCMOS33")),
Subsignal("cec", Pins("E4"),IOStandard("LVCMOS33"))
),
# MIPI (Untested)
("mipi", 0,
Subsignal("clkp", Pins("G11"), IOStandard("MIPI_DPHY")),
Subsignal("clkn", Pins("F11"), IOStandard("LVCMOS12H")),
Subsignal("dp", Pins("J11 P10"), IOStandard("MIPI_DPHY")),
Subsignal("dn", Pins("J12 P11"), IOStandard("LVCMOS12H")),
),
]
# Connectors ---------------------------------------------------------------------------------------
_connectors = [
("j10", {
"j10_0" : "N14",
"j10_1" : "M14",
"j10_2" : "C4",
"j10_3" : "B13",
"j10_4" : "N10",
"j10_5" : "M10",
"j10_6" : "B14",
"j10_7" : "D3",
"j10_8" : "P5",
"j10_9" : "E11",
}
),
("digital_d2",{
"d2_0" : "A10",
"d2_1" : "B6",
}),
("i2c", "P12 P13"), # SCL, SDA
("ar_io", {
# Outer Digital Header
"d0" : "A12",
"d1" : "C12",
"d2" : "A10",
"d3" : "B6",
"d4" : "A5",
"d5" : "B5",
"d6" : "A4",
"d7" : "A3",
"d8" : "B3",
"d9" : "A2",
"d10" : "B2",
"d11" : "B1",
"d12" : "H1",
"d13" : "H2",
# Outer Analog Header as Digital IO
"a0" : "F5",
"a1" : "D8",
"a2" : "C7",
"a3" : "E7",
"a4" : "D7",
"a5" : "D5",
} )
]
# Platform -----------------------------------------------------------------------------------------
class Platform(Xilinx7SeriesPlatform):
default_clk_name = "clk100"
default_clk_period = 1e9/100e6
def __init__(self, toolchain="vivado"):
Xilinx7SeriesPlatform.__init__(self, "xc7s15-ftgb196", _io, _connectors, toolchain=toolchain)
def do_finalize(self, fragment):
Xilinx7SeriesPlatform.do_finalize(self, fragment)
self.add_period_constraint(self.lookup_request("clk100", loose=True), 1e9/100e6)