# This file is Copyright (c) 2019 Michael Betz # License: BSD from litex.build.generic_platform import Pins, IOStandard, Subsignal from litex.build.xilinx import XilinxPlatform, VivadoProgrammer # IOs ---------------------------------------------------------------------------------------------- _io = [ # Clk / Rst ("clk125", 0, Pins("H16"), IOStandard("LVCMOS33")), # Leds ("user_led", 0, Pins("R14"), IOStandard("LVCMOS33")), ("user_led", 1, Pins("P14"), IOStandard("LVCMOS33")), ("user_led", 2, Pins("N16"), IOStandard("LVCMOS33")), ("user_led", 3, Pins("M14"), IOStandard("LVCMOS33")), ("rgb_led", 0, Subsignal("r", Pins("N15")), Subsignal("g", Pins("G17")), Subsignal("b", Pins("L15")), IOStandard("LVCMOS33"), ), ("rgb_led", 1, Subsignal("r", Pins("M15")), Subsignal("g", Pins("L14")), Subsignal("b", Pins("G14")), IOStandard("LVCMOS33"), ), # Switches ("user_sw", 0, Pins("M20"), IOStandard("LVCMOS33")), ("user_sw", 1, Pins("M19"), IOStandard("LVCMOS33")), # Buttons ("user_btn", 0, Pins("D19"), IOStandard("LVCMOS33")), ("user_btn", 1, Pins("D20"), IOStandard("LVCMOS33")), ("user_btn", 2, Pins("L20"), IOStandard("LVCMOS33")), ("user_btn", 3, Pins("L19"), IOStandard("LVCMOS33")), # Serial (ust to make CI pass) # Unfortunately the only USB UART is hard-wired to the ARM CPU ("serial", 0, Subsignal("tx", Pins("Y18")), Subsignal("rx", Pins("Y19")), IOStandard("LVCMOS33"), ), # SPI ("spi", 0, Subsignal("clk", Pins("H15")), Subsignal("cs_n", Pins("F16")), Subsignal("mosi", Pins("T12")), Subsignal("miso", Pins("W15")), IOStandard("LVCMOS33"), ), # I2C ("i2c", 0, Subsignal("scl", Pins("P16")), Subsignal("sda", Pins("P15")), IOStandard("LVCMOS33"), ), # Audio ("audio", 0, Subsignal("pwm", Pins("R18")), # FIXME Subsignal("sd", Pins("T17")), # FIXME IOStandard("LVCMOS33"), ), # HDMI In ("hdmi_in", 0, Subsignal("clk_p", Pins("H17"), IOStandard("TMDS_33")), Subsignal("clk_n", Pins("P19"), IOStandard("TMDS_33")), Subsignal("data0_p", Pins("V20"), IOStandard("TMDS_33")), Subsignal("data0_n", Pins("W20"), IOStandard("TMDS_33")), Subsignal("data1_p", Pins("T20"), IOStandard("TMDS_33")), Subsignal("data1_n", Pins("U20"), IOStandard("TMDS_33")), Subsignal("data2_p", Pins("N20"), IOStandard("TMDS_33")), Subsignal("data2_n", Pins("P20"), IOStandard("TMDS_33")), Subsignal("scl", Pins("U14"), IOStandard("LVCMOS33")), Subsignal("sda", Pins("U15"), IOStandard("LVCMOS33")), Subsignal("hpd_en", Pins("T19"), IOStandard("LVCMOS33")), Subsignal("cec", Pins("H17"), IOStandard("LVCMOS33")), ), # HDMI Out ("hdmi_out", 0, Subsignal("clk_p", Pins("L16"), IOStandard("TMDS_33")), Subsignal("clk_n", Pins("L17"), IOStandard("TMDS_33")), Subsignal("data0_p", Pins("K17"), IOStandard("TMDS_33")), Subsignal("data0_n", Pins("K18"), IOStandard("TMDS_33")), Subsignal("data1_p", Pins("K19"), IOStandard("TMDS_33")), Subsignal("data1_n", Pins("J19"), IOStandard("TMDS_33")), Subsignal("data2_p", Pins("J18"), IOStandard("TMDS_33")), Subsignal("data2_n", Pins("H18"), IOStandard("TMDS_33")), Subsignal("scl", Pins("M17"), IOStandard("LVCMOS33")), Subsignal("sda", Pins("M18"), IOStandard("LVCMOS33")), Subsignal("cec", Pins("G15"), IOStandard("LVCMOS33")), Subsignal("hdp", Pins("R19"), IOStandard("LVCMOS33")), ), # PS7 ("ps7_clk", 0, Pins(1)), ("ps7_porb", 0, Pins(1)), ("ps7_srstb", 0, Pins(1)), ("ps7_mio", 0, Pins(54)), ("ps7_ddram", 0, Subsignal("addr", Pins(15)), Subsignal("ba", Pins(3)), Subsignal("cas_n", Pins(1)), Subsignal("ck_n", Pins(1)), Subsignal("ck_p", Pins(1)), Subsignal("cke", Pins(1)), Subsignal("cs_n", Pins(1)), Subsignal("dm", Pins(4)), Subsignal("dq", Pins(32)), Subsignal("dqs_n", Pins(4)), Subsignal("dqs_p", Pins(4)), Subsignal("odt", Pins(1)), Subsignal("ras_n", Pins(1)), Subsignal("reset_n", Pins(1)), Subsignal("we_n", Pins(1)), Subsignal("vrn", Pins(1)), Subsignal("vrp", Pins(1)), ), ] # Connectors --------------------------------------------------------------------------------------- _connectors = [ # access a pin with `pmoda:N`, where N is: # N: 0 1 2 3 4 5 6 7 # Pin: 1 2 3 4 7 8 9 10 # Bank 13 ("pmoda", "Y18 Y19 Y16 Y17 U18 U19 W18 W19"), ("pmodb", "W14 Y14 T11 T10 V16 W16 V12 W13"), ("ck_io", { "ck_ioa" : "Y13", # Outer Digital Header "ck_io0" : "T14", "ck_io1" : "U12", "ck_io2" : "U13", "ck_io3" : "V13", "ck_io4" : "V15", "ck_io5" : "T15", "ck_io6" : "R16", "ck_io7" : "U17", "ck_io8" : "V17", "ck_io9" : "V18", "ck_io10" : "T16", "ck_io11" : "R17", "ck_io12" : "P18", "ck_io13" : "N17", # Inner Digital Header # Only for Arty Z7 20 "ck_io26" : "U5", "ck_io27" : "V5", "ck_io28" : "V6", "ck_io29" : "U7", "ck_io30" : "V7", "ck_io31" : "U8", "ck_io32" : "V8", "ck_io33" : "V10", "ck_io34" : "W10", "ck_io35" : "W6", "ck_io36" : "Y6", "ck_io37" : "Y7", "ck_io38" : "W8", "ck_io39" : "Y8", "ck_io40" : "W9", "ck_io41" : "Y9", # Outer Analog Header as Digital IO # Only for Arty Z7 20 "ck_a0" : "Y11", "ck_a1" : "Y12", "ck_a2" : "W11", "ck_a3" : "V11", "ck_a4" : "T5", "ck_a5" : "U10", # Inner Analog Header as Digital IO "ck_a6" : "F19", "ck_a7" : "F20", "ck_a8" : "C20", "ck_a9" : "B20", "ck_a10" : "B19", "ck_a11" : "A20", }), ("XADC", { # Outer Analog Header "vaux1_p" : "E17", "vaux1_n" : "B18", "vaux9_p" : "E18", "vaux9_n" : "E19", "vaux6_p" : "K14", "vaux6_n" : "J14", "vaux15_p" : "K16", "vaux15_n" : "J16", "vaux5_p" : "J20", "vaux5_n" : "H20", "vaux13_p" : "G19", "vaux13_n" : "G20", # Inner Analog Header "vaux12_p" : "F19", "vaux12_n" : "F20", "vaux0_p" : "C20", "vaux0_n" : "B20", "vaux8_p" : "B19", "vaux8_n" : "A19", }) ] # Platform ----------------------------------------------------------------------------------------- class Platform(XilinxPlatform): default_clk_name = "clk125" default_clk_period = 1e9/125e6 def __init__(self, variant="z7-20", toolchain="vivado"): device = { "z7-10": "xc7z010clg400-1", "z7-20": "xc7z020clg400-1" }[variant] self.board = { "z7-10": "arty_z7_10", "z7-20": "arty_z7_20" }[variant] XilinxPlatform.__init__(self, device, _io, _connectors, toolchain=toolchain) def create_programmer(self): return VivadoProgrammer() def do_finalize(self, fragment): XilinxPlatform.do_finalize(self, fragment) self.add_period_constraint(self.lookup_request("clk125", loose=True), 1e9/125e6)