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litex-boards/litex_boards/platforms/alientek_davincipro.py

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#
# This file is part of LiteX-Boards.
#
# Copyright (c) 2023 Hans Baier <hansfbaier@gmail.com>
# SPDX-License-Identifier: BSD-2-Clause
# Board product page: https://www.alientek.com/productinfo/945752.html
# Taobao item: https://item.taobao.com/item.htm?id=641238123452
# The Taobao agent I used: https://www.basetao.com/?ejATJf+gGuEbpa8IBg
from litex.build.generic_platform import *
from litex.build.xilinx import Xilinx7SeriesPlatform, VivadoProgrammer
from litex.build.openocd import OpenOCD
# IOs ----------------------------------------------------------------------------------------------
_io = [
# Clk / Rst
("clk50", 0, Pins("R4"), IOStandard("SSTL135")),
("cpu_reset", 0, Pins("U7"), IOStandard("SSTL135")),
# Leds
("user_led", 0, Pins("V9"), IOStandard("SSTL135")),
("user_led", 1, Pins("Y8"), IOStandard("SSTL135")),
("user_led", 2, Pins("Y7"), IOStandard("SSTL135")),
("user_led", 3, Pins("W7"), IOStandard("SSTL135")),
# Buttons
("user_btn", 0, Pins("T4"), IOStandard("SSTL135")),
("user_btn", 1, Pins("T3"), IOStandard("SSTL135")),
("user_btn", 2, Pins("R6"), IOStandard("SSTL135")),
("user_btn", 3, Pins("T6"), IOStandard("SSTL135")),
# Beeper
("beeper", 3, Pins("V7"), IOStandard("SSTL135")),
# Serial
("serial", 0,
Subsignal("tx", Pins("D17")),
Subsignal("rx", Pins("E14")),
IOStandard("LVCMOS33"),
),
# RS485
("rs485", 0,
Subsignal("tx", Pins("T18")),
Subsignal("rx", Pins("R18")),
IOStandard("LVCMOS33"),
),
# CAN bus
("can", 0,
Subsignal("tx", Pins("TR18")),
Subsignal("rx", Pins("AA19")),
IOStandard("LVCMOS33"),
),
# EEPROM + RTC
("i2c", 0,
Subsignal("sda", Pins("A19")),
Subsignal("scl", Pins("F13")),
IOStandard("LVCMOS33")
),
# USB FIFO
("usb_clk", 0, Pins("E19"), IOStandard("LVCMOS33")),
("usb_fifo", 0, # Can be used when FT232H's Channel is configured to ASYNC FIFO 245 mode
Subsignal("data", Pins("C17 F15 F18 E18 E21 D21 F21 E22")),
Subsignal("rxf_n", Pins("F16")),
Subsignal("txe_n", Pins("E17")),
Subsignal("rd_n", Pins("F19")),
Subsignal("wr_n", Pins("F20")),
Subsignal("siwua", Pins("G21")),
Subsignal("oe_n", Pins("D19")),
Misc("SLEW=FAST"),
Drive(8),
IOStandard("LVCMOS33"),
),
# SDCard
("spisdcard", 0,
Subsignal("cd", Pins("A18")),
Subsignal("clk", Pins("A16")),
Subsignal("mosi", Pins("A15")),
Subsignal("cs_n", Pins("A14")),
Subsignal("miso", Pins("B17")),
Misc("SLEW=FAST"),
IOStandard("LVCMOS33"),
),
("sdcard", 0,
Subsignal("data", Pins("B17 B18 A13 A14"),),
Subsignal("cmd", Pins("A15"),),
Subsignal("clk", Pins("A16")),
Subsignal("cd", Pins("A18")),
Misc("SLEW=FAST"),
IOStandard("LVCMOS33"),
),
# DDR3 SDRAM
("ddram", 0,
Subsignal("a", Pins(
"AA4 AB2 AA5 AB5 AB1 U3 W1 T1", # A0-A7
"V2 U2 Y1 W2 Y2 U1 V3"), # A8-A14
IOStandard("SSTL135")),
Subsignal("ba", Pins("AA3 Y3 Y4"), IOStandard("SSTL135")),
Subsignal("ras_n", Pins("V4"), IOStandard("SSTL135")),
Subsignal("cas_n", Pins("W4"), IOStandard("SSTL135")),
Subsignal("we_n", Pins("AA1"), IOStandard("SSTL135")),
Subsignal("cs_n", Pins("AB3"), IOStandard("SSTL135")),
Subsignal("dm", Pins("D2 G2 M2 M5"), IOStandard("SSTL135")),
Subsignal("dq", Pins(
"C2 G1 A1 F3 F1 B2 B1 E2 H3 G3 H2 H5 J1 J5 K1 H4", # D0-D15
"L4 M3 L3 J6 K3 K6 J4 L5 P1 N4 R1 N2 M6 N5 P6 P2"), # D16-D31
IOStandard("SSTL135"),
Misc("IN_TERM=UNTUNED_SPLIT_50")),
Subsignal("dqs_p", Pins("E1 K2 M1 P5"), IOStandard("DIFF_SSTL135")),
Subsignal("dqs_n", Pins("D1 J2 L1 P4"), IOStandard("DIFF_SSTL135")),
Subsignal("clk_p", Pins("R3"), IOStandard("DIFF_SSTL135")),
Subsignal("clk_n", Pins("R2"), IOStandard("DIFF_SSTL135")),
Subsignal("cke", Pins("T5"), IOStandard("SSTL135")),
Subsignal("odt", Pins("U5"), IOStandard("SSTL135")),
Subsignal("reset_n", Pins("W6"), IOStandard("SSTL135")),
Misc("SLEW=FAST"),
),
# RGMII Ethernet
("eth_clocks", 0,
Subsignal("tx", Pins("V18")),
Subsignal("rx", Pins("U20")),
IOStandard("LVCMOS33")
),
("eth", 0,
Subsignal("rst_n", Pins("N20")),
Subsignal("mdio", Pins("N22")),
Subsignal("mdc", Pins("M22")),
Subsignal("rx_ctl", Pins("AA20")),
Subsignal("rx_data", Pins("AA21 V20 U22 V22")),
Subsignal("tx_ctl", Pins("V19")),
Subsignal("tx_data", Pins("T21 U21 P19 R19")),
IOStandard("LVCMOS33")
),
("eth_clocks", 1,
Subsignal("tx", Pins("W19")),
Subsignal("rx", Pins("Y18")),
IOStandard("LVCMOS33")
),
("eth", 1,
Subsignal("rst_n", Pins("N20")),
Subsignal("mdio", Pins("N22")),
Subsignal("mdc", Pins("M20")),
Subsignal("rx_ctl", Pins("AA20")),
Subsignal("rx_data", Pins("AA21 V20 U22 V22")),
Subsignal("tx_ctl", Pins("V19")),
Subsignal("tx_data", Pins("T21 U21 P19 R19")),
IOStandard("LVCMOS33")
),
# HDMI I2C
("i2c", 1,
Subsignal("sda", Pins("N18")),
Subsignal("scl", Pins("L21")),
IOStandard("LVCMOS33")
),
# HDMI In
("adv7611", 0,
Subsignal("clk", Pins("L19")),
Subsignal("rst_n", Pins("N19")),
Subsignal("hsync_n", Pins("M22")),
Subsignal("vsync_n", Pins("M15")),
Subsignal("de_n", Pins("M21")),
Subsignal("r", Pins("M16 L16 K16 K18 K19 M13 L13 L14")), # D16-D23
Subsignal("g", Pins("L15 K13 K14 J16 J15 H15 J14 H14")), # D8-D15
Subsignal("b", Pins("H13 G13 J19 H19 G16 G15 G18 G17")), # D0-D7
IOStandard("LVCMOS33")
),
# HDMI Out
("hdmi_out", 0,
Subsignal("clk_p", Pins("J20"), IOStandard("TMDS_33")),
Subsignal("clk_n", Pins("J21"), IOStandard("TMDS_33")),
Subsignal("data0_p", Pins("J22"), IOStandard("TMDS_33")),
Subsignal("data0_n", Pins("H22"), IOStandard("TMDS_33")),
Subsignal("data1_p", Pins("K21"), IOStandard("TMDS_33")),
Subsignal("data1_n", Pins("K22"), IOStandard("TMDS_33")),
Subsignal("data2_p", Pins("H20"), IOStandard("TMDS_33")),
Subsignal("data2_n", Pins("G20"), IOStandard("TMDS_33")),
Subsignal("scl", Pins("AA8"), IOStandard("SSTL135")),
Subsignal("sda", Pins("AB8"), IOStandard("SSTL135")),
),
# RGB TFT-LCD
("tft_lcd", 0,
Subsignal("d", Pins("L14 L13 M13 K19 K18 K16 L16 M16", # D0-D7
"H14 J14 H15 J15 J16 K14 K13 L15", # D8-D15
"G17 G18 G15 G16 H19 J19 G13 H13" # G16-D23
), IOStandard("LVCMOS33")),
Subsignal("hsync_n", Pins("M22"), IOStandard("LVCMOS33")),
Subsignal("vsync_n", Pins("M15"), IOStandard("LVCMOS33")),
Subsignal("de_n", Pins("M21"), IOStandard("LVCMOS33")),
Subsignal("bl", Pins("W9"), IOStandard("SSTL135")),
Subsignal("pclk", Pins("H17"), IOStandard("LVCMOS33")),
Subsignal("rst", Pins("Y9"), IOStandard("SSTL135")),
),
# SFP
("gtp_refclk", 0,
Subsignal("p", Pins("F10")),
Subsignal("n", Pins("E10"))
),
("sfp_tx", 0,
Subsignal("p", Pins("B4")),
Subsignal("n", Pins("A4"))
),
("sfp_rx", 0,
Subsignal("p", Pins("B8")),
Subsignal("n", Pins("A8"))
),
("sfp_tx_disable_n", 0, Pins("V5"), IOStandard("SSTL135")),
("sfp_rx_los", 0, Pins("U6"), IOStandard("SSTL135")),
# SFP1
("sfp_tx", 1,
Subsignal("p", Pins("D5")),
Subsignal("n", Pins("C5")),
),
("sfp_rx", 1,
Subsignal("p", Pins("D11")),
Subsignal("n", Pins("C11")),
),
("sfp_tx_disable_n", 1, Pins("Y6"), IOStandard("SSTL135")),
("sfp_rx_los", 1, Pins("AA6"), IOStandard("SSTL135")),
("pcie_x1", 0,
Subsignal("rst_n", Pins("N15"), IOStandard("LVCMOS33")),
Subsignal("clk_p", Pins("F6")),
Subsignal("clk_n", Pins("E6")),
Subsignal("rx_p", Pins("D9")),
Subsignal("rx_n", Pins("C9")),
Subsignal("tx_p", Pins("D7")),
Subsignal("tx_n", Pins("C7"))
),
("pcie_x2", 0,
Subsignal("rst_n", Pins("N15"), IOStandard("LVCMOS33")),
Subsignal("clk_p", Pins("F6")),
Subsignal("clk_n", Pins("E6")),
Subsignal("rx_p", Pins("D9 B10")),
Subsignal("rx_n", Pins("C9 A10")),
Subsignal("tx_p", Pins("D7 B6")),
Subsignal("tx_n", Pins("C7 A6"))
),
]
# Connectors ---------------------------------------------------------------------------------------
_connectors = [
("J3", {
1: "N14", 2: "N13",
3: "R14", 4: "P14",
5: "P17", 6: "N17",
7: "R16", 8: "P15",
9: "P16", 10: "R17",
11: "W17", 12: "V17",
13: "U18", 14: "U17",
15: "AB18", 16: "AA18",
17: "C13", 18: "B13",
19: "C14", 20: "C15",
21: "B15", 22: "B16",
23: "C18", 24: "C19",
25: "B20", 26: "A20",
27: "D20", 28: "C20",
29: "B22", 30: "C22",
31: "B21", 32: "A21",
33: "D14", 34: "D15",
35: "E16", 36: "D16",
}),
("J4", {
1: "N15", 2: "Y17",
3: "V10", 4: "W10",
5: "AA9", 6: "AB10",
7: "T14", 8: "T15",
9: "V13", 10: "V14",
11: "T16", 12: "U16",
13: "Y14", 14: "W14",
15: "U15", 16: "V15",
17: "W16", 18: "W15",
19: "Y11", 20: "Y12",
21: "AA10", 22: "AA11",
23: "AB11", 24: "AB12",
25: "W11", 26: "W12",
27: "AA13", 28: "AB13",
29: "Y13", 30: "AA14",
31: "AA15", 32: "AB15",
33: "AB16", 34: "AB17",
35: "Y16", 36: "AA16",
}),
]
def raw_j3():
return [("J3", 0, Pins(" ".join([f"J3:{i+1:d}" for i in range(36)])), IOStandard("LVCMOS33"))]
def raw_j4():
return [("J4", 0, Pins(" ".join([f"J4:{i+1:d}" for i in range(36)])), IOStandard("LVCMOS33"))]
# Platform -----------------------------------------------------------------------------------------
class Platform(Xilinx7SeriesPlatform):
default_clk_name = "clk50"
default_clk_period = 1e9/50e6
def __init__(self, toolchain="vivado", variant="a7-35"):
assert variant in ["a7-35", "a7-100"]
kgates = variant.split("-")[-1]
self.kgates = kgates
Xilinx7SeriesPlatform.__init__(self, f"xc7a{kgates}tfgg484-2", _io, _connectors, toolchain=toolchain)
self.toolchain.bitstream_commands = \
["set_property BITSTREAM.CONFIG.SPI_BUSWIDTH 4 [current_design]",
"set_property BITSTREAM.CONFIG.CONFIGRATE 50 [current_design]",
"set_property CFGBVS VCCO [current_design]",
"set_property CONFIG_VOLTAGE 3.3 [current_design]",
"set_property BITSTREAM.CONFIG.UNUSEDPIN PULLUP [current_design]"
]
self.toolchain.additional_commands = \
["write_cfgmem -force -format bin -interface spix4 -size 16 "
"-loadbit \"up 0x0 {build_name}.bit\" -file {build_name}.bin"]
self.add_platform_command("set_property INTERNAL_VREF 0.675 [get_iobanks 34]")
self.add_platform_command("set_property INTERNAL_VREF 0.675 [get_iobanks 35]")
def create_programmer(self):
return OpenOCD("openocd_alientek_davincipro.cfg", f"bscan_spi_xc7a{self.kgates}t.bit")
def do_finalize(self, fragment):
Xilinx7SeriesPlatform.do_finalize(self, fragment)
try:
self.add_period_constraint(self.lookup_request("eth_clocks").rx, 1e9/125e6)
except ConstraintError:
pass
def do_finalize(self, fragment):
Xilinx7SeriesPlatform.do_finalize(self, fragment)
self.add_period_constraint(self.lookup_request("clk50", loose=True), 1e9/50e6)
self.add_period_constraint(self.lookup_request("usb_clk", loose=True), 1e9/60e6)
self.add_period_constraint(self.lookup_request("eth_clocks:rx", loose=True), 1e9/125e6)
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