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Merge pull request #38 from cr1901/mercury 

Add Mercury baseboard support from Migen, import fixes.
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enjoy-digital 2017-12-27 17:52:37 +01:00 committed by GitHub
parent 9adcc3a8b9 dd6ca87561
commit 5d98a60e6e
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1 changed files with 78 additions and 8 deletions
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86
litex/boards/platforms/mercury.py
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@ -1,8 +1,9 @@
# This file is Copyright (c) 2015-2017 William D. Jones <thor0505@comcast.net>
# This file is Copyright (c) 2015, 2017 William D. Jones <thor0505@comcast.net>
# License: BSD
from litex.gen.build.generic_platform import *
from litex.gen.build.xilinx import XilinxPlatform, XC3SProg
from litex.build.generic_platform import *
from litex.build.xilinx import XilinxPlatform
from litex.build.xilinx.programmer import XC3SProg
_io = [
@ -66,9 +67,12 @@ _connectors = [
# to FPGA)- LVCMOS33
("CLKIO", "P40 P44"), # Clock IO (Can be used as GPIO)- LVCMOS33
("INPUT", "P68 P97 P7 P82"), # Input-only pins- LVCMOS33
("LED", "P13 P15 P16 P19") # LEDs can be used as pins as well- LVTTL.
("LED", "P13 P15 P16 P19"), # LEDs can be used as pins as well- LVTTL.
("PMOD", "P5 P4 P6 P98 P94 P93 P90 P89") # Baseboard PMOD.
# Overlaps w/ GPIO bus.
]
# Some default useful extensions- use platform.add_extension() to use, e.g.
# from migen.build.platforms import mercury
# plat = mercury.Platform()
@ -103,8 +107,8 @@ gpio_sram = [
serial = [
("serial", 0,
Subsignal("tx", Pins("DIO:0"), IOStandard("LVCMOS33")), # FTDI D1
Subsignal("rx", Pins("INPUT:0"), IOStandard("LVCMOS33"))
) # FTDI D0
Subsignal("rx", Pins("INPUT:0"), IOStandard("LVCMOS33")) # FTDI D0
)
]
leds = [
@ -114,9 +118,75 @@ leds = [
("user_led", 3, Pins("LED:3"), IOStandard("LVTTL"))
]
# The remaining peripherals only make sense w/ the Baseboard installed.
# See: http://www.micro-nova.com/mercury-baseboard/
# Not implemented yet.
baseboard = [
sw = [
("sw", 0, Pins("GPIO:0"), IOStandard("LVTTL")),
("sw", 1, Pins("GPIO:1"), IOStandard("LVTTL")),
("sw", 2, Pins("GPIO:2"), IOStandard("LVTTL")),
("sw", 3, Pins("GPIO:3"), IOStandard("LVTTL")),
("sw", 4, Pins("GPIO:4"), IOStandard("LVTTL")),
("sw", 5, Pins("GPIO:5"), IOStandard("LVTTL")),
("sw", 6, Pins("GPIO:6"), IOStandard("LVTTL")),
("sw", 7, Pins("GPIO:7"), IOStandard("LVTTL"))
]
user_btn = [
("user_btn", 1, Pins("INPUT:0"), IOStandard("LVTTL")),
("user_btn", 2, Pins("INPUT:1"), IOStandard("LVTTL")),
("user_btn", 3, Pins("INPUT:2"), IOStandard("LVTTL")),
("user_btn", 4, Pins("INPUT:3"), IOStandard("LVTTL"))
]
vga = [
("vga_out", 0,
Subsignal("hsync_n", Pins("LED:2"), IOStandard("LVCMOS33"),
Misc("SLEW=FAST")),
Subsignal("vsync_n", Pins("LED:3"), IOStandard("LVCMOS33"),
Misc("SLEW=FAST")),
Subsignal("r", Pins("DIO:0 DIO:1 DIO:2"), IOStandard("LVCMOS33"),
Misc("SLEW=FAST")),
Subsignal("g", Pins("DIO:3 DIO:4 DIO:5"), IOStandard("LVCMOS33"),
Misc("SLEW=FAST")),
Subsignal("b", Pins("DIO:6 CLKIO:0"), IOStandard("LVCMOS33"),
Misc("SLEW=FAST"))
)
]
extclk = [
("extclk", 0, Pins("CLKIO:1"), IOStandard("LVCMOS33"))
]
sevenseg = [
("sevenseg", 0,
Subsignal("segment7", Pins("GPIO:12"), IOStandard("LVTTL")), # A
Subsignal("segment6", Pins("GPIO:13"), IOStandard("LVTTL")), # B
Subsignal("segment5", Pins("GPIO:14"), IOStandard("LVTTL")), # C
Subsignal("segment4", Pins("GPIO:15"), IOStandard("LVTTL")), # D
Subsignal("segment3", Pins("GPIO:16"), IOStandard("LVTTL")), # E
Subsignal("segment2", Pins("GPIO:17"), IOStandard("LVTTL")), # F
Subsignal("segment1", Pins("GPIO:18"), IOStandard("LVTTL")), # G
Subsignal("segment0", Pins("GPIO:19"), IOStandard("LVTTL")), # Dot
Subsignal("enable0", Pins("GPIO:8"), IOStandard("LVTTL")), # EN0
Subsignal("enable1", Pins("GPIO:9"), IOStandard("LVTTL")), # EN1
Subsignal("enable2", Pins("GPIO:10"), IOStandard("LVTTL")), # EN2
Subsignal("enable3", Pins("GPIO:11"), IOStandard("LVTTL")) # EN2
)
]
ps2 = [
("ps2", 0,
Subsignal("clk", Pins("LED:1"), IOStandard("LVCMOS33")),
Subsignal("data", Pins("LED:0"), IOStandard("LVCMOS33"))
)
]
audio = [
("audio", 0,
Subsignal("l", Pins("GPIO:29"), IOStandard("LVTTL")),
Subsignal("r", Pins("GPIO:28"), IOStandard("LVTTL"))
)
]