Hardware
/
litex
mirror of https://github.com/enjoy-digital/litex.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Merge pull request #112 from cr1901/8k-b-evn 

build/platforms: Add ice40_hx8k_b_evn from Migen.
This commit is contained in:
enjoy-digital 2018-10-04 21:12:33 +02:00 committed by GitHub
parent 9cf4ffb3f4 9a44f08a3e
commit 6febb6826c
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 47 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

47
litex/boards/platforms/ice40_hx8k_b_evn.py Normal file
View File

@ -0,0 +1,47 @@
from litex.build.generic_platform import *
from litex.build.lattice import LatticePlatform
from litex.build.lattice.programmer import IceStormProgrammer
_io = [
("user_led", 0, Pins("B5"), IOStandard("LVCMOS33")),
("user_led", 1, Pins("B4"), IOStandard("LVCMOS33")),
("user_led", 2, Pins("A2"), IOStandard("LVCMOS33")),
("user_led", 3, Pins("A1"), IOStandard("LVCMOS33")),
("user_led", 4, Pins("C5"), IOStandard("LVCMOS33")),
("user_led", 5, Pins("C4"), IOStandard("LVCMOS33")),
("user_led", 6, Pins("B3"), IOStandard("LVCMOS33")),
("user_led", 7, Pins("C3"), IOStandard("LVCMOS33")),
("serial", 0,
Subsignal("rx", Pins("B10")),
Subsignal("tx", Pins("B12"), Misc("PULLUP")),
Subsignal("rts", Pins("B13"), Misc("PULLUP")),
Subsignal("cts", Pins("A15"), Misc("PULLUP")),
Subsignal("dtr", Pins("A16"), Misc("PULLUP")),
Subsignal("dsr", Pins("B14"), Misc("PULLUP")),
Subsignal("dcd", Pins("B15"), Misc("PULLUP")),
IOStandard("LVCMOS33"),
),
("spiflash", 0,
Subsignal("cs_n", Pins("R12"), IOStandard("LVCMOS33")),
Subsignal("clk", Pins("R11"), IOStandard("LVCMOS33")),
Subsignal("mosi", Pins("P12"), IOStandard("LVCMOS33")),
Subsignal("miso", Pins("P11"), IOStandard("LVCMOS33")),
),
("clk12", 0, Pins("J3"), IOStandard("LVCMOS33"))
]
class Platform(LatticePlatform):
default_clk_name = "clk12"
default_clk_period = 83.333
def __init__(self):
LatticePlatform.__init__(self, "ice40-hx8k-ct256", _io,
toolchain="icestorm")
def create_programmer(self):
return IceStormProgrammer()