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litex/boards: add machxo3 starter kit platform

This commit is contained in:
Florent Kermarrec 2016-12-02 17:24:13 +01:00
parent 873e50430e
commit 8b5166f294
1 changed files with 92 additions and 0 deletions
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litex/boards/platforms/machxo3.py Normal file
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# This file is Copyright (c) 2016 Florent Kermarrec <florent@enjoy-digital.fr>
# License: BSD
from litex.build.generic_platform import *
from litex.build.lattice import LatticePlatform
from litex.build.lattice.programmer import LatticeProgrammer
_io = [
("clk12", 0, Pins("C8"), IOStandard("LVCMOS33")),
("rst_n", 0, Pins("B3"), IOStandard("LVCMOS33")),
("user_led", 0, Pins("H11"), IOStandard("LVCMOS33")),
("user_led", 1, Pins("J13"), IOStandard("LVCMOS33")),
("user_led", 2, Pins("J11"), IOStandard("LVCMOS33")),
("user_led", 3, Pins("L12"), IOStandard("LVCMOS33")),
("user_led", 4, Pins("K11"), IOStandard("LVCMOS33")),
("user_led", 5, Pins("L13"), IOStandard("LVCMOS33")),
("user_led", 6, Pins("N15"), IOStandard("LVCMOS33")),
("user_led", 7, Pins("P16"), IOStandard("LVCMOS33")),
("user_dip_btn", 0, Pins("N2"), IOStandard("LVCMOS33")),
("user_dip_btn", 1, Pins("P1"), IOStandard("LVCMOS33")),
("user_dip_btn", 2, Pins("M3"), IOStandard("LVCMOS33")),
("user_dip_btn", 3, Pins("N1"), IOStandard("LVCMOS33")),
("serial", 0,
Subsignal("tx", Pins("C11"), IOStandard("LVCMOS33")),
Subsignal("rx", Pins("A11"), IOStandard("LVCMOS33")),
),
]
class Platform(LatticePlatform):
default_clk_name = "clk12"
default_clk_period = 83
def __init__(self):
LatticePlatform.__init__(self, "LCMXO3L-6900C-5BG256C", _io)
def create_programmer(self):
_xcf_template = """
<?xml version='1.0' encoding='utf-8' ?>
<!DOCTYPE ispXCF SYSTEM "IspXCF.dtd" >
<ispXCF version="3.6.0">
<Comment></Comment>
<Chain>
<Comm>JTAG</Comm>
<Device>
<SelectedProg value="TRUE"/>
<Pos>1</Pos>
<Vendor>Lattice</Vendor>
<Family>MachXO3L</Family>
<Name>LCMXO3L-6900C</Name>
<IDCode>0x412bd043</IDCode>
<Package>All</Package>
<PON>LCMXO3L-6900C</PON>
<Bypass>
<InstrLen>8</InstrLen>
<InstrVal>11111111</InstrVal>
<BScanLen>1</BScanLen>
<BScanVal>0</BScanVal>
</Bypass>
<File>{bitstream_file}</File>
<JedecChecksum>N/A</JedecChecksum>
<Operation>SRAM Fast Configuration</Operation>
<Option>
<SVFVendor>JTAG STANDARD</SVFVendor>
<IOState>HighZ</IOState>
<PreloadLength>664</PreloadLength>
<IOVectorData>0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF</IOVectorData>
<Usercode>0x00000000</Usercode>
<AccessMode>SRAM</AccessMode>
</Option>
</Device>
</Chain>
<ProjectOptions>
<Program>SEQUENTIAL</Program>
<Process>ENTIRED CHAIN</Process>
<OperationOverride>No Override</OperationOverride>
<StartTAP>TLR</StartTAP>
<EndTAP>TLR</EndTAP>
<VerifyUsercode value="FALSE"/>
</ProjectOptions>
<CableOptions>
<CableName>USB2</CableName>
<PortAdd>FTUSB-0</PortAdd>
<USBID>Lattice XO3L Starter Kit A Location 0000 Serial A</USBID>
</CableOptions>
</ispXCF>
"""
return LatticeProgrammer(_xcf_template)