litex/boards/platforms/machxo3.py

   1 # This file is Copyright (c) 2016 Florent Kermarrec <florent@enjoy-digital.fr>
   2 # License: BSD
   3
   4 from litex.build.generic_platform import *
   5 from litex.build.lattice import LatticePlatform
   6 from litex.build.lattice.programmer import LatticeProgrammer
   7
   8
   9 _io = [
  10     ("clk12", 0, Pins("C8"), IOStandard("LVCMOS33")),
  11     ("rst_n", 0, Pins("B3"), IOStandard("LVCMOS33")),
  12
  13     ("user_led", 0, Pins("H11"), IOStandard("LVCMOS33")),
  14     ("user_led", 1, Pins("J13"), IOStandard("LVCMOS33")),
  15     ("user_led", 2, Pins("J11"), IOStandard("LVCMOS33")),
  16     ("user_led", 3, Pins("L12"), IOStandard("LVCMOS33")),
  17     ("user_led", 4, Pins("K11"), IOStandard("LVCMOS33")),
  18     ("user_led", 5, Pins("L13"), IOStandard("LVCMOS33")),
  19     ("user_led", 6, Pins("N15"), IOStandard("LVCMOS33")),
  20     ("user_led", 7, Pins("P16"), IOStandard("LVCMOS33")),
  21
  22     ("user_dip_btn", 0, Pins("N2"), IOStandard("LVCMOS33")),
  23     ("user_dip_btn", 1, Pins("P1"), IOStandard("LVCMOS33")),
  24     ("user_dip_btn", 2, Pins("M3"), IOStandard("LVCMOS33")),
  25     ("user_dip_btn", 3, Pins("N1"), IOStandard("LVCMOS33")),
  26
  27     ("serial", 0,
  28         Subsignal("tx", Pins("C11"), IOStandard("LVCMOS33")),
  29         Subsignal("rx", Pins("A11"), IOStandard("LVCMOS33")),
  30     ),
  31 ]
  32
  33
  34 class Platform(LatticePlatform):
  35     default_clk_name = "clk12"
  36     default_clk_period = 83
  37
  38     def __init__(self):
  39         LatticePlatform.__init__(self, "LCMXO3L-6900C-5BG256C", _io)
  40
  41     def create_programmer(self):
  42         _xcf_template = """
  43 <?xml version='1.0' encoding='utf-8' ?>
  44 <!DOCTYPE       ispXCF  SYSTEM  "IspXCF.dtd" >
  45 <ispXCF version="3.6.0">
  46     <Comment></Comment>
  47     <Chain>
  48         <Comm>JTAG</Comm>
  49         <Device>
  50             <SelectedProg value="TRUE"/>
  51             <Pos>1</Pos>
  52             <Vendor>Lattice</Vendor>
  53             <Family>MachXO3L</Family>
  54             <Name>LCMXO3L-6900C</Name>
  55             <IDCode>0x412bd043</IDCode>
  56             <Package>All</Package>
  57             <PON>LCMXO3L-6900C</PON>
  58             <Bypass>
  59                 <InstrLen>8</InstrLen>
  60                 <InstrVal>11111111</InstrVal>
  61                 <BScanLen>1</BScanLen>
  62                 <BScanVal>0</BScanVal>
  63             </Bypass>
  64             <File>{bitstream_file}</File>
  65             <JedecChecksum>N/A</JedecChecksum>
  66             <Operation>SRAM Fast Configuration</Operation>
  67             <Option>
  68                 <SVFVendor>JTAG STANDARD</SVFVendor>
  69                 <IOState>HighZ</IOState>
  70                 <PreloadLength>664</PreloadLength>
  71                 <IOVectorData>0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF</IOVectorData>
  72                 <Usercode>0x00000000</Usercode>
  73                 <AccessMode>SRAM</AccessMode>
  74             </Option>
  75         </Device>
  76     </Chain>
  77     <ProjectOptions>
  78         <Program>SEQUENTIAL</Program>
  79         <Process>ENTIRED CHAIN</Process>
  80         <OperationOverride>No Override</OperationOverride>
  81         <StartTAP>TLR</StartTAP>
  82         <EndTAP>TLR</EndTAP>
  83         <VerifyUsercode value="FALSE"/>
  84     </ProjectOptions>
  85     <CableOptions>
  86         <CableName>USB2</CableName>
  87         <PortAdd>FTUSB-0</PortAdd>
  88         <USBID>Lattice XO3L Starter Kit A Location 0000 Serial A</USBID>
  89     </CableOptions>
  90 </ispXCF>
  91 """
  92         return LatticeProgrammer(_xcf_template)