# GNU General Public License for more details.
#
-from migen.fhdl.std import *
-from mibuild.generic_platform import *
-from mibuild.xilinx import XilinxPlatform
-from mibuild.xilinx.vivado import XilinxVivadoToolchain
-from mibuild.xilinx.ise import XilinxISEToolchain
+from migen import *
+from migen.build.generic_platform import *
+from migen.build import xilinx
"""
This migen script produces proxy bitstreams to allow programming SPI flashes
-behind FPGAs. JTAG signalling is connected directly to SPI signalling. CS_N is
-asserted when the JTAG IR contains the USER1 instruction and the state is
-SHIFT-DR.
+behind FPGAs.
+
+Bitstream binaries built with this script are available at:
+https://github.com/jordens/bscan_spi_bitstreams
-Xilinx bscan cells sample TDO on falling TCK and forward it.
+JTAG signalling is connected directly to SPI signalling. CS_N is
+asserted when the JTAG IR contains the USER1 instruction and the state is
+SHIFT-DR. Xilinx bscan cells sample TDO on falling TCK and forward it.
MISO requires sampling on rising CLK and leads to one cycle of latency.
https://github.com/m-labs/migen
class Spartan3(Module):
macro = "BSCAN_SPARTAN3"
+ toolchain = "ise"
def __init__(self, platform):
+ platform.toolchain.bitgen_opt += " -g compress -g UnusedPin:Pullup"
self.clock_domains.cd_jtag = ClockDomain(reset_less=True)
spi = platform.request("spiflash")
shift = Signal()
class Spartan6(Module):
+ toolchain = "ise"
+
def __init__(self, platform):
+ platform.toolchain.bitgen_opt += " -g compress -g UnusedPin:Pullup"
self.clock_domains.cd_jtag = ClockDomain(reset_less=True)
spi = platform.request("spiflash")
shift = Signal()
class Series7(Module):
+ toolchain = "vivado"
+
def __init__(self, platform):
+ platform.toolchain.bitstream_commands.extend([
+ "set_property BITSTREAM.GENERAL.COMPRESS True [current_design]",
+ "set_property BITSTREAM.CONFIG.UNUSEDPIN Pullnone [current_design]",
+ ])
self.clock_domains.cd_jtag = ClockDomain(reset_less=True)
spi = platform.request("spiflash")
clk = Signal()
i_USRCCLKTS=0, i_USRDONEO=1, i_USRDONETS=1)
-class XilinxBscanSpi(XilinxPlatform):
+class XilinxBscanSpi(xilinx.XilinxPlatform):
+ packages = {
+ # (package-speedgrade, id): [cs_n, clk, mosi, miso, *pullups]
+ ("cp132", 1): ["M2", "N12", "N2", "N8"],
+ ("fg320", 1): ["U3", "U16", "T4", "N10"],
+ ("fg320", 2): ["V3", "U16", "T11", "V16"],
+ ("fg484", 1): ["Y4", "AA20", "AB14", "AB20"],
+ ("fgg484", 1): ["Y4", "AA20", "AB14", "AB20"],
+ ("fgg400", 1): ["Y2", "Y19", "W12", "W18"],
+ ("ftg256", 1): ["T2", "R14", "P10", "T14"],
+ ("ft256", 1): ["T2", "R14", "P10", "T14"],
+ ("fg400", 1): ["Y2", "Y19", "W12", "W18"],
+ ("cs484", 1): ["U7", "V17", "V13", "W17"],
+ ("qg144-2", 1): ["P38", "P70", "P64", "P65", "P62", "P61"],
+ ("cpg196-2", 1): ["P2", "N13", "P11", "N11", "N10", "P10"],
+ ("cpg236-1", 1): ["K19", None, "D18", "D19", "G18", "F18"],
+ ("csg484-2", 1): ["AB5", "W17", "AB17", "Y17", "V13", "W13"],
+ ("csg324-2", 1): ["V3", "R15", "T13", "R13", "T14", "V14"],
+ ("csg324-1", 1): ["L13", None, "K17", "K18", "L14", "M14"],
+ ("fbg484-1", 1): ["T19", None, "P22", "R22", "P21", "R21"],
+ ("fbg484-1", 2): ["L16", None, "H18", "H19", "G18", "F19"],
+ ("fbg676-1", 1): ["C23", None, "B24", "A25", "B22", "A22"],
+ ("ffg901-1", 1): ["V26", None, "R30", "T30", "R28", "T28"],
+ ("ffg1156-1", 1): ["V30", None, "AA33", "AA34", "Y33", "Y34"],
+ ("ffg1157-1", 1): ["AL33", None, "AN33", "AN34", "AK34", "AL34"],
+ ("ffg1158-1", 1): ["C24", None, "A23", "A24", "B26", "A26"],
+ ("ffg1926-1", 1): ["AK33", None, "AN34", "AN35", "AJ34", "AK34"],
+ ("fhg1761-1", 1): ["AL36", None, "AM36", "AN36", "AJ36", "AJ37"],
+ ("flg1155-1", 1): ["AL28", None, "AE28", "AF28", "AJ29", "AJ30"],
+ ("flg1932-1", 1): ["V32", None, "T33", "R33", "U31", "T31"],
+ ("flg1926-1", 1): ["AK33", None, "AN34", "AN35", "AJ34", "AK34"],
+ }
+
pinouts = {
# bitstreams are named by die, package does not matter, speed grade
# should not matter.
- # cs_n, clk, mosi, miso, *pullups
- "xc3s100e": ("cp132",
- ["M2", "N12", "N2", "N8"],
- "LVCMOS33", Spartan3),
- "xc3s1200e": ("fg320",
- ["U3", "U16", "T4", "N10"],
- "LVCMOS33", Spartan3),
- "xc3s1400a": ("fg484",
- ["Y4", "AA20", "AB14", "AB20"],
- "LVCMOS33", Spartan3A),
- "xc3s1400an": ("fgg484",
- ["Y4", "AA20", "AB14", "AB20"],
- "LVCMOS33", Spartan3A),
- "xc3s1600e": ("fg320",
- ["U3", "U16", "T4", "N10"],
- "LVCMOS33", Spartan3),
- "xc3s200a": ("fg320",
- ["V3", "U16", "T11", "V16"],
- "LVCMOS33", Spartan3A),
- "xc3s200an": ("ftg256",
- ["T2", "R14", "P10", "T14"],
- "LVCMOS33", Spartan3A),
- "xc3s250e": ("cp132",
- ["M2", "N12", "N2", "N8"],
- "LVCMOS33", Spartan3),
- "xc3s400a": ("fg320",
- ["V3", "U16", "T11", "V16"],
- "LVCMOS33", Spartan3A),
- "xc3s400an": ("fgg400",
- ["Y2", "Y19", "W12", "W18"],
- "LVCMOS33", Spartan3A),
- "xc3s500e": ("cp132",
- ["M2", "N12", "N2", "N8"],
- "LVCMOS33", Spartan3),
- "xc3s50a": ("ft256",
- ["T2", "R14", "P10", "T14"],
- "LVCMOS33", Spartan3A),
- "xc3s50an": ("ftg256",
- ["T2", "R14", "P10", "T14"],
- "LVCMOS33", Spartan3A),
- "xc3s700a": ("fg400",
- ["Y2", "Y19", "W12", "W18"],
- "LVCMOS33", Spartan3A),
- "xc3s700an": ("fgg484",
- ["Y4", "AA20", "AB14", "AB20"],
- "LVCMOS33", Spartan3A),
- "xc3sd1800a": ("cs484",
- ["U7", "V17", "V13", "W17"],
- "LVCMOS33", Spartan3A),
- "xc3sd3400a": ("cs484",
- ["U7", "V17", "V13", "W17"],
- "LVCMOS33", Spartan3A),
-
- "xc6slx100": ("csg484-2",
- ["AB5", "W17", "AB17", "Y17", "V13", "W13"],
- "LVCMOS33", Spartan6),
- "xc6slx100t": ("csg484-2",
- ["AB5", "W17", "AB17", "Y17", "V13", "W13"],
- "LVCMOS33", Spartan6),
- "xc6slx150": ("csg484-2",
- ["AB5", "W17", "AB17", "Y17", "V13", "W13"],
- "LVCMOS33", Spartan6),
- "xc6slx150t": ("csg484-2",
- ["AB5", "W17", "AB17", "Y17", "V13", "W13"],
- "LVCMOS33", Spartan6),
- "xc6slx16": ("cpg196-2",
- ["P2", "N13", "P11", "N11", "N10", "P10"],
- "LVCMOS33", Spartan6),
- "xc6slx25": ("csg324-2",
- ["V3", "R15", "T13", "R13", "T14", "V14"],
- "LVCMOS33", Spartan6),
- "xc6slx25t": ("csg324-2",
- ["V3", "R15", "T13", "R13", "T14", "V14"],
- "LVCMOS33", Spartan6),
- "xc6slx45": ("csg324-2",
- ["V3", "R15", "T13", "R13", "T14", "V14"],
- "LVCMOS33", Spartan6),
- "xc6slx45t": ("csg324-2",
- ["V3", "R15", "T13", "R13", "T14", "V14"],
- "LVCMOS33", Spartan6),
- "xc6slx4": ("cpg196-2",
- ["P2", "N13", "P11", "N11", "N10", "P10"],
- "LVCMOS33", Spartan6),
- "xc6slx4t": ("qg144-2",
- ["P38", "P70", "P64", "P65", "P62", "P61"],
- "LVCMOS33", Spartan6),
- "xc6slx75": ("csg484-2",
- ["AB5", "W17", "AB17", "Y17", "V13", "W13"],
- "LVCMOS33", Spartan6),
- "xc6slx75t": ("csg484-2",
- ["AB5", "W17", "AB17", "Y17", "V13", "W13"],
- "LVCMOS33", Spartan6),
- "xc6slx9": ("cpg196-2",
- ["P2", "N13", "P11", "N11", "N10", "P10"],
- "LVCMOS33", Spartan6),
- "xc6slx9t": ("qg144-2",
- ["P38", "P70", "P64", "P65", "P62", "P61"],
- "LVCMOS33", Spartan6),
-
- "xc7a100t": ("csg324-1",
- ["L13", None, "K17", "K18", "L14", "M14"],
- "LVCMOS25", Series7),
- "xc7a15t": ("cpg236-1",
- ["K19", None, "D18", "D19", "G18", "F18"],
- "LVCMOS25", Series7),
- "xc7a200t": ("fbg484-1",
- ["T19", None, "P22", "R22", "P21", "R21"],
- "LVCMOS25", Series7),
- "xc7a35t": ("cpg236-1",
- ["K19", None, "D18", "D19", "G18", "F18"],
- "LVCMOS25", Series7),
- "xc7a50t": ("cpg236-1",
- ["K19", None, "D18", "D19", "G18", "F18"],
- "LVCMOS25", Series7),
- "xc7a75t": ("csg324-1",
- ["L13", None, "K17", "K18", "L14", "M14"],
- "LVCMOS25", Series7),
- "xc7k160t": ("fbg484-1",
- ["L16", None, "H18", "H19", "G18", "F19"],
- "LVCMOS25", Series7),
- "xc7k325t": ("fbg676-1",
- ["C23", None, "B24", "A25", "B22", "A22"],
- "LVCMOS25", Series7),
- "xc7k355t": ("ffg901-1",
- ["V26", None, "R30", "T30", "R28", "T28"],
- "LVCMOS25", Series7),
- "xc7k410t": ("fbg676-1",
- ["C23", None, "B24", "A25", "B22", "A22"],
- "LVCMOS25", Series7),
- "xc7k420t": ("ffg1156-1",
- ["V30", None, "AA33", "AA34", "Y33", "Y34"],
- "LVCMOS25", Series7),
- "xc7k480t": ("ffg1156-1",
- ["V30", None, "AA33", "AA34", "Y33", "Y34"],
- "LVCMOS25", Series7),
- "xc7k70t": ("fbg484-1",
- ["L16", None, "H18", "H19", "G18", "F19"],
- "LVCMOS25", Series7),
- "xc7v2000t": ("fhg1761-1",
- ["AL36", None, "AM36", "AN36", "AJ36", "AJ37"],
- "LVCMOS18", Series7),
- "xc7v585t": ("ffg1157-1",
- ["AL33", None, "AN33", "AN34", "AK34", "AL34"],
- "LVCMOS18", Series7),
- "xc7vh580t": ("flg1155-1",
- ["AL28", None, "AE28", "AF28", "AJ29", "AJ30"],
- "LVCMOS18", Series7),
- "xc7vh870t": ("flg1932-1",
- ["V32", None, "T33", "R33", "U31", "T31"],
- "LVCMOS18", Series7),
- "xc7vx1140t": ("flg1926-1",
- ["AK33", None, "AN34", "AN35", "AJ34", "AK34"],
- "LVCMOS18", Series7),
- "xc7vx330t": ("ffg1157-1",
- ["AL33", None, "AN33", "AN34", "AK34", "AL34"],
- "LVCMOS18", Series7),
- "xc7vx415t": ("ffg1157-1",
- ["AL33", None, "AN33", "AN34", "AK34", "AL34"],
- "LVCMOS18", Series7),
- "xc7vx485t": ("ffg1157-1",
- ["AL33", None, "AN33", "AN34", "AK34", "AL34"],
- "LVCMOS18", Series7),
- "xc7vx550t": ("ffg1158-1",
- ["C24", None, "A23", "A24", "B26", "A26"],
- "LVCMOS18", Series7),
- "xc7vx690t": ("ffg1157-1",
- ["AL33", None, "AN33", "AN34", "AK34", "AL34"],
- "LVCMOS18", Series7),
- "xc7vx980t": ("ffg1926-1",
- ["AK33", None, "AN34", "AN35", "AJ34", "AK34"],
- "LVCMOS18", Series7),
+ #
+ # chip: (package, id, standard, class)
+ "xc3s100e": ("cp132", 1, "LVCMOS33", Spartan3),
+ "xc3s1200e": ("fg320", 1, "LVCMOS33", Spartan3),
+ "xc3s1400a": ("fg484", 1, "LVCMOS33", Spartan3A),
+ "xc3s1400an": ("fgg484", 1, "LVCMOS33", Spartan3A),
+ "xc3s1600e": ("fg320", 1, "LVCMOS33", Spartan3),
+ "xc3s200a": ("fg320", 2, "LVCMOS33", Spartan3A),
+ "xc3s200an": ("ftg256", 1, "LVCMOS33", Spartan3A),
+ "xc3s250e": ("cp132", 1, "LVCMOS33", Spartan3),
+ "xc3s400a": ("fg320", 2, "LVCMOS33", Spartan3A),
+ "xc3s400an": ("fgg400", 1, "LVCMOS33", Spartan3A),
+ "xc3s500e": ("cp132", 1, "LVCMOS33", Spartan3),
+ "xc3s50a": ("ft256", 1, "LVCMOS33", Spartan3A),
+ "xc3s50an": ("ftg256", 1, "LVCMOS33", Spartan3A),
+ "xc3s700a": ("fg400", 1, "LVCMOS33", Spartan3A),
+ "xc3s700an": ("fgg484", 1, "LVCMOS33", Spartan3A),
+ "xc3sd1800a": ("cs484", 1, "LVCMOS33", Spartan3A),
+ "xc3sd3400a": ("cs484", 1, "LVCMOS33", Spartan3A),
+
+ "xc6slx100": ("csg484-2", 1, "LVCMOS33", Spartan6),
+ "xc6slx100t": ("csg484-2", 1, "LVCMOS33", Spartan6),
+ "xc6slx150": ("csg484-2", 1, "LVCMOS33", Spartan6),
+ "xc6slx150t": ("csg484-2", 1, "LVCMOS33", Spartan6),
+ "xc6slx16": ("cpg196-2", 1, "LVCMOS33", Spartan6),
+ "xc6slx25": ("csg324-2", 1, "LVCMOS33", Spartan6),
+ "xc6slx25t": ("csg324-2", 1, "LVCMOS33", Spartan6),
+ "xc6slx45": ("csg324-2", 1, "LVCMOS33", Spartan6),
+ "xc6slx45t": ("csg324-2", 1, "LVCMOS33", Spartan6),
+ "xc6slx4": ("cpg196-2", 1, "LVCMOS33", Spartan6),
+ "xc6slx4t": ("qg144-2", 1, "LVCMOS33", Spartan6),
+ "xc6slx75": ("csg484-2", 1, "LVCMOS33", Spartan6),
+ "xc6slx75t": ("csg484-2", 1, "LVCMOS33", Spartan6),
+ "xc6slx9": ("cpg196-2", 1, "LVCMOS33", Spartan6),
+ "xc6slx9t": ("qg144-2", 1, "LVCMOS33", Spartan6),
+
+ "xc7a100t": ("csg324-1", 1, "LVCMOS25", Series7),
+ "xc7a15t": ("cpg236-1", 1, "LVCMOS25", Series7),
+ "xc7a200t": ("fbg484-1", 1, "LVCMOS25", Series7),
+ "xc7a35t": ("cpg236-1", 1, "LVCMOS25", Series7),
+ "xc7a50t": ("cpg236-1", 1, "LVCMOS25", Series7),
+ "xc7a75t": ("csg324-1", 1, "LVCMOS25", Series7),
+ "xc7k160t": ("fbg484-1", 2, "LVCMOS25", Series7),
+ "xc7k325t": ("fbg676-1", 1, "LVCMOS25", Series7),
+ "xc7k355t": ("ffg901-1", 1, "LVCMOS25", Series7),
+ "xc7k410t": ("fbg676-1", 1, "LVCMOS25", Series7),
+ "xc7k420t": ("ffg1156-1", 1, "LVCMOS25", Series7),
+ "xc7k480t": ("ffg1156-1", 1, "LVCMOS25", Series7),
+ "xc7k70t": ("fbg484-1", 2, "LVCMOS25", Series7),
+ "xc7v2000t": ("fhg1761-1", 1, "LVCMOS18", Series7),
+ "xc7v585t": ("ffg1157-1", 1, "LVCMOS18", Series7),
+ "xc7vh580t": ("flg1155-1", 1, "LVCMOS18", Series7),
+ "xc7vh870t": ("flg1932-1", 1, "LVCMOS18", Series7),
+ "xc7vx1140t": ("flg1926-1", 1, "LVCMOS18", Series7),
+ "xc7vx330t": ("ffg1157-1", 1, "LVCMOS18", Series7),
+ "xc7vx415t": ("ffg1157-1", 1, "LVCMOS18", Series7),
+ "xc7vx485t": ("ffg1157-1", 1, "LVCMOS18", Series7),
+ "xc7vx550t": ("ffg1158-1", 1, "LVCMOS18", Series7),
+ "xc7vx690t": ("ffg1157-1", 1, "LVCMOS18", Series7),
+ "xc7vx980t": ("ffg1926-1", 1, "LVCMOS18", Series7),
}
- def __init__(self, device, pins, std):
+ def __init__(self, device, pins, std, toolchain="ise"):
cs_n, clk, mosi, miso = pins[:4]
io = ["spiflash", 0,
Subsignal("cs_n", Pins(cs_n)),
io.append(Subsignal("clk", Pins(clk)))
for i, p in enumerate(pins[4:]):
io.append(Subsignal("pullup{}".format(i), Pins(p), Misc("PULLUP")))
-
- XilinxPlatform.__init__(self, device, [io])
- if isinstance(self.toolchain, XilinxVivadoToolchain):
- self.toolchain.bitstream_commands.append(
- "set_property BITSTREAM.GENERAL.COMPRESS True [current_design]"
- )
- elif isinstance(self.toolchain, XilinxISEToolchain):
- self.toolchain.bitgen_opt += " -g compress"
+ xilinx.XilinxPlatform.__init__(self, device, [io], toolchain=toolchain)
@classmethod
def make(cls, device, errors=False):
- pkg, pins, std, Top = cls.pinouts[device]
- platform = cls("{}-{}".format(device, pkg), pins, std)
+ pkg, id, std, Top = cls.pinouts[device]
+ pins = cls.packages[(pkg, id)]
+ platform = cls("{}-{}".format(device, pkg), pins, std, Top.toolchain)
top = Top(platform)
name = "bscan_spi_{}".format(device)
dir = "build_{}".format(device)
try:
platform.build(top, build_name=name, build_dir=dir)
except Exception as e:
- print("ERROR: build failed for {}: {}".format(device, e))
+ print(("ERROR: xilinx_bscan_spi build failed "
+ "for {}: {}").format(device, e))
if errors:
raise
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