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.submodules.j2s0 = j2s0 = JTAG2SPI()
self.submodules.j2s1 = j2s1 = JTAG2SPI(platform.request("spiflash"))
di = mg.Signal(4)
self.comb += mg.Cat(j2s0.mosi.i, j2s0.miso.i).eq(di)
self.specials += [
mg.Instance("BSCANE2", p_JTAG_CHAIN=1,
o_SHIFT=j2s0.jtag.shift, o_SEL=j2s0.jtag.sel,
o_CAPTURE=j2s0.jtag.capture,
o_DRCK=j2s0.jtag.tck,
o_TDI=j2s0.jtag.tdi, i_TDO=j2s0.jtag.tdo),
mg.Instance("BSCANE2", p_JTAG_CHAIN=2,
o_SHIFT=j2s1.jtag.shift, o_SEL=j2s1.jtag.sel,
o_CAPTURE=j2s1.jtag.capture,
o_DRCK=j2s1.jtag.tck,
o_TDI=j2s1.jtag.tdi, i_TDO=j2s1.jtag.tdo),
mg.Instance("STARTUPE3", i_GSR=0, i_GTS=0,
i_KEYCLEARB=0, i_PACK=1,
i_USRDONEO=1, i_USRDONETS=1,
i_USRCCLKO=mg.Mux(j2s0.clk.oe, j2s0.clk.o, j2s1.clk.o),
i_USRCCLKTS=~(j2s0.clk.oe | j2s1.clk.oe),
i_FCSBO=j2s0.cs_n.o, i_FCSBTS=~j2s0.cs_n.oe,
o_DI=di,
i_DO=mg.Cat(j2s0.mosi.o, j2s0.miso.o, 0, 0),
i_DTS=mg.Cat(~j2s0.mosi.oe, ~j2s0.miso.oe, 1, 1))
]
platform.add_period_constraint(j2s0.jtag.tck, 6)
platform.add_period_constraint(j2s1.jtag.tck, 6)
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.submodules.j2s = j2s = JTAG2SPI(platform.request("spiflash"))
# clk = mg.Signal()
self.specials += [
mg.Instance(
"BSCANE2", p_JTAG_CHAIN=1,
o_SHIFT=j2s.jtag.shift, o_SEL=j2s.jtag.sel,
o_CAPTURE=j2s.jtag.capture,
o_DRCK=j2s.jtag.tck,
o_TDI=j2s.jtag.tdi, i_TDO=j2s.jtag.tdo),
mg.Instance(
"STARTUPE2", i_CLK=0, i_GSR=0, i_GTS=0,
i_KEYCLEARB=0, i_PACK=1,
i_USRCCLKO=j2s.clk.o, i_USRCCLKTS=~j2s.clk.oe,
i_USRDONEO=1, i_USRDONETS=1),
# mg.Instance("BUFG", i_I=clk, o_O=j2s.jtag.tck)
]
platform.add_period_constraint(j2s.jtag.tck, 6)
try:
self.comb += [
platform.request("user_sma_gpio_p").eq(j2s.cs_n.i),
platform.request("user_sma_gpio_n").eq(j2s.clk.o),
platform.request("user_sma_clock_p").eq(j2s.mosi.o),
platform.request("user_sma_clock_n").eq(j2s.miso.i),
]
except mb.ConstraintError:
pass
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.submodules.j2s = j2s = JTAG2SPI(platform.request("spiflash"))
self.specials += [
mg.Instance("BSCANE2",
p_JTAG_CHAIN=1,
o_SHIFT=j2s.jtag.shift,
o_SEL=j2s.jtag.sel,
o_CAPTURE=j2s.jtag.capture,
o_TCK=j2s.jtag.tck,
o_TDI=j2s.jtag.tdi,
i_TDO=j2s.jtag.tdo),
mg.Instance("STARTUPE2",
i_CLK=0,
i_GSR=0,
i_GTS=0,
i_KEYCLEARB=0,
i_PACK=1,
i_USRCCLKO=j2s.clk.o,
i_USRCCLKTS=~j2s.clk.oe,
i_USRDONEO=1,
i_USRDONETS=1)
]
def __init__(self, platform):
platform.toolchain.bitgen_opt += " -g compress -g UnusedPin:Pullup"
self.submodules.j2s = j2s = JTAG2SPI(platform.request("spiflash"))
self.specials += [
mg.Instance(
self.macro,
o_SHIFT=j2s.jtag.shift, o_SEL1=j2s.jtag.sel,
o_CAPTURE=j2s.jtag.capture,
o_DRCK1=j2s.jtag.tck,
o_TDI=j2s.jtag.tdi, i_TDO1=j2s.jtag.tdo,
i_TDO2=0),
]
platform.add_period_constraint(j2s.jtag.tck, 6)
def __init__(self, platform):
platform.toolchain.bitgen_opt += " -g compress -g UnusedPin:Pullup"
self.submodules.j2s = j2s = JTAG2SPI(platform.request("spiflash"))
self.specials += [
mg.Instance("BSCAN_SPARTAN6",
p_JTAG_CHAIN=1,
o_SHIFT=j2s.jtag.shift,
o_SEL=j2s.jtag.sel,
o_CAPTURE=j2s.jtag.capture,
o_TCK=j2s.jtag.tck,
o_TDI=j2s.jtag.tdi,
i_TDO=j2s.jtag.tdo),
]
def __init__(self, platform):
platform.toolchain.bitgen_opt += " -g compress -g UnusedPin:Pullup"
self.submodules.j2s = j2s = JTAG2SPI(platform.request("spiflash"))
# clk = mg.Signal()
self.specials += [
mg.Instance(
"BSCAN_SPARTAN6", p_JTAG_CHAIN=1,
o_SHIFT=j2s.jtag.shift, o_SEL=j2s.jtag.sel,
o_CAPTURE=j2s.jtag.capture,
o_DRCK=j2s.jtag.tck,
o_TDI=j2s.jtag.tdi, i_TDO=j2s.jtag.tdo),
# mg.Instance("BUFG", i_I=clk, o_O=j2s.jtag.tck)
]
platform.add_period_constraint(j2s.jtag.tck, 6)
