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import os
import subprocess
from nmigen.build import *
from nmigen.vendor.lattice_ice40 import *
from .resources import *
__all__ = ["ICEBreakerPlatform"]
class ICEBreakerPlatform(LatticeICE40Platform):
device = "iCE40UP5K"
package = "SG48"
default_clk = "clk12"
resources = [
Resource("clk12", 0, Pins("35", dir="i"),
Clock(12e6), Attrs(GLOBAL=True, IO_STANDARD="SB_LVCMOS")),
*LEDResources(pins="11 37", invert=True, attrs=Attrs(IO_STANDARD="SB_LVCMOS")),
# Semantic aliases
Resource("led_r", 0, PinsN("11", dir="o"), Attrs(IO_STANDARD="SB_LVCMOS")),
Resource("led_g", 0, PinsN("37", dir="o"), Attrs(IO_STANDARD="SB_LVCMOS")),
*ButtonResources(pins="10", invert=True, attrs=Attrs(IO_STANDARD="SB_LVCMOS")),
UARTResource(0,
rx="6", tx="9",
attrs=Attrs(IO_STANDARD="SB_LVTTL", PULLUP=1)
),
*SPIFlashResources(0,
cs="16", clk="15", copi="14", cipo="17", wp="12", hold="13",
attrs=Attrs(IO_STANDARD="SB_LVCMOS")
),
]
connectors = [
Connector("pmod", 0, " 4 2 47 45 - - 3 48 46 44 - -"), # PMOD1A
Connector("pmod", 1, "43 38 34 31 - - 42 36 32 28 - -"), # PMOD1B
Connector("pmod", 2, "27 25 21 19 - - 26 23 20 18 - -"), # PMOD2
]
# The attached LED/button section can be either used standalone or as a PMOD.
# Attach to platform using:
# p.add_resources(p.break_off_pmod)
# pmod_btn = plat.request("user_btn")
break_off_pmod = [
*LEDResources(pins={2: "7", 3: "1", 4: "2", 5: "8", 6: "3"}, conn=("pmod", 2),
attrs=Attrs(IO_STANDARD="SB_LVCMOS")),
# Semantic aliases
Resource("led_r", 1, Pins("7", dir="o", conn=("pmod", 2)),
Attrs(IO_STANDARD="SB_LVCMOS")),
Resource("led_g", 1, Pins("1", dir="o", conn=("pmod", 2)),
Attrs(IO_STANDARD="SB_LVCMOS")),
Resource("led_g", 2, Pins("2", dir="o", conn=("pmod", 2)),
Attrs(IO_STANDARD="SB_LVCMOS")),
Resource("led_g", 3, Pins("8", dir="o", conn=("pmod", 2)),
Attrs(IO_STANDARD="SB_LVCMOS")),
Resource("led_g", 4, Pins("3", dir="o", conn=("pmod", 2)),
Attrs(IO_STANDARD="SB_LVCMOS")),
*ButtonResources(pins={1: "9", 2: "4", 3: "10"}, conn=("pmod", 2),
attrs=Attrs(IO_STANDARD="SB_LVCMOS")),
]
def toolchain_program(self, products, name):
iceprog = os.environ.get("ICEPROG", "iceprog")
with products.extract("{}.bin".format(name)) as bitstream_filename:
subprocess.check_call([iceprog, bitstream_filename])
if __name__ == "__main__":
from .test.blinky import *
p = ICEBreakerPlatform()
p.add_resources(p.break_off_pmod)
p.build(Blinky(), do_program=True)
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