67 lines
2.3 KiB
Python
67 lines
2.3 KiB
Python
|
import os
|
||
|
|
import subprocess
|
||
|
|
|
||
|
|
from amaranth.build import *
|
||
|
|
from amaranth.vendor.lattice_ice40 import *
|
||
|
|
from .resources import *
|
||
|
|
|
||
|
|
|
||
|
|
__all__ = ["ICE40UP5KBEVNPlatform"]
|
||
|
|
|
||
|
|
|
||
|
|
class ICE40UP5KBEVNPlatform(LatticeICE40Platform):
|
||
|
|
device = "iCE40UP5K"
|
||
|
|
package = "SG48"
|
||
|
|
default_clk = "clk12"
|
||
|
|
resources = [
|
||
|
|
# J51 must be connected to use clk12 (it is by default)
|
||
|
|
Resource("clk12", 0, Pins("35", dir="i"),
|
||
|
|
Clock(12e6), Attrs(GLOBAL=True, IO_STANDARD="SB_LVCMOS")),
|
||
|
|
|
||
|
|
# 3 LEDs are present in an RGB common-anode package.
|
||
|
|
*LEDResources(
|
||
|
|
pins="39 40 41", invert=True,
|
||
|
|
attrs=Attrs(IO_STANDARD="SB_LVCMOS")
|
||
|
|
),
|
||
|
|
Resource("led_b", 0, PinsN("39", dir="o"),
|
||
|
|
Attrs(IO_STANDARD="SB_LVCMOS")),
|
||
|
|
Resource("led_g", 0, PinsN("40", dir="o"),
|
||
|
|
Attrs(IO_STANDARD="SB_LVCMOS")),
|
||
|
|
Resource("led_r", 0, PinsN("41", dir="o"),
|
||
|
|
Attrs(IO_STANDARD="SB_LVCMOS")),
|
||
|
|
|
||
|
|
# 4 DIP switches are available, requiring internal pull-ups.
|
||
|
|
# The switches' "ON" label points to the position which
|
||
|
|
# connects them to ground, so invert the inputs.
|
||
|
|
*SwitchResources(pins="23 25 34 43", invert=True,
|
||
|
|
attrs=Attrs(IO_STANDARD="SB_LVCMOS", PULLUP=1)
|
||
|
|
),
|
||
|
|
|
||
|
|
*SPIFlashResources(0,
|
||
|
|
cs_n="16", clk="15", copi="14", cipo="17",
|
||
|
|
attrs=Attrs(IO_STANDARD="SB_LVCMOS")
|
||
|
|
),
|
||
|
|
]
|
||
|
|
connectors = [
|
||
|
|
Connector("aardvark", 0, # J1
|
||
|
|
"- - - - 14 - 15 17 16 -"),
|
||
|
|
Connector("pmod", 0, # U6 (board), U11 (schematic)
|
||
|
|
"16 14 17 15 - - 27 26 32 31 - -"),
|
||
|
|
Connector("j", 0, # 'Header A' (J52)
|
||
|
|
"- - 39 14 40 17 - 15 41 16 - -"),
|
||
|
|
Connector("j", 1, # 'Header B' (J2)
|
||
|
|
"- - 23 - 25 - 26 36 27 42 32 38 31 28 37 15 34 - 43 -"),
|
||
|
|
Connector("j", 2, # 'Header C' (J3)
|
||
|
|
"- 12 3 21 3 13 48 20 45 19 47 18 44 11 46 10 2 9 - 6"),
|
||
|
|
]
|
||
|
|
|
||
|
|
def toolchain_program(self, products, name):
|
||
|
|
iceprog = os.environ.get("ICEPROG", "iceprog")
|
||
|
|
with products.extract("{}.bin".format(name)) as bitstream_fn:
|
||
|
|
subprocess.check_call([iceprog, bitstream_fn])
|
||
|
|
|
||
|
|
|
||
|
|
if __name__ == "__main__":
|
||
|
|
from .test.blinky import *
|
||
|
|
ICE40UP5KBEVNPlatform().build(Blinky(), do_program=True)
|