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import os
import subprocess
from amaranth.build import *
from amaranth.vendor import LatticeMachXO3LPlatform
from .resources import *
__all__ = ["MachXO3SKPlatform"]
class MachXO3SKPlatform(LatticeMachXO3LPlatform):
device = "LCMXO3LF-6900C"
package = "BG256"
speed = "5"
default_clk = "clk12"
resources = [
Resource("clk12", 0, Pins("C8", dir="i"),
Clock(12e6), Attrs(IO_TYPE="LVCMOS33")
),
UARTResource(0,
rx="A11", tx="C11", rts="F10", cts="D11", dtr="B11", dsr="A12", dcd="B13", ri="A14",
attrs=Attrs(IO_TYPE="LVCMOS33"), role="dce"
), # need to solder R14-R18, R20-R22
*LEDResources(
pins="H11 J13 J11 L12 K11 L13 N15 P16",
invert=True, attrs=Attrs(IO_TYPE="LVCMOS33")
), # D9..D2
*ButtonResources(pins="B3", invert=True, attrs=Attrs(IO_TYPE="LVCMOS33")),
*SwitchResources(pins="N2 P1 M3 N1",
invert=True, attrs=Attrs(IO_TYPE="LVCMOS33")
), # SW2
*SPIFlashResources(0,
cs_n="R5", clk="P6", copi="T13", cipo="T6",
attrs=Attrs(IO_TYPE="LVCMOS33")
),
]
connectors = [
Connector("j", 3, # J3
"- - A13 C13 F8 B12 C12 E11 E10 D10 "
"- - F9 C10 E8 E9 E7 D8 D7 C7 "
"- - C5 D6 E6 C4 A10 F7 D9 B9 "
"- - B6 B7 B5 A5 B4 A4 - A3 "),
Connector("j", 4, # J4
"- - K12 K13 M14 N14 L14 N16 M15 M16 "
"- - L15 L16 K14 K16 K15 J14 H14 J15 "
"- - J16 H15 H16 G15 G16 F15 F16 E15 "
"- - E16 E14 D16 C15 D14 F14 G14 B16 "),
Connector("j", 6, # J6
"- - T12 T14 R11 R13 T11 M11 P11 N10 "
"- - T10 P10 R9 R10 T9 N9 P9 M8 "
"- - T8 L8 P8 M6 R7 R8 P7 T7 "
"- - L7 R6 N6 T5 R4 P4 T3 T4 "),
Connector("j", 8, # J8
"- - H6 N3 M2 M1 L2 L1 L3 L5 "
"- - K4 J1 K1 J2 J3 H3 H2 H1 "
"- - G2 G1 F2 F1 E2 E1 D2 D1 "
"- - C2 C1 G3 B1 D3 E3 F3 F5 "),
]
def toolchain_program(self, products, name):
openFPGALoader = os.environ.get("OPENFPGALOADER", "openFPGALoader")
with products.extract("{}.bit".format(name)) as bitstream_filename:
subprocess.check_call([openFPGALoader, bitstream_filename])
if __name__ == "__main__":
from .test.blinky import *
MachXO3SKPlatform().build(Blinky(), do_program=True)
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