Rename nMigen to Amaranth HDL.

1 files changed, 75 insertions, 0 deletions

diff --git a/amaranth_boards/icebreaker.py b/amaranth_boards/icebreaker.py
new file mode 100644
index 0000000..687ea16
--- /dev/null
+++ b/amaranth_boards/icebreaker.py
@@ -0,0 +1,75 @@
+import os
+import subprocess
+
+from amaranth.build import *
+from amaranth.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_n="16", clk="15", copi="14", cipo="17", wp_n="12", hold_n="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)