Add iCEBreaker Bitsy.

1 files changed, 51 insertions, 0 deletions

diff --git a/nmigen_boards/icebreaker_bitsy.py b/nmigen_boards/icebreaker_bitsy.py
new file mode 100644
index 0000000..da5219d
--- /dev/null
+++ b/nmigen_boards/icebreaker_bitsy.py
@@ -0,0 +1,51 @@
+import os
+import subprocess
+
+from nmigen.build import *
+from nmigen.vendor.lattice_ice40 import *
+from .resources import *
+
+
+__all__ = ["ICEBreakerBitsyPlatform"]
+
+
+class ICEBreakerBitsyPlatform(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")),
+
+        DirectUSBResource(0, d_p="42", d_n="38", pullup="37",
+            attrs=Attrs(IO_STANDARD="SB_LVCMOS")),
+
+        *SPIFlashResources(0,
+            cs="16", clk="15", copi="14", cipo="17", wp="18", hold="19",
+            attrs=Attrs(IO_STANDARD="SB_LVCMOS")
+        ),
+
+        RGBLEDResource(0, r="39", g="40", b="41", invert=True,
+            attrs=Attrs(IO_STANDARD="SB_LVCMOS")),
+        *LEDResources(pins="25 6", invert=True, attrs=Attrs(IO_STANDARD="SB_LVCMOS")),
+        Resource("led_r", 0, PinsN("25", dir="o"), Attrs(IO_STANDARD="SB_LVCMOS")),
+        Resource("led_g", 0, PinsN("6", dir="o"), Attrs(IO_STANDARD="SB_LVCMOS")),
+
+        *ButtonResources(pins="2", invert=True, attrs=Attrs(IO_STANDARD="SB_LVCMOS")),
+    ]
+    connectors = [
+        Connector("edge", 0,  # Pins bottom P0 - P12,
+            "47 44 48 45  4  3  9 10 11 12 21 13"
+            "20 25 23 27 26 28 31 32 34 36 43 46"
+        )
+    ]
+
+    def toolchain_program(self, products, name):
+        dfu_util = os.environ.get("DFU_UTIL", "dfu-util")
+        with products.extract("{}.bin".format(name)) as bitstream_filename:
+            subprocess.check_call([dfu_util, "-d", "1209:6146", "-a", "0", "-D", bitstream_filename])
+
+
+if __name__ == "__main__":
+    from .test.blinky import *
+    ICEBreakerBitsyPlatform().build(Blinky(), do_program=True)