Add ICE40UP5K-B-EVN.

diff --git a/nmigen_boards/ice40_up5k_b_evn.py b/nmigen_boards/ice40_up5k_b_evn.py
new file mode 100644 (file)
index 0000000..e931790
--- /dev/null
+++ b/nmigen_boards/ice40_up5k_b_evn.py
@@ -0,0 +1,66 @@
+import os
+import subprocess
+
+from nmigen.build import *
+from nmigen.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="16", clk="15", mosi="14", miso="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)