Add DE0-Nano.

Author: DavideRuzza

amaranth_boards/de0nano.py

@@ -0,0 +1,79 @@
+import os
+import subprocess
+
+from amaranth.build import *
+from amaranth.vendor import IntelPlatform
+from .resources import *
+
+
+__all__ = ["DE0NanoPlatform"]
+
+
+class DE0NanoPlatform(IntelPlatform):
+    device      = "EP4CE22" # Cyclone IV 22K LEs
+    package     = "F17"   # FBGA-17
+    speed       = "C6"
+    default_clk = "clk50"
+    resources   = [
+        Resource("clk50", 0, Pins("R8", dir="i"),
+                 Clock(50e6), Attrs(io_standard="3.3-V LVCMOS")),
+
+        *LEDResources(
+            pins="A15 A13 B13 A11 D1 F3 B1 L3",
+            attrs=Attrs(io_standard="3.3-V LVCMOS")),
+        *ButtonResources(
+            pins="J15 E1", invert=True,
+            attrs=Attrs(io_standard="3.3-V LVCMOS")),
+        *SwitchResources(
+            pins="M1 T8 B9 M15",
+            attrs=Attrs(io_standard="3.3-V LVCMOS")),
+
+        SDRAMResource(0,
+            clk="R4", cke="L7", cs_n="P6", we_n="C2", ras_n="L2", cas_n="L1",
+            ba="M7 M6", a="P2 N5 N6 M8 P8 T7 N8 T6 R1 P1 N2 N1 L4",
+            dq="G2 G1 L8 K5 K2 J2 J1 R7 T4 T2 T3 R3 R5 P3 N3 K1", dqm="R6 T5",
+            attrs=Attrs(io_standard="3.3-V LVCMOS")),
+        
+        I2CResource(0, scl="F2", sda="F1",
+                    attrs=Attrs(io_standard="3.3-V LVCMOS")),
+        
+        Resource("adxl345", 0,
+            Subsignal("scl",         Pins("F2"), Attrs(IOSTANDARD="I2C")),
+            Subsignal("sda",         Pins("F1"), Attrs(IOSTANDARD="I2C")),
+            Subsignal("G_sens_int",  Pins("M2", dir='i')),
+            Subsignal("G_sens_cn_n", Pins("G5")),
+            Attrs(io_standard="3.3-V LVCMOS"),
+        ),
+        SPIResource("spi_adc", 0, role="controller",
+            cs_n="A10", clk="B14", copi="A9", cipo="B10",
+            attrs=Attrs(io_standard="3.3-V LVCMOS"),
+        ),
+    ]
+    connectors  = [
+        Connector("gpio", 0,
+            "A8  D3  B8  C3  A2  A3  B3  B4  A4  B5 "
+            "-   -   A5  D5  B6  A6  B7  D6  A7  C6 "
+            "C8  E6  E7  D8  E8  F8  F9  E9  -   -  "
+            "C9  D9  E11 E10 C11 B11 A12 D11 D12 B12"),
+
+        Connector("gpio", 1,
+            "T9  F13 R9  T15 T14 T13 R13 T12 R12 T11"
+            "-   -   T10 R11 P11 R10 N12 P9  N9  N11" 
+            "L16 K16 R16 L15 P15 P16 R14 N16 -   -  "
+            "N15 P14 L14 N14 M10 L13 J16 K15 J13 J14"),
+        
+        Connector("gpio", 2,
+            "-   E15 E16 M16 A14 B16 C14 C16 C15" 
+            "D16 D15 D14 F15 F16 F14 G16 G15"),
+    ]
+
+    def toolchain_program(self, products, name):
+        quartus_pgm = os.environ.get("QUARTUS_PGM", "quartus_pgm")
+        with products.extract("{}.sof".format(name)) as bitstream_filename:
+            subprocess.check_call([quartus_pgm, "--haltcc", "--mode", "JTAG",
+                                   "--operation", "P;" + bitstream_filename])
+
+
+if __name__ == "__main__":
+    from .test.blinky import Blinky
+    DE0NanoPlatform().build(Blinky(), do_program=True)