From 3188fdefa5574e83ac86270e0b9088e1bfb838d5 Mon Sep 17 00:00:00 2001
From: saji <saji@saji.dev>
Date: Sat, 21 Sep 2024 22:33:47 -0500
Subject: [PATCH] wip: test works, bypass amaranth-boards not working

---
 .../platforms/colorlight_5a75b_v8_2.py        | 38 ++++++++++---------
 tests/test_platform.py                        | 26 +++++++++++++
 2 files changed, 46 insertions(+), 18 deletions(-)
 create mode 100644 tests/test_platform.py

diff --git a/src/groovylight/platforms/colorlight_5a75b_v8_2.py b/src/groovylight/platforms/colorlight_5a75b_v8_2.py
index f992258..d22a7e2 100644
--- a/src/groovylight/platforms/colorlight_5a75b_v8_2.py
+++ b/src/groovylight/platforms/colorlight_5a75b_v8_2.py
@@ -2,7 +2,7 @@ import os
 import subprocess
 from amaranth.vendor import LatticeECP5Platform
 from amaranth.build import Resource, Pins, Attrs, Clock, Subsignal, PinsN, Connector
-from amaranth_boards.resources import SDRAMResource
+# from amaranth_boards.resources import SDRAMResource, LEDResources, ButtonResources
 
 
 class Colorlight_5A75B_R82Platform(LatticeECP5Platform):
@@ -23,23 +23,25 @@ class Colorlight_5A75B_R82Platform(LatticeECP5Platform):
             Subsignal("copi", Pins("T8", dir="o")),
             Attrs(IO_TYPE="LVCMOS33"),
         ),
-        Resource("usr_btn", 0, Pins("R7", dir="i"), Attrs(IO_TYPE="LVCMOS33")),
-        Resource("usr_led", 0, Pins("T6", dir="o"), Attrs(IO_TYPE="LVCMOS33")),
-        SDRAMResource(
-            0,
-            clk="C8",
-            we_n="B5",
-            cas_n="A6",
-            ras_n="B6",
-            ba="B7 A8",
-            a="A9 B9 B10 C10 D9 C9 E9 D8 E8 C7 B8",
-            dq="B2 A2 C3 A3 B3 A4 B4 A5 E7 C6 D7 D6 "
-            "E6 D5 C5 E5 A11 B11 B12 A13 B13 A14 B14 D14 D13 "
-            "E11 C13 D11 C12 D10 C11 D10",
-            attrs=Attrs(
-                PULLMODE="NONE", DRIVE="4", SLEWRATE="FAST", IO_TYPE="LVCMOS33"
-            ),
-        ),
+        Resource("led", 0, PinsN("T6", dir="o"), Attrs(IO_TYPE="LVCMOS33")),
+        # *ButtonResources(
+        #     pins="R7", invert=True, attrs=Attrs(IO_TYPE="LVCMOS33", PULLMODE="UP")
+        # ),
+        # SDRAMResource(
+        #     0,
+        #     clk="C8",
+        #     we_n="B5",
+        #     cas_n="A6",
+        #     ras_n="B6",
+        #     ba="B7 A8",
+        #     a="A9 B9 B10 C10 D9 C9 E9 D8 E8 C7 B8",
+        #     dq="B2 A2 C3 A3 B3 A4 B4 A5 E7 C6 D7 D6 "
+        #     "E6 D5 C5 E5 A11 B11 B12 A13 B13 A14 B14 D14 D13 "
+        #     "E11 C13 D11 C12 D10 C11 D10",
+        #     attrs=Attrs(
+        #         PULLMODE="NONE", DRIVE="4", SLEWRATE="FAST", IO_TYPE="LVCMOS33"
+        #     ),
+        # ),
         Resource(
             "eth_rgmii",
             0,
diff --git a/tests/test_platform.py b/tests/test_platform.py
new file mode 100644
index 0000000..cfd74aa
--- /dev/null
+++ b/tests/test_platform.py
@@ -0,0 +1,26 @@
+from amaranth import Elaboratable, Module, Signal
+from amaranth.lib.io import Buffer
+from groovylight.platforms.colorlight_5a75b_v8_2 import Colorlight_5A75B_R82Platform
+
+
+class Blinky(Elaboratable):
+    def elaborate(self, platform):
+        m = Module()
+
+        m.submodules.led = led = Buffer("o", platform.request("led", dir="-"))
+        state = Signal()
+        counter = Signal(24)
+
+        with m.If(counter == 0):
+            m.d.sync += [counter.eq(~0), state.eq(~state)]
+        with m.Else():
+            m.d.sync += counter.eq(counter - 1)
+
+        m.d.comb += led.o.eq(state)
+
+        return m
+
+
+def test_platform():
+    plat = Colorlight_5A75B_R82Platform()
+    plat.build(Blinky())