mister/de10-nano: In order to detect clock-stretching, i2c clock lines must be bidirectional

galibert · whitequark · commit a1da1f52831d · 2023-02-21T09:48:53.000Z
diff --git a/amaranth_boards/de10_nano.py b/amaranth_boards/de10_nano.py
@@ -58,7 +58,7 @@ class DE10NanoPlatform(IntelPlatform):
             Subsignal("mclk", Pins("U11", dir="o")),
             Subsignal("lrclk", Pins("T11", dir="o")),
             Subsignal("sclk", Pins("T12", dir="o")),
-            Subsignal("scl", Pins("U10", dir="o")),
+            Subsignal("scl", Pins("U10", dir="io")),
             Subsignal("sda", Pins("AA4", dir="io")),
             Attrs(io_standard="3.3-V LVTTL")),
     ]
diff --git a/amaranth_boards/mister.py b/amaranth_boards/mister.py
@@ -58,7 +58,7 @@ class MisterPlatform(IntelPlatform):
             Subsignal("mclk", Pins("U11", dir="o")),
             Subsignal("lrclk", Pins("T11", dir="o")),
             Subsignal("sclk", Pins("T12", dir="o")),
-            Subsignal("scl", Pins("U10", dir="o")),
+            Subsignal("scl", Pins("U10", dir="io")),
             Subsignal("sda", Pins("AA4", dir="io")),
             Attrs(io_standard="3.3-V LVTTL")),
 

Original file line number	Diff line number	Diff line change
`@@ -58,7 +58,7 @@ class DE10NanoPlatform(IntelPlatform):`
`58`	`58`	`Subsignal("mclk", Pins("U11", dir="o")),`
`59`	`59`	`Subsignal("lrclk", Pins("T11", dir="o")),`
`60`	`60`	`Subsignal("sclk", Pins("T12", dir="o")),`
`61`		`- Subsignal("scl", Pins("U10", dir="o")),`
	`61`	`+ Subsignal("scl", Pins("U10", dir="io")),`
`62`	`62`	`Subsignal("sda", Pins("AA4", dir="io")),`
`63`	`63`	`Attrs(io_standard="3.3-V LVTTL")),`
`64`	`64`	`]`