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fix global , and allow easy subclassing of Platform #81

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fix global , and allow easy subclassing of Platform #81

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6 changes: 6 additions & 0 deletions nmigen/build/plat.py
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Original file line number Diff line number Diff line change
Expand Up @@ -85,6 +85,12 @@ def __init__(self):

self._prepared = False

self.extend()

def extend(self):
"add resources and config in subclass"
pass

def add_file(self, filename, content):
if not isinstance(filename, str):
raise TypeError("File name must be a string")
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2 changes: 1 addition & 1 deletion nmigen/vendor/board/tinyfpga_bx.py
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Expand Up @@ -13,7 +13,7 @@ class TinyFPGABXPlatform(TinyProgrammerMixin, LatticeICE40Platform):
]
resources = [
Resource("clk16", 0, Pins("B2", dir="i"),
extras={"GLOBAL": 1, "IO_STANDARD": "SB_LVCMOS33"}),
extras={"GLOBAL": "1", "IO_STANDARD": "SB_LVCMOS33"}),

Resource("user_led", 0, Pins("B3", dir="o"), extras={"IO_STANDARD": "SB_LVCMOS33"}),

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