diff --git a/pdtrace.sch b/pdtrace.sch
index 656af16..1d78581 100644
--- a/pdtrace.sch
+++ b/pdtrace.sch
@@ -1,22 +1,1094 @@
-v 20210626 2
-C 0 0 1 0 0 title.sym
+v 20210731 2
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 date=$date$
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 org=CuVoodoo
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 authors=King Kévin
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-title=TITLE
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+title=PDtrace
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 version=$version$
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 revision=$revision$
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+}
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+T -3600 0 9 10 1 0 0 0 5
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+IO45, internal pull-down, VDD_SPI = 3.3V
+IO46, internal pull-down, must be 0
+IO0, external pull-up, boot 1=SPI 0=download
+
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+{
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