From: Ivan Grokhotkov <ivan@espressif.com>
Date: Mon, 8 Jun 2020 21:13:28 +0000 (+0200)
Subject: blackice_ii: fix UART RTS/CTS direction.
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=f1aeee1d1b8b23cc59234d359d0c44c0a99fa86e;p=nmigen-boards.git

blackice_ii: fix UART RTS/CTS direction.

Pin numbers match the P0/P1 signals in the schematic, but the
direction is reversed. Fix by setting role="dce".

Ref. https://github.com/mystorm-org/BlackIce-II/blob/master/hardware/BlackIce.pdf
---

diff --git a/nmigen_boards/blackice_ii.py b/nmigen_boards/blackice_ii.py
index a679bda..2187d60 100644
--- a/nmigen_boards/blackice_ii.py
+++ b/nmigen_boards/blackice_ii.py
@@ -30,7 +30,8 @@ class BlackIceIIPlatform(LatticeICE40Platform):
 
         UARTResource(0,
             rx="88", tx="85", rts="91", cts="94",
-            attrs=Attrs(IO_STANDARD="SB_LVCMOS", PULLUP=1)
+            attrs=Attrs(IO_STANDARD="SB_LVCMOS", PULLUP=1),
+            role="dce"
         ),
 
         SRAMResource(0,