From ab4806984b95e7e2f109aade790973abb1e769d0 Mon Sep 17 00:00:00 2001
From: Chandler Jearls <cjearls@vt.edu>
Date: Sun, 2 May 2021 22:02:45 +0000
Subject: [PATCH] Something must have been wired incorrectly before. Now, the
 USB-UART is working correctly without any issues

Signed-off-by: Chandler Jearls <cjearls@vt.edu>
---
 xc7/picosoc_demo/README.rst    | 4 ----
 xc7/picosoc_demo/nexys4ddr.pcf | 4 ++--
 xc7/picosoc_demo/nexys4ddr.v   | 7 +------
 3 files changed, 3 insertions(+), 12 deletions(-)

diff --git a/xc7/picosoc_demo/README.rst b/xc7/picosoc_demo/README.rst
index b19f65d..d2f92b9 100644
--- a/xc7/picosoc_demo/README.rst
+++ b/xc7/picosoc_demo/README.rst
@@ -71,10 +71,6 @@ The UART output should look as follows:
 
    PicoSoC uses baud rate of ``460800`` by default.
 
-.. note::
-
-   On the Nexys4DDR, the USB-UART does not work, so UART can be accessed from pins 1 and 2 of PMOD C.
-
 The board's LED should blink at a regular rate from left to the right
 
 .. image:: ../../docs/images/picosoc-example-basys3.gif
diff --git a/xc7/picosoc_demo/nexys4ddr.pcf b/xc7/picosoc_demo/nexys4ddr.pcf
index df383f1..4a0056a 100644
--- a/xc7/picosoc_demo/nexys4ddr.pcf
+++ b/xc7/picosoc_demo/nexys4ddr.pcf
@@ -2,8 +2,8 @@
 set_io clk E3
 
 # UART rx and tx are assigned to pins 1 and 2 of the PMOD Jumper C
-set_io rx K1
-set_io tx F6
+set_io rx C4
+set_io tx D4
 
 # LEDs
 set_io led[0] H17
diff --git a/xc7/picosoc_demo/nexys4ddr.v b/xc7/picosoc_demo/nexys4ddr.v
index b8c3301..63db400 100644
--- a/xc7/picosoc_demo/nexys4ddr.v
+++ b/xc7/picosoc_demo/nexys4ddr.v
@@ -23,15 +23,10 @@ module top (
 	output tx,
 	input rx,
 
-    	input [15:0] sw,
+    input [15:0] sw,
 	output [15:0] led,
-	output uart_cts,
-	output uart_rts
 );
 
-	assign uart_cts = 1'b0;
-	assign uart_rts = 1'b0;
-
 	wire clk_bufg;
 	BUFG bufg (.I(clk), .O(clk_bufg));