From 8705ddc81b001d7f79ed94e9aa34b792cfdd4481 Mon Sep 17 00:00:00 2001
From: Uwe Hermann <uwe@hermann-uwe.de>
Date: Tue, 3 Dec 2013 14:46:23 +0100
Subject: [PATCH] uart: Display non-ASCII characters properly.

We use the [XX] notation for non-printable characters, which is what
various other logic analyzer software packages do too, e.g. the
CWAV USBee Suite.

This fixes bug #201.
---
 decoders/uart/pd.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/decoders/uart/pd.py b/decoders/uart/pd.py
index f010480..d71fc23 100644
--- a/decoders/uart/pd.py
+++ b/decoders/uart/pd.py
@@ -222,7 +222,8 @@ class Decoder(srd.Decoder):
 
         b, f = self.databyte[rxtx], self.options['format']
         if f == 'ascii':
-            self.putx(rxtx, [rxtx, [chr(b)]])
+            c = chr(b) if chr(b).isprintable() else '[%02X]' % b
+            self.putx(rxtx, [rxtx, [c]])
         elif f == 'dec':
             self.putx(rxtx, [rxtx, [str(b)]])
         elif f == 'hex':
-- 
2.30.2