From: Luke Kenneth Casson Leighton <lkcl@lkcl.net>
Date: Fri, 19 Nov 2021 13:17:27 +0000 (+0000)
Subject: return None if data returned is empty
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=ac021379fe1bb2cc7cc1ee02af11d5e38f1a8f8a;p=soc.git

return None if data returned is empty
---

diff --git a/src/soc/debug/jtagutils.py b/src/soc/debug/jtagutils.py
index a642bd1f..79418e28 100644
--- a/src/soc/debug/jtagutils.py
+++ b/src/soc/debug/jtagutils.py
@@ -157,7 +157,7 @@ class JTAGServer:
 
     def jtagremote_server_recv(self, tdo):
         data = self.get_data(1, 0) # read 1 byte, non-blocking
-        if data is None:
+        if data is None or len(data) == 0:
             return None # no data read
         data = bytes.decode(data)
         if self.debug: