Merge pull request #20 from tehmaze/gadelavega-mergepr-19

Gadelavega mergepr 19

README.rst

@@ -44,6 +44,14 @@ For more information, take a look at the documentation_.
 Changes
 =======
 
+0.4.3:
+  * bugfix: ``putc()`` callback was called in series, 3 times for each part of
+    xmodem block header, data, and checksum during block transfer.  Now all
+    three data blocks are sent by single ``putc()`` call.  This resolves issues
+    when integrating with microcontrollers or equipment sensitive to timing
+    issues at stream boundaries, `PR #19
+    <https://github.com/tehmaze/xmodem/pull/19>`_.
+
 0.4.2:
   * bugfix: documentation files missing from the release tarball
     `Issue #16 <https://github.com/tehmaze/xmodem/issues/16>`_.

setup.py

@@ -7,7 +7,7 @@
 
 setup(
     name='xmodem',
-    version='0.4.2',
+    version='0.4.3',
     author='Wijnand Modderman, Jeff Quast',
     author_email='maze@pyth0n.org',
     description=('XMODEM protocol implementation.'),

xmodem/__init__.py

@@ -112,7 +112,7 @@
 __copyright__ = ['Copyright (c) 2010 Wijnand Modderman',
                  'Copyright (c) 1981 Chuck Forsberg']
 __license__ = 'MIT'
-__version__ = '0.4.0'
+__version__ = '0.4.3'
 
 import platform
 import logging
@@ -302,9 +302,7 @@ def callback(total_packets, success_count, error_count)
             # emit packet
             while True:
                 self.log.debug('send: block %d', sequence)
-                self.putc(header)
-                self.putc(data)
-                self.putc(checksum)
+                self.putc(header + data + checksum)
                 char = self.getc(1, timeout)
                 if char == ACK:
                     success_count += 1