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Patch name: patch.start-cmd-Z
Author: Bryce Denney (bryce@tlw.com)
Date: Wed Jun 12 18:39:21 EDT 2002

Detailed description:
As written, there's no way to start the application after you've entered the
boot loader.  The only way is to power down, move a jumper or something
to change the value on PD4, and power up again.  This is ridiculous.

Add a 'Z' command which jumps to application code.

Patch was created with:
  diff -u
Apply patch to:
  avr109.zip source code
Instructions:
  Type "patch < THIS_PATCH_FILE".
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Index: main.c
===================================================================
RCS file: /usr/src/CVSROOT/designs/avr109/main.c,v
retrieving revision 1.1.4.3
diff -u -b -r1.1.4.3 main.c
--- main.c	2002/03/04 08:41:51	1.1.4.3
+++ main.c	2002/06/12 18:24:38
@@ -309,6 +309,12 @@
           sendchar(sig_byte1);
         }       
 
+        else if (val=='Z')                      // Start application
+        {
+          sendchar('\r');
+          funcptr();                        // Jump to Reset vector 0x0000 in Application Section
+        }
+
         else if(val!=0x1b)                  // if not esc
         {
           sendchar('?');