Initial version of tcctool - a utility for talking to Telechips TCC77x-based devices in USB boot mode, allowing code to be uploaded to RAM and run via USB, without any danger of bricking. When your uploaded code crashes, just power-cycle the device and it is back to normal. Requires libusb.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@15217 a1c6a512-1295-4272-9138-f99709370657

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+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id$
+ *
+ ****************************************************************************/
+
+tcctool
+-------
+
+tcctool is a utility for uploading code to Telechips TCC77x based
+devices in USB boot mode.
+
+It has been tested on the iaudio 7 and Logik DAX DAB/MP3 Player, but
+should work on other devices if the appropriate magic value is
+identified from existing "firmware recovery" programs - see the
+"devices" array in tcctool.c
+
+It can be used for safely testing firmware images before performing a
+firmware upgade.
+
+A first test when using tcctool on a new device can be to upload the
+original firmware.  If you do this, make sure you upload the same
+version that is installed on your player - otherwise you may find
+yourself with corrupted config files and music database.