AVR Starter Kit MCU00100 Upgrade Kit Version 7.5 
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This kit contains all you need to upgrade your MCU00100 Starter
Kit or AT90S1200DEV version B Development Board.

The kit make the board capable of programming more devices, and
fixes a bug in AT89S8252 EEPROM programming

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*    Target boards:     *
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This kit should be used to upgrade MCU00100 Starter Kits and 
AVR Development Board AT90S1200DEV Revision B ONLY!

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*  WARNING TO AT90S1200DEV Development Board Owners   *
*******************************************************
THIS KIT SUPPORTS HARDWARE REVISION B ONLY! THIS UPGRADE KIT
MUST NEVER BE USED TO UPGRADE OLD DEVELOPMENT BOARDS WITH
HARDWARE REVISION A.  OLDER BOARDS HAVE MAJOR HARDWARE
DIFFERENCES.  IF YOU TRY TO UPGRADE REV. A BOARDS, THE BOARD
WILL NOT FUNCTION PROPERLY.

Identifying board revision:
Most development boards have a hardware revision code written
on them.  The following codes exist:
A9602.3.1000.A    <- Rev A. OLD board, DO NOT UPGRADE!
A96021000b        <- Rev B, OK to upgrade

If you can't find the revision code on your board, you can look
at the eight LEDs and eight bush-buttons.  If these are on the
same edge, you have a new Rev. B board.  If the LEDs and buttons
are on opposite edges, the board you have is the old Rev. A
board.

Note on Rev. A boards: These boards are no longer supported by 
Atmel. If you are not happy with the current operation of your
Rev. A board, you should obtain a new board.

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* Supported Devices:        *
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Version 7.5:
  AT90S1200  rev. D/E/F
  AT90S1200  rev. C       Lock Bits Programming not supported
  AT90S2313  rev. A
  AT90S2323  rev. A
  AT90S4414  rev. B
  AT90S8515  rev. A/B
  AT89S8252  rev. ?      Read manual to alter target RESET level

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* Change log:               *
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Version 7.5:
  New Devices:			Comments:
    AT90S1200  rev. E/F
    AT90S2313  rev. A
    AT90S2323  rev. A
    AT90S4414  rev. B
    AT90S8515  rev. B
  Features:
    Fixed a bug that could cause AT89S8252 EEPROM Write
    operations to lock up in an infinite loop.

Version 7.1:
  New Devices:
    AT90S8515  rev. A
  Features:
    Fixed a bug that caused 8515 Enter Programming Mode to fail
    on devices where the current software used SPI or
    Sleep Mode.

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* Kit Contents:         *
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Hardware:
No hardware changes are required for upgrading boards.

Software:
guide.txt         This text file
avrdev.hex        New software for the AT89C2051 (Intel Hex)

Not included but required:
aprogwin.exe      AvrProg Version 1.25 (Self Extracting
                  installation files for Win95/WinNT/MS-DOS)
                  Can be downloaded from our web site at:
	          http://www.atmel.com

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* Upgrade instructions: *
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Upgrading the existing development board requires no hardware
changes.  The required steps to complete the upgrade are the 
following:

- Install AvrProg 1.25 on the PC where the board is connected.

- Reprogram the 20-pin AT89C2051 Interface Microcontroller (MCU)
  with the file 'avrdev.hex', using a parallel programmer.

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* AT89C2051 Upgrade, Step by Step Guide:    *
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1.  Verify that you have a parallel programmer capable of
programming an AT89C2051 Flash Microcontroller (MCU) from Atmel.
Make sure the programmer have a socket or adapter kit to
program 20-pin DIP packets.
 
2.  Disconnect all cables from the development board.  This
includes both Power Cable and the serial PC communication cable.
It also includes all other connections between the development
board and other equipment.
 
3.  Identify the AT89C2051 Interface Microcontroller (MCU). The
MCU is a 20-pin device, placed in a socket located close to
board center. IF YOU CAN'T LOCATE THE MCU, YOU SHOULD NOT
CONTINUE THE UPGRADE WITHOUT ASSISTANCE FROM QUALIFIED
PERSONNEL.
 
4.  Make a note of how the MCU is oriented in its socket. Also
make a note of the location of the MCU socket. You will need
this information when completing step 10. The chip will be
PERMANENTLY DAMAGED if replaced incorrectly!
 
 MCU orientation and socket location:.........................
 
 .............................................................
 
5.  Carefully remove the AT89C2051 MCU from its socket on the 
development board.  Use a small screwdriver or similar tool,
carefully lifting the controller from its socket without
bending any leads.  Place the MCU in the parallel programmer.
 
6.  Read the current contents of the MCU, and create a backup
file.
 
7.  Erase the Flash memory of the MCU.
 
8.  Program the file 'avrdev.hex' into the Flash Program Memory
of the MCU.
 
9.  Verify the new contents have been correctly written into
the MCU Flash memory.
 
10.  Carefully place the MCU in its socket on the development
board. Observe the rotation of the chip. The chip should be
replaced in the correct socket exactly like it was originally
orientated. Replacing the MCU without observing orientation will
permanently damage the device.
 
This completes the upgrade operation. It is now safe to power
the board and connect the serial communication cable.

The upgraded development board will function properly with
AVR Prog version 1.25 or newer.