havrapp

Henrik AVR application

History

0.1
Created by Henrik Björkman Feb 2007
Used code for atmega8 found on web and ported it to atmega88.

0.2
Can almost receive xmodem.
Henrik 2007-03-09

0.3
Can receive xmodem,
Need to figure out how to put this code into the bootloader section of the AVR.
Henrik 2007-03-13

0.4
Modifed makefile so that code is relocated to booltoader section.
Need to reduce code size and not use interrupts.

0.5
First working version!
Henrik 2007-03-14

0.6
Small cleanup, functionality is the same.
Henrik 2007-03-15

0.7
Autoboot works

0.8
Autoboot will now expect 5 Esc characters to
avoid going inte xmodem due to other traffic.
Henrik 2007-03-16

0.9
Will now expect exactly 5 Esc characters to avoid
entering xmodem mode by mistake or due to noise.
Henrik 2007-03-17

0.10
Only some minor changes. Mostly documentation.
Henrik 2007-04-02

1.0
Changed version to 1.0. Think the project is ready for that.
Henrik 2007-04-02

1.1
Made a correction suggested by Jerry Mulchin at
JWM Engineering Group, Inc.
Shall be able to load larger files now.
Henrik 2007-06-27

1.2
Enable internal pull up on RxD.
Henrik 2007-10-19

1.3
With latest compiler the bootloader no longer fitted into 512 byte.
Removed checking of checksum to make it smaller.
Added instructions about what to do to enable it again if so is desired.
Changed calculation of baudrate.
Henrik 2012-05-14

1.4
Some minor improvements only.
Henrik 2012-05-15