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 |  | AVR236: CRC check of Program Memory on tinyAVR and megaAVR devices with LPM instruction (9 pages, revision B, updated 5/02) The Application Note describes CRC (Cyclic Redundancy Check) theory and implementation of CRC checking of program memory for secure applications. |
 |  | AVR242: Multiplexing LED Drive & a 4x4 Keypad on tinyAVR and megaAVR devices (26 pages, revision B, updated 5/02) This Application Note describes a comprehensive system providing a 4 x 4 keypad as input into a real time clock/timer with two outputs and controls external loads and a four digit mulitplexed LED display.
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 |  | AVR244: UART as ANSI Terminal Interface (8 pages, revision A, updated 11/03) This application note describes some basic routines to interface an AVR microcontroller to a terminal window using the UART (hardware or software).
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 |  | AVR313: Interfacing a PC AT Keyboard on tinyAVR and megaAVR devices (13 pages, revision B, updated 5/02) Most microcontrollers requires some kind of human interface. This Application Note describes one way of doing this using a standard PC AT Keyboard. |
 |  | AVR335: Digital Sound Recorder with tinyAVR or megaAVR and DataFlash (20 pages, revision C, updated 04/05) This Application Note describes how to record, store and play back sound using any 8-bit AVR MCU with A/D converter, the AT45DB161 DataFlash memory and a few extra components
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 | | AVR074: Upgrading AT90ICEPRO to ICE10 (8 pages, revision B, updated 5/02) This Application Note describes how to upgrade the AT90ICEPRO emulator to ATICE10 Version 2.0 |