Atmel MCU Technical Support Center

Frequently Asked Questions

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Name	Description
JTAGICE mkII - Failed to identify target. Would you like to retry with external reset enabled?	Whenever I try to use JTAGICE mkII to program the AVR device,...
Setting Individual Optimization levels for different files of the same project	How to configure separate/individual optimization levels for ...
Fused to incorrect clock source	ISP programming is not working anymore. Previousely I could program my...
debugWIRE	Debugging using the debugWIRE interface does not work. What i...
Disable Debug Wire fuse	I have enabled the debugWIRE fuse and can't program the device with IS...
New AVR cannot be programmed	My brand new AVR microcontroller cannot be programmed.
Disable the JTAG interface	I would like to disable the JTAG interface in order to use the JTAG pi...
RSTDISBL fuse	I programmed the RSTDISBL fuse and now I am not able to reprogram my A...
Connecting the ISP lines	How do I connect the ISP lines when designing a PCB with AVR?
ADC analog inputs shared with JTAG : conversion issue	I have an analog input on Port F, Pin 5 which is shared with the TMS J...
High Voltage Programming	What is High Voltage Programming and how can I do High Voltage Program...
ISP frequency	What should my ISP frequency be when programming a target?
ISP programming not working	Why doesn't ISP programming work on my AVR?