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DebugWIRE

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debugWIRE is a serial communications protocol, designed by Atmel. It is used for on-chip debugging of Atmel AVR microprocessors.

Protocol

debugWIRE is designed as simpler alternative to JTAG, aimed at processors with limited resources. It is supported by most modern 8-bit AVRs. By using debugWIRE you have full read and write access to all memory and full control over the execution flow. It lacks support for single-step execution of code.

Programmer models

debugWIRE is supported by three programmer models, made by Atmel: AVR Dragon, AVR JTAGICE mkII and AVR One.

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