Using the AT90USBKey
Figure 2-10 . Connecting AVR JTAG ICE to AVRUSBKey
The Flash, EEPROM and all Fuse and Lock Bit options ISP-programmable can be
programmed individually or with the sequential automatic programming option.
Note:
See AVR Studio? on-line Help for information.
2.6
2.6.1
2-14
Debugging
Debugging with AVR JTAG ICE mkII
The AT90USBKey can be used for debugging with JTAG ICE MK II.
Connect the JTAG ICE mkII as shown in Figure 2-10, for debugging, please refer to
AVR Studio? Help information.
When using JTAG ICE MK II for debugging, and as AT90USB parts are factory
configured with the higher security level set, a chip erase operation will be performed on
the part before debugging. Thus the on-chip flash bootloader will be erased. It can be
restored after the debug session using the bootloader hex file available from ATMEL
website.
AT90USBKey Hardware User Guide
7627A–AVR–04/06
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