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The Atmel ATMEL-ICE is a JTAG interface tool recommended for designing application PCBs that include an Atmel AVR with JTAG capabilities. It supports both 100-mil and 50-mil pinout variants, depending on the specific kit's cabling and adapters.
The pinout includes essential signals for debugging: TCK (Test Clock), TMS (Test Mode Select), TDI (Test Data In), TDO (Test Data Out), nTRST (Test Reset), nSRST (Reset), VTG (Target Voltage Reference), and GND (Ground). Connecting the nSRST pin is recommended to allow the Atmel-ICE to hold the target device in a reset state, which is crucial for certain debugging scenarios. The VTG pin provides a target voltage reference, with the Atmel-ICE drawing minimal current from it. Both GND pins must be connected to ensure a common ground reference between the debugger and the target device.
This debugger is designed to facilitate efficient development and debugging of embedded systems utilizing Atmel AVR microcontrollers. Its robust pinout and recommended connection practices ensure reliable operation and effective troubleshooting during the development cycle.
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Estimated market price range - modelled values for guidance only, not live distributor offers.
TCK is the test clock signal transmitted from the Atmel-ICE to the target device.
The VTG pin samples the target voltage to power the level converters; the Atmel-ICE draws less than 3 mA in debugWire mode and less than 1 mA in other modes.
nSRST is used to reset the target device; connecting it allows the Atmel-ICE to hold the target in reset state, essential for some debugging scenarios.
There are two ground pins (pin 2 and pin 10); both must be connected for proper operation.
Yes, it has TCK, TMS, TDI, TDO pins for JTAG communication.
nTRST is optional and used to reset the JTAG TAP controller on some AVR devices.