Connecting The Power Debugger; Connecting To Avr And Sam Target Devices - Microchip Technology Power Debugger Manual

2.

Connecting the Power Debugger

The many connection possibilities of the Power Debugger are laid out in a logical manner with the silkscreen serving
as a functional reference for most connectors. A connection overview is given here:
USB 'DEBUG' Connector: Must be connected to the host computer for debugger power supply and all data transfer.
USB 'TARGET' Connectors: Can be optionally used to supply USB power to the target. Data lines are passed
through to the corresponding 'TARGET' type A jack. For convenience when debugging USB powered applications,
the output to the target USB connector can be easily connected to either 'A' or 'B' channels using a jumper, as
indicated by the silkscreen drawing.
DGI 20-Pin Header Rows: Can be optionally connected to target data sources for data streaming to the computer.
AVR and SAM Debug Headers: To connect to the target device using either AVR 10-pin pinout (or via relevant
adapter) or the 10-pin ARM Cortex debug pinout.
VOUT: Optionally provide power from the Power Debugger to the target in the range 1.6V to 5.5V. Up to 100 mA can
be sourced. Voltage output is configured using the software front-end, and current is sourced from the DEBUG USB
connector.
GND: To ensure safe and accurate operation of the Power Debugger, a shared ground is essential.
'A' and 'B' Channel Current Measurement Ports: Depicted with ammeter symbols on the silkscreen, these two
measurement channels are to be connected in a high-side configuration. This means that the voltage supply is
connected to the input of the ammeter, and the load (target) is connected to the output.
Info: The grouping of the 'A' and 'B' channel input and output signals with respect to their neighboring
pins is purely for convenience. To route the configurable VOUT voltage source into channel 'A', a jumper
can be used. This voltage can be routed to channel 'B' using a wire-strap. The same applies to the voltage
provided by the TARGET USB connector.
Tip: For common power routing configurations, refer to the printed quick-start guide included in the kit
and in the Getting Started section.
2.1 Connecting to AVR
The Power Debugger is equipped with two 50-mil 10-pin JTAG connectors. Both connectors are directly electrically
connected, but conform to two different pinouts; the AVR JTAG header and the ARM Cortex Debug header. The
connector should be selected based on the pinout of the target board, and not the target MCU type - for example, a
SAM device mounted in an AVR STK600 stack should use the AVR header.
The Power Debugger kit contains all necessary cabling and adapters. An overview of connection options is shown.
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2020 Microchip Technology Inc.
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and SAM Target Devices
Connecting the Power Debugger
User Guide
Power Debugger
DS40002201A-page 7