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Debugger Features

User Guide

DS-50003529B - 51

• an 8-bit ATB input.

• no synchronous trace output, that is, no TRACEDATA, TRACECTL, or TRACECLK pins.

• no support for ush, because this is not required.

• no support for triggering.

• no external inputs and outputs (EXTCTLIN and EXTCTLOUT are not implemented).

Figure 5-2. SWO Block Diagram

5.4.3 Requirements for ITM/SWO Trace

The following is required to use trace for SAM devices:

• MPLAB X IDE v6.10 or greater.

• A target board with debug and trace connections to a device that supports SWO trace.

• For debug and trace support, use one of the following:

– MPLAB ICD 5 Cortex-M Trace Adapter Board

– ICD 5 JTAG Adapter Board (Note: SWO pin multiplexed with JTAG pins)

– a target board with a connector to the 8-pin at cable

5.4.4 Hardware Setup

Preliminaries

1. Use USB communication between the PC and MPLAB ICD 5. Other communication types do not

support trace.

2. Find devices that support ITM trace – see Help>Release Notes> Debug Features Support>Hardware

Tool Debug Features by Device.

3. Design the target board to have a connector for debugger-target communication and for trace

pins if using SAM 3.3.3. Debugger Adapter Board. Alternately design the target board to connect

to the cable with pins for both debug and trace.

4. When using trace, the TRACESWO pin on the target is used. Therefore you cannot use another

function multiplexed on that pin.

Set Up Hardware

To use the ITM/SWO feature:

1. The target board should be unpowered.

2. Install the communication cable between the debugger or adapter board and the

communication connector on your target board.

Microchip Technology MPLAB ICD 5 User Manual

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