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2.2.2 eZ-FET Onboard Emulator With EnergyTrace™ Technology

To keep development easy and cost effective, TI's LaunchPad Development Kits integrate an onboard

emulator, which eliminates the need for expensive programmers. The MSP-EXP430FR6989 has the eZ-

FET emulator (see Figure 5), which is a simple and low-cost debugger that supports all MSP430 device

derivatives.

Figure 5. eZ-FET Emulator

The MSP-EXP430FR6989 LaunchPad features full EnergyTrace++ technology. The EnergyTrace

functionality varies across the MSP portfolio, shown in Table 1.

Table 1. EnergyTrace Technology

Features EnergyTrace™ Technology EnergyTrace++™ Technology

Current Monitoring Yes Yes

CPU State No Yes

Peripheral and System State No Yes

Devices Supported All MSP430 MCUs MSP430FR59xx and FR69xx MCUs

Development Tool Required MSP-FET or eZ-FET MSP-FET or eZ-FET

The eZ-FET also provides a "backchannel" UART-over-USB connection with the host, which can be very

useful during debugging and for easy communication with a PC. The provided UART supports hardware

flow control (RTS and CTS), although by default these signals are not connected to the target.

In Figure 5, the dotted line through J101 divides the eZ-FET emulator from the target area. The signals

that cross this line can be disconnected by jumpers on J101, the isolation jumper block. More details on

the isolation jumper block are in Section 2.2.3.

The eZ-FET hardware can be found in the schematics in Section 6 and in the MSP-EXP430FR6989

Hardware Design Files. The software and more information about the debugger can be found on the eZ-

FET wiki.

MSP430FR6989 LaunchPad™ Development Kit (MSP

‑

EXP430FR6989) SLAU627A–May 2015–Revised July 2015

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