Cjtag Usage; Xds100V2 Emulation Circuitry And Isolation Circuitry Is Denoted By :A - Texas Instruments Piccolo F280049 controlCARD User Manual

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Special Notes

Figure 2. XDS100v2 Emulation Circuitry and Isolation Circuitry is Denoted by :A

4.2

cJTAG Usage

The F280049 MCU supports the cJTAG 2-pin debugging interface, but the onboard XDS100v2 emulator

does not. To experiment with cJTAG, an external emulator must be connected through the baseboard. To

enable cJTAG:

1. Connect an external emulator to the controlCARD's baseboard.

2. Change S4 to the cJTAG position (switch flipped up).

3. If cJTAG is used, the F280049 MCU will have two additional GPIOs which can be used by the

application. Configure S2 and S3, as desired, to control which controlCARD fingers or pins the newly

available GPIOs are connected to.

Piccolo F280049 controlCARD Information Guide

SPRUIC4C – July 2017 – Revised January 2019

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