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MSP430G2452: Programming external chip with on-board emulator

Part Number: MSP430G2452
Other Parts Discussed in Thread: MSP430G2553

I have a MSP430G2 launchpad kit, which comes with a msp430g2553 mounted development board and a msp430g2452 chip. I got the msp430g2452 chip working on a breadboard with a pre-installed program. But, it is very difficult to swap them over and over again for programming. So, I was trying to use the on-board emulator. I connected vcc, Rst, TEST as prescribed. I wired up RxD to P1.1 and Txd to 1.2. But, every time I get an error saying (the selected serial port tilib:device initialization failed  board not connected or does not exist. How to fix this?  

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