Part Number: MSP430F249-EP Hi, i am testing my microcontroller alone in a breakout board, there i connected JTAG and it works fine for sometime. After i got an error as "Error connecting to target : the debug interface to the device has been secured". Then it connected and debugs 2 times but single step debugging doesnot takes place. At the end it is not working "Error connecting to the target: Unknown device". I tried this for 5 IC's for all, i get the same issue. At the image i have connected R3 alone and left JTAG pin 2 floating
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