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FRDM-KL02Z connect error using OpenSDA-USB Port

Question asked by Wu ShenHui on May 9, 2018
Latest reply on May 13, 2018 by Robin_Shen

I was configure IO PTA0 (which is use by the jtag clk pin) as the general io in the main start code, and start debuger. when the process start, i lost connect to the chip. AND never get connect to the chip again.  is there any to NOT run the program in flash when it boot? or is there any way to erase flash without using jtag? or the chip just never enable to reprogram again?