Solved
got stuck in SPCSetRunMode() in __early_init()
my SPC5studio version is 6.0.0,my UDE STK version is 5.0
my SPC5studio version is 6.0.0,my UDE STK version is 5.0
after few days using SPC5studio,I found that the way to solve this problem may not be change your SPC5studio version,you can check your frequency of External crystal , and check whether or not it is corresponding to the Settings of your SPC5studio!!!!
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