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TMS320F28335: 控制板连接仿真器时,DSP I/O供电被拉至1.58V

Part Number: TMS320F28335

在控制板不上电的情况下,将仿真器与控制板和电脑连接起来后,测试到DSP的I/O供电有1.58V电压,内核电压为0,这会导致上电时序和数据手册不符,请问这是普遍现象吗?还是需要注意一下这个问题?