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S32R274 reset_B keeps low

Question asked by zhe wang on Aug 29, 2018

Hi all,

       I am debugging my board based on S32R274 now, but I can encountered a problem: my PE micro USB mulitlink can not connect my device. 

       After checking the JTAG interface signals, I found that the the signal on S32R274 RESET_B pin always keep in LOW after I power on the system(either with or without the JTAG interface connected). And actually, the pin is pull-up to V3.3 by a 4.7K resistor.

       An in S32R274 reference manual Table4-1, it is described that the RESET_B is kept in LOW during POR and RESET stages. It means that my S32R274 is kept in POR/RESET stage, and there is some problem with my S32R274?

      Is there anybody can tell me how can I get throught the problem? Thanks 

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