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QN9020 B3 HardFault_Handler  Problem

Question asked by deng qiang on Dec 8, 2017
Latest reply on Jan 19, 2018 by Mario Ignacio Castaneda Lopez

1.When qppc connected with qpps ,when connected,the uart0 receive MCU's data.

2.then disconnected qpps(shutdown qpps's power),but qppc recongnise the qpps down after 3 seconds .in the 3 seconds,the data always receive.

3.repeate the connect and disconnect,the QN9020 B3 will enter the HardFault_Handler .