AnsweredAssumed Answered

Register is overwritten

Question asked by 贤明 宋 on May 4, 2019
Latest reply on May 24, 2019 by Edward Karpicz

MCU : mc9s12g128

Compiler: codewarriory 5.1

During the running of the program, the pull-up register of the port is rewritten, and the pull-up function of the port is opened after the rewriting. After checking the software did not operate this register, I would like to analyze from hardware, software, compiler, and what are the reasons for rewriting the register. How to locate the reason why the register is abnormally overwritten.