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Hello, I am using ST10F269 evaluation board and using Keil environment for the same. I am trying to interface ST10 board with PC through asynchronous serial interface.The problem am facing is regarding serial interface between the board and the PC(hyperterminal). When I send a character from hyperterminal to the board, I receive it in S0RBUF register and if I try to retreive the S0RBUF contents to a local variable it works fine. But if I use global variables or pointer variables to retrieve the value of S0RBUF, am not getting the correct value whatever is in S0RBUF register. When I work with simulator it works fine. But when I download the code to the ST10 board using ST10Flasher software, it is not working. Could you please suggest me the reason for this and the solution for the same. Naina
could be a hardware fault on the memory of your target board?