ARM Technical Support Knowledge Articles

CANNOT TYPE CHARACTERS INTO SERIAL WINDOW

Applies to: uVision Debugger

Answer


Information in this article applies to:


QUESTION

I have an 8051 application that uses the serial port. I tried to run the simulator with the serial window and I can get output there but I cannot type characters into the serial window. Is there anything I need to configure?

ANSWER

You must ensure that the serial port receiver (the REN bit in the SCON register) is set. For example:

REN = 1;

Once serial reception enabled, you will be able to input characters into the serial window.

SEE ALSO

Article last edited on: 2004-06-29 14:22:46

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