How have you tried reading from the serial port? What have you done to verify that serial data is being sent to the port? What do you know about the incoming serial data (baud, parity, data format, etc)? When you say 'not able to read from the same port', what exactly are you doing to try to read the data? Have you made a loopback connection on the port? Are you using some serial communications software such as minicom, or are you writing your own code? If the latter, posting some sample code (use [code] tags to preserve formatting, please) would be helpful.
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