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CCS/TMS320F28335: TMS320F28335

Part Number: TMS320F28335
Other Parts Discussed in Thread: C2000WARE

Tool/software: Code Composer Studio

I am trying to make RS232 Communication. I have configured pin number 28 as TX and pin number 36 as RX.  I am able to receive the data send from the DSP but I am not able to send any data. 

Is it because the GPIO pins are from Different groups i.e from GPA and GPB?