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TMDSDSK6416: MCSBP Configured as UART

Part Number: TMDSDSK6416

I have configured MCBSP to work as UART using technical reference spra633c. I am using a scenario in which two DSPs communicate with each other over UART. This UART configuration works fine when tested with TTL or any other microcontroller configured as UART for TX/RX. However between two DSP kits, I am facing problems. When I try to send multiple frames, received data on another kit is not the same when compared to transmitted data. Sometimes a few bytes of previous frames are received and hence frame synchronization is lost. For example, if I am continuously sending "ABCDEFGH" from one DSP Kit(UART configured), first few frames are correctly received. But after some frames,  I get "BCDEFGHA"  then again after a few frames, I get "CDEFGHAB" and so on. There is loss of frame synchronization. I have tried different Baud rates like 115200, 230400 etc, but no fruitful results have been achieved.

Kindly guide me for this frame synchronization issue of UART communication between TWO DSP KITS.

constant.txt
1,2,3,4,5,6,7,8,9,10,*********************************
1,2,3,4,5,6,7,8,9,10,*********************************
1,2,3,4,5,6,7,8,9,10,*********************************
1,2,3,4,5,6,7,8,9,10,*********************************
1,2,3,4,5,6,7,8,9,10,*********************************
1,2,3,4,5,6,7,8,9,10,*********************************
1,2,3,4,5,6,7,8,9,10,*********************************
1,2,3,4,5,6,7,8,9,10,*********************************

2,3,4,5,6,7,8,9,10,1,*********************************
2,3,4,5,6,7,8,9,10,1,*********************************
2,3,4,5,6,7,8,9,10,1,*********************************
2,3,4,5,6,7,8,9,10,1,*********************************
2,3,4,5,6,7,8,9,10,1,*********************************
2,3,4,5,6,7,8,9,10,1,*********************************
2,3,4,5,6,7,8,9,10,1,*********************************
2,3,4,5,6,7,8,9,10,1,*********************************
2,3,4,5,6,7,8,9,10,1,*********************************
2,3,4,5,6,7,8,9,10,1,*********************************
2,3,4,5,6,7,8,9,10,1,*********************************
2,3,4,5,6,7,8,9,10,1,*********************************
2,3,4,5,6,7,8,9,10,1,*********************************
2,3,4,5,6,7,8,9,10,1,*********************************
2,3,4,5,6,7,8,9,10,1,*********************************
2,3,4,5,6,7,8,9,10,1,*********************************
2,3,4,5,6,7,8,9,10,1,*********************************

1,2,3,4,5,6,7,8,9,10,*********************************
1,2,3,4,5,6,7,8,9,10,*********************************
1,2,3,4,5,6,7,8,9,10,*********************************
1,2,3,4,5,6,7,8,9,10,*********************************
1,2,3,4,5,6,7,8,9,10,*********************************
1,2,3,4,5,6,7,8,9,10,*********************************
1,2,3,4,5,6,7,8,9,10,*********************************
1,2,3,4,5,6,7,8,9,10,*********************************
1,2,3,4,5,6,7,8,9,10,*********************************
1,2,3,4,5,6,7,8,9,10,*********************************
1,2,3,4,5,6,7,8,9,10,*********************************
1,2,3,4,5,6,7,8,9,10,*********************************
1,2,3,4,5,6,7,8,9,10,*********************************
1,2,3,4,5,6,7,8,9,10,*********************************
1,2,3,4,5,6,7,8,9,10,*********************************
1,2,3,4,5,6,7,8,9,10,*********************************
1,2,3,4,5,6,7,8,9,10,*********************************
1,2,3,4,5,6,7,8,9,10,*********************************
1,2,3,4,5,6,7,8,9,10,*********************************
1,2,3,4,5,6,7,8,9,10,*********************************
1,2,3,4,5,6,7,8,9,10,*********************************
1,2,3,4,5,6,7,8,9,10,*********************************

2,3,4,5,6,7,8,9,10,1,*********************************
2,3,4,5,6,7,8,9,10,1,*********************************
2,3,4,5,6,7,8,9,10,1,*********************************
2,3,4,5,6,7,8,9,10,1,*********************************
2,3,4,5,6,7,8,9,10,1,*********************************
2,3,4,5,6,7,8,9,10,1,*********************************
2,3,4,5,6,7,8,9,10,1,*********************************
2,3,4,5,6,7,8,9,10,1,*********************************
2,3,4,5,6,7,8,9,10,1,*********************************
2,3,4,5,6,7,8,9,10,1,*********************************
2,3,4,5,6,7,8,9,10,1,*********************************
2,3,4,5,6,7,8,9,10,1,*********************************
2,3,4,5,6,7,8,9,10,1,*********************************
2,3,4,5,6,7,8,9,10,1,*********************************
2,3,4,5,6,7,8,9,10,1,*********************************
2,3,4,5,6,7,8,9,10,1,*********************************
2,3,4,5,6,7,8,9,10,1,*********************************
2,3,4,5,6,7,8,9,10,1,*********************************
2,3,4,5,6,7,8,9,10,1,*********************************
2,3,4,5,6,7,8,9,10,1,*********************************
2,3,4,5,6,7,8,9,10,1,*********************************
2,3,4,5,6,7,8,9,10,1,*********************************
2,3,4,5,6,7,8,9,10,1,*********************************
2,3,4,5,6,7,8,9,10,1,*********************************
2,3,4,5,6,7,8,9,10,1,*********************************
2,3,4,5,6,7,8,9,10,1,*********************************
2,3,4,5,6,7,8,9,10,1,*********************************
2,3,4,5,6,7,8,9,10,1,*********************************
2,3,4,5,6,7,8,9,10,1,*********************************
2,3,4,5,6,7,8,9,10,1,*********************************
2,3,4,5,6,7,8,9,10,1,*********************************
2,3,4,5,6,7,8,9,10,1,*********************************
2,3,4,5,6,7,8,9,10,1,*********************************
2,3,4,5,6,7,8,9,10,1,*********************************
2,3,4,5,6,7,8,9,10,1,*********************************

3,4,5,6,7,8,9,10,1,2,*********************************
3,4,5,6,7,8,9,10,1,2,*********************************
3,4,5,6,7,8,9,10,1,2,*********************************
3,4,5,6,7,8,9,10,1,2,*********************************
3,4,5,6,7,8,9,10,1,2,*********************************
3,4,5,6,7,8,9,10,1,2,*********************************
3,4,5,6,7,8,9,10,1,2,*********************************
3,4,5,6,7,8,9,10,1,2,*********************************
3,4,5,6,7,8,9,10,1,2,*********************************
3,4,5,6,7,8,9,10,1,2,*********************************
3,4,5,6,7,8,9,10,1,2,*********************************
3,4,5,6,7,8,9,10,1,2,*********************************
3,4,5,6,7,8,9,10,1,2,*********************************
3,4,5,6,7,8,9,10,1,2,*********************************
3,4,5,6,7,8,9,10,1,2,*********************************
3,4,5,6,7,8,9,10,1,2,*********************************
3,4,5,6,7,8,9,10,1,2,*********************************
3,4,5,6,7,8,9,10,1,2,*********************************
3,4,5,6,7,8,9,10,1,2,*********************************
3,4,5,6,7,8,9,10,1,2,*********************************
3,4,5,6,7,8,9,10,1,2,*********************************
3,4,5,6,7,8,9,10,1,2,*********************************
3,4,5,6,7,8,9,10,1,2,*********************************
3,4,5,6,7,8,9,10,1,2,*********************************

4,5,6,7,8,9,10,1,2,3,*********************************
4,5,6,7,8,9,10,1,2,3,*********************************
4,5,6,7,8,9,10,1,2,3,*********************************
4,5,6,7,8,9,10,1,2,3,*********************************
4,5,6,7,8,9,10,1,2,3,*********************************
4,5,6,7,8,9,10,1,2,3,*********************************
4,5,6,7,8,9,10,1,2,3,*********************************
4,5,6,7,8,9,10,1,2,3,*********************************
4,5,6,7,8,9,10,1,2,3,*********************************
4,5,6,7,8,9,10,1,2,3,*********************************
4,5,6,7,8,9,10,1,2,3,*********************************
4,5,6,7,8,9,10,1,2,3,*********************************
4,5,6,7,8,9,10,1,2,3,*********************************
4,5,6,7,8,9,10,1,2,3,*********************************
4,5,6,7,8,9,10,1,2,3,*********************************
4,5,6,7,8,9,10,1,2,3,*********************************
4,5,6,7,8,9,10,1,2,3,*********************************
4,5,6,7,8,9,10,1,2,3,*********************************
4,5,6,7,8,9,10,1,2,3,*********************************
4,5,6,7,8,9,10,1,2,3,*********************************

1,2,3,4,5,6,7,8,9,10,*********************************
1,2,3,4,5,6,7,8,9,10,*********************************
1,2,3,4,5,6,7,8,9,10,*********************************
1,2,3,4,5,6,7,8,9,10,*********************************
1,2,3,4,5,6,7,8,9,10,*********************************
1,2,3,4,5,6,7,8,9,10,*********************************
1,2,3,4,5,6,7,8,9,10,*********************************
 

This is the output file that I have obtained at another DSP kit.