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CCS/TMS570LC4357: Issue in reading the data from UART when connected to MAX3488EESA RS422 convertor

Part Number: TMS570LC4357


Tool/software: Code Composer Studio

Hi,

I am Using TMS570LC4357 for my project and I have connected the RS422( MAX3488EESA ) Tx and Rx to SCI Tx and Rx Respectively.

When i am doing the external loopback for this connection then i can able to transmit and receive the data properly.

If i attached the RS422 to serial connector and tries to send the data from Other PC to processor then I am unable to receive the data accurately.

Although, to check the Serial Converter, i also tested that for loopback, there also i could not find any problem.

I Probed the pins for the reception, there i could able to get the proper data, but in the register i cannot see the same.

It is like when i am transmitting the 0x31 i should get it same. But, I am receiving the data as 0xE3.

Can Anyone please help me in understanding this behaviour.

Regards,

Shivam Kakad