UART Icommunication in stm32f3 discovery and pc (serial terminal) not working

Hi ,

My Requirement is communication between micro controller and Serial terminal(putty) using UART Communication.

I have taken example project of UART( two board communication using DMA)...i have defined #define TRANMIT_BOARD 1. 

but I am not able to communicate my serial terminal(putty not able ).

observation:

1. hal_urt_tranmit_dma its returning HAL_oK

2. PUTTY terminal not receiving any data.

in Example project any modification required?

Thank you in advance.

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