How to Receive uint8_t hex via USART?

I tried to receive hex data from my pc terminal to my stm32 but it was not receiving it properly

Kindly help me how to Receive the hex value from the PC terminal.

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Guru

Does transmit work if you send characters or strings?

Connected how? CMOS levels not compatible with RS232

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Associate II

actually I tried this using USB to TTL converter with nucleo-f446RE

what I need to use ?

like USB to RS232 converter After make a 232 to Micro controller.

or USB to RS485 converter after 485 to Micro controller.

this kind of stuff for receiving & transmitting Hex data.

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