stm32h750vb usart

how can send 0x00 with usart in cubmx if data 0 not send

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Guru

The same way it send other byte. Put it in a char variable, pass a pointer to the variable, and a size of one.

Don't pass a NULL pointer, and don't use strlen ()

One could also check the TXE bit in the ISR register and write to TDR

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