If you need to receive data every milli second then you have to program the transmitter to send data every milli second. And in receiver part you dont receive data in TIMER interrupt while you receive it in the USART data interrupt that is exactly when the USART completes the reception of byte from the wire.
Trouble Using USART With Timer Interrupts
I'm trying to send and recieve data using USART and receiving data in timer interrupt which means i want to recieve data in every something ms, But the problem is UDR reading receving data whithout transmitting and second problem is if somehow i manage to send data accurately then data transmiting is very slow. i really need your help here . please contact me as soon as possible.
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