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UART_IRQHandler

Hi ,

I want to receive some characters through UART using interrupt method and then to print it.

I have enabled the UART interrupt in NVIC using "NVIC_EnableIRQ(UART0_IRQn)"

I run the program in keil simulator and opened UART window of keil

And I tried by giving the characters as input through keyboard into UART window of keil but the code is not entering my IRQ handler .

Whether i have to change anything in startup code or anythig else??
Whether the UART window in keil is only for output or also for input ??

please help.