CMSIS v4.5.0 UARTx Interrupt basic example

Hi,

I have been stuck on getting the interrupt to work with keil using CMSIS.

I keep getting the following:

Error: L6200E: Symbol USART3_IRQHandler multiply defined (by usart_lpc43xx.o and main.o)

void USART3_IRQHandler()
{

        NVIC_DisableIRQ(USART3_IRQn);

        NVIC_ClearPendingIRQ(USART3_IRQn);

        Value ++;

        NVIC_EnableIRQ(USART3_IRQn);
}


void UART_Interrupt_Init()
{

        LPC_USART3->IER   = 0x03;

        NVIC_EnableIRQ(USART3_IRQn);
}

I have been trying to get this to work for days now.

I successfully got interrupt to work with LPCopen, code without CMSIS etc...

But as I have a big portion of my code using CMSIS i would like to continue using CMSIS.

Does anyone have a very basic USART3_IRQHandler() example using CMSIS Please?

Or maybe just try a simple test and see if CMSIS UART Interrupt works, as i have tried using different attempts with no luck.

I also cannot find any useful examples with CMSIS and Uart interrupts.

Could some one please help me.

Thank you