[avr-gcc-list] Problem on receive interrupt with Atmega8.

[frankie]

 I cannot receive data using the SIGNAL with ATmega8, below are part of my code.

 

/* UART received handler signal */

SIGNAL(USART_RXC_vect)

{

    unsigned char data;

    unsigned char temphead; 

    data = "">

    temphead = (WriteBufPos+1) & UART_RX_BUFFER_MASK;

    WriteBufPos = temphead;

    RECEIVE_BUFFER[WriteBufPos]=data; 

 }

 

main(void)

{

    disable_global_interrupt();

    Init_uart();

    enable_global_interrupt();

    WriteBufPos=0; 

   for(;;)

    {

        //process receive buffer.

        if(WriteBufPos > 5)

            LED_ON();

    }

}

 

The LED is never ON.

 

Can anyone help? Thanks in advance.

 

I am using avr-lib-1.4.4.

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