FIFOed Avalon Uart

Hi

this fifoed uart is really great it solved me a lot of problems!!

Now I have a question.

I defined:# define UART_RX_FIFO_USED(base) IORD(base, 6)# define UART_TX_FIFO_USED(base) IORD(base, 7)

To get the number of chars in the tx and rx FIFO, but when I call:

printf("\nBytes in fifo RX:%i TX:%i", UART_RX_FIFO_USED(FIFOED_AVALON_UART_0_BASE), UART_TX_FIFO_USED(FIFOED_AVALON_UART_0_BASE));

I always get 0.

And this is what I have in system.h:

[…]

/*

* fifoed_avalon_uart_0 configuration

*

*/# define ALT_MODULE_CLASS_fifoed_avalon_uart_0 fifoed_avalon_uart# define FIFOED_AVALON_UART_0_BASE 0x4820a0# define FIFOED_AVALON_UART_0_FIXED_BAUD 0# define FIFOED_AVALON_UART_0_IRQ 4# define FIFOED_AVALON_UART_0_IRQ_INTERRUPT_CONTROLLER_ID 0# define FIFOED_AVALON_UART_0_NAME "/dev/fifoed_avalon_uart_0"# define FIFOED_AVALON_UART_0_SPAN 32# define FIFOED_AVALON_UART_0_TYPE "fifoed_avalon_uart"# define FIFOED_AVALON_UART_0_USE_CTS_RTS 0

[…]

What am I doing wrong?

Thanks

(Pleas tell me if it is the wrong place to ask this)