Help:Cann't read or write EPCS in Nios II,why?

i can't even do that can you help me with that. when i measure with the scope on the ports there is no activity on any port

//*****************

while(1)

{

IOWR_ALTERA_AVALON_SPI_SLAVE_SEL(EPCS_FLASH_CONTROLLER_0_BASE, 1 << 0);

IOWR_ALTERA_AVALON_SPI_TXDATA(EPCS_FLASH_CONTROLLER_0_BASE, 0xAA);

IOWR_ALTERA_AVALON_SPI_SLAVE_SEL(EPCS_FLASH_CONTROLLER_0_BASE, 0 << 0);

}

//*******************

I think that your problem is that you need to NOT, enable the small device drivers in the system library.

i have the same problem and from the reading i figured that is the problem. I'm a newbe so i might be wrong.