EPCS access fail

Altera_Forum · ‎01-14-2015

Hi there

I'm having trouble accessing the EPCS from withing NIOS. When running the following code:

void OpenEpcsFlash()

{

fd_f = alt_flash_open_dev(EPCS_FLASH_CONTROLLER_NAME);

alt_printf("EPCS pointer: %x\r\n",fd_f);

}

fd_f always returns a NULL pointer.

I've enabled small_device_drivers and the small_c_library, but I've included the ALT_USE_EPCS_FLASH# define. If I run the exact same code on the DE0_Nano_SOPC demo project, included in the Altera DE0 Nano board, the software works. Is it possibly a setup problem in my Qsys system?

I'm using Quartus 13.1.0.

Thanks in advance

Jean

Altera_Forum · ‎01-14-2015

I found the problem. The# define ALT_USE_EPCS_FLASH, is removed each time the BSP is regenerated. Thus it needs to be added after BSP generation.

Hope this helps someone in the future

Kind regards

Jean

Altera_Forum · ‎07-02-2015

There are others cases where some user installed the EDS and tool chain in different folder location where causing the inclusion path is not updated correctly. :)