Running multiple images from EPCS (Factory & User)

Hi lehagen,

this bootloader is tested just with Stratix2 (S15, S30) devices. I don't know if it works also for Cyclone3. Furthermore I used uncompressed bitstreams. Try this.

In the header (boot_loader.h) are two defines:

in your case, should be correct

# define EPCS_SRC_ADDR 0x100000

in my design EPCS_CONTROLLER is at 0x21000 in the SOPC, 0x400 offset for accessing the registers in the epcs controller

# define EPCS_REGS_BASE 0x00021400

Please verify that.

You should also verify if the nios program is stored correct at 0x100000 in EPCS.

Some additonal informations and example for alternative boot methods you get in AN458.

(http://www.altera.com/literature/lit-an.jsp)

Jens