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Altera_Forum
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20 years ago

Why my system cannot boot from EPCS

I can download hardware and software files to EPCS and CFI flash, and my system can boot from Flash. While, after I programmed hardware and software files into EPCS, the EPCS can config FPGA, but...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
20 years ago

Thank u all.

I am using the NiosII1.1 and QuartusII4.2

At first, i doubted the reset address conflicted with the hardware image location (just like Soin said); but even after i changed the reset address to another address of epcs which would not conflict the hardware image, the system did not boot sucessfully also.

At last, the FAE told me that there is a bug in system-boot-up-from-epcs, then I fixed it. Now, it works.

By the way, the reset address is also pointed to the base address of epcs. The UG of flash programmer says that "the flash programmer first checks the size of the FPGA configuration data, then appends the software content to the end of it in the epcs device", so we need not worry the reset address will conflict with the hardware image.