Honored Contributor
Honored ContributorHi Markus09,
Thanks for your suggestion. I have tried what you have pointed out: (1) First change reset vector to flash, as below https://www.alteraforum.com/forum/attachment.php?attachmentid=13196 (2) Then program using NIOS flash programmer, with settings below https://www.alteraforum.com/forum/attachment.php?attachmentid=13197 The same result as before. It can boot and run immediately after flash programming, but can't boot up after power down and up, and the CONF_DONE signal is low. however, i found that, although it can't boot up, if i just download the .sof file here, it can boot and run, led flashes. i don't need to "run as" the software part as before for system to run. It means actually the FPGA logic isn't programmed into the flash, or it is the FPGA logic that can't boot up, right? Can you help me take a look at the picture of NIOS flash programmer setting to check whether my setting is correct? I will try using separate LED, one in FPGA logic and one in NIOS. But it seems that the problem is how to make FPGA logic boot, noy the FPGA logic itself. Thanks so much for your suggestion~~
