12-18-2014 04:28 PM
Hello all,I'm having trouble understanding the EPCS flash controller. I use Quartus-II / NIOS version 8.1 build 163. I need to stay at this version because of legacy systems. - I have a previous design using a Stratix-II with an EPCS64. I successfully have it copying the EPCS64 image into local SRAM and run both FPGA configuration and NIOS software [using the uCOS-II OS]. No problems, the mechanism works just fine. - My newer design uses a Stratix-III with a EPCS64. When I try and use the NIOS flash programmer to do the same, it complains that my input file is too big. In Quartus-II, the configuration scheme is 'active serial' and device is set for EPCS64 [as it is with the Stratix-II FPGA]. I've also tried to make the FPGA configuration and NIOS application smaller, but with the same results. Is there anything different that I should consider or settings when using these different FPGA's ? Please advise, thank you in advance.
01-05-2015 02:22 PM
Thank you for your reply, sorry for my delayed response.Under Settings->Device->Device and Pin Options->Configuration, the 'Generate compressed bitstreams' is checked. Is this what you mean ? Thanks again,