I have successfully got Linux up & running with my Atlas(de0-nano-soc) board - application works , yada yada yada ...- but would like to offload some processing from the Arm(s) - to a NIOS sub processor essentially hold the NIOS in reset - upload code (from linux ) - release NIOS (boot) - I have read over an458.pdf (alternate boot methods) & examined the code - but am still at a loss of how to produce file with a obvious NIOS entry point ? should i be using an .elf ? sof ? my code is quite small - is the nios environment really the best way ? (test program is only 3 lines, proved ARM code is ~100 lines) any ideas ? links ? or code ?