Honored Contributor
Honored Contributorwhat exactly do you mean by "update the configuration file" ?
files that contain the fpga image are created by the quartus software. modifying as you mentioned is not possible as far as i know. these files are not like binary files from microcontrolers where you can patch some kind of a string. you will need to change such messages, if they exist, within your fpga project source and recompile via quartus. but there is a possability to modify fpga memory content without recompiling if you have used some onchip memories and the are initialized by a MIF of HEX file. such onchip memories can be your application memory for the instructions as well as data or any other kind.
