--- Quote Start ---
any one knows why the red error led illuminates while i am programming the FPGA , also why does the FPGA reset to factory setting each time i switch power off and on ? , and how to make it keep the code in it
--- Quote End ---
You are going to have to provide WAY more info than this, we are not psychic Like development board, type of FPGA, quartus tools environment, possibly sample code you are programming, etc. Provide as much detail as you can.
Just saying the 'red error led is lighting' is nowhere near enough detail to be useful.
Honored Contributor
