Currently, I am working in Broadwell-DE based module design. In this circuit, There is an FPGA (p/n :10M02SCU169C8G )
Please see the configuration user guide added. ( ref page 14) https://www.altera.com/content/dam/altera-www/global/en_US/pdfs/literature/hb/max-10/ug_m10_config.pdf
So there is pin for config_sel ( selecting the configuration image 0/1)
I have gone through the doc and unfortunately I could not get the concept of configuration image 0 and 1.
Please do advice if any one know the concept of config_sel and what should be the default connection?