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Altera_Forum
Honored Contributor
12 years agoWhat u're doing to erase it is powering off the circuit. This kits have a USB-Blaster programmer built-in the board. From Quartus, when you start the programmer windows, it appears in the right top corner the "mode" of programming. Probably u selected "JTAG" mode. In this mode you lost the configuration when you power off the circuit.
Try to select "Active Serial". A pop-up window tell you that the programming file extension ( .sof ) isn't compatible with JTAG mode. Click Ok and the Add a programming file. Select the one with .pof extension. Programm again. The configuration will be stored in the EPCS memory.