Cyclone II can't enter in configuration mode with EPCS1.

HI everybody,

I am trying to configure a cyclone II with EPCS1 boot loader.

the EPCS1 program perfectly with quartus and byteblaster II cable.

But when at the nstatus pin on the FPGA, it's like it's try to go to
VCC during 2 us, then once it's almost reach VCC, it's get down to
ground immediatly, and repeat the phenomena again.

the FPGA can't leave POR mode.

Anybody have an Idea ?

Thank you for your time.