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CLa_R's avatar
CLa_R
Icon for Occasional Contributor rankOccasional Contributor
6 years ago

Wrong device detected from USB Blaster

Suddenly, my USB Blaster stopped working. I can no longer transfer the schematic/VHDL to the FPGA. I tried using JTAG Tag Debugger and noticed that the detected device is an altera 10CL, but in rea...
CLa_R's avatar
CLa_R
Icon for Occasional Contributor rankOccasional Contributor
6 years ago

Apparently I think I understood the problem

The program cannot be transferred when I use an oscillator supplied as IP from Altera. If I connect the internal oscillator output to my circuit, the circuit is not transferred. If I disconnect it, everything works.

This work well:

But the other circuit also uses an internal oscillator and does not cause any problems.

Is it possible that my old circuit (the one that works well) uses an internal oscillator generated with a different version of Quartus II and for this reason does not give any problem?