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Altera_Forum
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8 years ago

jtag debugger dosen't finds the connected cyclon ll processor

Hi I am using cyclon ll processor and Nios2 13.0 IDE. I have started facing a problem that my USB blaster doesn't recognize the hardware. When i did jtagconfig -d 1) USB-Blaster [USB-0] Un...
Altera_Forum's avatar
Altera_Forum
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8 years ago

Is this a custom board or a development kit?

If it's a kit then it sounds like the FPGA may have suffered and one of the JTGA buffers on it may be damaged.

The same may be true of a custom board. Has it ever worked? Alternatively, the device may not be soldered down correctly or the JTAG traces may simply be too long.

I assume you can't auto-detect the JTAG chain?

Cheers,

Alex