How to solve nSTATUS can't go high

[Altera_Forum]

I have made a FPGA board using Cyclone V SOC 5CSXFC6D6F; The HPS is running, the Quartus Programmer can detect the HPS(SOC part), but the FPGA part can't be detect via JTAG; and I've found the nSTATUS can't go high after power up, but generate a pulse about 4.3kHz.

[Altera_Forum]

Are all the power supplies to the FPGA up and correct? Are all the power pins receiving the right voltage? Are you pulling nSTATUS up with a suitable pullup resistor to an appropriate rail? 

  --- Quote Start ---  the Quartus Programmer can detect the HPS  --- Quote End ---   Via JTAG?  For the JTAG chain to be partially working but not find the FPGA I'd suspect one of the above.  Regards, Alex