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Altera_Forum's avatar
Altera_Forum
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13 years ago

how to watch the rx_datain , the rx_errdetect ports ?

Hi

I am a beginner, and am working on Stratix IV board.

How to watch the rx_datain , the rx_errdetect ports ?

I checked Stratix GX device handbook and the forum as well, and there ARE a lot of information about the ports. However, I still do not know how to check or watch the signals(ports).

Should I allocate the signals to some FPGA balls and use a oscilloscope ?

Thanks a lot

3 Replies

  • Altera_Forum's avatar
    Altera_Forum
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    Should I allocate the signals to some FPGA balls and use a oscilloscope ?

    - Yes, I often do this and solved lots of problems.
  • Altera_Forum's avatar
    Altera_Forum
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    If these signal are not input/output of your top-level entity, I advise you to use SignalTap tool of Quartus, really simple and efficient.

  • Altera_Forum's avatar
    Altera_Forum
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    you should be able to signaltap rx_errdetect, however rx_datain is a high-speed serial port and can't be tapped with signaltap (you will get an error or internal error). you should instead tap rx_dataout, which is the deserialized parallel output (think shift register)