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RBell9's avatar
RBell9
Icon for New Contributor rankNew Contributor
3 years ago

§Problem with bidirectional pin 10CL006YU256A7G

Hello,

I have problems using a bidirectional pin in the cyclone 10LP custom board (10CL006YU256A7G).

I am using a bdf project, here is the implementation of the bidirectional pin:

on my board connected with the IN_OUT pin there is the following electrical circuit:

the problem is that when I set the OE line to LOW (bidirectional pin should transfer out the A value) the IN_OUT line remains HIGH regardless of the value of the A-line, the same happens when I put the OE LOW. The input signal remains HIGH even if I put the IO_PIN of the 'analog part' to gnd.

I tried to disconnect all the electrical parts but nothing changed.

If I use an output pin instead of a bidirectional one the output works fine (A signal is reported to the output pin).

I am using the pin L2, I tried to change the pin from L2 to T14 and all starts working fine, I also tried to connect the T14 pin to the same electrical circuit, and everything works.

There are some differences between these 2 pins? Do I have to change some properties of the L2 pin?

Thanks a lot

2 Replies

  • Farabi's avatar
    Farabi
    Icon for Regular Contributor rankRegular Contributor
    3 years ago

    Hello bidirectional pin can be set at pin planner.

    You dont need to do the bdf circuit like you showed.

    regards,

    Farabi

  • Farabi's avatar
    Farabi
    Icon for Regular Contributor rankRegular Contributor
    3 years ago

    Hello,


    I’m glad that your question has been addressed, I now transition this thread to community support. If you have a new question, feel free to open a new thread to get the support from Intel experts. Otherwise, the community users will continue to help you on this thread. Thank you.


    regards,

    Farabi