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Altera_Forum
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11 years ago

Altera Cyclone V Development Kit Jumper Postion

Hi

I have a really fundamental question regarding the altera cyclone v development kit that I just couldn't find anywhere on the net or in the documentation:

For the jumpers and switches on the board, which position indicates 0 and which 1?

In particular the bootsel jumpers:

Does left indicate 1 and right 0? Is this correct?

Thanks for your help.

Best regards,

altera_cus_0815

1 Reply

  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    11 years ago

    Document "ug_cv_soc_dev_kit.pdf" in conjunction with the schematic show the info. E.g. in section 3-2, page 12, there is a diagram and then some tables below it. You can see in the figure that BOOTSEL0 (J28) has a jumper around the two left pins, that is pin 1 and 2. And then below in table 3-4, says for BOOTSEL0, the default position is pins 1 and 2. That confirms that the left two pins are 1 and 2.

    Ok, now in the schematic on page 6 on the right side, you can see that pin 1 is pulled high and pin 3 is pulled low, and pin 2 is the signal to the FPGA. So, shorting pins 1 and 2 connects the signal to high.

    In summary, left indicates 1, right indicates 2.