Forum Discussion

Daiyan's avatar
Daiyan
Icon for New Contributor rankNew Contributor
1 year ago

Connecting Function Generator with FPGA

I want to take square wave with 1Hz frequency (50% duty cycle) generated from a function generator as input to the FPGA board (Cyclone V, 5CSEMA5F31C6N). I am trying to give a square pulse of 1hz as ...
Platform
FvM's avatar
FvM
Icon for Super Contributor rankSuper Contributor
1 year ago

Hi,
the photo suggests that you have no ground connection between generator and FPGA board, only (red) signal line. Also the oscilloscope probe used to send function generator output is probably a 10:1 probe, involving a large series resistance.

According to photo, you are also feeding GPIO_0_34 (JP1 pin 39) rather than GPIO_0_0 (JP1 pin 1).


Just in case, notice that input voltage must not exceed the range of 0..3.3 V.

Regards
Frank

  • Daiyan's avatar
    Daiyan
    Icon for New Contributor rankNew Contributor
    1 year ago

    Hello Frank,

    Thank you very much. My pin planning was wrong. Now it works.

    -Daiyan.