Interfacing ADC with Terasic DE4 board

I am facing issues with interfacing the ADC card (P0035) with Terasic Stratix IV DE4 development board. I am somewhat familiar with DSP builder in MATLAB. Some examples are given in DSP builder handbook but it is for STRATIX III. I built the same program after changing the PIN configuration. As the program is running (building and programming is succesful) but no output is observed in oscilloscope. I just want to a signal intake from AD terminal and display the Signal via DA block. Any help would be highly appreciable.

Answer 1

[Anshuman]

Hey Abhishek,

There are a few things you might want to check if you're not getting any output on your oscilloscope:

• Ensure that the pin assignments for the ADC card (P0035) are correctly mapped to the corresponding pins on the Stratix IV DE4 board. The pin assignments can be different between Stratix III and Stratix IV boards.
• Verify that the I/O standards (voltage levels, etc.) for the ADC are compatible with the DE4 board and that they are correctly set in your Quartus project.
• Check the clock domains in your design. Make sure that the ADC is being clocked correctly and that any necessary clock domain crossing is handled properly.
• If possible, simulate your design to ensure that the logic is functioning as expected. This can help catch issues that might not be obvious in the hardware.
• Test each part of your design incrementally. For example, first ensure that you can read from the ADC without any DSP logic. Then add in the DSP components one at a time.