Multiplier IP-Core not working in hardware

Question

Hi,
I'm using Vivado 2015.1 and I want to implement an easy design for Zedboard.
I'm using Vivado's Multiplier IP-Cores and Clock Wizard IP-Core.
In Simulation, everything is working fine.
But the multiplier is not working in hardware, although the Clock-Wizard-component is working.
I tried using DSP48-Slices only and LUTs only.
The scenario:
1: A x B = C
2: C + D = E
A = 5, B = 5, D = 5.
If E equals 30, then all 8 LEDs will shine.
If E equals 5, then only 2 LEDs will shine.
On my Zedboard only 2 LEDs will shine, thus the product of A x B equals 0.
I set pipelinestages the suggested way and I'm getting, using DSP48-slices only, a warning about output pipeline.
Thanks for reading
Sam

Answer 1


Check for the warning messages generated after Synthesis and Implementation phase to get the idea about the issue.
Try to run post-synthesis or post-implementation simulation to check the behavior.
Thanks,
Anusheel
Search for documents/answer records related to your device and tool before posting query on forums.
Search related forums and make sure your query is not repeated.
Please mark the post as an answer "Accept as solution" in case it helps to resolve your query.
Helpful answer -> Give Kudos
-----------------------------------------------------------------------------------------------