We have found a solution to an offset problem between 2 sine waves, however we are unable to explain the delay calculations... (Someone else did the work a long time ago, now we need to explain the fix). (All information displayed in image below) The FPGA derived is at 80MHz. There's 6us delay between the input Sinewave and the generated Sinewave from that input. Sinewave period is 416us. The initial reasoning was to put a 404 Tick delay (The way it was added is wrong of course). But 404 Tick delay is still calculable: 404*(1/80MHz) = 5.05us The actual working implementation has 9 blocks of 512 Discrete Delays. However this calculation is not adding up in any way to the 6us (or even 410us delay for the initial period to be lost). 9*512*(1/80MHz) = 57.6us. The system automatically detects if there is an error greater than 5 degrees phase shift. Are my calculations wrong? Thanks 🙂

LabVIEW

[FPGA] Tick Wait vs Discrete Delay not adding up

This may be seen as 'smart alec' comment, but it is good advice- it's worth reading the FPGA help end-to-end and getting a firm grounding. It will save time in the long run.

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LabVIEW

[FPGA] Tick Wait vs Discrete Delay not adding up

Re: [FPGA] Tick Wait vs Discrete Delay not adding up