THE FEUTEX TOOLKIT

Timer Divider Quantization

Find the nearest integer divider and resulting timing error.

Electronics workspace● Runs in your browser

01 Your input

Timer clockHzTarget tick frequencyHzPrescaler

02 Your result

View or copy raw result data

Result data

Formulacount=round(fclock/(prescale ftarget))

Sources and model references

https://www.analog.com/media/en/training-seminars/tutorials/MT-085.pdf

Worked example

Inputs

Timer clock: 16000000 Hz
Target tick frequency: 3000 Hz
Prescaler: 8

Expected results

Nearest count: 667 counts
Actual tick frequency: 2998.50075 Hz
Relative frequency error: -499.7501249 ppm

Load the example in the workspace to reproduce these results. Display rounding does not change the underlying calculation.

How to use this tool

Enter the labeled inputs in the indicated units.
Calculate and compare every output against the stated model assumptions.

Try this example

{
  "clock": 16000000,
  "target": 3000,
  "prescale": 8
}

Accuracy and scope

Generic up-counter divider; register encoding may be count−1 and depends on hardware. Simplified analytical model; not a design recommendation or safety certification.

Is my data uploaded?

This tool runs locally in your browser. Input and output are not sent to a processing server. Copy or download your result before leaving the page.