In development · Installed software

Fixed-Point Calculator

Q-format arithmetic worked out in a browser tab, before it goes wrong on the target.

Embedded engineers who have shifted the wrong way at three in the morning.

Animated schematic of the interface. Layout follows the build as it stands; contents are illustrative.

What it is

A web calculator for fixed-point (Q-format) arithmetic — conversion, range, resolution and the rounding error you actually get — written because doing it by hand while writing DSP firmware is tedious and error-prone.

Capabilities

Embedded engineers who have shifted the wrong way at three in the morning.

Q-format conversion
Q-format conversion with range, resolution and representation error shown together
Static, no backend
Static, no backend, works offline

How it works

This is how Fixed-Point Calculator works, not a set of steps you can follow yet — it is in development and not distributed.

Install it
Fixed-Point Calculator runs on your machine. There is no account to make and no service to depend on.
Point it at your work
It reads what you already have, in the formats you already keep it in.
Keep the result
Output stays where you put it. Nothing is uploaded to make the feature work.

Specification

Read from the repository at build time rather than typed onto a marketing page.

Related work

STM32 Platform A firmware platform for STM32 with no vendor code in the build

Ask about availability, a build for your platform, or a licence.