Firmware FAQs

Ask Flux to work from the schematic, source code, and mechanical model in your project. The Firmware reference links to each workflow.

How do I write firmware from my schematic?

Tell Flux what behavior the device needs and which peripherals it uses.

Write firmware for this schematic. Read the sensor over I2C and send values over USB serial.

Initialize this motor controller and use its encoder to control the motor speed.

Open the Chat panel and ask Flux to create a firmware starter document. Flux records the microcontroller, framework, build system, libraries, pin defines, peripheral setup, startup order, error handling, watchdog, and build instructions. Open Files to read the result. See Write firmware.

Can Flux continue from my code?

Tell Flux where the firmware source is and what you want to change.

Read this public firmware repository and add support for the sensor in the schematic.

Continue from this ZIP and update the code for the new actuator.

Open Chat to share a public Git repository link, upload a ZIP, or paste source files. Ask Flux to connect the existing code to the project schematic and create a firmware starter document. See Write firmware.

Can Flux create a pin map?

Tell Flux to map the schematic pins, nets, buses, and device settings.

Create a pin map with function, MCU pin, connected net, direction, and notes.

Document the I2C addresses, SPI and UART settings, clock, power modes, and boot pins.

Open Chat and ask Flux to create or update the pin map. Open Files to read the table and firmware defines. Flux maps peripherals to the schematic and checks pin and bus assignments. See Pin and peripheral setup.

How do I build and test firmware?

Tell Flux which target to build and which checks to run.

Build this firmware, report the image files, flash and RAM use, and give me the flashing command.

Run host unit tests, check memory and undefined behavior, report coverage, and analyze the source.

Open Chat and request a build or tests. Flux returns image files as project files, reports memory use, and gives a command you run on your computer with the board connected. Open Files to read the output and build notes. See Build and test firmware.

How do I prepare a board bring-up plan?

Tell Flux which power, programming, and functional tests to include.

Create a bring-up plan with expected voltages, reset and boot checks, and programming steps.

Add bus scans, loopbacks, sensor and actuator checks, and expected measurements.

Open Chat and ask Flux to create the plan. Open Files to read the prerequisites, power rail table, critical signals, connector checks, programming steps, and pass/fail summary. Ask Flux to create bring-up firmware for the tests. See Board bring-up.

How does firmware stay in sync with my hardware?

Tell Flux which schematic, PCB, or mechanical change to include.

I changed the sensor pins. Update firmware, the pin map, and bring-up plan.

Use the sensor position from the mechanical model as a firmware constant.

Open Chat after a design change. Ask Flux to update the firmware document and pin map, compare the map with the schematic, and update the bring-up plan. To use field data, select AI Integrations in the Chat panel, open the Integrations tab, and choose Firmware & Development. See Firmware with your hardware.

Can Flux use field data and public repositories?

Tell Flux which repository or field information to use with your current design.

Read this public firmware repository and compare its driver with my schematic and pin map.

Use Memfault crash data to guide firmware and hardware changes for the next revision.

Open Chat and share a public Git repository link to read its source. To connect field data, select AI Integrations in the Chat panel, open the Integrations tab, and choose Firmware & Development. Connect GitHub, GitLab, or Memfault, then ask Flux to summarize code or crash data with the current project. See Firmware with your hardware.

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