> For the complete documentation index, see [llms.txt](https://docs.interlynk.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.interlynk.io/lynkctl/how-to-guides/iar.md).

# IAR Embedded Workbench Firmware

This guide covers generating an SBOM for embedded firmware built with IAR Embedded Workbench for Arm.

## Prerequisites

* lynkctl installed — see [Installation](/lynkctl/installation.md)
* An IAR project (`.ewp`) or workspace (`.eww`)

No IAR toolchain is required. lynkctl reads the project files directly.

***

## Generate an SBOM

Point `generate` at the `.ewp` or `.eww` file. lynkctl selects the IAR provider automatically when `DIR` is one of those files:

```bash
lynkctl generate ./fw/project.ewp -o fw.cdx.json
```

You can also pass the project directory with an explicit `--provider iar`.

## Select a Configuration

IAR projects usually declare more than one configuration, such as `Debug` and `Release`. Choose one with `--iar-config`:

```bash
lynkctl generate ./fw --provider iar --iar-config Release -o fw.cdx.json
```

When `--iar-config` is omitted, lynkctl processes the first declared configuration and reports `IAR_MULTIPLE_CONFIGURATIONS` if others exist.

## Emit Every Configuration

To produce one SBOM per configuration in a single run, use `--iar-all-configs`. This requires `--output` to be a **directory**, and it cannot be combined with `--iar-config`:

```bash
lynkctl generate ./fw --provider iar --iar-all-configs --output ./sboms/
```

## Troubleshooting

If a run reports warnings or errors, rerun with `-v` to see the individual diagnostics and their suggested actions. See [Diagnostics & Exit Codes](/lynkctl/diagnostics.md) for severity levels, exit codes, and strict mode. For help interpreting a specific diagnostic, contact Interlynk.


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.interlynk.io/lynkctl/how-to-guides/iar.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.