/**
 * STM32 firmware build (CrossPad r20 single-board target).
 *
 * Drives the CMake + Ninja + arm-none-eabi toolchain via CMakePresets.json:
 *   configure → `cmake --preset <Debug|Release>`  (binaryDir = build/<preset>)
 *   build     → `cmake --build build/<preset>`
 *
 * The arm-none-eabi-gcc toolchain is wired through the preset's `toolchainFile`
 * (cmake/gcc-arm-none-eabi.cmake), so no special environment is needed here —
 * unlike PC (MSVC) or IDF (export.sh). GCC diagnostics are the standard
 * `file:line:col: error:` form, so parseErrors/countWarnings from the PC build
 * apply unchanged.
 */
import { StmPreset } from "../config.js";
import { OnLine } from "../utils/exec.js";
import { BuildResult } from "./build.js";
/**
 * Map the unified build_type axis onto the two STM presets. The repo only
 * defines Debug and Release presets; RelWithDebInfo collapses to Release.
 * @internal exported for testing
 */
export declare function stmPresetFor(buildType: string): StmPreset;
export declare function crosspadStmBuild(mode: "incremental" | "clean" | "reconfigure", onLine?: OnLine, buildType?: string, signal?: AbortSignal): Promise<BuildResult>;