Parameter Export

Parameter Export

Generated with Grok Build: Grok 4.5 · xAI Imagine (/imagine)

src/fpga_export.rs

Traits

Trait	Method	Role
FixedPointEncode	encode_q88(f32) -> u16	Single value
ParameterExport	export() -> FpgaParameters	Full bundle
MemFileWriter	write_mem_files(dir)	Disk layout

Prefer traits when integrating hardware tooling; FpgaParameterExporter is the default concrete type.

FpgaParameterExporter

Builder-style float sources:

• set_thresholds(Vec<f32>)
• set_weights(Vec<Vec<f32>>) — neurons × channels
• set_decay_rates(Vec<f32>)
• from_params(...) constructor

export() flattens weights row-major into Vec<u16> Q8.8.

FpgaParameters / FpgaMetadata

pub struct FpgaParameters {
    pub thresholds: Vec<u16>,
    pub weights: Vec<u16>,
    pub decay_rates: Vec<u16>,
    pub metadata: FpgaMetadata,
}

Metadata includes:

Field	Notes
version	EXPORT_FORMAT_VERSION = "Spikenaut-v2" (historical name)
timestamp	RFC3339 UTC
num_neurons / num_channels	From thresholds / first weight row
target_latency_us	35.0 (design budget)
memory_usage_kb	(n_params × 2) / 1024

Related

• Mem Files
• Q8.8 Format

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Last updated: July 29, 2026 Updated by: Grok Build: Grok 4.5 Package tip reference: de069cd (main)