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KITE Reflasher Automotive Engineering Tool

Released Version 0.2.1

A UDS-on-CAN reflashing tool for ECU firmware download and update validation, covering download sequences, Security Access, firmware formats, and trace retention.

Overview

Turn ECU reflashing into a controlled download workflow

KITE Reflasher supports ECU firmware programming, bootloader bring-up, download sequence validation, and pre-delivery update tests. Engineers can configure diagnostic sessions, Security Access, RoutineControl, RequestDownload, TransferData, and ECU Reset steps while keeping firmware artifacts, settings, logs, and traces for analysis.

Download sequence

Manage session, security, routine, download, transfer, and reset steps.

Firmware formats

Process HEX, S-record, BIN, and VBF firmware inputs and prepare download segments.

Traceable update

Preserve ASC traces, step states, failure reasons, and merged firmware details.

Bootloader bring-up

Useful for early bootloader validation and ECU update flow debugging.

Interface Preview

KITE Reflasher
KITE Reflasher ECU firmware download workflow mockup

Interface Preview

KITE Reflasher Core workspaces and engineering operation screens.

KITE Reflasher firmware input, memory config, UDS flash sequence, and execution trace interface mockup

Memory config and UDS flash sequence

Based on MemoryConfigPanel, UdsSequencerPanel, and the reflasher backend for HEX / S-record / BIN / VBF parsing, Security Access, erase, RequestDownload, TransferData, TransferExit, and verify routines.

KITE Reflasher project, flash sector, CRC verification, and reflashing evidence interface mockup

Project-based flashing, sector map, and verification record

Based on ReflasherPrj, MemoryConfigPanel, download_executor.rs, CRC options, and the ASC logger, showing target / variant selection, flash sectors, merge-and-pad, per-block CRC, sector-info tables, merged HEX, and ASC trace output.

Product Highlights

Supports Intel HEX, S-record, BIN, and VBF, including VBF headers, data blocks, and erase regions.

Uses a sequencer for 0x10, 0x27, 0x31, 0x34, 0x36, 0x37, 0x11, delay, and download steps.

Merges file blocks by Memory Settings, pads gaps with 0xFF, and exports merged HEX artifacts.

Supports routine erase, per-block CRC, final CRC commands, sector-info tables, and ASC trace retention.

Core Capabilities

UDS / ISO-TP flashing services

Runs diagnostic sessions, Security Access, RoutineControl, RequestDownload, TransferData, RequestTransferExit, and ECUReset over ISO-TP on CAN.

Multi-format firmware loading

Loads Intel HEX, S-record, BIN, and VBF files, resolving addresses, payloads, VBF headers, data blocks, and erase regions into download blocks.

Sequencer and project persistence

Stores hardware settings, target / variant, functional / physical CAN IDs, memory sectors, and `.udss` sequence steps in a project workspace.

Memory-sector merge

Uses Memory Settings to merge file blocks inside the same sector, pads gaps with 0xFF, and writes disambiguated merged HEX files per download step.

Erase / CRC / sector info

Supports routine erase, per-block CRC, final CRC commands, and KCU Gen1-style sector-info table write / verify flows.

Traceable flashing record

Keeps step status, CAN traffic, ASC logs, merged HEX artifacts, failure reasons, and final state for bring-up, analysis, and delivery evidence.

Typical Firmware Update Workflow

From firmware loading and download configuration to step execution and trace retention, ECU update behavior can be validated repeatedly.

1

Load firmware

Import HEX, S-record, BIN, or VBF and verify addresses and segments.

2

Configure sequence

Set session, security, routine, download, and transfer parameters.

3

Run download

Execute each step and record responses, NRCs, progress, and errors.

4

Keep evidence

Export traces, logs, and firmware handling results for debug or review.

Where It Fits

Useful for bootloader validation, update flow development, firmware delivery testing, and field issue analysis.

Bootloader bring-up

Validate session switching, security, routine, and transfer behavior.

Update validation

Repeat the same sequence across firmware versions and compare results.

Failure analysis

Use NRC, trace, and step logs to analyze download interruption or ECU reset issues.

Supported Formats & Standards

ISO 14229 UDS ISO 15765-2 ISO-TP Intel HEX S-record BIN VBF ASC trace CRC32 UDSS sequence Security DLL

Automotive Product Category

Automotive Engineering Tool

This product belongs to the Automotive Engineering Tool category and supports ECU development, test automation, calibration, validation, and delivery evidence.

Application Scenarios

ECU development Diagnostics Calibration Validation Production support

System Architecture

  • Automotive Engineering Tool architecture for commercial EV, ECU, and automotive software integration.
  • Modular hardware, basic software, application software, calibration, and validation workflow.

Communication Interfaces

  • CAN, CAN FD, LIN, Ethernet, UDS diagnostics, calibration, and vehicle-network integration where applicable.
  • Supports integration with VCU, EVCC, BMS, BCM, gateway, charger, and engineering tools.

Functional Safety

  • Designed for automotive engineering programs that consider ISO 26262, diagnostics, monitoring, and fail-safe behavior.
  • Supports safety-oriented requirements traceability, validation, and production integration planning.

Cybersecurity

  • Supports ISO 21434-oriented cybersecurity planning, secure update flow, access control, and diagnostic protection.
  • Can integrate with secure boot, secure communication, OTA, and vulnerability-management workflows.

OTA / Diagnostics

  • Supports UDS diagnostics, flashing, calibration, test automation, and OTA-ready service workflows when integrated with the KopherBit toolchain.
  • Engineering evidence can include traces, reports, network definitions, and ECU validation outputs.

Integration Capability

  • Can be integrated with AUTOSAR, BSW, SWC, RTE, MCAL, BMS, EVCC, BCM, and commercial EV electronics programs.
  • Suitable for OEM, Tier1, prototype vehicle, electric bus, truck, and specialty vehicle engineering workflows.