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Industries · Automotive & Mobility

ECU software, safety and networks, engineered and verified in India.

AUTOSAR software, ISO 26262 evidence, cybersecurity for UNECE R155, and CAN, LIN and automotive Ethernet validation for the teams building software-defined vehicles. Engineering led from Bengaluru.

  1. 02 What we engineer
  2. 05 Tools and standards
  3. 07 How to start
01

ECU Software, Safety and Networks.

ECU software, ISO 26262 and UNECE R155 evidence, and CAN, LIN and Ethernet validation for ADAS, powertrain, body and connected vehicle platforms.

Software now decides much of what a vehicle does, and it runs across many Electronic Control Units, each with its own safety and security case. GSAS engineers ECU software and produces the verification evidence as the code is written. The safety case, type approval and certification stay with the vehicle manufacturer and its assessor.

The work follows the automotive V-model, from requirements through unit testing and integration. Klocwork and Perforce QAC check code against MISRA and AUTOSAR C++14 rules for ISO 26262 work. TESSY by Razorcat automates unit testing with MC/DC coverage, and Razorcat states it is qualified for ISO 26262. J-Link PRO provides on-target debug and trace, PicoScope decodes CAN, LIN and FlexRay traffic, and our automotive Ethernet capture and validation capability extends the same bench discipline to 100BASE-T1, SOME/IP and DoIP. On the electrical side, ISO 16750-2 supply voltage testing covers the starting profile, voltage drops, reset behaviour and load dump a control unit must survive on a 12 V or 24 V bus.

UNECE R155 and R156 and the EU Cyber Resilience Act add cybersecurity evidence to the safety work. Klocwork and Perforce QAC check code against MISRA, AUTOSAR C++14 and CERT rules in CI, and GSAS engineers secure boot and HSM integration on the ECU. Type approval and the cybersecurity management system stay with the vehicle manufacturer.

02

Six automotive services, mapped onto the vehicle.

Each card lights the part of the vehicle architecture that service touches, from the ECU software stack to the in-vehicle networks it talks over.

Automotive & Mobility: the system GSAS engineers for, with each GSAS service numbered where it applies, as on the service cards Vehicle E/Earchitecture ECU software stack AUTOSAR, RTOS, BSP Safety case ISO 26262 ASIL A to D Gateway and HSM Secure boot, R155 CAN and LIN buses Body and powertrain Ethernet backbone 100/1000BASE-T1 Test bench HIL, SIL and CI 1. ECU software stack: AUTOSAR, RTOS, BSP 1 2. Safety case: ISO 26262 ASIL A to D 2 3. Gateway and HSM: Secure boot, R155 3 4. CAN and LIN buses: Body and powertrain 4 5. Ethernet backbone: 100/1000BASE-T1 5 6. Test bench: HIL, SIL and CI 6
  • 1. ECU software stack: AUTOSAR, RTOS, BSP
  • 2. Safety case: ISO 26262 ASIL A to D
  • 3. Gateway and HSM: Secure boot, R155
  • 4. CAN and LIN buses: Body and powertrain
  • 5. Ethernet backbone: 100/1000BASE-T1
  • 6. Test bench: HIL, SIL and CI
Hover, tap or focus a number or a card to see where each service sits in the vehicle.
  1. AUTOSAR and ECU software

    Basic software, drivers and application integration for automotive microcontrollers.

    • AUTOSAR Classic and Adaptive integration
    • BSP, board bring-up and RTOS integration
    • Bootloaders and over-the-air update paths

    Embedded software engineering

  2. ISO 26262 safety evidence

    The verification evidence an assessor expects at each ASIL, produced as the code is written.

    • MISRA C:2023 and AUTOSAR C++14 enforcement with deviation records
    • Unit testing with statement, branch and MC/DC coverage
    • Tool classification and qualification kits under ISO 26262-8

    Functional safety engineering

  3. Cybersecurity for R155 and R156

    Security designed into the ECU, with the evidence a cybersecurity management system needs.

    • Secure boot chains and HSM integration
    • ISO/SAE 21434 threat analysis and risk assessment support
    • Static analysis for CWE and CERT findings in CI

    Security engineering

  4. CAN, CAN FD and LIN validation

    What is actually on the bus, decoded, and the physical layer that carries it.

    • CAN and CAN FD capture with J1939, ISO-TP, UDS and OBD-II decode
    • Physical-layer checks against ISO 11898-2
    • LIN 2.x and SAE J2602 schedule and response-time analysis

    CAN and LIN bus testing

  5. Automotive Ethernet

    Physical layer to diagnostics on the in-vehicle Ethernet backbone.

    • 100BASE-T1 and 1000BASE-T1 physical-layer validation
    • SOME/IP, DoIP and UDS debugging
    • TSN and 802.1AS time synchronisation checks

    Automotive Ethernet testing

  6. Test benches and regression

    ECU tests that run the same way every time, on the bench and in CI.

    • HIL and SIL test design
    • Scripted bus stimulus and regression captures
    • On-target tests and trace through a debug probe

    Testing and validation

03

Down the V-model, with evidence at every step.

The same discipline from requirement to ECU on the bench: each stage leaves something an assessor, a homologation engineer or the next team can check.

  1. 01

    Specify

    Safety
    ASIL decomposition inputs, tool classification
    Security
    Threat analysis and risk assessment support
    Coding rules
    MISRA C:2023 and AUTOSAR C++14 baseline

    Rules and tools agreed before the first commit

  2. 02

    Build

    Software
    AUTOSAR integration, drivers, bootloader
    Analysis
    Static analysis gating every change in CI
    Unit test
    Requirements-based tests with MC/DC coverage

    Findings reach the developer who made the change

  3. 03

    Prove

    On target
    Tests and trace on the real core
    Networks
    CAN, LIN and Ethernet captured and decoded
    Electrical
    ISO 16750-2 supply profiles on a programmable DC bench

    Evidence packaged for the safety and security case

The GSAS build and test facility at Doddaballapur, Bengaluru Rural, Karnataka, opened in 2026
Doddaballapur · Build and test Half-acre site, opened 2026. About the facility
Half-acre build and test site, Bengaluru Rural, opened 2026
Doddaballapur
Specialists, engineering led from Bengaluru
40+
In 9 Indian cities
11 offices
Certified by TÜV Rheinland
ISO 9001:2015
05

The tools Automotive & Mobility teams use, and GSAS engineers use too.

GSAS is a value added distributor/reseller for these products. We have a dedicated FAE team ready to help you with custom built solutions matching your needs.

All products →

06

Standards listed for Automotive & Mobility, and the tools placed against each.

A chip shows a published qualification scope where one exists, and the bare standard name where none does.

AUTOMOTIVE ISO 26262
REGULATION EU Cyber Resilience Act
CYBERSECURITY UNECE R155/R156
CODING STANDARDS MISRA C:2023
CODING STANDARDS AUTOSAR C++14
Tool Applicable Standards
Klocwork (Perforce)
ISO 26262 up to ASIL DMISRA C:2023UNECE R155/R156EU Cyber Resilience Act
Perforce QAC
ISO 26262 up to ASIL DMISRA C:2023AUTOSAR C++14
Arm Compiler for Embedded FuSa
ISO 26262 ASIL D (qualified releases)
embOS-Safe (SEGGER)
ISO 26262 ASIL D
emCrypt (SEGGER)
UNECE R155/R156EU Cyber Resilience Act
TESSY (Razorcat)
ISO 26262
07

Three ways to start, depending on where your programme is.

A vehicle programme, an ECU on a supplier’s bench, or a new EV platform.

  1. 01

    OEM programmes

    Platforms and vehicle integration

    Engineering capacity for software-defined vehicle platforms: AUTOSAR integration, network validation across CAN, LIN and Ethernet, and the security evidence UNECE R155 type approval asks for.

    • AUTOSAR Classic and Adaptive
    • Network validation
    • R155 and R156 evidence
  2. 02

    Tier-1 suppliers

    ECUs to an OEM specification

    ISO 26262 verification evidence produced alongside the code: MISRA enforcement, unit tests with MC/DC coverage, tool qualification, and test benches that rerun on every change.

    • ASIL A to D evidence
    • Tool qualification
    • HIL and SIL benches
  3. 03

    EV and new-mobility start-ups

    First platform to production

    Battery management, motor control and gateway software for a first platform, with the safety and security groundwork in place before the programme scales.

    • BMS and motor control
    • Safety and security groundwork
    • Production flashing
08

Building an ECU or a vehicle platform?

Tell us the ECU, the ASIL and the networks it sits on. GSAS replies from Bengaluru with scope and a proposal: software, safety and security evidence, and bus validation.

sales@gsasindia.com +91 80 6590 1783

Automotive & Mobility engineering with GSAS in India

What automotive engineering services does GSAS provide in India?

GSAS provides AUTOSAR and ECU software engineering, ISO 26262 verification evidence, cybersecurity engineering for ISO/SAE 21434 and UNECE R155, CAN, CAN FD and LIN validation, automotive Ethernet testing, and HIL and SIL test benches. Engineering is led from Bengaluru.

Can GSAS help us produce ISO 26262 evidence for an ASIL D ECU?

Yes. GSAS enforces MISRA C:2023 and AUTOSAR C++14 with deviation records, writes requirements-based unit tests with MC/DC coverage, and classifies how each tool is used, deploys the vendor qualification kits and helps prepare the tool documentation for your ISO 26262-8 activity. Hazard analysis and the safety case stay in your safety process. This work produces the evidence for them.

Does GSAS work on UNECE R155 and R156 cybersecurity?

GSAS engineers the ECU side: secure boot chains, HSM integration, ISO/SAE 21434 threat analysis support and static analysis for CWE and CERT findings. Type approval and the cybersecurity management system remain with the vehicle manufacturer.

Can GSAS validate CAN, LIN and automotive Ethernet networks?

Yes. GSAS captures and decodes CAN and CAN FD traffic, checks the physical layer against ISO 11898-2, analyses LIN schedules, and validates 100BASE-T1 and 1000BASE-T1 links with SOME/IP, DoIP and UDS debugging.

Does GSAS also supply the automotive tools?

Yes. GSAS is a value added distributor/reseller for the static analysis, unit test, debug and bus analysis tools on this page, and its engineers use the same tools on customer projects.

Latest Thinking: Automotive & Mobility

Automotive electronic control unit circuit board, illustrating the class of design served by Stellar microcontrollers and supported in India by GSAS
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J-Link Is Now Validated by ST for StellarStudio

STMicroelectronics has fully validated SEGGER J-Link for StellarStudio, the IDE for its Stellar automotive MCU family, and put the probe into continuous validation at Le Mans. What that changes for the toolchain review on a Stellar programme, from GSAS, an authorized engineering partner for SEGGER in India.

13 Sept 2026 · 2 min read
Master and slave roles on a 100BASE-T1 link: the master PHY times its transmitter from a local clock, the slave recovers the clock from the received signal, with the both-master and both-slave misconfigurations that leave the link down, from GSAS Micro Systems India
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100BASE-T1 Link Won't Come Up: A Vendor-Neutral Checklist

A 100BASE-T1 link that will not come up is almost never a mystery, but the answers on the web are written per silicon vendor and do not transfer. This is the ordered bring-up checklist that holds regardless of which PHY, switch or SoC you have: physical layer first, then the PHY over MDIO, then the master and slave pairing, then the causes of a link that comes up and drops. The standards and tooling claims trace to IEEE 802.3 task force records, the Linux ethtool and kernel documentation or published test material. Written by the GSAS Micro Systems engineering team in India.

29 Aug 2026 · 14 min read
Five-step master and slave decision flow for a 100BASE-T1 media converter: read the ECU port role, set the converter to the complement, match the speed, check the wiring, link up, from GSAS Micro Systems India
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100BASE-T1 Media Converters: How to Choose One

Search for a 100BASE-T1 media converter and you get SKU pages that document their own DIP switches, plus a pile of copper-to-fibre converters that have nothing to do with single-pair automotive Ethernet. This is the selection guide neither publishes: what the box does at the PHY layer, when a converter is the wrong box, and the nine criteria that decide fitness, each written as a question to put to the supplier rather than a specification we invented. Standards claims trace to IEEE 802.3 task force records and the public OPEN Alliance specifications. Written by the GSAS Micro Systems engineering team in India.

29 Aug 2026 · 13 min read
Side by side comparison of a 10BASE-T1S multidrop mixing segment, one balanced pair with four nodes on short stubs and a termination at each end, against a point to point star of four separate links into switch ports, from GSAS Micro Systems India
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10BASE-T1S and PLCA: Multidrop Ethernet Explained

10BASE-T1S is the one member of the T1 single-pair Ethernet family that keeps a shared medium, and PLCA is the reconciliation sublayer that stops the nodes on it from colliding. This article covers what IEEE 802.3cg standardises, how the beacon and transmit opportunities schedule a cycle, the node count and segment length figures the OPEN Alliance interoperability test suite works to, and the failure modes that put a segment quietly back into contention while every link still looks up. Written by the GSAS Micro Systems engineering team in India for teams bringing up multidrop segments on the bench.

29 Aug 2026 · 12 min read
Horizontal stacked bar showing where an ADAS test vehicle's bandwidth budget is spent, split into cameras, lidar, radar and bus traffic, with the logger uplink limit drawn as a vertical rule crossing the bar, from GSAS Micro Systems India
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ADAS Sensor Data Logging: Bandwidth Budgets That Add Up

Every page that tells you an ADAS test vehicle produces terabytes a day states the headline and skips the arithmetic, so you cannot redo it for your own sensor set. This article publishes the arithmetic instead: one formula, every table row derived on the page, a worked eight-hour drive that chains those rows into a sustained write rate, a media count and an offload window, and the five places bandwidth budgets go wrong. Written by the GSAS Micro Systems engineering team in India.

29 Aug 2026 · 15 min read
Storage sizing ladder for automotive data logging: four rungs stepping from an aggregate link rate of 1 Gbit/s to 125 MB per second, then 450 GB per hour, then 3.6 TB per eight-hour shift, then 18 TB per five-day week, in decimal units, from GSAS Micro Systems India
Automotive Ethernet Automotive & Mobility

Automotive Data Loggers: Capture Without Loss

Search for an automotive data logger and the results split into cheap OBD dongles at one end and enterprise ADAS recorders at the other, with nothing in between explaining the engineering that decides whether you lose frames. This is the loss budget end to end: mirror oversubscription upstream of the logger, encapsulation overhead on the capture path, sustained write rate against burst rate, rotation stalls, and storage arithmetic worked in full so you can redo it with your own numbers instead of trusting ours. Written by the GSAS Micro Systems engineering team in India.

29 Aug 2026 · 13 min read
The bench to harness adapter path drawn left to right: the ECU connector, a test lead, a media converter or pluggable T1 module, RJ45, and the host, showing where each connector family sits between the device under test and the laptop, from GSAS Micro Systems India
Automotive Ethernet Automotive & Mobility

Automotive Ethernet Connectors: H-MTD, MATEnet, MQS

An ECU arrives on the bench with a connector nobody has a mate for, and the day is gone. Search the family names and you get connector product pages that describe their own part and stop there. This article puts the families side by side in one table using only what their public pages state, then makes the point those pages leave out: the IEEE link segment definition, not the connector, is what sets reach and loss limits, and shielding is a channel decision rather than a preference. Written by the GSAS Micro Systems engineering team in India.

29 Aug 2026 · 12 min read
Two test paths leaving the same device under test, one into a conformance suite that returns a passed report and one into a partner node that surfaces a field defect, showing why an ECU can clear a published suite and still fail in a vehicle, from GSAS Micro Systems India
Automotive Ethernet Automotive & Mobility

Automotive Ethernet Conformance: TC8 and Testing Above It

Summarising TC8 as a layer 1 to layer 4 suite is wrong in both directions. The public OPEN Alliance ECU test documents run from transmitter distortion up to a SOME/IP chapter with its own standardised test stub, and they contain exactly one time synchronisation test case. This is what those documents enumerate, chapter by chapter, what genuinely lives above their boundary, why a passing ECU can still fail against a partner node, and how much pre-compliance work a Tier-1 in India can honestly do in-house before a test house visit. Written by the GSAS Micro Systems engineering team in India.

29 Aug 2026 · 12 min read
Minimum bring-up bench versus full validation rig for automotive Ethernet in India: on the left one ECU through a media converter to a laptop, on the right three ECUs into a lab switch with a mirror port feeding a capture module and a logger and an uplink to the analysis host, from GSAS Micro Systems India
Automotive Ethernet Automotive & Mobility

How to Choose an Automotive Ethernet Switch for the Lab

Search for an automotive Ethernet switch and you get silicon selection tables written for the engineer choosing a die for a zonal controller. The person searching from a validation lab wants a boxed switch that reproduces a vehicle network on a bench, and finds nothing addressed to them. This is that guide: how to separate the two products, how to count the ports you actually need, and an eight-row scoring matrix written as questions to put to a supplier rather than specifications we invented. Standards and documentation claims trace to IEEE 802.1 and 802.3, ASAM, AUTOSAR, the IETF and public Linux and Wireshark documentation. Written by the GSAS Micro Systems engineering team in India.

29 Aug 2026 · 13 min read
Ladder chart of the T1 single-pair Ethernet family by data rate: 10BASE-T1S (802.3cg), 100BASE-T1 (802.3bw), 1000BASE-T1 (802.3bp), 2.5/5/10GBASE-T1 (802.3ch) and 25GBASE-T1 (802.3cy), one balanced pair across five IEEE standards, from GSAS Micro Systems India
Automotive Ethernet Automotive & Mobility

The T1 Family Explained: 10BASE-T1S to Multi-Gig 802.3ch

The T1 family is the set of single-pair Ethernet physical layers used in vehicles, and every member is documented separately inside a different datasheet. This guide puts all of them in one table with rate, symbol rate, line code, specified reach and cabling traced to public IEEE task force documents, then answers the two questions that keep coming back: why 100BASE-T1 has no auto-negotiation, and why one end has to be master. Written by the GSAS Micro Systems engineering team in India.

29 Aug 2026 · 13 min read
Split panel diagram comparing one control message on a shared multidrop CAN bus with one sensor stream on a switched point to point Ethernet link, labelled shared bus arbitration, node, point to point link, switch, control message and sensor stream, from GSAS Micro Systems India
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CAN vs Automotive Ethernet: When to Use Each

CAN and automotive Ethernet answer different questions, so the useful comparison is a decision table rather than a winner. This guide from GSAS Micro Systems sets CAN and CAN FD figures from CAN in Automation next to the IEEE 802.3bw objectives for 100BASE-T1, covers arbitration against switch queues, cost and harness consequences, failure modes on both sides, and what changes on an India bench team's setup when a project adds Ethernet next to the CAN it already runs.

29 Aug 2026 · 14 min read
The landed cost stack for imported automotive Ethernet test gear drawn as a vertical build, starting from the quoted ex-works price and adding freight and insurance, basic customs duty, IGST on import, and clearance and handling, ending at the landed cost figure that reaches the budget line, from GSAS Micro Systems India
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Buying Automotive Ethernet Test Gear in India

Search for a 100BASE-T1 tap or a T1 to RJ45 media converter from India and the results are fibre media converters and LAN cable testers, none of which are T1, and no forum thread that has been through the purchase. This is the missing page: the capability table for a first bench with a defer-or-borrow column, an honest account of what is stocked here versus imported to order, the parts that make up a landed cost as a structure rather than a number, and the compliance portals your teams will actually use. No prices, no duty rates and no lead-time bands, because all three change and none of them belong in an article. Written by the GSAS Micro Systems engineering team in India.

29 Aug 2026 · 13 min read