Industries · Two-Wheelers & Light EVs
Compact BMS firmware for swappable packs, motor controller software on cost-optimised Arm Cortex-M MCUs, standby and wake current profiling, and the safety and bus evidence behind them. Engineering led from Bengaluru.
BMS and motor controller firmware on Cortex-M, current profiling and bench validation for India's two-wheeler and light EV makers, with ISO 26262 verification evidence.
Electric scooters, motorcycles and light commercial EVs are built under cost and space limits that four-wheel platforms do not face. A compact BMS has to get the most range out of a small pack and keep it thermally safe in Indian conditions. Motor controllers for hub motors and mid-drives run on cost-sensitive Arm Cortex-M microcontrollers. Swappable packs add another conversation on the bus, between the pack, the charger or swap station, and the vehicle. And the vehicle has to meet AIS-156, India’s construction and battery-safety standard for L-category electric vehicles, while the charging side works to the IS 17017 series of Indian EV charging standards, alongside ISO 26262 for the functional safety work.
GSAS writes BMS and motor controller firmware with Keil MDK for the Cortex-M parts these controllers run on, and uses ULINKplus for power profiling while the control code is developed. The Joulescope JS320 measures current across nine decades in one session, from sleep-mode nanoamps to 10 A peaks, which is what standby drain and battery-life estimates depend on.
PicoScope oscilloscopes capture PWM drive signals, CAN and LIN traffic between the BMS and the vehicle ECU, and charging waveforms. GW Instek programmable power supplies drive the BMS across the pack’s voltage range on the bench, so the BMS can be validated on the bench before vehicle integration. Klocwork enforces MISRA rules in static analysis, producing verification evidence for ISO 26262 Part 6 on BMS and motor control software.
Testing and type approval stay with the manufacturer and its testing agency. GSAS produces the functional safety evidence behind them, with tool integration and training. For four-wheel platforms, charging infrastructure and regenerative power benches, see EV & Energy Systems.
Each card lights the part of the light EV drivetrain that service touches, from the swappable pack to the bench and the production line.
Battery and motor controller firmware written for the small, cost-optimised MCUs a light EV can afford.
Current measured from sleep-mode nanoamps to 10 A wake peaks on the controller and BMS electronics, so standby drain is known, not estimated.
Verification evidence for BMS and motor control software, produced as the code is written.
What the pack, the charger and the motor controller actually say to each other, decoded on the bench.
BMS and motor controller software tested against real hardware interfaces, the same way on every change.
Firmware and end-of-line tests at the volumes a two-wheeler line runs, with every unit traceable.
The same discipline on a light EV as on any safety-related controller, sized for the cost and volume of a two-wheeler programme.
01
Targets, rules and tools agreed before the first commit
02
Findings reach the developer who made the change
03
Evidence handed to your homologation and quality teams
Each service above is a full practice at GSAS. These are the pages that describe it in depth.
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.
Joulescope Joulescope JS320 Third-generation precision DC energy analyzer with 0.1 nA resolution and a 24-bit measurement path for low-power embedded systems. Available in India from GSAS with hands-on application engineering and local support. 
Perforce Klocwork Klocwork by Perforce is a scalable SAST tool for C, C++, C#, Rust, Java, JavaScript, Python, and Kotlin, built for DevSecOps with incremental analysis, MISRA, CERT, and CWE enforcement, and TUV SUD certified ISO 26262 and IEC 61508 tool qualification. Deployed and supported across India by GSAS. 
Arm Keil MDK A productivity, debugging, and reliability platform for professional Cortex-M development, MDK v6 brings dual IDE workflows, safety-certified compilers, Arm Fixed Virtual Platforms, and subscription licensing. Buy in India from GSAS. 
Arm ULINKplus Advanced debug adapter with power measurement, test I/O, and SWV trace for Arm Cortex-M development and testing. Available in India from GSAS with hands-on application engineering and local support. 
Pico Technology PicoScope 6000E High-bandwidth USB oscilloscope spanning 300 MHz to 3 GHz bandwidth, FlexRes 8-to-12-bit resolution, and up to 4 GS deep memory. Authorized India partner, GSAS Micro Systems. 
GW Instek GPP-X323 Series Multi-Output Programmable DC Power Supply GW Instek GPP-X323 programmable DC power supply, a 1 to 4 channel benchtop power supply rated to 217 W total, with built-in CC/CV/CR electronic load on CH1/CH2, ≤350 µVrms ripple, ≤50 µs transient response and 0.1 mV/0.1 mA readback. Buy this multi-output DC power supply in India from GSAS, authorized GW Instek engineering partner for Karnataka, Andhra Pradesh and Telangana, with INR pricing, GST invoicing and calibration. A chip shows a published qualification scope where one exists, and the bare standard name where none does.
AIS-156, IS 17017 are listed in this page's standards set, but no tool in the table below carries a published qualification against them, and GSAS does not claim one. Which of these applies to a given programme depends on its scope, jurisdiction and certification basis.
| Tool | Applicable Standards |
|---|---|
| Klocwork (Perforce) | ISO 26262 up to ASIL D |
| Perforce QAC | ISO 26262 up to ASIL D |
| Arm Compiler for Embedded FuSa | ISO 26262 ASIL D (qualified releases) |
| embOS-Safe (SEGGER) | ISO 26262 ASIL D |
| TESSY (Razorcat) | ISO 26262 |
A vehicle, a swappable pack or a controller for someone else’s vehicle.
01
Vehicle programmes to production
BMS and motor controller firmware, ISO 26262 verification evidence and CAN validation for a light EV platform, with production programming and end-of-line test ready when the line starts.
02
Packs, chargers and swap stations
Compact BMS firmware for swappable packs, standby current profiled from sleep to wake, and the CAN traffic between pack, charger and vehicle decoded and replayed on the bench.
03
Motor controllers and BMS to a spec
Motor controller and BMS software on cost-optimised Cortex-M MCUs, with MISRA enforcement, unit tests and HIL regression that a vehicle maker’s quality team can review.
Tell us the MCU, the pack and the standards the vehicle has to meet. GSAS replies from Bengaluru with scope and a proposal: firmware, current profiling, safety evidence and bench validation.
GSAS provides BMS and motor controller firmware on Arm Cortex-M MCUs, standby and range current profiling, ISO 26262 verification evidence, CAN validation between pack, charger and controller, HIL test benches, and production programming and end-of-line test. Engineering is led from Bengaluru.
Yes. GSAS writes compact BMS firmware for swappable packs on Cortex-M MCUs, validates the CAN traffic between pack, charger and vehicle against scripted stimulus on the bench, and adds bootloaders that update in the field and roll back safely.
With a DC energy analyser that covers nine decades of current, from sleep-mode nanoamps to 10 A wake peaks, in one session. GSAS profiles sleep and wake transitions peripheral by peripheral, tunes power modes and validates the battery life estimate. Traction current is outside that range and is measured on the power bench.
Bench evidence: CAN and charging-waveform validation of the pack, the BMS and the charger interface. Type approval against AIS-156 stays with you and your testing agency, and IS 17017 certification of charging equipment with the charger maker and its test lab.
Light EV work is sized for small packs, swappable batteries and cost-optimised Cortex-M controllers, where every microamp of standby current matters. Four-wheel platforms, charging infrastructure and regenerative power benches are covered on the EV and Energy Systems page.
Yes. GSAS is a value added distributor/reseller for the compilers, debug probes, energy analysers, oscilloscopes, programmable supplies and static analysis tools on this page, and its engineers use the same tools on customer projects.
Blog
