← Back
Home › Systems › Embedded and IoT

automotive-ecu

automotive ECU software

AUTOSAR, CAN

SystemTechniques · 19Primitives · 67 automotive-ecu Deterministic simulation testingdistributed · medium: Run the whole system in one thread under a seeded scheduler with simulated network, disk and clock, so every failure replays from its seed.›Primary-backup replicationdistributed · medium: One node orders all writes and ships them to standbys; the acknowledgement rule (none, one, all) sets what a crash loses, and an external arbiter decides who takes over.›A/B partition updatesembedded · medium: Two bootable slots and a small atomic metadata block: write the new image to the idle slot, try it once, and fall back by itself unless it reports healthy.›Fault tree analysisembedded · medium: Write the unwanted top event as AND/OR logic over component failures, reduce it to minimal cut sets, then compute its probability and each failure's share.›Safety-critical coding standardsembedded · medium: Which rule sets (MISRA C, CERT C, JPL Power of Ten, Rust lint subsets) apply when software must not fail, what they forbid, and how to enforce them in CI.›Secure onboard communicationembedded · medium: Truncated MACs plus freshness values authenticating in-vehicle bus messagesCoverage-guided fuzzingsecurity · medium: Mutate inputs, run an instrumented target, and keep any input that reaches a new code edge; feedback turns blind guessing into incremental search.›Watchdog timerembedded · low: A hardware down-counter that resets the chip unless software proves, in time and in a plausible pattern, that it is still healthy.›CRC32C checksumshardware-os · low: The Castagnoli CRC-32 with dedicated instructions on x86 (SSE4.2) and ARMv8. It is the standard fast integrity check for storage blocks, logs and network frames.›Secure boot chainsecurity · low: Each boot stage verifies the signature of the next before running it, anchored in an immutable ROM key hash, with version counters against downgrade and a TPM log of what ran.›Can bus framingembedded · low: CAN / CAN FD frames, bitwise arbitration, bit stuffing, CRC and error confinementMessage authentication codes (HMAC,…security · low: A keyed short tag proving a message is unmodified and came from a key holder; pick HMAC, CMAC, KMAC or a one-time polynomial MAC by what primitive you already have.›Hdr histogramdata-structures · low: Log-linear bucketed histograms with bounded relative error for latency percentilesEnd to end protection e2eembedded · low: Per-message counter, ID and CRC over a black channel to detect loss, repetition, corruption, delayIso tp segmentationembedded · low: ISO 15765-2 transport: segmentation and flow control of large messages over CANMemory protection unitembedded · low: A handful of base/size regions with permissions, checked on every access by the CPU, give microcontroller tasks isolation and stack-overflow traps without an MMU.›Preemptive priority schedulingembedded · low: Always run the highest-priority ready task, switching the instant a higher one becomes ready; selection is O(1) with one FIFO per priority and a bitmap.›Rate monotonic analysisembedded · low: Schedulability tests and response-time analysis for periodic real-time tasksTime triggered schedulingembedded · low: Static cyclic schedules where every task and message has a precomputed time slotUds diagnosticsembedded · low: UDS (ISO 14229) diagnostic services: sessions, security access, DTCs, flashingDeterministic fixed-point mathgame-networking · low: Bit-identical simulation math across CPUs, compilers and builds: integer fixed-point formats, the float traps (FMA, x87, fast-math, libm), deterministic trig, sqrt and RNG.›Interrupt handlinghardware-os · low: How a device signal reaches a CPU handler through an interrupt controller and vector table, and how top/bottom halves, polling switch-over and coalescing keep load bounded.›Process supervisionhardware-os · low: A parent process starts services, reaps their exits and restarts them under a delay and burst-limit policy, then stops them with SIGTERM before SIGKILL.›+ 12 more techniques+ 51 more primitives

Similar systems

Share the most building blocks with this one.

software-defined-vehicle-os 53 %cgm 37 %motor-drive 36 %infusion-pump 35 %solar-inverter 33 %

In-house systems

Named systems of this kind at large companies, with their paper or write-up.

AreneToyota Motor