Edocti Training

AUTOSAR Memory Stack — Essentials

Name: AUTOSAR Memory Stack — Essentials
Rating: 4.7 (220 reviews)

Intermediate

7 h

4.7 (220 reviews)

Scheduled sessions

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Reliable storage mastery: Understand how NvM, Fee/Ea, and MemIf modules work together to ensure data persistence in modern automotive ECUs.

Dive into Flash and EEPROM hardware fundamentals and map them to their specific responsibilities within the AUTOSAR stack.

Learn to configure and troubleshoot standard data flows: from block management and CRC validation to robust error handling and power-fail protection.

Gain practical experience: Participate in guided labs focused on ARXML configuration and the analysis of complex memory access traces.

How this helps: Build the confidence to correctly integrate and optimize non‑volatile storage solutions in mission-critical ECU software.

Who it’s for: Embedded and automotive engineers with an AUTOSAR background who are new to the Memory Stack.

The course also covers performance tuning, wear‑leveling strategies, and seamless diagnostics integration.

Skills You Will Learn

Non-Volatile Memory (NvM) Memory Interface (MemIf) Flash EEPROM Emulation (Fee) EEPROM Abstraction (Ea) Data Integrity & CRC Power-Fail Tolerance NVRAM Block Configuration Memory Performance Tuning

Curriculum

Foundations

Memory stack overview; goals and data lifecycles
Flash vs. EEPROM trade-offs (endurance, erase/program, wear-leveling)
NVRAM requirements: integrity, CRC, redundancy, power-fail tolerance
ARXML basics for NVRAM entities

NvBlockSwComponents

Architectural overview and capabilities
NvData Ports; mapping application data to NVRAM blocks
Designing NvBlockSwComponents: ownership, update patterns, init defaults
Nv Block Descriptor essentials (ID, length, RAM mirror, ROM defaults, dataset)

NvM — Non-volatile Memory Manager

Responsibilities and block state machine; queues and priorities
Configuration: block descriptors, CRC, single vs. redundant blocks, dataset blocks
APIs in practice: NvM_ReadBlock/NvM_WriteBlock/NvM_SetRamBlockStatus/...
Error reporting (Dem) and notifications; performance tips

MemIf — Memory Abstraction Interface

Role and function groups (read/write/erase/cancel/status/job control)
Binding to Ea and Fee; driver responsibilities and limitations
When to choose Ea vs. Fee; implications for block layout

Ea and Fee/Fls layers

EEPROM Abstraction (Ea): addressing model and block configuration
Flash EEPROM Emulation (Fee): sectors, wear-leveling, garbage collection
Fls driver basics; timing and constraints from hardware

Integration lab and troubleshooting

Hands-on: define NvM blocks, connect MemIf↔Ea/Fee, persist data across reset
Typical issues: inconsistent lengths, missing ROM defaults, job queue overflows
Measuring write times and verifying CRC/robustness

Optional modules

Optional — robustness & performance

Power-fail test patterns; atomic updates, redundant blocks
Throughput vs. endurance tuning; background vs. immediate jobs
Versioning of NVRAM data structures

Course Day Structure

Part 1: 09:00–10:30
Break: 10:30–10:45
Part 2: 10:45–12:15
Lunch break: 12:15–13:15
Part 3: 13:15–15:15
Break: 15:15–15:30
Part 4: 15:30–17:30