This post is a guide to the architectural layout and usage of flash memory. We will be looking at the Infineon Aurix TriCore platform here for reference. Every manufacturer has its lingo. Always refer to your controller datasheet for details. The NVM Subsystem In Aurix, the flash memory and related components are collectively…

What is Polyspace? In short, it’s a tool that predicts possible run-time errors in code without actually executing it. This provides an insight into the quality of the code and catches run-time issues in the early stages of development. Two tools come under the brand name Polyspace. Polyspace Code Prover and Polyspace Bug…

With the advent of OTA (Over The Air) and connected services, it is now, more than ever easier to update the ECU in the field. With this comes the challenge of keeping the ECU running in the event of a download failure or unexpected behavior after installing the new application…

Introduction In AUTOSAR, the NvRAM Manager (NvM ) module handles all the nonvolatile memory of the ECU. SWC’s interacts only with the NvM for reading or writing nonvolatile memory. All the necessary abstraction and protection of the non volatile memory is handle by the NvM. MemIf and its underlying modules, Ea…

ECU initialization in AUTOSAR application is handled by the EcuM module of BSW. After the initialization sequence in boot-loader and C Init Code has been completed, the first API to be called from the “main()” is EcuM_Init(). The startup is divided in to two parts, first part being StartPreOs Sequence…

Visual Studio Code has this awesome feature that lets you open any directory that you are in as a project. This is so seamless that it has become a deal breaker for me with other text editors and IDEs. VS Code excels in functionality but it lacks in the shear…

As per the Autosar_SWS_DCM All received requests must go through these verification's before it is accepted by the DSD. Manufacturer permission and Supplier permission provide the option of adding runnables or callouts for the request Indication and Confirmation. This allows the user to plug in code that get executed before…

The Motorola S Record file generated by the build chain has divided the file into 2 separate blocks with different address spaces. ECU flashing utility needs this file to have a single continuous block with the CRC of the file inserted at the end. How to combine these blocks and…

How do I invest for an expense coming up in a year ? Goal : I have an expense coming up in 1 year’s time. Instead of just keeping aside the money in a regular savings account I want to invest it in a safe instrument. …