VolcanoBootloader0 pages

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Volcano Bootloader

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Automotive

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DATASHEET

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Fish

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Programming

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Volcano

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Bootloader

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Major Product Features

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• Enables software updates through

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software downloads through the

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CAN connection

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• Optimized microcontroller

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resource utilization (ROM)

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• High download performance

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• Protection against overwriting of

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Bootloader ROM (optional)

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• Easily integrated with application

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software

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• Configuration according to

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custom ECUs

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Overview of a complete software download system - Volcano Bootloader is the

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software component in each Electronic Control Unit (ECU) that enables receiving

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data over the vehicle's CAN network.

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Use Cases

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The Volcano Bootloader is a standalone program which enables software updates

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of any software module within the ECU - through the CAN (Controller Area

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Network) network. This functionality requires that the ECU has flash memory.

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Typical usage of a Bootloader is

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• Update of existing ECU software during service - no need to dismount

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the ECU from the vehicle in order to update its SW, which dramatically

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reduces cost of aftermarket changes.

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• Reconfiguration or complete programming of ECU during

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manufacturing or service - reduces the need for keeping separate stocks

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of ECUs, both in case of production and aftermarket.

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• Download of software and application data during development -

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speeds up unit and system testing.

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Technical Specifications

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• ISO 14229-1, ISO 15765-2 and

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ISO 15765-3 compliant

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• Security Access (according to

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ISO 14229-1) available

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• Typical memory utilization

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10-12kBROM

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• Also as KWP2000 compliant

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deliverable

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Bootloader Strategy

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Typically, the Bootloader is divided in two parts :

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1. Primary Bootloader (PBL)

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2. Secondary Bootloader (SBL)

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The PBL is permanently placed in a protected boot sector and will execute directly

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after reset. The PBL acts as a communication engine to download the SBL into the

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internal RAM of the ECU and then activate it. The SBL adds functions for erase

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and programming of flash memory and EEPROM; it also handles the actual down-

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load of new or updated software. This strategy allows a minimum ROM utilization

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by the PBL.

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www.mentor.com/automotive

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—Menlor

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Graphics

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