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VolcanoBootloader

VolcanoBootloader
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Volcano Bootloader Major Product Features • Enables software updates through software downloads through the • Optimized microcontroller • High download performance • Protection against overwriting of • Easily integrated with application custom ECUs Overview of a complete software download system - Volcano Bootloader is the software component in each Electronic Control Unit (ECU) that enables receiving data over the vehicle's CAN network. The Volcano Bootloader is a standalone program which enables software updates of any software module within the ECU - through the CAN (Controller Area Network) network. This functionality requires that the ECU has flash memory. Typical usage of a Bootloader is • Update of existing ECU software during service - no need to dismount the ECU from the vehicle in order to update its SW, which dramatically reduces cost of aftermarket changes. • Reconfiguration or complete programming of ECU during manufacturing or service - reduces the need for keeping separate stocks of ECUs, both in case of production and aftermarket. • Download of software and application data during development - speeds up unit and system testing. Technical Specifications • Security Access (according to • Typical memory utilization Bootloader Strategy Typically, the Bootloader is divided in two parts : The PBL is permanently placed in a protected boot sector and will execute directly after reset. The PBL acts as a communication engine to download the SBL into the internal RAM of the ECU and then activate it. The SBL adds functions for erase and programming of flash memory and EEPROM; it also handles the actual down- load of new or updated software. This strategy allows a minimum ROM utilization

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Ease of integration comes from the Volcano Bootloader's standalone executable program. Mapping the interrupt vector table and reserving the flash segment for the Volcano Bootloader is all that is required. Protocols from complete car OEM-specific to standardized protocols using ISO 15765-2 transport layer and ISO 14229 diagnostic services is available. A KWP2000 compliant bootloader is also available. List of currently supported MCUs. Mentor Graphics provides support for other MCUs on customer request. The Volcano Bootloader is available in many microcontroller types from different vendors...

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