Microchip serves ISO 26262 functional safety packages for MCUs

To simplify the design of ASIL B and ASIL C safety applications using dsPIC, PIC18 and AVR microcontrollers, Microchip offers certified functional safety packages.

The certified functional safety packages enable automotive engineers to develop products as per the ISO 26262 functional safety standard. Microchip is releasing ISO 26262 functional safety packages for dsPIC33C digital signal controllers (DSCs), PIC18 and AVR microcontrollers (MCUs) to accelerate the development of safety-critical designs targeting ASIL B and ASIL C safety level and certification efforts.

The functional safety ecosystem for dsPIC33C DSCs includes AEC Q100 Grade 0-qualified functional safety ready dsPIC33C DSCs with dedicated hardware safety features. There are also SGS TÜV Saar-certified ASIL B-ready failure modes, an effects and diagnostic analysis (FMEDA) report and functional safety manual (FSM).

Designers can also access TÜV Rheinland-certified functional safety diagnostic libraries for designs targeting up to ASIL C and a functional safety reference application, showing the steps required to develop compliant designs, and the collateral that must be generated for (ASIL B or ASIL C) compliance

There are also various functional safety analysis reports and certification reports to assist compliance and certification.

For PIC18 and AVR MCUs, the functional safety ecosystem includes AEC Q100 Grade 1-qualified functional safety ready PIC18-Q84 MCUs with CAN FD and AVR DA MCUs with LIN interfaces and both with hardware support for capacitive touch sensors.

There is also the SGS TÜV Saar-certified ASIL B ready FMEDA report and FSM. In addition to functional safety diagnostic libraries, there are also ASIL B-ready certificates and certification reports.

Whether an engineer is new to ISO 26262 functional safety or a seasoned expert, Microchip says it is able to help them meet functional safety requirements and certify designs while minimising cost, risk and development time.

The functional safety packages, together with development tools (complete with the safety documents) allow engineers to develop compliant systems.

Microchip is offering three ISO 26262 functional safety packages to help customers with different levels of expertise and in different stages of their evaluation and design cycles.

The first is the functional safety basic package which offers basic resources like the ASIL B-ready certified FMEDA and safety manual to begin the evaluation of target functional safety levels and the design of safety-critical automotive applications.

Next is the functional safety starter package which offers ASIL B-ready certified FMEDA and safety manual, a reference application and ASIL C-compliant diagnostic libraries that help designers understand the ISO 26262-compliant development process and the reports that must be generated for compliance.

Thirdly, the functional safety full package is for beginners and seasoned experts to simplify the design and certification of safety-critical automotive applications. In addition to the offerings of the starter package, it includes certified diagnostic libraries with source code and the associated safety analysis reports for designs targeting up to ASIL C.

In addition to the functional safety packages, Microchip offers a TÜV SÜD-certified design tool package for its MPLAB development tools ecosystem. This includes a TÜV SÜD-certified MPLAB XC functional safety compiler with the TÜV SÜD certificate, a functional safety manual for the compiler along with safety plans and complete tools classification and qualification reports for the compiler, MPLAB X integrated development environment (IDE), MPLAB Code Coverage and all MPLAB development ecosystem programs. Microchip also offers functional safety-ready CAN FD and LIN transceivers and other companion devices, including voltage supervisor devices, which can be used with the functional safety ready DSCs and MCUs in a range of automotive applications.

The ISO 26262 functional safety ready dsPIC33C DSCs, and PIC18 and AVR MCUs are supported by the TÜV SÜD-certified MPLAB XC16 and MPLAB XC8 functional safety compilers (SW006022-FS and SW006021-FS), the MPLAB Code Coverage tool (SW006026-COV),  MPLAB X IDE, MPLAB development ecosystem debugger/programmers and the safety documentation package to make the tool qualification effort easier.

http://www.microchip.com

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Vector releases tool to test ADAS sensor functions

Version 6 of DYNA4, the tool for virtual test driving has been released by Vector. DYNA4 R6 expands the possibilities for testing ADAS functions with improvements in the environment sensor models and the visualisation of scenarios. There are also new functions of the simulation standards ASAM OSI for sensor data communication and the road network ASAM OpenDrive.

The release’s DYNA4, the simulation environment for virtual test driving, has enhanced 3D visualisation and camera image generation to address real-time, close-to-reality modelling of the environment. The simulation facilitates the consistent use of physical lighting parameters in driving scenarios. This enables developers to test camera-based control systems in challenging lighting situations such as backlighting or strongly varying light intensities. Camera images are generated with a high dynamic range (HDR) and can then be arranged as Bayer matrix. DYNA4 additionally provides ASAM OSI ground truth information. The object information detected through image processing can be directly validated based on this information. The same applies to other sensor technologies, such as lidar, ultrasound or radar.

DYNA4 is based on simulation standards and includes a variety of interfaces to maximise the possibilities when using the virtual test drives in an existing tool infrastructure. Based on the use of the ASAM OSI standard in DYNA4, object-based sensors can transmit information as OSI messages. Other applications receive these data to process them. For example, CANoe, where the data is used for remaining bus simulation in HIL mode and displayed in the scene window. ASAM OSI considerably reduces the effort required to set up and maintain the interfaces between the simulation and the sensors or engine control units (ECU) functions

Through optimisation of the model structure, version 6 is more user-friendly in the consistent use from MIL, SIL to HIL, says Vector. The company has also worked to make it easier to integrate controller components into the virtual test vehicle. Different variants and development versions of a controller component can be exchanged with each other while the model interface remains constant, without the need for any further model changes. Furthermore, flexible access to signal and control variables in the model has been simplified allowing the user to manipulate them dynamically during a test run.

http://www.vector.com

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CC stepper motor driver IC does not need external sense resistor

Stepping motor driver ICs from Toshiba Electronics Europe now include the B67S539FTG. Housed in a 5.0 x 5.0mm QFN32 package, it operates without an external sense resistor and is integrated in the Stepper 17 Click board from Mikroe.

The TB67S539FTG is intended for a range of constant current (CC) control stepper motor applications including those found in office automation, commercial and industrial equipment. It can also be used in surveillance cameras and projectors.

The IC is based on Toshiba’s latest BiCD process and can drive bipolar stepping motors up to 40V and up to 2.0A. The integrated H-bridge circuit for motor control uses an Nch/Nch configuration and has a built-in charge pump circuit for output stage control.

The current detector is integrated within the QFN32 package, removing the need for an external current sense resistor. A capacitor for the charge pump is also integrated. The level of integration reduces the required PCB space significantly, says Toshiba.

The output stage (covering the upper and lower transistor) has an RDS(on) of just 0.8 Ohm. This ensures efficient operation and reduces heat generation during use. In sleep mode, the device draws a maximum current of 1.0 microA.

The IC is in mass production and shipping now. The compact Stepper 17 Click add-on board, created in partnership with Mikroe, is supported by a mikroSDK-compliant library.

Toshiba Electronics Europe is the European electronic components business of Toshiba Electronic Devices and Storage. TEE offers European consumers and businesses a variety of innovative hard disk drive (HDD) products and semiconductors for automotive, industrial, IoT, motion control, telecomms, networking, consumer and white goods applications. The company’s portfolio encompasses power semiconductors and other discrete devices ranging from diodes to logic ICs, optical semiconductors as well as microcontrollers and application specific standard products (ASSPs).

TEE has headquarters in Düsseldorf, Germany, with branch offices in France, Italy, Spain, Sweden and the United Kingdom providing marketing, sales and logistics services.

http://www.toshiba.semicon-storage.com

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V2X hardware security module is based on tamper-proof microcontroller

Trends such as electrification, autonomous driving and connected cars are leading to an increase in the number of communication interfaces in vehicles – wired or wireless. This presents new challenges because the numerous communication channels create new attack surfaces and increase the vulnerability of the systems, explains Infineon Technologies.

To provide the highest level of protection, it has launched the SLS37 V2X hardware security module (HSM) for vehicle to everything (V2X) communication. The SLS37 V2X HSM is based on a secured, tamper-resistant microcontroller tailored to the security needs in V2X applications within telematics control units. It protects the integrity and authenticity of messages, as well as the privacy of the sender. The HSM received the Common Criteria EAL4+ certification, which is expected to become mandatory in European V2X systems.

In a V2X host environment, the discrete HSM helps system integrators to solve the conflicting requirements of high performance and high security. The scope of the SLS37 V2X HSM is focused on high security tasks such as key storage and the generation of signatures for outgoing messages. This removes the burden of a Security Certification from the host processor, which runs the Linux OS (operating system), from the application software as well as the verification of incoming messages.

In addition to automotive telematics control units, the SLS37 V2X HSM can be used in roadside units or other infrastructure for V2X communication. It supports all major vehicle credential management systems including SCMS, CCMS and ESPS. It accepts a wide supply voltage range from 1.6 to 3.6V, comes with a high speed serial peripheral interface (SPI) with up to 10MHz and is qualified for harsh automotive applications according to AEC-Q100.

Infineon offers complementary host software package for immediate use. The personalisation concept leverages chip-unique and customer-individual certificates and keys to enable vendor verification, pairing and transport protection as well as secured-in-field-updates. As a discrete security controller, SLS37 also provides scalability for platform development covering different regions with different security-requirements, adds Infineon.

The SLS37 V2X HSM can be ordered now. .

http://www.infineon.com/SLS37-V2X

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