Embedded Solutions CompactPCI F301-3U Instrukcja Użytkownika Pobierz pdf (Strona 6)

...let the train take the strain ...look...look away...relax...think...

Typical Functions in FPGA

MEN provides on-board FPGAs for user-

deﬁned I/O on a wide variety of computing

platforms. A part of the FPGA functions is

necessary for the general operability of the

board. Other functions extend the board‘s

I/O capabilities. MEN offers a continuously

growing pool of IP cores, such as:

 Different graphics controllers, touch

 Fieldbus interfaces like CAN, MVB

 Various additional UARTs

Leaving behind traffic jams...

... FPGAs Perfectly Meet

EN 50155 Requirements

One of the most critical requirements is a

guaranteed operational temperature between

-40 and +85°C. Many parts however can only

be screened because the component manu-

facturer often does not guarantee the Tx

temperature range according to EN 50155.

Since the functionality of many of these com-

ponents can now be programmed in FPGA,

there is only one part which must fulﬁll the

railway requirements and this is the FPGA

itself. FPGAs are speciﬁed with -40 to +85°C

operation temperature. As required by EN

50155 the FPGA is used only within the

speciﬁcation range of the data sheet (which

forbids screening). It also conforms to EN,

CECC or IEC standards, is manufactured

according to ISO 9000 and a second source

is available.

Another important aspect is long-term avail-

ability. Many component manufacturers don‘t

make guarantees for long-term availability.

This makes it difﬁcult or impossible for the

board manufacturer to support his product

on a long-term basis.

The advantage of FPGAs and their nearly un-

limited availability lies in the fact that – even

if the device migrates to the next generation

– the code remains unchanged. According to

EN 50155 the only rule says that customized

parts like FPGAs must be documented to

allow reproduction and that the documen-

tation and the source code must be handed

out to the customer.

Flexible and Future-Safe with FPGA Technology

FPGAs – Field Programmable Gate Arrays – allow perfect customization of the hardware at an attractive price even in

low quantites. With an FPGA device on a computer board it is possible to program parts of the I/O or even a complete

microcontroller needed for dedicated control tasks of a speciﬁc application without touching the board layout. FPGA

technology accelerates time-to-market and reduces project cost. The advantages of using FPGAs become even more

exciting in railway applications because...

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