[SystemSafety] Development of code for ASICs under IEC 61508
Martin Lloyd
martin.farside at btinternet.com
Tue Jul 2 18:31:37 CEST 2013
Dear Colleagues
I have a question about code developed for ASICs under IEC 61508:2010.
IEC 61508-2 specifies that an ASIC development lifecycle shall be used
and notes the similarity between the software and ASIC life
cycles(7.1.3.1 Note 2). However, there is a concern that the standard's
requirements for the ASIC life cycle appear to be less than those for
software. For example, IEC 61508-3 specifies requirements for tools,
including programming languages in para 7.4.4. On the other hand, IEC
61508-2 is less forthcoming on the issue of tools. It cross refers to
para 7.4.4.2 of IEC 61508-3 in 7.8 the section on modification
(7.8.2.3), and also mentions in Table B6 (normative) /Use of tools that
are proven in use (see 7.4.10) or validated; general computer aided
development for all phases of the //safety lifecycle./
Thus, should one interpret the standard along the lines that when one
needs to certify an ASIC against IEC 61508-2, then it must also be the
case that the ASIC codecomplies with IEC 61508-3 as well?
--
Kind regards
Martin Lloyd
===========================
Dr M H Lloyd CEng FIET
martin.farside at btinternet.com
Tel: +44(0)118 941 2728
Mobile: +44(0)786 697 6840
www.farsideresearch.co.uk
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