TPS65381-Q1: TPS65381-Q1 Driver qualification for ISO26262

Jairam Ramakrishnan

Part Number: TPS65381-Q1
Other Parts Discussed in Thread: TMS570LS3137,

TPS65381-Q1Driver qualification issues. User's Guide SPNU636– Hercules Software Diagnostic Library CSP Without LDRA specifies in Section 5 - Functional Blocks of Software Diagnostic Library TAU -

Test select (Software Diagnostic Library or TPS Driver—currently TPS Driver is not supported). If not supported, how shall I proceed with TPS Driver qualification for ISO26262 certification?

uC used is TMS570LS3137.

7 months ago

Florian Gabelle 7 months ago

TI__Expert 4421 points

Hello Jairam,

Please review the following information:

SAFETI_DIAG_LIB is the SafeTI Hercules diagnostic library that features device driver support for TPS65381-Q1 PMIC for the Hercules MCU.

SAFETI_DIAG_LIB related info for TPS65381-Q1:
https://www.ti.com/tool/SAFETI_DIAG_LIB
SafeTI Diagnostic Library Safety Manual:
SafeTI Diagnostic Library Software Safety Manual for Hercules Processors (Rev. A)

Also, there are two safety module reference designs done by two external companies:

HiTex ( the safety kit with Hercules + TPS65381x-Q1 : see snapshot below )
- https://www.hitex.com/tools-components/software-components/selftest-libraries-safety-libs/safeti-diagnostic-library
- https://www.hitex.com/microcontroller-support/arm-cortex/ti-hercules-safety-mcus
TTTech Generic Safety Controller board
- The Generic Safety Controller Board comes with safety certifiable firmware, run-time system, and drivers for I/O and network interfaces.
- https://www.tttech.com/press/new-pre-certified-generic-safety-controller-board-from-tttech
- https://www.ti.com/lit/pdf/spry216
- It includes safety SW drivers as well

Best regards,

Florian

Jairam Ramakrishnan 7 months ago in reply to Florian Gabelle

Prodigy 20 points

HI FLorian,

Thanks for the reply. We have already gone through the SAFETI_DIAG_LIB and the SafeTI Diagnostic Library Safety Manual.

The user manual specifies clearly that TPS Driver is not supported. Without using the 3rd party tools or applications (except for LDRAunit thats requirement for the TAU), is it possible to do the TPS driver qualification or not? If yes, how shall we do it?

Best Regards,

Jairam

Florian Gabelle 7 months ago in reply to Jairam Ramakrishnan

TI__Expert 4421 points

Hello Jairam,

I understand this discussion has been continued by email.

Best regards,

Florian

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TPS65381-Q1: TPS65381-Q1 Driver qualification for ISO26262