TMS570LS0914: Time.h default libray MISRA 21.10 compliance

Bernat

Part Number: TMS570LS0914

Tool/software:

Good morning,

Following the MISRA rules, rule 21.10 mentions that time.h shouldn't be used, but this can be avoided if the actual implementation of time avoids the use of dynamical memory allocation, which was the original reason for MISRA complaint.

I am looking the documentation, also of the compiler, but I can't find anywhere if the default time library implementation from TI it's complaint or not.

Please, can anyone guide me?

Best regards

9 months ago

0 jagadish gundavarapu 9 months ago

TI__Guru 70241 points

Hi Bernat,

I don't have any time.h file without dynamic memory allocation. And I don't know exactly for what purpose you are using time.h but most of the customers will always prefer hardware timer (RTI) in these Hercules controllers. Please refer below thread once:

(+) Timer implementation on launchxl2-rm46 - Arm-based microcontrollers forum - Arm-based microcontrollers - TI E2E support forums

(+) Benchmarks on TMS570 - Arm-based microcontrollers - INTERNAL forum - Arm-based microcontrollers - INTERNAL - TI E2E support forums

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Thanks & regards,
Jagadish.

0 Bernat 9 months ago in reply to jagadish gundavarapu

Prodigy 80 points

Hi Jagadish,

The reason is in order to use the mktime() default function,

(We also use the tm structure although that could be copied)

0 jagadish gundavarapu 9 months ago in reply to Bernat

TI__Guru 70241 points

Bernat,

I too not aware of how to avoid dynamic memory usage in time.h

My suggestion would be, as you are using only mktime function, why don't you try to include only its definition in your project. Instead of including entire time library this might solve the MISRA warning.

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Thanks & regards,
Jagadish.