LPC55S69 : ARM errata 838869

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LPC55S69 : ARM errata 838869

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Senior Contributor I

Hello !

I can see interrupt handler in SDk still have errata fix like this :

/* Add for ARM errata 838869, affects Cortex-M4, Cortex-M4F Store immediate overlapping
exception return operation might vector to incorrect interrupt */
#if defined __CORTEX_M && (__CORTEX_M == 4U)
__DSB();
#endif

Does it applicable to this type of MCU or it is Cortex4 only ?

As usually it is under ifdef flag, sometimes without.

Regards,

Eugene

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3 Replies

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NXP TechSupport
NXP TechSupport

hi Eugene Hiihtaja

Please let me know which SDK demo and which file you are referring to. I will check.

Thanks,

Jun Zhang

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Senior Contributor I

Hi !

In latest LPC55S69 SDK:

pastedImage_1.png

does drivers are common for a lot of MCU/Platforms ?

Regards,

Eugene

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NXP TechSupport
NXP TechSupport

>>does drivers are common for a lot of MCU/Platforms ?

Yes, correct.

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