Interrupt Priority in LPC546xx

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Interrupt Priority in LPC546xx

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Contributor III

Hello ,

I am using the LPC54628 (OM13098).

What is the default value of interrupt priority of ADC, I2C, PINT, CAN, etc.. if not set to any value?


regards,
Hemanth

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NXP TechSupport
NXP TechSupport

Hello Hemanth,

The default value of interrupt priority of ADC, I2C, PINT, CAN is 0, where 0 is the highest priority.

Regards,

Alice

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Contributor III

Hello Alice,

Among the default value of interrupt priority for the peripherals, which peripheral would have higher priority?

i.e. Non of the peripheral are configured for Interrupt priority, then in that case all are of high priority "0" then how is the priority among peripherals?

regards,

Hemanth

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NXP TechSupport
NXP TechSupport

Hello Hemanth,

"which peripheral would have higher priority?", same priority, system will priority run the interrupt

that first Interrupted.

About the detail interrupt, recommend you have a look at <ARM Cortex-M4 Processor Technical Reference Manual>at ARM website: 

https://developer.arm.com/documentation/100166/0001 

Regards,

Alice

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