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Fkasa.1
Associate II
April 15, 2022
Solved

How many interrupt by an exception having higher priority can be executed?

  • April 15, 2022
  • 2 replies
  • 903 views

The execution of an interrupt handler can be preempted by an exception having higher priority.

How many interrupt by an exception having higher priority can be executed?

In the link below, two interrupts are generated. Is this number infinite?

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Best answer by TDK

There are up to 16 different preemption priorities available, so effectively 16.

There are additional higher priority levels beyond this (e.g. hard fault), but generally are not in use.

2 replies

TDK
TDKBest answer
April 15, 2022

There are up to 16 different preemption priorities available, so effectively 16.

There are additional higher priority levels beyond this (e.g. hard fault), but generally are not in use.

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Fkasa.1
Fkasa.1Author
Associate II
April 18, 2022

Thank you for your reply.

We consider  interrupt can be preempted 16 times.