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Default MQX_HARDWARE_INTERRUPT_LEVEL_MAX for K70?

Question asked by Matt Osborne on Oct 14, 2015
Latest reply on Oct 15, 2015 by soledad

Hello,

 

we're using MQX 4.1 with the K70 and have taken a look at the MQX User Guide section 3.9.3.4.

 

Out of the box BSP_DEFAULT_MQX_HARDWARE_INTERRUPT_LEVEL_MAX = 2.

 

We were wondering why this value was chosen as a default?

 

In general we assume that all our tasks can be interrupted by an IRQ.

 

For the most part we let MQX manage our interrupts; but we do have the odd occasion to install a kernel interrupt when necessary.

 

We're thinking of changing BSP_DEFAULT_MQX_HARDWARE_INTERRUPT_LEVEL_MAX = 7; we don't have any tasks with priorities less than 2.

 

Are there any consequences to this besides ensuring that our tasks can always be interrupted?

 

Thanks for the help,

 

Matt

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