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priority inheritance

John Fisher
Expert 1030 points

I have seen no mention of priority inheritance in DSP/BIOS documentation. I am using TMS320C55x DSP/BIOS 5.x.

Can I take this to mean that it is not supported?

Also, can I take this to mean that the DSP/BIOS authors think that priority inheritance is not a good feature for an RTOS?

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    TI__Mastermind 26780 points

    John,

    Please see this application note that discusses avoidance of priority inversion for DSP/BIOS applications: http://www.ti.com/lit/an/spraa25/spraa25.pdf

    SYS/BIOS (the follow on to DSP/BIOS) added some support for priority inheritance with special gates.  Please see section "4.3.3 Priority Inversion" in the SYS/BIOS User’s Guide: http://www.ti.com/lit/ug/spruex3l/spruex3l.pdf

    Scott