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What's the interrupt selection number for McBSP?

Kei Mochida
Prodigy 20 points
Other Parts Discussed in Thread: TMS320C6474

Hello,

I just get started to use C6474 DSP.

I'm trying to communicate to audio ADC/DAC using McBSP.  At configuration tool for DSP/BIOS, I need to configure McBSP receive or transmit interrupt selection number.

In the "TMS320C6474 DSP Chip Interrupt Controller (CIC) User's Guide", McBSP event numbers are 10 through 17,

but in the "TMS320C64x+ DSP Megamodule Reference Guide", 11 through 14 are reserved or used for system events.

Interrupt selection numbers 10 through 17 didn't work.

Which document should I refer to obtain the correct interrupt number?

 

Kei

  • 0
    TI__Guru* 84110 points

    The C6474 device's CIC Chip Interrupt Controller and the MegaModule's INTC Interrupt Controller are separate modules which must both be configured for many interrupt sources.

    For example, in the datasheet, Table 7-15 shows that McBSP0's RINT0 interrupt line goes to interrupt input 10 on CIC0/1/2. Table 7-13 shows that the CIC events go to the INTC inputs such as 80-93.

    Regards,
    RandyP

     

    If you need more help, please reply back. If this answers the question, please click  Verify Answer  , below.

  • 0 in reply to RandyP
    Prodigy 20 points

    I understood.

    I configured both interrupt controllers and they work well.

    Thank you for the answer!

     

    Kei