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McBSP of the TMS320F28069PN

IChung
Intellectual 470 points

Hi, everyone,

I would like to connect a TLV320AIC23 codec to the McBSP of the TMS320F28069PN which has 80 pins, not 100 pins. However, the TMS320F28069PN does not have the  MCLKRA pin and the MFSRA pin among the McBSP pins. In case of the TMS320F28069PZ which has 100 pins, there is no problem, since the TMS320F28069PZ has all pins for the McBSP.

How can I connect a TLV320AIC23 codec which runs in master mode to  the McBSP of the TMS320F28069PN?

  • 0
    TI__Guru 57255 points

    Hello,

    Unfortunately, if you're looking to have the F2806x device work as the slave, you will probably need to use the PZ device.  The PN device is better suited to be a McBSP master.

    As a sidenote, there is a project and application note written that shows how to use the AIC23B codec with the F28335 device.  The F28335 is used as the slave in this project.  Unless you have some existing codebase, I imagine this project could be ported pretty easily to the F28069.  The main change would be that the control interface will need to be ported to the SPI (instead of using the McBSP).

    Interfacing the TMS320F2833x to the AIC23B Stereo Audio Codec:  http://www.ti.com/lit/spraaj2


    Thank you,
    Brett