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TMS570LS0914: SPI2nCS[1:0]

Gilles Devaud
Prodigy 10 points
Part Number: TMS570LS0914
Other Parts Discussed in Thread: TMS570LS0432, HALCOGEN,

Tool/software:

Dear support,

I am using the TMS570ls0914PZ. Previously, it was TMS570ls0432 which has almost the same pin mapping. I have several chip on SPI2. The one linked to SPI2nCS[0] is working well. I expect to have the SPI2nCS[1] on the pin 12 but I am not sure. In the datasheet and Halcogen, SPI2nCS[1] t is mentioned but I don't find where is the pin and where to configure the pin to use it as SPI2nCS[1] .

Could you please help me to use SPI2nCS[1]?

Thanks in advance

  • 0
    TI__Guru 70131 points

    Hi Gilles,

    I could only see one chip select for SPI2; you can see below screenshot from datasheet of TMS570LS0914.

    And also, for pin 12 there is no SPI functionality. This pin has only GIOA[6], INT[6], N2HET2[4] and EPWM1B functionalities.

    So, i don't think we can implement SPI2nCS[1] in this device.

    I think HALCoGen have a mistake, they added CS[1] here for SPI2 however datasheet never mentioned or never gave pin for CS[1], so there should not be CS[1] for SPI2

    --
    Thanks & regards,
    Jagadish.

  • 0 in reply to jagadish gundavarapu
    Prodigy 10 points

    Hi Jagadish,

    Thanks a lot for your answer. 

    There is just a mention here in the datasheet where it is written SPI2nCS[1:0]:

    I will use GIOA_6 to do the job of CS.

    Best regards

    Gilles