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TM4C1230H6PM: SSI Chip Select Confusion

Divyesh Tilva
Prodigy 40 points
Part Number: TM4C1230H6PM

i have used SSI1 module over Port D .

SSICLK-PD0 (Pin no 61)

SSIRX -PD2 (Pin no 63)

SSITX-PD3 (Pin no 64)

Chip select - PD1 (Pin no 62)

I am confused that we have to compulsory configure CS pin as SSI1Fss or we can configure CS pin as GPIO OUTPUT pin and drive it manually?

  • 0
    TI__Guru*** 128035 points

    Hello Divyesh,

    Divyesh Tilva said:
    I am confused that we have to compulsory configure CS pin as SSI1Fss or we can configure CS pin as GPIO OUTPUT pin and drive it manually?

    It's optional. If you want to use it, the SSI peripheral will drive it automatically.

    If not, you can use a GPIO and drive it manually.

    Most use a GPIO and only configure TX/RX/CLK.

    Best Regards,
    Ralph