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AM2634-Q1: SPI initialization

Srujana Reddy P
Prodigy 75 points
Part Number: AM2634-Q1


Tool/software:

Hi,

Can anyone help in providing the information about the pin configuration.

I am using SPI0 for my application where after SPI initialization the SPI D0 pin should be converted as GPIO as LOW signal for 2.5msec and after 2.5msec the pins should be configured again as SPIO.

We are doing above for giving wake up for bq769600 bridge device.

Regards

Srujana

  • 0
    TI__Guru 51090 points

    Hi Srujana,

    Srujana Reddy P said:
    I am using SPI0 for my application where after SPI initialization the SPI D0 pin should be converted as GPIO as LOW signal for 2.5msec and after 2.5msec the pins should be configured again as SPIO.

    If I understand this correctly you are trying to change the pinmux behaviour at run time.

    You can go through the pinmux register level to configure it in your. While these pinmux register have an MMR level locking, you will need unlock the modify the behaviour and then lock it again.

  • 0 in reply to Nilabh Anand
    TI__Guru 51090 points

    The sequence needs to be repeated every time you need to change the pinmux configuration.