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Yali Mobilities
Associate III
Feb 24, 2021 12:27 PM UTC
Solved

how to select and unselect DSPI slave select lines

while using the DSPI example in spc58ec_disp , i couldn't see that the "spi_lld_select" and "spi_lld_unselect " functions usage to control the slave pin. and it didn't had any effect while i used the functions. how could i use the functions to control the chip select line.

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    zambrano.luigi
    zambrano.luigiBest answer
    ST Employee
    Feb 25, 2021 7:12 AM UTC

    Hi,

    if the DSPI is configured in Slave mode, its Chip Select (and Clock) must be driven by a DSPI master.

    Regards,

    Luigi

    1 reply

    zambrano.luigi
    zambrano.luigiBest answer
    ST Employee
    Feb 25, 2021 7:12 AM UTC

    Hi,

    if the DSPI is configured in Slave mode, its Chip Select (and Clock) must be driven by a DSPI master.

    Regards,

    Luigi