SHIFTOUT MSB/LSBFIRST clarification

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  1. - 26th May 2021, 20:13 #2
    peterdeco1's Avatar
    peterdeco1
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    Default Re: SHIFTOUT MSB/LSBFIRST clarification

    I haven't done this in a long time but here is a snippet of code I used to send by SPI to a device:

    Low PORTA.3 : Pause 10 'CHIP SELECT
    ShiftOut PORTC.5,PORTC.3,0,[9254\16] 'playconfig0
    ShiftOut PORTC.5,PORTC.3,0,[114\8] '1st play byte
    High PORTA.3 : Pause 10 'deselect - end of word

    The 0 after portc.3 means send code LSB. A 1 would send it MSB.
    Last edited by peterdeco1; - 26th May 2021 at 20:25.
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