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@CHIP-RTOS C Library V2.00 - Hardware API


pfe_get_pio_state

Get programmable PIO pins state.

void pfe_get_pio_state ( unsigned int far * wPio,
                         unsigned int far * wInp,
                         unsigned int far * wOut );

Parameters

wPio

Output parameter:
    Bit 0 = 1: PIO0 is PIO
    Bit 1 = 1: PIO1 is PIO
    :
    :
    Bit 13 = 1: PIO13 is PIO
    Bit 14..15 not used (for future extensions)

wInp

Output parameter:
    Bit 0 = 1: PIO0 is input
    Bit 1 = 1: PIO1 is input
    :
    :
    Bit 13 = 1: PIO13 is input
    Bit 14..15 not used (for future extensions)

wOut

Output parameter:
    Bit 0 = 1: PIO0 is output
    Bit 1 = 1: PIO1 is output
    :
    :
    Bit 13 = 1: PIO13 is output
    Bit 14..15 not used (for future extensions)

Return Value

-- none --.

Comments

The value output to wPio has bits set to one to indicate PIO is configured as an I/O pin.

The value output to wInp has bits set to one to indicate PIO which are configured as inputs.

The value output to wOut has bits set to one to indicate PIO which are configured as inputs.

See Also

RTOS API

This library function invokes a RTOS software interrupt. Refer to this RTOS API function's documentation for more details.


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