Gx6196GetPioOutputEnable

Purpose

Gets the PIO channels output enable states.

Syntax

Gx6196GetPioOutputEnable (nHandle, pucOutputEnable, pnStatus)

Parameters

Name
Type
Comments
nHandle
SHORT
Handle to a GX6196 board.
pucOutputEnable
PBYTE
Returned 8 bits (0-255), each corresponds to a PIO channel. A bit that is set to 1 indicates that output is enabled. A bit that is set to 0 indicates that the output is disabled. Low bit (0x1) indicates that channel 0 is enabled and high bit 0x80 indicates that channel 7 output is enabled.
pnStatus
PSHORT
Returned status: 0 on success, negative number on failure.

Comments

Each of the 8 PIO channels has an output enable setting. A PIO channel will only be able to drive a voltage level when the channel’s output enable is set.

Example

The following example gets all PIO output states:

 

BYTE ucOutputEnable;

 

Gx6196GetPioOutputEnable (nHandle, &ucOutputEnable, &nStatus);

if (ucOutputEnable & 0x2)

    printf(“Channel 1 output is enabled”);

 

See Also

Gx6196SetPioOutputEnable, Gx6196WritePio, Gx6196ReadPio, GxSWGetErrorString