Rabbit OP7100 User Manual download pdf (Page 65)

User’s Manual 59

4.5.2 Digital I/O

This functions is used to configure the high-current outputs as either a sinking or a sourcing type output.

Note that

brdInit must be executed before calling this function.

PARAMETERS

outputMode is an 8-bit parameter where each bit corresponds to a high-current output:

Bit 7 = OUT7

Bit 6 = OUT6

Bit 5 = OUT5

Bit 4 = OUT4

Bit 3 = OUT3

Bit 2 = OUT2

Bit 1 = OUT1

Bit 0 = OUT0

To set the outputs, set the corresponding bit to one of the following states:

0 = Sinking type circuit

1 = Sourcing type circuit

EXAMPLE

digOutConfig(0x81);

// OUT0 and OUT7 are sourcing, OUT1–OUNT6 are sinking

SEE ALSO

brdInit, digIn, digOut, triStateConfig, digOutTriState

Sets the state of a digital output (OUT0–OUT7).

The output channel is set to the state that is specified. If the output is configured as sinking, set to 0 for

the driver to be sinking, or set to 1 for the driver to be OFF (high-impedance state). If the output is con-

figured as sourcing, set to 0 for the driver to be OFF (high-impedance state), or set to 1 for the driver to

be sourcing.

Remember to call brdInit and digOutConfig before executing this function.

A runtime error will occur for the following conditions:

1. channel or state out of range.

2. brdInit or digOutConfig was not executed before executing digOut.

3. Your tried to use a channel configured as a tri-state output.

PARAMETERS

channel is the output channel number (0–7).

state is the output value (0 or 1).

SEE ALSO

brdInit, digOutConfig, triStateConfig, digOutTriState

void digOutConfig(char outputMode);

void digOut(int channel, int state);

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