Echelon Neuron C Bedienungsanleitung PDF herunterladen (Seite 119)

Neuron C Reference Guide 99

model in the

I/O Model Reference

for a detailed

explanation of this restriction.

muxbus

For muxbus I/O objects, the syntax is:

io_out (

muxbus-io-obj

, [

addr

data

);

addr

An optional address to write (from 0 to 255). Omission of

the address causes the firmware to rewrite the last

address read or written (muxbus is a bi-directional I/O

device).

data

A single byte of data to write.

neurowire

For neurowire I/O objects, the syntax is:

io_out (

neurowire-io-obj

buf

count

);

buf

A (void *) pointer to a buffer.

count

The number of bits to be written (from 1 to 255).

Calling io_out( ) for a neurowire output object is the same as calling io_in( ). In

either case, data is shifted into the buffer from pin IO_10.

parallel

For parallel I/O objects, the syntax is:

io_out (

parallel-io-obj

buf

);

buf

A pointer to the parallel_io_interface structure.

serial

For serial

output objects, the syntax is:

io_out (

serial-output-obj

buf

count

);

buf

A (void *) pointer to a buffer.

count

The number of bytes to be written (from 1 to 255).

spi

For spi I/O objects, the syntax is:

io_out (

spi-io-obj, buf, len

);

buf

A pointer to a buffer of data bytes for the bidirectional

data transfer.

len

An unsigned short number of bytes to transfer.

Calling io_out() for a spi object is the same as calling io_in(). In either case, the

data in the buffer is output and simultaneously replaced by new input data.

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