Echelon Neuron C - Manual (Page 120)

100 Functions
touch
For touch I/O objects, the syntax is:
io_out ( touch-io-obj , buf , count );
buf A (void *) pointer to a buffer.
count The number of bits to be written (from 1 to 255).
Example
boolean value;
IO_0 output bit d0;
void f(void)
{
io_out(d0,
value);
}
io_out_request( ) Built-in Function
The io_out_request( ) built-in function is used with the parallel I/O object and the
sci I/O object.
The io_out_request( ) sets up the system for an io_out( ) on the specified parallel
I/O object. When the system is ready, the io_out_ready event becomes TRUE and
the io_out( ) function can be used to write data to the parallel port. See Chapter
2, Focusing on a Single Device, of the Neuron C Programmer's Guide for more
information.
Syntax
void io_out_request ( io-object-name );
io-object-name Specifies the I/O object name, which corresponds to
io-object-name in the I/O object’s declaration.
Example 1
when (...)
{
io_out_request(io_bus);
}
The io_out_request( ) is used with a sci I/O object to start the serial transfer.
Example 2
IO_8 sci baud(SCI_2400) iosci;
unsigned short buf[20];
when (...)
{
io_out_request(iosci, buf, 20);
}