Echelon Neuron C - Manual (Page 116)

96 Functions
Example
IO_0 input bit d0;
boolean value;
...
void f(void)
{
value = io_in(d0);
}
io_in_request( ) Built-in Function
The io_in_request( ) built-in function is used with a dualslope I/O object to start
the dualslope A/D conversion process.
Syntax
void io_in_request ( input-io-object-name , control-value );
input-io-object-name Specifies the I/O object name, which corresponds to
io-object-name in the I/O declaration. This built-in
function is used only for dualslope and sci I/O models.
control-value An unsigned long value used to control the length of the
first integration period. See the descriptions of the
dualslope and sci I/O objects in the I/O Model Reference
for more information.
Example 1
IO_4 input dualslope ds;
stimer repeating t;
when (online)
{
t = 5;
// Do a conversion every 5 sec
}
when (timer_expires(t))
{
io_in_request(ds, 40000);
}
The io_in_request( ) is used with a sci I/O object to start the serial transfer.
Example 2
#pragma specify_io_clock "10 MHz"
IO_8 sci baud(SCI_2400) iosci;
unsigned short buf[20];
when (...)
{
io_in_request(iosci, buf, 20);
}