Echelon Neuron C Manuel d'utilisateur télécharger pdf (Page 122)

102 Functions

infrared

ontime

period

pulsecount

totalcount

clock-value

Specifies an optional clock value, in the range 0 to 7, or a

variable name for the clock. This value permanently

overrides a clock value specified in the object’s

declaration. The clock value option can only be specified

for the infrared, ontime, and period objects.

Example

IO_5 input ontime pcount1;

IO_6 input ontime pcount2;

unsigned long variable1;

when (io_update_occurs(pcount_1))

{

variable1 = input_value;

// select next I/O object

io_select(pcount_2);

}

io_set_baud( ) Built-in Function

The io_set_baud( ) built-in function allows an application to optionally change the

baud rate for an SCI device. The SCI device optionally has an initial bit rate

setting from its declaration.

See also Chapter

Compiler Directives

, on page 19, for information about the

specify_io_clock compiler directive.

Syntax

void io_set_baud (

io-object-name

baud-rate

);

io-object-name

The I/O object name that corresponds to

io-object-name

the I/O declaration. This built-in function is used only for

sci I/O objects.

baud-rate

The serial bit rate through use of the enumeration values

found in the <io_types.h> include file. These enumeration

values are SCI_300, SCI_600, SCI_1200, SCI_2400,

SCI_4800, SCI_9600, SCI_19200, SCI_38400, SCI_57600,

and SCI_115200. The enumeration values select serial bit

rates of 300, 600, 1200, 2400, 4800, 9600, 19200, 38400,

57600, and 115200, respectively.

Example

IO_8 sci baud(SCI_2400) iosci;

when (...)

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Echelon Neuron C Manuel d'utilisateur Page 122

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