Init(RS232,....)

Description

Initializes RS232 interface for data transfer and monitoring.

Syntax

Init(RS232, speed, word_length, stop_bits, parity);

Parameters

Variable	Input

Variable	Input
`speed`	This is serial port data transfer speed in bit/s. Speed (baud rate) can be one of the following: 600, 1200, 2400, 4800, 9600, 14400, 19200, 28800, 38400, 56000, 57600, 115200, 128000 or 256000
`word_length`	This is data size in bits. For example: WORDLENGTH_7 - 7 bit long data packet. Can be: WORDLENGTH_7, WORDLENGTH_8 or WORDLENGTH_9
`stop_bits`	This number of bits that shows end of a single packet. Can be: STOPBITS_1 or STOPBITS_2
`parity`	Parity is error detection bit, which show that data is made out of even or odd number of ones. Parity is either - PARITY_NONE, PARITY_EVEN, PARITY_ODD

Returns

Return value	Return explanation
SCRIPT_OPERATION_SUCCESS	Success
SCRIPT_OPERATION_FAILED	Failed
SCRIPT_NO_ACCESS	Peripheral already initialized.
SCRIPT_PARAM_INVALID	Passed invalid init parameters.

Function call example

RS232 initialization example

new string[50];
 
main(){
 
	Init(RS232, 9600, WORDLENGTH_8, STOPBITS_1, PARITY_NONE);
	while(1){ 
		write_buf(RS232, 12 ,"Hello world "); //write some data. See write_buf documentation for more detail
		read_buf(RS232, 6, string);  //read some data. See read_buf documentation for more detail
		Delay(100); 
	}
}

Notes and Warnings

WARNING: Do not initialize RS232 on separate threads. In order to use RS232 on separate threads first do DeInit on thread where it was previously initialized.

Used in Examples

Accelerometer example