Advantech ADAM-4500 user manual Commsend, Commgetrecdatas

int stop	Stop bits setting
	1, 2
	(stop bit = 1 is for data bits = 5,6,7, or 8)
	(stop bit = 2 is for data bits = 6,7, or 8)
	For details, refer to RS-232 chip set data book
int cmd_type	Received data format setting.
	0: single byte mode. The data format is a single byte character.
	User can use comm_get_rec_datas to receive single byte data.
	1: command mode. The data format is a string. User can use
	comm_get_rec_str to receive string data.

Return:

Returns a 1 if command succeeds. Returns a 0 if it fails.

comm_send

Syntax:

int comm_send(unsigned char c, unsigned char port)

Function Description:

To send a character to a specified communication port.

Parameter	Description
unsigned char c	Represents character to be sent.
unsigned char port	Specifies communication port to which character is sent (COM1
or	COM2)
	1: COM1 port
	2: COM2 port

Return:

Returns a 1 if command succeeds. Returns a 0 if it fails.

comm_get_rec_datas

Syntax:

int comm_get_rec_datas(unsigned *length, unsigned char **data, unsigned char port)

Function Description :

The function is called to receive a single byte of data. The function call returns a success flag if the communication port receives any data. The function call returns a failed flag if the buffer of the communication port is empty. The length of the data packet received (in bytes) is stored in parameter "length". The contents of the data packet received are stored in parameter "data".

Parameter	Description
unsigned *length	Returns the length of the received data
unsigned char **data	Returns the received data contents. User must first allocate a