ACS ACR89U-A1 User Manual download pdf (Page 32)

ACR89U-A1 – Application Programming Interface info@acs.com.hk

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Data Member Value Description

TwoOrOneStopBit BOOLEAN

2 or 1 stop bit mode:

TRUE – 2 stop bit mode

FALSE – 1 stop bit mode

Table 9: RS232_ParamDataType Data Structure

4.8.2. Functions

4.8.2.1. RS232_Config

This function sets the parameters of RS232 port. Before using this function to set parameter, the

RS232 port should be in the state of closed, if not RS232_Config will return false.

[RS232.h]

BOOLEAN RS232_Config (

const RS232_ParamDataType* Param );

Parameters:

Param [in] Storage space of the parameter data

Returns:

BOOLEAN This function returns TRUE/FALSE of the state of successfully setting parameter of

RS232.

4.8.2.2. RS232_OpenPort

This function opens RS232 port. Before using this function, the RS232 port should be in the state of

closed, if not RS232_OpenPort will return false.

[RS232.h]

BOOLEAN RS232_OpenPort (

UINT32* pulHandle );

Parameters:

pulHandle [out] Storage space of the handle for control RS232 port

Returns:

BOOLEAN This function returns TRUE/FALSE of the state of successfully open RS232 port.

4.8.2.3. RS232_ClosePort

This function closes RS232 port.

[RS232.h]

BOOLEAN RS232_ClosePort (

UINT32 ulHandle );

Parameters:

ulHandle [in] The handle value gets from RS232_OpenPort. If the value is not from

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ACS ACR89U-A1 User Manual Page 32