ecrobot::Rs485 Class Reference

RS485 communication class. More...

#include <Rs485.h>

List of all members.

Public Member Functions
	Rs485 (U32 baudRate=LEGO_DEFAULT_BAUD_RATE)
	Constructor.
	~Rs485 (void)
	Destructor (disable RS485).
U32	send (U8 *data, U32 offset, U32 length)
	Send data.
U32	receive (U8 *data, U32 offset, U32 length) const
	Receive data.
Static Public Attributes
static const U32	MAX_RS485_DATA_LENGTH = 64
	Maximum length of data in byte for send/receive.
static const U32	LEGO_DEFAULT_BAUD_RATE = 921600
	LEGO default baud rate [bps].

---

Detailed Description

RS485 communication class.

NXT sensor port 4 should be used for RS485 communication.
Default configrations:
921600 [bps]
Asynchronous mode
8 bits character length
1 stop bit
No parity check

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Constructor & Destructor Documentation

ecrobot::Rs485::Rs485

(

U32

baudRate = LEGO_DEFAULT_BAUD_RATE

)

Constructor.

Note:
This class must be constructed as a global object. Otherwise, a device assertion will be displayed
in the LCD when the object is constructed as a non global object. When the object is destructed while the system is shut down, RS485 is disabled automatically.

Parameters:

baudRate

RS485 baud rate [bps]

Returns:

-

ecrobot::Rs485::~Rs485

(

void

)

Destructor (disable RS485).

Parameters:

-

Returns:

-

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Member Function Documentation

U32 ecrobot::Rs485::receive	(	U8 *	data,
		U32	offset,
		U32	length
	)		const

Receive data.

Parameters:

data	Data to be received
offset	Offset of data to be received
length	Length of data to be received

Returns:

Length of received data

U32 ecrobot::Rs485::send	(	U8 *	data,
		U32	offset,
		U32	length
	)

Send data.

Parameters:

data	Data to be sent
offset	Offset of data to be sent
length	Length of data to be sent

Returns:

Length of sent data

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The documentation for this class was generated from the following file:

• device/Rs485.h