Component: DALI Master (Comms: System)

Author	MatrixTSL
Version	1.0
Category	Comms: System

DALI Master component

A serial based communications protocol designed for controlling lighting, specifically digitally controlled dimmable fluorescent ballasts. DALI requires the signals to be level shifted from VCC and GND to +9.5V - +25.5V and GND. The master component can addess up to 64 individual slaves & up to 16 groups.

Detailed description

No detailed description exists yet for this component

Examples

DALI Master Example, reads the value of a keypad and sends out DALI commands based on the key pressed, 1 = switch on a slave's light, 2 = switch off a slave's light, 3 = read the slave's light level. DALI Master Example1 DALI Slave Example, listens for DALI messages and checks that the group is correct before attempting to process the request and if required reply to the master. DALI Slave Example1

Downloadable macro reference

	ReceiveBackwardFrame
Attempts to receive an 8-bit reply 0 indicates timeout or no reply
- BYTE	Return

	TransmitForwardFrame
Send out a 16-bit frame consisting of the 8-bit address and data bytes. After sending the controller will attempt to receive If a reply is detected then the Return value will equal to the reply. If no reply is detected then the Return value will be 0.
- BYTE	Address
Address byte
- BYTE	Data
Data Byte
- BYTE	Return

	TransmitIndividualForwardFrame
Sends out an individual frame containing address and data. After sending the controller will attempt to receive a reply. If a reply is detected then the Return value will equal to the reply. If no reply is detected then the Return value will be 0.
- BYTE	Address
Individual Address 0-63
- BYTE	Type
0 = Data, 1 = Command
- BYTE	Data
- BYTE	Return

	TransmitGroupForwardFrame
Sends out a group frame containing address and data. After sending the controller will attempt to receive a reply. If a reply is detected then the Return value will equal to the reply. If no reply is detected then the Return value will be 0.
- BYTE	Address
Group Address 0-15
- BYTE	Type
0 = Data, 1 = Command
- BYTE	Data
- BYTE	Return

	Initialise
Configures the UART serial interface.
- VOID	Return

	SegShowDigit
Displays a digit on the 7-seg display
- BYTE	Digit
Which of the digits to change (0 - 3)
- BYTE	Value
The value to display (0 - 9)
- BYTE	DecimalPoint
Decides if the decimal point is lit
- VOID	Return

	RawSend
Sends data to the LCD display
- BYTE	data
The data byte to send to the LCD
[[File:]] -	type
A boolean to indicate command type: true to write data, false to write a command
- VOID	Return

	ReadAnalogAsByte
Reads one of the analogue components as an byte value
- BYTE	Channel
0 = LDR, 1 = POT
- BYTE	Return

	ReadAnalogAsInt
Reads one of the analogue components as an Integer value
- BYTE	Channel
0 = LDR, 1 = POT
[[File:]] -	Return

	RemapCharacter
Assigns a remap character allowing the PrintString function to automatically swap between pre-defined characters. The characters can be custom (in the range 0-9) or can point to an existing character in the LCD character map.
- BYTE	RemapIdx
Remap Index, Range: 0 to (Remap Characters - 1)
- BYTE	SearchCharacter
Character to look for a replace
- BYTE	ReplacementCharacter
New character value to use in place of the search character.
- VOID	Return

	Start
Startup routine required by the hardware device. Automatically clears the display after initialising.
- VOID	Return

	SetLEDState
Sets the state of a single LED
- BYTE	Port
0 = PortA, 1 = PortB
- BYTE	LED
0 = LED0, 7 = LED7
- BYTE	State
- VOID	Return

	Initialise
Must be called before any other CAN component macros to enable and initialise the CAN peripheral.
- VOID	Return

Property reference

	Properties
	TX Pin
	RX Pin
	Connections
	Simulations
	API