Component: Injector (Flowcode vNet) (Test Injectors)

Author	Matrix Ltd
Version	1.0
Category	Test Injectors

Injector (Flowcode vNet) component

Comms data injector to allow components to talk to each other between instances of Flowcode. The injector allows the data to be sent and received between multiple instances of Flowcode either running on a single machine, across a network or via the internet.

Detailed description

No detailed description exists yet for this component

Examples

Simple Single Instance

Sends out data and prints incoming data to an LCD. Uses the same port number for transmit and receive.

SingleInstanceVnet

Simple Multi Instance

The first program sends out data.

UartVnetDemoTx

The second program receives the data and prints to an LCD.

UartVnetDemoRx

Remote Lock

Here is an example of using the vNet injector to simulate a multi microcontroller system.

Microcontroller 1 is connected to a keypad and has a RS232 communications connection.

Microcontroller 2 is connected to a solenoid and has a RS232 communications connection.

Any key presses detected on microcontroller 1 will be sent via RS232 to microcontroller 2. If the correct byte sequence (1234) is received by microcontroller 2 then the solenoid is fired to unlock a door for 5 seconds.

vNet Example Node 1

vNet Example Node 2

Communications over the vNet injector can be monitored using the console.

Modbus Master and Slave example using vNet

Example of communicating using Modbus Master and Slave using two instances of Flowcode and the vNet injector component.

ModbusMasterDemo

ModBusSlaveDemo

Downloadable macro reference

	UARTBaud
- BYTE	Channel
- BYTE	Rate
- VOID	Return

	IOGetInputPin
- BYTE	Pin
[[File:]] -	Return

	UARTCheckRX
- BYTE	Channel
- BYTE	Return

	UARTInitialise
- BYTE	Channel
- VOID	Return

	GetConsoleHandle
Gets the handle to the console allowing data displaying on the panel etc.
[[File:]] -	Return

	UARTReceive
- BYTE	Channel
- BYTE	Return

	IOSetOutputPin
- BYTE	Pin
[[File:]] -	State
- VOID	Return

	UARTSend
- BYTE	Channel
- BYTE	Data
- VOID	Return

	Initialise
Sets up the injector ready to receive commands or send data
- VOID	Return

	UARTSend
- BYTE	Channel
- BYTE	Data
- VOID	Return

	Initialise
Sets up the GSM module. Returns 0 for OK, 255 for no reply and 254 for command fail.
- BYTE	Return

	SampleAccel
Samples the accelerometer 0 = no new data, 1 = new data available
- BYTE	Return

	Left
Rotates the robot left - waits for the angle to be traversed before returning
- UINT	Angle
Angle to turn in degrees
- VOID	Return

	ReadIR
Reads an IR sensor 0=Left, 1=FrontLeft, 2=Front, 3=FrontRight, 4=Right, 5=RearRight, 6=Rear, 7=RearLeft
- BYTE	index
0=Left, 1=FrontLeft, 2=Front, 3=FrontRight, 4=Right, 5=RearRight, 6=Rear, 7=RearLeft
- UINT	Return

	LCDDrawPixel
Allows a single pixel on the LCD to be set or cleared
- BYTE	X
X Pixel 0-127
- BYTE	Y
Y Pixel 0-31
- BYTE	State
0=White (Off), 1=Black (On)
- VOID	Return

	ServoSetPosition
Allows one of the servo positions to be assigned
- BYTE	Channel
Range 0-3
- BYTE	Position
Range 0-255
- VOID	Return

	CardBitmap
Displays a monochrome bitmap read from the card on the LCD
- BYTE	X
Range 0-127
- BYTE	Y
Range 0-31
- STRING	Filename
- BYTE	Return

	CardRecordMic
Records an audio stream on the card from the microphone
- BYTE	BitDepth
0=8-bit, 1=16-bit
- BYTE	SampleRate
Sample Rate 0=8KHz, 1=16KHz
- UINT	RecordTime
Time to record for in seconds, Range 0-65535
- STRING	Filename
- BYTE	Return

	CardOpen
Attempts to open an existing file on the SD card 255=Error, 1=File not found, 0=Open OK
- STRING	Filename
- BYTE	Return

	Forwards
Drives the robot forwards - waits for the distance to be traversed before returning
- UINT	Distance
Distance in mm
- VOID	Return

	ReadBearing
Reads the compass bearing based on the degrees clockwise from magnetic north.
[[File:]] -	Return

	GetConsoleHandle
Gets the handle to the console allowing data displaying on the panel etc.
[[File:]] -	Return

	LCDDrawLine
Allows a single pixel width line to be drawn on the LCD
- BYTE	X1
X Pixel 0-127
- BYTE	Y1
Y Pixel 0-31
- BYTE	X2
X Pixel 0-127
- BYTE	Y2
Y Pixel 0-31
- VOID	Return

	ServoAutoMoveToPosition
Allows one of the servo positions to move gradually to a new position
- BYTE	Channel
Range 0-3
- BYTE	Position
Range 0-255
- VOID	Return

	ReadAllValue
Reads a single value stored from the read all command Index dictates which sensor value to read
- BYTE	Index
0=SW, 1-8=IR, 9-10=Line, 11=Light, 12=Mic, 13-15=Accel
- UINT	Return

	LCDBacklight
Allows the LCD backlight brighntess to be adjusted
- BYTE	Intensity
Range 0-100, 0=Off, 1=Min Brightness, 100=Max Brightness
- VOID	Return

	LCDDrawRect
Allows a rectangle to be drawn on the LCD
- BYTE	X1
X Pixel 0-127
- BYTE	Y1
Y Pixel 0-31
- BYTE	X2
X Pixel 0-127
- BYTE	Y2
Y Pixel 0-31
- VOID	Return

	ReadLine
Reads one of the IR line sensors 0-1 0=Left, 1=Right
- BYTE	index
0=Left, 1=Right
- UINT	Return

	ServoDisable
Allows one of the servo outputs 0-3 to be disabled
- BYTE	Channel
Range 0-3
- VOID	Return

	ServoEnable
Allows one of the servo outputs 0-3 to be enabled
- BYTE	Channel
Range 0-3
- VOID	Return

	CardReadByte
Reads a byte from the currently open file. Starts at the beginning of the file and auto increments to the end
- BYTE	Return

	CardErase
Attempts to delete an existing file on the SD card 255=Error, 1=File not found, 0=Delete OK
- STRING	Filename
- BYTE	Return

	CardWriteByte
Appends a byte to the end of the currently open file
- BYTE	Data
- VOID	Return

	EncoderRead
Reads one of the motor encoder counters. Approx 0.328296mm of travel per encoder unit.
- BYTE	index
0=Left, 1=Right
- UINT	Return

	SetMotors
Sets the motor speeds without feedback Range -100 to 100
[[File:]] -	Left
Range -100 to 100
[[File:]] -	Right
Range -100 to 100
- VOID	Return

	Backwards
Drives the robot backwards - waits for the distance to be traversed before returning
- UINT	Distance
Distance in mm
- VOID	Return

	EncoderReset
Resets the motor encoder counters
- VOID	Return

	LCDVerbose
Allows the LCD to automatically report the API commands as they get processed. Default - verbose on
- BYTE	State
0=Off 1=On
- VOID	Return

	SetProp
Allows the COM port property to be set from a parent component.
- STRING	PropName
- ULONG	PropVal
- VOID	Return

	CardInit
Attempts to startup the SD card 255=No Card, 254=Init Fail, 0=Init OK
- BYTE	Return

	GetProp
Allows the property filter for the COM port list to be copied to a parent component.
- STRING	PropName
- STRING	Return

	LCDClear
Clears the LCD
- VOID	Return

Property reference

	Properties
	Network Interface
Allows different network interfaces to be selected. The current network interface can be determined by looking at the My IP properties.
	Incoming Channel
TCP Channel Instance, allows multiple servers and clients to run on the same machine or inside the same simulation.
	Incoming Port
Port used for incoming communications. 80=HTTP Ports have to match up to allow communications to be sent and received.
	Outgoing Channel
TCP Channel Instance, allows multiple servers and clients to run on the same machine or inside the same simulation.
	Outgoing Port
Port used for outgoing communications. 80=HTTP Ports have to match up to allow communications to be sent and received.
	Connection Mode
Specified if this Vnet node is going to connect to another instance of Flowcode running on this PC or a networked PC.
	Circular Buffer Size
Size of the circular buffers used to temporarily store the incoming and outgoing data.
	Remote IP0
Remotel IP address to connect to byte 0
	Remote IP1
Remotel IP address to connect to byte 1
	Remote IP2
Remotel IP address to connect to byte 2
	Remote IP3
Remotel IP address to connect to byte 3
	My IP0
Local IP address byte 0
	My IP1
Local IP address byte 1
	My IP2
Local IP address byte 2
	My IP3
Local IP address byte 3
	Connections
	Simulations
	Show Console