Component: UART (CAL) (Misc)

Author	Matrix TSL
Version	2.2
Category	Misc

UART component

CAL = Code Abstraction Layer - Allows one code base to run on a wide range of chips. A low level implementation giving direct access to the UART peripheral. Includes simulation functionality to commmunicate via a COM port or an Injector component. Also includes timestamped logging via the console and Data Recorder trace monitoring support.

Detailed description

No detailed description exists yet for this component

Examples

No additional examples

Macro reference

ControlPin

	ControlPin
Allows direct control over the TX and RTS pins Also allows for reading of the state of the RX and CTS pins. Only available when the UART is uninitialised.
- BYTE	Pin
0=TX, 1=RX, 2=RTS, 3=CTS
- BYTE	State

- BYTE	Return

Delay

	Delay
Software UART Bit Delay
- VOID	Return

GetConsoleHandle

	GetConsoleHandle

- HANDLE	Return

GetList

	GetList
Gets Named property List
- STRING	Name

- STRING	Return

GetValue

	GetValue
Get Value of Named property
- STRING	Name

- STRING	Return

Init

	Init
Initialize the component with the specified properties
- VOID	Return

Receive

	Receive
Receive a Character
- BYTE	Timeout
Period to wait for the character to be received
- INT	Return

ReceiveByteArray

	ReceiveByteArray
Receives an array of bytes and returns the number of bytes received.
- BYTE	Data

- UINT	NumBytes
Maximum number of bytes to try and receive
- BYTE	Timeout
Max amount of time in ms to wait between bytes
- BYTE	Return

ReceiveString

	ReceiveString
Receives a string of bytes and returns the number of bytes received.
- STRING	StringData

- UINT	NumBytes
Maximum number of bytes to try and receive
- BYTE	Timeout
Max amount of time in ms to wait between bytes
- BYTE	Return

Send

	Send
Send the Character
- UINT	Char
The Character to send
- VOID	Return

SendByteArray

	SendByteArray
Transmits an array of bytes via the UART peripheral
- BYTE	Data
Data to transmit
- UINT	NumBytes
Number of bytes to send from the array
- VOID	Return

SendNumber

	SendNumber
Transmits a numeric value as an ASCII string
- LONG	Number
Numeric value to send
- VOID	Return

SendString

	SendString
Transmits a string of bytes via the UART peripheral
- STRING	Data
Data String to transmit
- VOID	Return

SetValue

	SetValue
set Value of Named property
- STRING	Name

- STRING	Value

- VOID	Return

TestProperty

	TestProperty
A simple macro to allow us to test the value of a single property during runtime.
- BYTE	Property
0=UseTX, 1=UseRX, 2=UseFlowControl
- BYTE	Return

Uninit

	Uninit
Un-initialize the UART and release the resources
- VOID	Return

UpdateBaud

	UpdateBaud
Changes the UART Baud rate. 0=1200, 1=2400, 2=4800, 3=9600, 4=19200, 5=38400, 6=57600, 7=115200, 8=250000
- BYTE	new_baud
0=1200, 1=2400, 2=4800, 3=9600, 4=19200, 5=38400, 6=57600, 7=115200, 8=250000
- VOID	Return

Property reference

	Properties
	Component Enable
A global flag to enable or disable the UART component from producing code. Useful for generating components with multiple communications options.
	Connections
	Channel
UART Channel selector Software channels are bit banged using generic I/O pins but are not as reliable as hardware channels. Hardware channels use the selected peripheral on-board the target microcontroller.
	Transmit
	Use TX
Selects if the Transmit pin is used by the component. Yes: The TX pin is active and used to transmit data for the UART. No: The TX pin is disabled and free to be used as general I/O.
	TX
Pin to be used for Transmit data
	Receive
	Use RX
Selects if the Receive pin is used by the component. Yes: The RX pin is active and used to receive data for the UART. No: The RX pin is disabled and free to be used as general I/O.
	RX
Pin to be used for Receive data
	Flow Control
	Use Flow Control
Flow Control (Handshake) enable or disable. On: Two I/O pins are used to control the flow of data in and out of the device. Off: Flow control is disabled.
	Options
	Baud Options
Baud rate option selector
	Baud Rate

	Data Bits
Number of data bits
	Return
Return data width from Receive macro. 8-bit data mode always returns a byte ranging from 0-255, 255 could mean a timeout or could be a valid data. 16-bit data mode rereturns 0-255 for valid data, 256 for a timeout, return data must be stored into an INT or UINT variable.
	Echo
Automatically echoes back any received data when enabled by re-transmitting the received byte.
	Interrupt
Automatic receive interrupt mode enable or disable. Used on components such as the GSM or GPS where data can come in at any time. Software channel is disabled when interrupt is enabled, for interrupt with a software channel use an I/O edge triggered interrupt.
	Simulation
	Scope Traces
Selects if the scope traces are automatically added to the data recorder window or not. Simulation - draws an approximation of the UART data onto the scope trace. ICT - sets up the scope trace for incoming data and adds UART packet decoding at the correct BAUD.
	Console Data
Selects if the console data is automatically generated or not
	Console Format
Controls if the data is shown as a log with time and date stamps or just as raw data
	Console Columns
Number of characters that can be displayed on a single line of the console.
	Data Source
Simulation data source used to allow the component to connect to various remote devices Nothing - Simulation data is ignored COM port - Routes the communication data to and from a physical or virtual COM port API - Routes the communication data via a data injector component on the Panel.