Component: I2C Free (Peripheral CAL)

Author	Matrix Ltd
Version	1.3
Category	Peripheral CAL

I2C Free component

Chip Abstraction Layer for Two Wire I2C Communications

Component Source Code

Please click here for the component source code: FC_Comp_Source_I2C_Free.fcfx

Detailed description

No detailed description exists yet for this component

Examples

Example showing how to build a component using a CAL component Using CAL Components.

Downloadable macro reference

	Slave_Uninit
Uninitialise the Slave
- VOID	Return

	GetValue
Get the Named property value.
- STRING	Name
- STRING	Return

	Master_Stop
Output a Master Stop
- VOID	Return

	Slave_Init
Initialise the Slave with the given Address, or range of Addresses. Only address bits that have a corresponding bit set in the Mask will be compared with the incoming bus address.
- BYTE	Address
7 Bit Address of this device (Bit 0 is ignored)
- BYTE	Mask
Bit mask used to compare addresses
- VOID	Return

	Master_Uninit
Uninitialise the Master
- VOID	Return

	Slave_Status
Returns the Slave Status. Bit 0 = 1 Indicates address/data byte available in the buffer to read Bit 5 = 1 Indicates that the last byte received or transmitted was data (else address)
- BYTE	Return

	GetConsoleHandle
Obtains the CAL console handle
- HANDLE	Return

	Slave_TxByte
Send a data byte, returns Ack/Nak from Master 0=Ack=More, 1=Nak=Last
- BYTE	Data
- BYTE	Return

	Slave_RxByte
Returns the data received, and sends either Ack or Nak Set parameter Last as: 1=Last=Nak, 0=Ack=More
- BYTE	Last
Sends Ack if 0, else Nak
- BYTE	Return

	SetValue
Change Named property to new Value. If "CHANNEL" the ports will be also updated from the fcd
- STRING	Name
- STRING	Value
port value as string
- VOID	Return

	Master_Init
Initialise the Master
- VOID	Return

	Master_Start
Output a Master Start sequence
- VOID	Return

	Master_TxByte
Send a data byte
- BYTE	Data
- BYTE	Return

	Master_Restart
Output a Master Restart sequence
- VOID	Return

	Master_RxByte
Returns a received data byte. Set Last=0 if there is following more Master_RxByte macros Set Last=1 if this is the last Master_RxByte and it is followed with Master_Stop. If Last = 1 the I2C bus will be presented with a 'Nack' condition.
- BYTE	Last
Range: 0-1 - 0 = Not the last byte to receive, 1 = last byte to receive
- BYTE	Return

	GetList
returns Named property List as filter string
- STRING	Name
- STRING	Return

Property reference

	Properties
	Channel
Channel selection
	SDA
Pin used for SDA (data signal)
	SCL
Pin used for SCL (clock signal)
	Baud Select
Baud rate option selector
	Baud Rate
Baud rate to be used
	Slew Rate Control
Slew Rate Control Enabled or Disabled
	SMBus Inputs
When Enabled input logic thresholds are compliant with SMBus specification
	Stop Delay
On older microcontroller devices there is a potential for the I2C hardware channel to lock up if there is not a 10ms delay between an I2C stop event and the next I2C start event. Most modern microcontrollers will not have a problem so this property can be disabled to speed up the I2C communications.
	Simulation
	Scope Traces
Selects if the scope traces are automatically generated or not
	Console Data
Selects if the console data is automatically generated or not