Component: Real Time Clock (MCP7940N) (Real Time Clock)

Author	Matrix TSL
Version	1.0
Category	Real Time Clock

Real Time Clock (MCP7940N) component

Serial (I2C) Real Time Clock component for MCP7940N device. When used with a MIAC project this component gives access to the internal RTC (if fitted, depending upon model) and the component properties will be automatically configured.

Component Source Code

Please click here to download the component source project: FC_Comp_Source_RTC_(MCP7940N).fcfx

Please click here to view the component source code (Beta): FC_Comp_Source_RTC_(MCP7940N).fcfx

Detailed description

No detailed description exists yet for this component

Examples

No additional examples

Macro reference

SetTime

	SetTime
Sets the time from a string HHMMSS
- STRING	Time
- VOID	Return

GetTime

	GetTime
Returns the time as a string HHMMSS
- STRING	Return

ReadRegister

	ReadRegister
Read and return the value of the RTC register at the given address
- BYTE	address
- BYTE	Return

SetDate

	SetDate
Sets the date from a string DDMMYY
- STRING	Date
- VOID	Return

GetDate

	GetDate
Returns the date as a string DDMMYY
- STRING	Return

WriteRegister

	WriteRegister
Write the given data value to the RTC register at the given address
- BYTE	address
- BYTE	data
- VOID	Return

Initialise

	Initialise
Initialises the component ready for I2C communications
- VOID	Return

Property reference

	Properties
	Connections
	Channel
Channel selection
	SDA
Pin used for SDA (data signal)
	SDA Remap Pin
	SCL
Pin used for SCL (clock signal)
	SCL Remap Pin
	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.
	Baud Select
Baud rate option selector
	Baud Rate
Baud rate to be used
	Simulation
	Simulate Comms