Component: DAC (MCP4725) (MCP4725) (Analog Output): Difference between revisions

Revision as of 15:13, 20 January 2023

Author	Matrix TSL
Version	1.0
Category	Analog Output

DAC (MCP4725) component

Component to drive a 12-bit digital to analogue converter (DAC) IC from Microchip via an I2C interface.

Component Source Code

Please click here to view the component source code (Beta): FC_Comp_Source_DAC_MCP4725.fcfx

Detailed description

No detailed description exists yet for this component

Examples

No additional examples

Macro reference

	SetOutput
Sets the output voltage of the DAC 12-Bit: Range 0-4095
- UINT	DAC_Value
The value to output to the DAC
- VOID	Return

	Disable
Disables the DAC output.
- VOID	Return

	Enable
Enables the DAC Output.
- VOID	Return

	Initialise
Configures the I2C peripheral ready for communications and initialises the internal variables. DAC needs to be enabled before any output voltage can be generated.
- VOID	Return

Property reference

	Properties
	Disabled Pull Down
Sets the pull down resistance when the IC's DAC output is disabled.
	Vref Voltage
Reference Voltage, Used to calculate the Voltage resolution.
	Steps
Number of discrete output states available from the DAC.
	Control Bits
Number of digital control bits
	Resolution
Maximum output resolution based on number of control bits.
	Voltage Resolution
Specifies the Resolution per digital bit in terms of Voltage.
	I2C Connections
	User Address Bits
Specifies the bottom three "user" bits of the I2C 7-bit address
	Channel
Channel selection
	SDA
Pin used for SDA (data signal)
	SCL
Pin used for SCL (clock signal)
	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

==Macro reference==

	SetOutput
Sets the output voltage of the DAC 12-Bit: Range 0-4095
- UINT	DAC_Value
The value to output to the DAC
- VOID	Return

	Disable
Disables the DAC output.
- VOID	Return

	Enable
Enables the DAC Output.
- VOID	Return

	Initialise
Configures the I2C peripheral ready for communications and initialises the internal variables. DAC needs to be enabled before any output voltage can be generated.
- VOID	Return

Property reference

	Properties
	Disabled Pull Down
Sets the pull down resistance when the IC's DAC output is disabled.
	Vref Voltage
Reference Voltage, Used to calculate the Voltage resolution.
	Steps
Number of discrete output states available from the DAC.
	Control Bits
Number of digital control bits
	Resolution
Maximum output resolution based on number of control bits.
	Voltage Resolution
Specifies the Resolution per digital bit in terms of Voltage.
	I2C Connections
	User Address Bits
Specifies the bottom three "user" bits of the I2C 7-bit address
	Channel
Channel selection
	SDA
Pin used for SDA (data signal)
	SCL
Pin used for SCL (clock signal)
	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

@@ Line 17: / Line 17: @@
 ==Component Source Code==
-Please click here for the component source code: [https://www.flowcode.co.uk/wikicopy/componentsource/FC_Comp_Source_DAC_MCP4725.fcfx FC_Comp_Source_DAC_MCP4725.fcfx]
+Please click here to view the component source code (Beta): [https://www.flowcode.co.uk/FlowchartView/?wfile=componentsource/FC_Comp_Source_DAC_MCP4725.fcfx FC_Comp_Source_DAC_MCP4725.fcfx]
 ==Detailed description==
@@ Line 38: / Line 40: @@
 ==Examples==
@@ Line 56: / Line 60: @@
 ==Macro reference==
+{| class="wikitable" style="width:60%; background-color:#FFFFFF;"
+|-
+| width="10%" align="center" style="background-color:#D8C9D8;" align="center" | [[File:Fc9-comp-macro.png]]
+| width="90%" style="background-color:#D8C9D8; color:#4B008D;" | '''SetOutput'''
+|-
+| colspan="2" | Sets the output voltage of the DAC 12-Bit: Range 0-4095&nbsp;
+|-
+|-
+| width="10%" align="center" | [[File:Fc9-u16-icon.png]] - UINT
+| width="90%" | DAC_Value
+|-
+| colspan="2" | The value to output to the DAC&nbsp;
+|-
+| width="10%" align="center" style="border-top: 2px solid #000;" | [[File:Fc9-void-icon.png]] - VOID
+| width="90%" style="border-top: 2px solid #000;" | ''Return''
+|}
+{| class="wikitable" style="width:60%; background-color:#FFFFFF;"
+|-
+| width="10%" align="center" style="background-color:#D8C9D8;" align="center" | [[File:Fc9-comp-macro.png]]
+| width="90%" style="background-color:#D8C9D8; color:#4B008D;" | '''Disable'''
+|-
+| colspan="2" | Disables the DAC output.&nbsp;
+|-
+|-
+| width="10%" align="center" style="border-top: 2px solid #000;" | [[File:Fc9-void-icon.png]] - VOID
+| width="90%" style="border-top: 2px solid #000;" | ''Return''
+|}
+{| class="wikitable" style="width:60%; background-color:#FFFFFF;"
+|-
+| width="10%" align="center" style="background-color:#D8C9D8;" align="center" | [[File:Fc9-comp-macro.png]]
+| width="90%" style="background-color:#D8C9D8; color:#4B008D;" | '''Enable'''
+|-
+| colspan="2" | Enables the DAC Output.&nbsp;
+|-
+|-
+| width="10%" align="center" style="border-top: 2px solid #000;" | [[File:Fc9-void-icon.png]] - VOID
+| width="90%" style="border-top: 2px solid #000;" | ''Return''
+|}
+{| class="wikitable" style="width:60%; background-color:#FFFFFF;"
+|-
+| width="10%" align="center" style="background-color:#D8C9D8;" align="center" | [[File:Fc9-comp-macro.png]]
+| width="90%" style="background-color:#D8C9D8; color:#4B008D;" | '''Initialise'''
+|-
+| colspan="2" | Configures the I2C peripheral ready for communications and initialises the internal variables. DAC needs to be enabled before any output voltage can be generated.&nbsp;
+|-
+|-
+| width="10%" align="center" style="border-top: 2px solid #000;" | [[File:Fc9-void-icon.png]] - VOID
+| width="90%" style="border-top: 2px solid #000;" | ''Return''
+|}
+==Property reference==
+{| class="wikitable" style="width:60%; background-color:#FFFFFF;"
+|-
+| width="10%" align="center" style="background-color:#D8C9D8;" | [[File:Fc9-prop-icon.png]]
+| width="90%" style="background-color:#D8C9D8; color:#4B008D;" | '''Properties'''
+|-
+|-
+| width="10%" align="center" | [[File:Fc9-type-16-icon.png]]
+| width="90%" | Disabled Pull Down
+|-
+| colspan="2" | Sets the pull down resistance when the IC's DAC output is disabled.&nbsp;
+|-
+| width="10%" align="center" | [[File:Fc9-type-15-icon.png]]
+| width="90%" | Vref Voltage
+|-
+| colspan="2" | Reference Voltage, Used to calculate the Voltage resolution.&nbsp;
+|-
+| width="10%" align="center" | [[File:Fc9-type-21-icon.png]]
+| width="90%" | Steps
+|-
+| colspan="2" | Number of discrete output states available from the DAC.&nbsp;
+|-
+| width="10%" align="center" | [[File:Fc9-type-14-icon.png]]
+| width="90%" | Control Bits
+|-
+| colspan="2" | Number of digital control bits&nbsp;
+|-
+| width="10%" align="center" | [[File:Fc9-type-10-icon.png]]
+| width="90%" | Resolution
+|-
+| colspan="2" | Maximum output resolution based on number of control bits.&nbsp;
+|-
+| width="10%" align="center" | [[File:Fc9-type-15-icon.png]]
+| width="90%" | Voltage Resolution
+|-
+| colspan="2" | Specifies the Resolution per digital bit in terms of Voltage.&nbsp;
+|-
+| width="10%" align="center" style="background-color:#EAE1EA;" | [[File:Fc9-conn-icon.png]]
+| width="90%" style="background-color:#EAE1EA; color:#4B008D;" | I2C Connections
+|-
+|-
+| width="10%" align="center" | [[File:Fc9-type-16-icon.png]]
+| width="90%" | User Address Bits
+|-
+| colspan="2" | Specifies the bottom three "user" bits of the I2C 7-bit address&nbsp;
+|-
+| width="10%" align="center" | [[File:Fc9-type-16-icon.png]]
+| width="90%" | Channel
+|-
+| colspan="2" | Channel selection&nbsp;
+|-
+| width="10%" align="center" | [[File:Fc9-type-5-icon.png]]
+| width="90%" | SDA
+|-
+| colspan="2" | Pin used for SDA (data signal)&nbsp;
+|-
+| width="10%" align="center" | [[File:Fc9-type-5-icon.png]]
+| width="90%" | SCL
+|-
+| colspan="2" | Pin used for SCL (clock signal)&nbsp;
+|-
+| width="10%" align="center" | [[File:Fc9-type-7-icon.png]]
+| width="90%" | Stop Delay
+|-
+| colspan="2" | 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. &nbsp;
+|-
+| width="10%" align="center" | [[File:Fc9-type-16-icon.png]]
+| width="90%" | Baud Select
+|-
+| colspan="2" | Baud rate option selector&nbsp;
+|-
+| width="10%" align="center" | [[File:Fc9-type-14-icon.png]]
+| width="90%" | Baud Rate
+|-
+| colspan="2" | Baud rate to be used&nbsp;
+|-
+| width="10%" align="center" style="background-color:#EAE1EA;" | [[File:Fc9-conn-icon.png]]
+| width="90%" style="background-color:#EAE1EA; color:#4B008D;" | Simulation
+|-
+|-
+| width="10%" align="center" | [[File:Fc9-type-7-icon.png]]
+| width="90%" | Simulate Comms
+|-
+| colspan="2" | &nbsp;
+|}==Macro reference==
 {| class="wikitable" style="width:60%; background-color:#FFFFFF;"

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Revision as of 15:13, 20 January 2023

DAC (MCP4725) component

Component Source Code

Detailed description

Examples

Macro reference

Property reference

Property reference