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


==Component Source Code==
==Detailed description==


Please click here to download the component source project: [https://www.flowcode.co.uk/wiki/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 67: Line 63:




''<span style="color:red;">No additional examples</span>''


==Macro reference==


{| class="wikitable" style="width:60%; background-color:#FFFFFF;"
''<span style="color:red;">No additional examples</span>''
|-
| 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;"
|-
| 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''
|}


==Macro reference==


===Disable===
{| class="wikitable" style="width:60%; background-color:#FFFFFF;"
{| class="wikitable" style="width:60%; background-color:#FFFFFF;"
|-
|-
Line 248: Line 93:




===Enable===
{| class="wikitable" style="width:60%; background-color:#FFFFFF;"
{| class="wikitable" style="width:60%; background-color:#FFFFFF;"
|-
|-
Line 261: Line 107:




===Initialise===
{| class="wikitable" style="width:60%; background-color:#FFFFFF;"
{| class="wikitable" style="width:60%; background-color:#FFFFFF;"
|-
|-
Line 274: Line 121:




 
===SetOutput===
 
==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;"
{| class="wikitable" style="width:60%; background-color:#FFFFFF;"
|-
|-
Line 379: Line 138:
| width="90%" style="border-top: 2px solid #000;" | ''Return''
| 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''
|}




Line 507: Line 225:
|-
|-
| colspan="2" | &nbsp;
| colspan="2" | &nbsp;
|}==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''
|}
|}


==Component Source Code==


{| class="wikitable" style="width:60%; background-color:#FFFFFF;"
Please click here to download the component source project: [https://www.flowcode.co.uk/wiki/componentsource/FC_Comp_Source_DAC_MCP4725.fcfx FC_Comp_Source_DAC_MCP4725.fcfx]
|-
| 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''
|}


 
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]
{| 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;
|}

Latest revision as of 16:45, 25 June 2026

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.

Detailed description

No detailed description exists yet for this component

Examples

No additional examples






Macro reference

Disable

Disable
Disables the DAC output. 
- VOID Return


Enable

Enable
Enables the DAC Output. 
- VOID Return


Initialise

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


SetOutput

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


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
 

Component Source Code

Please click here to download the component source project: FC_Comp_Source_DAC_MCP4725.fcfx

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

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