Difference between revisions of "Component: DAC Quad (MCP4728) (MCP4728) (Analog Output)"
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− | | width="20%" style="color: gray;" | Author | + | | width="20%" style="color:gray;" | Author |
| Matrix TSL | | Matrix TSL | ||
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− | | width="20%" style="color: gray;" | Version | + | | width="20%" style="color:gray;" | Version |
− | | 1.0 | + | | 1.0 |
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− | | width="20%" style="color: gray;" | Category | + | | width="20%" style="color:gray;" | Category |
| Analog Output | | Analog Output | ||
|} | |} | ||
+ | ==DAC Quad (MCP4728) component== | ||
+ | Component to drive a quad digital to analogue converter (DAC) IC from Microchip via an I2C interface. Compatible with MCP4728 (12-Bit) devices. | ||
− | == | + | ==Component Source Code== |
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− | + | Please click here to download the component source project: [https://www.flowcode.co.uk/wiki/componentsource/FC_Comp_Source_DAC_MCP4728.fcfx FC_Comp_Source_DAC_MCP4728.fcfx] | |
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+ | Please click here to view the component source code (Beta): [https://www.flowcode.co.uk/FlowchartView/?wfile=componentsource/FC_Comp_Source_DAC_MCP4728.fcfx FC_Comp_Source_DAC_MCP4728.fcfx] | ||
− | == | + | ==Detailed description== |
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− | + | ''No detailed description exists yet for this component'' | |
+ | ==Examples== | ||
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− | + | ''<span style="color:red;">No additional examples</span>'' | |
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− | + | ==Macro reference== | |
− | '' | + | ===ControlPins=== |
+ | {| 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;" | '''ControlPins''' | ||
+ | |- | ||
+ | | colspan="2" | Allows Shutdown (SHDN) and Latch (LDAC) pins to be controlled directly if enabled. | ||
+ | |- | ||
+ | |- | ||
+ | | width="10%" align="center" | [[File:Fc9-bool-icon.png]] - BOOL | ||
+ | | width="90%" | Latch | ||
+ | |- | ||
+ | | colspan="2" | 0 = Data output driven from DAC register, 1 = Data output locked | ||
+ | |- | ||
+ | | 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'' | ||
+ | |} | ||
+ | ===Disable=== | ||
+ | {| 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. | ||
+ | |- | ||
+ | |- | ||
+ | | width="10%" align="center" | [[File:Fc9-u8-icon.png]] - BYTE | ||
+ | | width="90%" | Channel | ||
+ | |- | ||
+ | | colspan="2" | Range: 0-3 / 0=DAC Channel 0 / 1=DAC Channel 1 ... | ||
+ | |- | ||
+ | | 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'' | ||
+ | |} | ||
− | |||
− | + | ===Enable=== | |
+ | {| 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. | ||
+ | |- | ||
+ | |- | ||
+ | | width="10%" align="center" | [[File:Fc9-u8-icon.png]] - BYTE | ||
+ | | width="90%" | Channel | ||
+ | |- | ||
+ | | colspan="2" | Range: 0-3 / 0=DAC Channel 0 / 1=DAC Channel 1 ... | ||
+ | |- | ||
+ | | 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'' | ||
+ | |} | ||
− | |||
+ | ===Initialise=== | ||
+ | {| 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 SPI peripheral ready for communications and initialises the internal variables. DAC needs to be enabled before any output voltage can be generated. | ||
+ | |- | ||
+ | |- | ||
+ | | 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'' | ||
+ | |} | ||
− | + | ===SetDeviceAddress=== | |
+ | {| 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;" | '''SetDeviceAddress''' | ||
+ | |- | ||
+ | | colspan="2" | Writes a new device address into EE memory. The use LDAC pin component property must be set to true and the LDAC pin should be unique for every MCP4728 device connected to the I2C bus. | ||
+ | |- | ||
+ | |- | ||
+ | | width="10%" align="center" | [[File:Fc9-u8-icon.png]] - BYTE | ||
+ | | width="90%" | OldAddress | ||
+ | |- | ||
+ | | colspan="2" | Range: 0-7 | ||
+ | |- | ||
+ | | width="10%" align="center" | [[File:Fc9-u8-icon.png]] - BYTE | ||
+ | | width="90%" | NewAddress | ||
+ | |- | ||
+ | | colspan="2" | Range: 0-7 | ||
+ | |- | ||
+ | | 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'' | ||
+ | |} | ||
− | |||
− | + | ===SetInitialEEOutput=== | |
+ | {| 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;" | '''SetInitialEEOutput''' | ||
+ | |- | ||
+ | | colspan="2" | Stores a DAC value into EE memory to be used on power up. | ||
+ | |- | ||
+ | |- | ||
+ | | width="10%" align="center" | [[File:Fc9-u8-icon.png]] - BYTE | ||
+ | | width="90%" | Channel | ||
+ | |- | ||
+ | | colspan="2" | Range: 0-3 / 0=DAC Channel 0 / 1=DAC Channel 1 ... | ||
+ | |- | ||
+ | | width="10%" align="center" | [[File:Fc9-u16-icon.png]] - UINT | ||
+ | | width="90%" | DAC_Value | ||
+ | |- | ||
+ | | colspan="2" | The value to output to the DAC | ||
+ | |- | ||
+ | | 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'' | ||
+ | |} | ||
− | |||
− | + | ===SetOutput=== | |
+ | {| 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 | ||
+ | |- | ||
+ | |- | ||
+ | | width="10%" align="center" | [[File:Fc9-u8-icon.png]] - BYTE | ||
+ | | width="90%" | Channel | ||
+ | |- | ||
+ | | colspan="2" | Range: 0-3 / 0=DAC Channel 0 / 1=DAC Channel 1 ... | ||
+ | |- | ||
+ | | width="10%" align="center" | [[File:Fc9-u16-icon.png]] - UINT | ||
+ | | width="90%" | DAC_Value | ||
+ | |- | ||
+ | | colspan="2" | The value to output to the DAC | ||
+ | |- | ||
+ | | 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;" | |
− | + | |- | |
− | Number of discrete output states available from the DAC. | + | | width="10%" align="center" style="background-color:#D8C9D8;" | [[File:Fc9-prop-icon.png]] |
− | + | | width="90%" style="background-color:#D8C9D8; color:#4B008D;" | '''Properties''' | |
− | + | |- | |
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− | + | | width="10%" align="center" | [[File:Fc9-type-16-icon.png]] | |
− | + | | width="90%" | Pull Down Option | |
− | Number of digital control bits | + | |- |
− | + | | colspan="2" | | |
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− | + | | width="10%" align="center" | [[File:Fc9-type-16-icon.png]] | |
− | + | | width="90%" | VREF Option | |
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− | Maximum output resolution based on number of control bits. | + | | colspan="2" | |
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− | + | | width="10%" align="center" | [[File:Fc9-type-16-icon.png]] | |
− | + | | width="90%" | Gain Option | |
− | + | |- | |
− | + | | colspan="2" | Selects the maximum reference value for the DAC | |
− | Specifies the Resolution per digital bit in terms of Voltage. | + | |- |
− | + | | width="10%" align="center" | [[File:Fc9-type-15-icon.png]] | |
− | + | | width="90%" | Vref Voltage | |
− | + | |- | |
− | + | | colspan="2" | Reference Voltage, Used to calculate the Voltage resolution. | |
− | + | |- | |
− | + | | width="10%" align="center" | [[File:Fc9-type-21-icon.png]] | |
− | + | | width="90%" | Steps | |
− | + | |- | |
− | + | | colspan="2" | Number of discrete output states available from the DAC. | |
− | + | |- | |
− | + | | width="10%" align="center" | [[File:Fc9-type-14-icon.png]] | |
− | + | | width="90%" | Control Bits | |
− | + | |- | |
− | Channel selection | + | | colspan="2" | Number of digital control bits |
− | + | |- | |
− | + | | width="10%" align="center" | [[File:Fc9-type-10-icon.png]] | |
− | + | | width="90%" | Resolution | |
− | + | |- | |
− | + | | colspan="2" | Maximum output resolution based on number of control bits. | |
− | Pin used for SDA (data signal) | + | |- |
− | + | | 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. | |
− | + | |- | |
− | Pin used for SCL (clock signal) | + | | 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%" | Device Address | |
− | Baud rate option selector | + | |- |
− | + | | colspan="2" | | |
− | + | |- | |
− | + | | width="10%" align="center" | [[File:Fc9-type-16-icon.png]] | |
− | + | | width="90%" | Channel | |
− | + | |- | |
− | Baud rate to be used | + | | colspan="2" | Channel selection |
− | + | |- | |
− | + | | width="10%" align="center" | [[File:Fc9-type-5-icon.png]] | |
− | + | | width="90%" | SDA | |
− | + | |- | |
− | + | | colspan="2" | Pin used for SDA (data signal) | |
− | On older microcontroller devices there is a potential for the I2C hardware channel to lock up if there is not | + | |- |
− | + | | width="10%" align="center" | [[File:Fc9-type-5-icon.png]] | |
− | a 10ms delay between an I2C stop event and the next I2C start event. | + | | width="90%" | SCL |
− | + | |- | |
− | + | | colspan="2" | Pin used for SCL (clock signal) | |
− | + | |- | |
− | Most modern microcontrollers will not have a problem so this property can be disabled to speed up the | + | | width="10%" align="center" | [[File:Fc9-type-16-icon.png]] |
− | + | | width="90%" | Baud Select | |
− | I2C communications. | + | |- |
− | + | | colspan="2" | Baud rate option selector | |
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− | + | | width="10%" align="center" | [[File:Fc9-type-14-icon.png]] | |
− | + | | width="90%" | Baud Rate | |
− | + | |- | |
− | Allows the LDAC pin to be driven from an output pin on the microcontroller. | + | | colspan="2" | Baud rate to be used |
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− | If not used then tie the LDAC pin to GND to allow the DAC to function. | + | | 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. | |
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− | + | | width="10%" align="center" | [[File:Fc9-type-7-icon.png]] | |
− | + | | width="90%" | Use LDAC Pin | |
− | + | |- | |
− | + | | colspan="2" | Allows the LDAC pin to be driven from an output pin on the microcontroller. If not used then tie the LDAC pin to GND to allow the DAC to function. | |
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− | + | | width="10%" align="center" style="background-color:#EAE1EA;" | [[File:Fc9-conn-icon.png]] | |
− | + | | width="90%" style="background-color:#EAE1EA; color:#4B008D;" | Simulation | |
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− | + | | width="10%" align="center" | [[File:Fc9-type-7-icon.png]] | |
− | + | | width="90%" | Simulation Comms | |
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− | + | | colspan="2" | | |
− | + | |} | |
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Latest revision as of 13:09, 7 February 2023
Author | Matrix TSL |
Version | 1.0 |
Category | Analog Output |
Contents
DAC Quad (MCP4728) component
Component to drive a quad digital to analogue converter (DAC) IC from Microchip via an I2C interface. Compatible with MCP4728 (12-Bit) devices.
Component Source Code
Please click here to download the component source project: FC_Comp_Source_DAC_MCP4728.fcfx
Please click here to view the component source code (Beta): FC_Comp_Source_DAC_MCP4728.fcfx
Detailed description
No detailed description exists yet for this component
Examples
No additional examples
Macro reference
ControlPins
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ControlPins |
Allows Shutdown (SHDN) and Latch (LDAC) pins to be controlled directly if enabled. | |
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Latch |
0 = Data output driven from DAC register, 1 = Data output locked | |
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Return |
Disable
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Disable |
Disables the DAC output. | |
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Channel |
Range: 0-3 / 0=DAC Channel 0 / 1=DAC Channel 1 ... | |
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Return |
Enable
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Enable |
Enables the DAC Output. | |
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Channel |
Range: 0-3 / 0=DAC Channel 0 / 1=DAC Channel 1 ... | |
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Return |
Initialise
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Initialise |
Configures the SPI peripheral ready for communications and initialises the internal variables. DAC needs to be enabled before any output voltage can be generated. | |
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Return |
SetDeviceAddress
SetInitialEEOutput
SetOutput
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SetOutput |
Sets the output voltage of the DAC 12-Bit: Range 0-4095 | |
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Channel |
Range: 0-3 / 0=DAC Channel 0 / 1=DAC Channel 1 ... | |
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DAC_Value |
The value to output to the DAC | |
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Return |