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{| style="width:50%" |- | width="20%" style="color:gray;" | Author | Matrix TSL |- | width="20%" style="color:gray;" | Version | 1.0 |- | width="20%" style="color:gray;" | Category | 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== Please click here for the component source code: [https://www.flowcode.co.uk/wikicopy/componentsource/FC_Comp_Source_DAC_MCP4728.fcfx FC_Comp_Source_DAC_MCP4728.fcfx] ==Detailed description== ''No detailed description exists yet for this component'' ==Examples== ''<span style="color:red;">No additional examples</span>'' ==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-u8-icon.png]] - BYTE | width="90%" | Channel |- | colspan="2" | Range: 0-3 / 0=DAC Channel 0 / 1=DAC Channel 1 ...&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;" | '''ControlPins''' |- | colspan="2" | Allows Shutdown (SHDN) and Latch (LDAC) pins to be controlled directly if enabled.&nbsp; |- |- | 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&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;" | '''SetInitialEEOutput''' |- | colspan="2" | Stores a DAC value into EE memory to be used on power up.&nbsp; |- |- | 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 ...&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" | [[File:Fc9-u8-icon.png]] - BYTE | width="90%" | Channel |- | colspan="2" | Range: 0-3 / 0=DAC Channel 0 / 1=DAC Channel 1 ...&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" | [[File:Fc9-u8-icon.png]] - BYTE | width="90%" | Channel |- | colspan="2" | Range: 0-3 / 0=DAC Channel 0 / 1=DAC Channel 1 ...&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;" | '''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.&nbsp; |- |- | width="10%" align="center" | [[File:Fc9-u8-icon.png]] - BYTE | width="90%" | OldAddress |- | colspan="2" | Range: 0-7&nbsp; |- | width="10%" align="center" | [[File:Fc9-u8-icon.png]] - BYTE | width="90%" | NewAddress |- | colspan="2" | Range: 0-7&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 SPI 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%" | Pull Down Option |- | colspan="2" | &nbsp; |- | width="10%" align="center" | [[File:Fc9-type-16-icon.png]] | width="90%" | VREF Option |- | colspan="2" | &nbsp; |- | width="10%" align="center" | [[File:Fc9-type-16-icon.png]] | width="90%" | Gain Option |- | colspan="2" | Selects the maximum reference value for the DAC&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%" | Device Address |- | colspan="2" | &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-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" | [[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-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.&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%" | Simulation Comms |- | colspan="2" | &nbsp; |}

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