Component: DAC Dual (MCP49x2) (Analog Output): Difference between revisions
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| width="20%" style="color: gray;" | Author | | width="20%" style="color:gray;" | Author | ||
| Matrix TSL | | Matrix TSL | ||
|- | |- | ||
| width="20%" style="color: gray;" | Version | | width="20%" style="color:gray;" | Version | ||
| 1.0 | | 1.0 | ||
|- | |- | ||
| width="20%" style="color: gray;" | Category | | width="20%" style="color:gray;" | Category | ||
| Analog Output | | Analog Output | ||
|} | |} | ||
==DAC Dual component== | |||
Component to drive a dual digital to analogue converter (DAC) IC from Microchip via an SPI interface. Compatible with MCP4902 (8-Bit), MCP4912 (10-Bit) and MCP4922 (12-Bit) devices. | |||
==Detailed description== | |||
''No detailed description exists yet for this component'' | |||
==Examples== | ==Examples== | ||
''<span style="color:red;">No additional examples</span>'' | ''<span style="color:red;">No additional examples</span>'' | ||
| Line 25: | Line 27: | ||
==Downloadable macro reference== | ==Downloadable macro reference== | ||
=== | {| class="wikitable" style="width:60%; background-color:#FFFFFF;" | ||
Sets the output voltage of the DAC | |- | ||
| 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 8-Bit: Range 0-255 10-Bit: Range 0-1023 12-Bit: Range 0-4095 | |||
|- | |||
|- | |||
| width="10%" align="center" | [[File:Fc9-u8-icon.png]] - BYTE | |||
| width="90%" | Channel | |||
|- | |||
| colspan="2" | 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'' | |||
|} | |||
10- | {| 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:]] - | |||
| width="90%" | Shutdown | |||
|- | |||
| colspan="2" | 0 = Shutdown Device, 1 = Device Active | |||
|- | |||
| width="10%" align="center" | [[File:]] - | |||
| 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'' | |||
|} | |||
''' | {| 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" | 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'' | |||
|} | |||
:[[ | {| 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" | 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'' | |||
|} | |||
'''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. | |||
|- | |||
|- | |||
| 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. | |||
|- | |||
|- | |||
| 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;" | '''WriteLEDs''' | |||
|- | |||
: | | colspan="2" | Allows control of all 8-LEDs on the front of the Formula Flowcode. | ||
: | |- | ||
|- | |||
| width="10%" align="center" | [[File:Fc9-u8-icon.png]] - BYTE | |||
| width="90%" | LED_Byte | |||
|- | |||
| colspan="2" | | |||
|- | |||
| 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" | Starts up the formula flowcode PWM for motor control and performs the wait for button press | |||
|- | |||
|- | |||
| 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== | ==Property reference== | ||
{| class="wikitable" style="width:60%; background-color:#FFFFFF;" | |||
|- | |||
Selects which DAC IC is connected and therefore the bit depth available. | | 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%" | DAC IC | |||
Selects the maximum reference value for the DAC | |- | ||
| colspan="2" | Selects which DAC IC is connected and therefore the bit depth available. | |||
|- | |||
| width="10%" align="center" | [[File:Fc9-type-16-icon.png]] | |||
| width="90%" | Gain Option | |||
|- | |||
Reference Voltage, Used to calculate the Voltage resolution. | | colspan="2" | Selects the maximum reference value for the DAC | ||
|- | |||
| width="10%" align="center" | [[File:Fc9-type-15-icon.png]] | |||
| width="90%" | Vref Pin Voltage | |||
|- | |||
| colspan="2" | The reference voltage applied to the VREF pin. | |||
Number of discrete output states available from the DAC. | |- | ||
| width="10%" align="center" | [[File:Fc9-type-15-icon.png]] | |||
| width="90%" | Vref Voltage | |||
|- | |||
| colspan="2" | Reference Voltage, Used to calculate the Voltage resolution. | |||
|- | |||
Number of digital control bits | | 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]] | |||
Maximum output resolution based on number of control bits. | | width="90%" | Control Bits | ||
|- | |||
| colspan="2" | Number of digital control bits | |||
|- | |||
| width="10%" align="center" | [[File:Fc9-type-10-icon.png]] | |||
| width="90%" | Resolution | |||
Specifies the Resolution per digital bit in terms of Voltage. | |- | ||
| colspan="2" | Maximum output resolution based on number of control bits. | |||
|- | |||
| width="10%" align="center" | [[File:Fc9-type-15-icon.png]] | |||
| width="90%" | Voltage Resolution | |||
|- | |||
SPI Channel selector | | colspan="2" | Specifies the Resolution per digital bit in terms of Voltage. | ||
|- | |||
| width="10%" align="center" | [[File:Fc9-type-16-icon.png]] | |||
| width="90%" | Channel | |||
|- | |||
| colspan="2" | SPI Channel selector | |||
Prescale option selector | |- | ||
| width="10%" align="center" | [[File:Fc9-type-16-icon.png]] | |||
| width="90%" | Prescale | |||
|- | |||
| colspan="2" | Prescale option selector | |||
|- | |||
SPI Data Out Pin SDO - Also Known as Master Out Slave In (MOSI) when used in Master mode. | | width="10%" align="center" | [[File:Fc9-type-5-icon.png]] | ||
| width="90%" | MOSI | |||
|- | |||
| colspan="2" | SPI Data Out Pin SDO - Also Known as Master Out Slave In (MOSI) when used in Master mode. | |||
|- | |||
| width="10%" align="center" | [[File:Fc9-type-5-icon.png]] | |||
SPI Data In Pin SDI - Also Known as Master In Slave Out (MISO) when used in Master mode. | | width="90%" | MISO | ||
|- | |||
| colspan="2" | SPI Data In Pin SDI - Also Known as Master In Slave Out (MISO) when used in Master mode. | |||
|- | |||
| width="10%" align="center" | [[File:Fc9-type-5-icon.png]] | |||
| width="90%" | CLK | |||
SPI Clock Pin CLK - The Clock signal is driven by the SPI master. | |- | ||
| colspan="2" | SPI Clock Pin CLK - The Clock signal is driven by the SPI master. | |||
|- | |||
| width="10%" align="center" | [[File:Fc9-type-5-icon.png]] | |||
| width="90%" | CS / SS | |||
|- | |||
Chip Select / Slave Select Pin | | colspan="2" | Chip Select / Slave Select Pin Master Mode: General purpose output pin used to select the remote SPI device. Slave Mode: Hardware chip select pin input used to select the SPI device. | ||
|- | |||
Master Mode: General purpose output pin used to select the remote SPI device. | | width="10%" align="center" | [[File:Fc9-type-7-icon.png]] | ||
| width="90%" | Use SHDN Pin | |||
Slave Mode: Hardware chip select pin input used to select the SPI device. | |- | ||
| colspan="2" | Allows the SHDN pin to be driven from an output pin on the microcontroller. If not used then tie the SHDN pin to VCC to allow the DAC to function. | |||
|- | |||
| width="10%" align="center" | [[File:Fc9-type-7-icon.png]] | |||
| width="90%" | Use LDAC Pin | |||
|- | |||
Allows the SHDN pin to be driven from an output pin on the microcontroller. | | 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. | ||
|- | |||
If not used then tie the SHDN pin to VCC to allow the DAC to function. | | width="10%" align="center" style="background-color:#D8C9D8;" | [[File:Fc9-conn-icon.png]] | ||
| width="90%" style="background-color:#D8C9D8; color:#4B008D;" | '''Connections''' | |||
|- | |||
|- | |||
| width="10%" align="center" style="background-color:#D8C9D8;" | [[File:Fc9-conn-icon.png]] | |||
| width="90%" style="background-color:#D8C9D8; color:#4B008D;" | '''Simulations''' | |||
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. | | width="10%" align="center" | [[File:Fc9-type-7-icon.png]] | ||
| width="90%" | Simulate Comms | |||
|- | |||
| colspan="2" | | |||
|- | |||
| width="10%" align="center" | [[File:Fc9-type-7-icon.png]] | |||
Selects if the scope traces are automatically generated or not | | width="90%" | DAC Output Scope Traces | ||
|- | |||
| colspan="2" | Selects if the scope traces are automatically generated or not | |||
|- | |||
| width="10%" align="center" | [[File:Fc9-type-7-icon.png]] | |||
| width="90%" | SPI Scope Traces | |||
Selects if the scope traces are automatically generated or not | |- | ||
| colspan="2" | Selects if the scope traces are automatically generated or not | |||
|- | |||
| width="10%" align="center" | [[File:Fc9-type-7-icon.png]] | |||
| width="90%" | SPI Console Data | |||
|- | |||
Selects if the console data is automatically generated or not | | colspan="2" | Selects if the console data is automatically generated or not | ||
|- | |||
| width="10%" align="center" | [[File:Fc9-type-16-icon.png]] | |||
| width="90%" | API | |||
|- | |||
| colspan="2" | | |||
|} | |||
Revision as of 21:05, 16 November 2021
| Author | Matrix TSL |
| Version | 1.0 |
| Category | Analog Output |
DAC Dual component
Component to drive a dual digital to analogue converter (DAC) IC from Microchip via an SPI interface. Compatible with MCP4902 (8-Bit), MCP4912 (10-Bit) and MCP4922 (12-Bit) devices.
Detailed description
No detailed description exists yet for this component
Examples
No additional examples
Downloadable macro reference
| Disable | |
| Disables the DAC output. | |
| Channel | |
| 0=DAC Channel 0 , 1=DAC Channel 1 | |
| Return | |
| Enable | |
| Enables the DAC Output. | |
| Channel | |
| 0=DAC Channel 0 , 1=DAC Channel 1 | |
| Return | |
| 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. | |
| Return | |
| 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. | |
| Return | |
| WriteLEDs | |
| Allows control of all 8-LEDs on the front of the Formula Flowcode. | |
| LED_Byte | |
| Return | |
| Initialise | |
| Starts up the formula flowcode PWM for motor control and performs the wait for button press | |
| Return | |