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| width="20%" style="color:gray;" | Author
| Matrix TSL
| Matrix TSL
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| width="20%" style="color:gray;" | Version
| 1.0 (Release)
| 1.0
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| width="20%" style="color:gray;" | Category
| Analog Input
| Analog Input
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==ADC (AD7680) component==
==[[File:Component Icon 937e425e_21c0_4b08_8d8f_0bf80a6391d2.png|Image]] ADC (AD7680) component==
16-bit external ADC connected to the microcontroller using SPI.
16-bit external ADC connected to the microcontroller using SPI.


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


===Overview===
Please click here to download the component source project: [https://www.flowcode.co.uk/wiki/componentsource/FC_Comp_Source_ExternalADC_AD7680.fcfx FC_Comp_Source_ExternalADC_AD7680.fcfx]
The AD7680 is a 2.5V to 5.5V general purpose SPI compatible, successive
approximation analogue to digital converter (ADC).  
The reference for the AD7680 is taken internally from VDD
Pin reference from the datasheet:


[[AD7680 Pin Reference.png]]
Please click here to view the component source code (Beta): [https://www.flowcode.co.uk/FlowchartView/?wfile=componentsource/FC_Comp_Source_ExternalADC_AD7680.fcfx FC_Comp_Source_ExternalADC_AD7680.fcfx]


==Examples==
==Detailed description==


This example reads the voltage on the AD7680 Vin and converts the ADC results into a voltage.
For the result to be correct, you must change the Voltage variable to match the supply voltage.


{{Fcfile|AD7680 Demo.fcfx|AD7680 Demo}}
==Circuit Diagram==
[[AD7680 Circuit Diagram.png]]






==Downloadable macro reference==


===<span style="font-weight: normal;"><u><tt>SampleADC</tt></u></span>===
Reads the ADC and returns the reading as an unsigned 16-bit value.


Range: 0-65535 / 0=0V / 65535=VCC


'''Parameters'''


:''This macro has no parameters''




'''Return value'''


:[[Variable Types|UINT]]




===<span style="font-weight: normal;"><u><tt>Initialise</tt></u></span>===
Initialise the SPI bus ready for communications,


'''Parameters'''


:''This macro has no parameters''




'''Return value'''


:''This call does not return a value''






==Simulation macro reference==


''This component does not contain any simulation macros''




==Property reference==
<span style="font-weight: normal;"><u>Channel</u></span>


This property is of type ''Fixed list of ints'' and can be referenced with the variable name ''cal_spi1::CHANNEL''.


SPI Channel selector
===Overview===
The AD7680 is a 2.5V to 5.5V  SPI compatible, successive
approximation analogue to digital converter (ADC).


<span style="font-weight: normal;"><u>Prescale</u></span>
The reference for the AD7680 is taken internally from VDD


This property is of type ''Fixed list of ints'' and can be referenced with the variable name ''cal_spi1::PR_SCALE''.


Prescale option selector
Pin reference from the datasheet:


<span style="font-weight: normal;"><u>MOSI</u></span>
[[File:AD7680 Pin Reference.png]]


This property is of type ''Single digital pin'' and can be referenced with the variable name ''cal_spi1::MOSI''.
==Examples==


SPI Data Out Pin SDO - Also Known as Master Out Slave In (MOSI) when used in Master mode.
This example reads the voltage on the AD7680 Vin and converts the ADC results into a voltage.
For the result to be correct, you must change the Voltage variable to match the supply voltage.


<span style="font-weight: normal;"><u>MISO</u></span>
{{Fcfile|AD7680 Demo.fcfx|AD7680 Demo}}


This property is of type ''Single digital pin'' and can be referenced with the variable name ''cal_spi1::MISO''.
==Circuit Diagram==
[[File:AD7680 Circuit Diagram.png]]


SPI Data In Pin SDI - Also Known as Master In Slave Out (MISO) when used in Master mode.


<span style="font-weight: normal;"><u>CLK</u></span>


This property is of type ''Single digital pin'' and can be referenced with the variable name ''cal_spi1::CLK''.


SPI Clock Pin CLK - The Clock signal is driven by the SPI master.


<span style="font-weight: normal;"><u>CS / SS</u></span>


This property is of type ''Single digital pin'' and can be referenced with the variable name ''cal_spi1::SS''.


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.


<span style="font-weight: normal;"><u>Simulate Comms</u></span>


This property is of type ''True or false'' and can be referenced with the variable name ''SimulateComms''.


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


==Macro reference==


===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" | Initialise the SPI bus ready for communications,&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''
|}


<span style="font-weight: normal;"><u>Console Data</u></span>


This property is of type ''True or false'' and can be referenced with the variable name ''cal_spi1::ConsoleData''.
===SampleADC===
{| 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;" | '''SampleADC'''
|-
| colspan="2" | Reads the ADC and returns the reading as an unsigned 16-bit value. Range: 0-65535 / 0=0V / 65535=VCC &nbsp;
|-
|-
| width="10%" align="center" style="border-top: 2px solid #000;" | [[File:Fc9-u16-icon.png]] - UINT
| width="90%" style="border-top: 2px solid #000;" | ''Return''
|}


Selects if the console data is automatically generated or not


<span style="font-weight: normal;"><u>Scope Traces</u></span>
==Property reference==


This property is of type ''True or false'' and can be referenced with the variable name ''cal_spi1::ScopeTraces''.
{| class="wikitable" style="width:60%; background-color:#FFFFFF;"
 
|-
Selects if the scope traces are automatically generated or not
| width="10%" align="center" style="background-color:#D8C9D8;" | [[File:Fc9-prop-icon.png]]
 
| width="90%" style="background-color:#D8C9D8; color:#4B008D;" | '''Properties'''  
<span style="font-weight: normal;"><u>Injector</u></span>
|-
 
|-
This property is of type ''Fixed list of ints'' and can be referenced with the variable name ''cal_spi1::Injector''.
| width="10%" align="center" style="background-color:#EAE1EA;" | [[File:Fc9-conn-icon.png]]
 
| width="90%" style="background-color:#EAE1EA; color:#4B008D;" | SPI Properties
''<span style="color:red;">No additional information</span>''
|-
|-
| width="10%" align="center" | [[File:Fc9-type-16-icon.png]]
| width="90%" | Channel
|-
| colspan="2" | SPI Channel selector&nbsp;
|-
| width="10%" align="center" | [[File:Fc9-type-16-icon.png]]
| width="90%" | Prescale
|-
| colspan="2" | Prescale option selector&nbsp;
|-
| 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.&nbsp;
|-
| width="10%" align="center" | [[File:Fc9-type-5-icon.png]]
| width="90%" | MISO
|-
| colspan="2" | SPI Data In Pin SDI - Also Known as Master In Slave Out (MISO) when used in Master mode.&nbsp;
|-
| width="10%" align="center" | [[File:Fc9-type-5-icon.png]]
| width="90%" | CLK
|-
| colspan="2" | SPI Clock Pin CLK - The Clock signal is driven by the SPI master.&nbsp;
|-
| width="10%" align="center" | [[File:Fc9-type-5-icon.png]]
| width="90%" | CS / SS
|-
| 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. &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%" | Data Recorder Trace
|-
| colspan="2" | &nbsp;
|-
| width="10%" align="center" | [[File:Fc9-type-7-icon.png]]
| width="90%" | Simulate Comms
|-
| colspan="2" | &nbsp;
|}

Latest revision as of 21:04, 23 December 2025

Author Matrix TSL
Version 1.0
Category Analog Input


ADC (AD7680) component

16-bit external ADC connected to the microcontroller using SPI.

Component Source Code

Please click here to download the component source project: FC_Comp_Source_ExternalADC_AD7680.fcfx

Please click here to view the component source code (Beta): FC_Comp_Source_ExternalADC_AD7680.fcfx

Detailed description

Overview

The AD7680 is a 2.5V to 5.5V SPI compatible, successive approximation analogue to digital converter (ADC).

The reference for the AD7680 is taken internally from VDD


Pin reference from the datasheet:

Examples

This example reads the voltage on the AD7680 Vin and converts the ADC results into a voltage. For the result to be correct, you must change the Voltage variable to match the supply voltage.

AD7680 Demo

Circuit Diagram







Macro reference

Initialise

Initialise
Initialise the SPI bus ready for communications, 
- VOID Return


SampleADC

SampleADC
Reads the ADC and returns the reading as an unsigned 16-bit value. Range: 0-65535 / 0=0V / 65535=VCC  
- UINT Return


Property reference

Properties
SPI Properties
Channel
SPI Channel selector 
Prescale
Prescale option selector 
MOSI
SPI Data Out Pin SDO - Also Known as Master Out Slave In (MOSI) when used in Master mode. 
MISO
SPI Data In Pin SDI - Also Known as Master In Slave Out (MISO) when used in Master mode. 
CLK
SPI Clock Pin CLK - The Clock signal is driven by the SPI master. 
CS / SS
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.  
Simulation
Data Recorder Trace
 
Simulate Comms
 
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