Component: ADC (AD7680) (Analog Input)
| Author | Matrix TSL |
| Version | 1.0 (Release) |
| Category | Analog Input |
Contents
ADC (AD7680) component
16-bit external ADC connected to the microcontroller using SPI.
Detailed description
Overview
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:
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.
Circuit Diagram
Downloadable macro reference
SampleADC
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
Initialise
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
Channel
This property is of type Fixed list of ints and can be referenced with the variable name cal_spi1::CHANNEL.
SPI Channel selector
Prescale
This property is of type Fixed list of ints and can be referenced with the variable name cal_spi1::PR_SCALE.
Prescale option selector
MOSI
This property is of type Single digital pin and can be referenced with the variable name cal_spi1::MOSI.
SPI Data Out Pin SDO - Also Known as Master Out Slave In (MOSI) when used in Master mode.
MISO
This property is of type Single digital pin and can be referenced with the variable name cal_spi1::MISO.
SPI Data In Pin SDI - Also Known as Master In Slave Out (MISO) when used in Master mode.
CLK
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.
CS / SS
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.
Simulate Comms
This property is of type True or false and can be referenced with the variable name SimulateComms.
No additional information
Console Data
This property is of type True or false and can be referenced with the variable name cal_spi1::ConsoleData.
Selects if the console data is automatically generated or not
Scope Traces
This property is of type True or false and can be referenced with the variable name cal_spi1::ScopeTraces.
Selects if the scope traces are automatically generated or not
Injector
This property is of type Fixed list of ints and can be referenced with the variable name cal_spi1::Injector.
No additional information
