Component: Input ADC (DSP)
| Author | Matrix Ltd |
| Version | 1.2 (Release) |
| Category | DSP |
Contents
Input ADC component
Allows the values from a buffer to be assigned driectly from an analog enabled pin. Either a single sample at a time or a number of samples. Auto scales the digital value to fill the entire range of the specified buffer type.
Examples
Some examples containing the Input ADC component.
Downloadable macro reference
AddSample
Adds a single ADC sample to the current location in the specified buffer.
If Auto Scale is enabled then the sample will be scaled to correctly fit inside the buffer.
Auto increments current location.
Parameters
- This macro has no parameters
Return value
- This call does not return a value
AddSampleArray
Adds a single ADC sample to the current location in the specified buffer.
If Auto Scale is enabled then the sample will be scaled to correctly fit inside the buffer.
Auto increments current location.
Parameters
- UINT SampleDelay
- Number of us in between each sample.
Return value
- This call does not return a value
Simulation macro reference
This component does not contain any simulation macros
Property reference
Buffer Size
This property is of type Unsigned integer and can be referenced with the variable name BuffSize.
Number of individual elements the buffer can store, default 1.
Buffer Type
This property is of type Fixed list of ints and can be referenced with the variable name BuffType.
Sets the buffer data type, data is automatically scaled to fit and make full use of the data type.
Channel
This property is of type Single analog pin and can be referenced with the variable name adc_base1::channel.
Analogue Input Channel - Which pin is the analogue input connected to?
VRef option
This property is of type Fixed list of ints and can be referenced with the variable name adc_base1::vrefop.
Defines what is used as the ADC maximum reference. ADC Range = GND to VRef Voltage
VDD - Defines the microcontrollers power supply pin as the max reference,
VREF+ Pin - Dedicated pin on the microcontroller to allow for a variable reference voltage.
Conversion speed
This property is of type Fixed list of ints and can be referenced with the variable name adc_base1::convspd.
Clock setting to select how fast the ADC peripheral will perform an ADC conversion.
The FRC setting is based on a RC time base and so will vary with temperature and pressure.
Other settings are generally based on divisions of the master clock.
Acquisition cycles
This property is of type Signed integer and can be referenced with the variable name adc_base1::actime.
Number of micro seconds to wait for the ADC input to charge before starting the analogue sample.
Bit Depth
This property is of type Signed integer and can be referenced with the variable name adc_base1::bits.
Maximum number of digital bits the ADC can sample.
8 bit = ADC range 0 - 255
10 bit = ADC range 0 - 1023
12 bit = ADC range 0 - 4095
Scope Traces
This property is of type True or false and can be referenced with the variable name adc_base1::ScopeTraces.
Selects if the scope traces are automatically generated or not
