Analog System

Configure and use analog peripherals such as ADC, CMPSS, DAC, and more

Create Simulink^® models with the analog peripherals such as ADC, CMPSS, DAC, and more available on TI’s C2000™ microcontrollers. Configure the Simulink model to interface with supported target hardware using model configuration parameters. You can map tasks and peripherals in a model to hardware board configurations using Hardware Mapping tool. The blocks are processor specific and is not be available on all TI’s C2000 microcontrollers.

Blocks

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ADC

C281x ADC	Analog-to-digital converter (ADC)
C280x/C2833x ADC	Analog-to-digital converter (ADC)
C2802x/C2803x/C2805x/C2806x/F28M3x/F2807x/F2837xD/F2837xS/F2838x/F28004x/F2800xx ADC	Configure ADC to sample analog pins and output digital data

AnalogIO

C2802x/C2803x/C2806x/F28M3x AnalogIO Input	Configure pin, sample time, and data type for analog input
C2802x/C2803x/C2806x/F28M3x AnalogIO Output	Configure Analog IO to output analog signals on specific pins

CMPSS, COMP, DAC

F2807x/F2837xD/F2837xS/F28004x/F2838x/F2800xx CMPSS	Compare two input voltages on comparator pins (Since R2020a)
C2802x/C2803x/C2806x/F28M3x COMP	Compare two input voltages on comparator pins
F2807x/F2837xD/F2837xS/F28004x/F28003x/F2838x DAC	Configures the DAC to generate an analog output on the specified DAC channel A/B/C (12-bit)

Functions

c2000setup Launch C2000 Microcontroller Blockset hardware setup interface (Since R2023a)

Tools

Hardware Mapping

Map tasks and peripherals in a model to hardware board configurations (Since R2022b)

Model Settings

Model Configuration Parameters for Texas Instruments C2000 Processors

Model Configuration Parameters for Texas Instruments Concerto F28M3x (ARM Cortex-M3)

Topics

Configuring Acquisition Window Width for ADC Blocks
ADC blocks take a signal from an analog source and measure it with a digital device.

Featured Examples

ADC-PWM Synchronization Using ADC Interrupt

Use the ADC block to sample an analog voltage and use the PWM block to generate a pulse waveform. This example also shows how to use the Hardware Interrupt block to synchronize the change in the PWM duty cycle with analog to digital conversion of voltage. In the generated code, changes in the voltage of the ADC input alter the duty cycle of the PWM output. The period of the PWM waveform remains constant.

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Using Comparator Subsystem (CMPSS) for Voltage Compare

Use the Comparator Subsystem (CMPSS) to compare the analog voltage signals for Texas Instruments™ C2000™ processors and monitor the status output. Using this example, you can:

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Asynchronous Scheduling

Use the Texas Instruments™ C28x™ peripherals and Hardware Interrupt blocks to control the real-time execution of Simulink® function-call subsystems in an asynchronous fashion.

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