C28x GPIO Digital Input

Configure general-purpose input/output pins as digital input

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Libraries:
C2000 Microcontroller Blockset / C2802x
C2000 Microcontroller Blockset / C2803x
C2000 Microcontroller Blockset / C2805x
C2000 Microcontroller Blockset / C2806x
C2000 Microcontroller Blockset / C280x
C2000 Microcontroller Blockset / C281x
C2000 Microcontroller Blockset / C2833x
C2000 Microcontroller Blockset / C2834x
C2000 Microcontroller Blockset / F280013x
C2000 Microcontroller Blockset / F280015x
C2000 Microcontroller Blockset / F28002x
C2000 Microcontroller Blockset / F28003x
C2000 Microcontroller Blockset / F28004x
C2000 Microcontroller Blockset / F2807x
C2000 Microcontroller Blockset / F2837xD
C2000 Microcontroller Blockset / F2837xS
C2000 Microcontroller Blockset / F2838x / C28x
C2000 Microcontroller Blockset / F2838x / M4
C2000 Microcontroller Blockset / F28M35x / C28x
C2000 Microcontroller Blockset / F28M35x / M3
C2000 Microcontroller Blockset / F28M36x / C28x
C2000 Microcontroller Blockset / F28M36x / M3
C2000 Microcontroller Blockset / F28p65x
C2000 Microcontroller Blockset / F28p55x
Simulink Support Package for Arduino Hardware / Common

Description

This block configures the general-purpose I/O (GPIO) MUX registers that control the operation of GPIO shared pins for digital input. Each I/O port has one MUX register that selects peripheral operation or digital I/O operation (the default). When a pin is configured for digital input, it becomes unavailable for digital output or peripheral operation. You can configure the Input qualification type for individual digital input pins. To configure, go to Configuration Parameters > Hardware Implementation > Target Hardware Resources and select the appropriate GPIO group.

Each processor has a different number of available GPIO pins.

Note

To avoid losing new settings, click Apply before changing the GPIO Group parameter.

Ports

Output

Pin # — GPIO pin status

scalar | vector

The port outputs the status of the digital pin you select in the GPIO Group parameter.

Parameters

GPIO Group — GPIO pins you want to configure

GPIO0-GPIO7 (default) | GPIO8-GPIO15GPIO16-GPIO23…

Select the group of GPIO pins you want to view or configure. For a table of GPIO pins and peripherals, refer to the Texas Instruments documentation for your specific target.

Sample time — Frequency at which block reads input pin values

-1 (default) | 0.1

Specify how often the block receives message, in seconds. When you specify this parameter as -1, Simulink determines the best sample time for the block based on the block context within the model.

For more information, refer to the section on Specify Sample Time.

Data type — Data type of GPIO input

auto (default) | unit8 | double | single | int8 | int16 | uint16 | int32 | uint32 | boolean

Specify the data type of the input. The input is read as 16-bit integer, and then cast to the selected data type.

Version History

Introduced in R2016a