C280x/C2802x/C2803x/C28x3x/c2834x GPIO Digital Output - Configure general-purpose input/output pins as digital outputs

Library

Embedded Coder/ Embedded Targets/ Processors/ Texas Instruments C2000/ C2802x

Embedded Coder/ Embedded Targets/ Processors/ Texas Instruments C2000/ C2803x

Embedded Coder/ Embedded Targets/ Processors/ Texas Instruments C2000/ C280x

Embedded Coder/ Embedded Targets/ Processors/ Texas Instruments C2000/ C28x3x

Embedded Coder/ Embedded Targets/ Processors/ Texas Instruments C2000/ C2834x

Description

Configure individual general-purpose input/output (GPIO) pins to operate as digital outputs. When a pin is configured for digital output, it cannot operate as a digital input or connect to peripheral I/O signals. When you select a pin for digital output, the user interface presents a Toggle option that inverts the output signal on the pin.

Each processor has a different number of available GPIO pins:

• C280x has 35 GPIO pins

• C2802x has 22 GPIO pins, even though GPIO group lists 35

• C2803x has 45 GPIO pins

• C28x3x has 64 GPIO pins

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

Dialog Box

The dialog boxes for the C2802x and C28x3x processors are similar to that of the C280x, shown in the preceding figure.

GPIO Group

Select the group of GPIO pins you want to view or configure.

GPIO pins for output

To configure a GPIO pin for digital output, select the checkbox next to it. Refer to the block for a table of all available peripherals for each pin.

A value of True at the input of the block drives the selected GPIO pin high. A value of False at the input of the block grounds the selected GPIO pin.

Toggle GPIO[bit#]

For each pin selected for output, you can elect to toggle the signal of that pin. In Toggle mode, a value of True at the input of the block switches the GPIO pin output level. Thus, if the GPIO pin was driven high, in Toggle mode, with the value of True at the input, the pin output level is driven low. If the GPIO pin was driven low, in Toggle mode, with the value of True at the input of the block, the same pin output level is driven high. If the input of the block is False, there is no effect on the GPIO pin output level.

Note   The outputs of this block can be vectorized.

See Also

C280x/C2802x/C2803x/C28x3x/c2834x GPIO Digital Input

GPIO

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