C281x GPIO Digital Input
General-purpose I/O pins for digital input
C2000™ Microcontroller Blockset/ F28004x
This block configures the general-purpose I/O (GPIO) registers that control the GPIO shared pins for digital input. Each I/O port has one MUX register, which is used to select peripheral operation or digital I/O operation.
To avoid losing new settings, click Apply before changing the IO Port parameter.
- IO Port
Select the input/output port to use:
GPIOPGand select the I/O Port bits to enable for digital input. (There is no GPIOPC port on the C281x.) If you select multiple bits, vector input is expected. Cleared bits are available for peripheral functionality. Multiple GPIO DI blocks cannot share the same I/O port.
The input function of the digital I/O and the input path to the related peripheral are enabled on the board. If you configure a pin as digital I/O, the corresponding peripheral function cannot be used.
The following tables show the shared pins.
GPIO A MUX
GPIO B MUX
- Sample time
Time interval, in seconds, between consecutive input from the pins.
- Data type
Data type of the data to obtain from the GPIO pins. The data is read as 16-bit integer data and then cast to the selected data type. Valid data types are
The width of the vectorized data output by this block is determined by the number of bits selected in the Block Parameters dialog box.