Expand 16 Click example. More...

#include "board.h"
#include "log.h"
#include "expand16.h"

Functions
void	application_init (void)

void	application_task (void)

int	main (void)

Detailed Description

Expand 16 Click example.

Description

This example demonstrates the use of Expand 16 click board by setting and reading the ports state.

The demo application is composed of two sections :

Application Init

Initializes the driver and performs the click default configuration which sets half of the pins as output ( GPIO4, GPIO5, GPIO6 and GPIO7 ) and the other half of the pins as inputs ( GPIO0, GPIO1, GPIO2 and GPIO3 ).

Application Task

Sets the state of the output pins and then reads the status of input pins and displays the results on the USB UART approximately 2 seconds.

Note: In order for this example to work as intended it is necessary to connect the input and output pins eg. GPIO0 and GPIO4, GPIO1 and GPIO5 etc. Floating input pins will be shown as a low state.

Additional Function

static void show_input_pin_state ( uint8_t pin_state )

Author: Stefan Ilic

Function Documentation

◆ application_init()

void application_init ( void )

< Logger config object.

< Click config object.

Logger initialization. Default baud rate: 115200 Default log level: LOG_LEVEL_DEBUG

Note: If USB_UART_RX and USB_UART_TX are defined as HAL_PIN_NC, you will need to define them manually for log to work. See LOG_MAP_USB_UART macro definition for detailed explanation.

◆ application_task()

void application_task ( void )

◆ main()

int main ( void )

Functions