TOP Contributors

  1. MIKROE (2784 codes)
  2. Alcides Ramos (405 codes)
  3. Shawon Shahryiar (307 codes)
  4. jm_palomino (133 codes)
  5. Bugz Bensce (97 codes)
  6. S P (73 codes)
  7. dany (71 codes)
  8. MikroBUS.NET Team (35 codes)
  9. NART SCHINACKOW (34 codes)
  10. Armstrong Subero (27 codes)

Most Downloaded

  1. Timer Calculator (141696 times)
  2. FAT32 Library (74772 times)
  3. Network Ethernet Library (59209 times)
  4. USB Device Library (49225 times)
  5. Network WiFi Library (44996 times)
  6. FT800 Library (44530 times)
  7. GSM click (31196 times)
  8. mikroSDK (30100 times)
  9. microSD click (27580 times)
  10. PID Library (27539 times)
Libstock prefers package manager

Package Manager

We strongly encourage users to use Package manager for sharing their code on Libstock website, because it boosts your efficiency and leaves the end user with no room for error. [more info]

< Back
mikroSDK Library

Expand 8 Click

Rating:

0

Author: MIKROE

Last Updated: 2024-10-31

Package Version: 2.1.0.14

mikroSDK Library: 2.0.0.0

Category: Port expander

Downloaded: 324 times

Not followed.

License: MIT license  

Expand 8 Click is a compact add-on board that contains a multi-port I/O expander with bi-directional input/outputs. This board features the MAX7317, 10-Port SPI-interfaced I/O expander with overvoltage and hot-insertion protection from Maxim Integrated.

No Abuse Reported

Do you want to subscribe in order to receive notifications regarding "Expand 8 Click" changes.

Do you want to unsubscribe in order to stop receiving notifications regarding "Expand 8 Click" changes.

Do you want to report abuse regarding "Expand 8 Click".

  • mikroSDK Library 1.0.0.0
  • Comments (0)

mikroSDK Library Blog


Expand 8 Click

Expand 8 Click is a compact add-on board that contains a multi-port I/O expander with bi-directional input/outputs. This board features the MAX7317, 10-Port SPI-interfaced I/O expander with overvoltage and hot-insertion protection from Maxim Integrated.

expand8_click.png

Click Product page


Click library

  • Author : Stefan Ilic
  • Date : Oct 2021.
  • Type : SPI type

Software Support

We provide a library for the Expand8 Click as well as a demo application (example), developed using MikroElektronika compilers. The demo can run on all the main MikroElektronika development boards.

Package can be downloaded/installed directly from NECTO Studio Package Manager(recommended way), downloaded from our LibStock™ or found on Mikroe github account.

Library Description

This library contains API for Expand8 Click driver.

Standard key functions :

  • expand8_cfg_setup Config Object Initialization function.

    void expand8_cfg_setup ( expand8_cfg_t *cfg );
  • expand8_init Initialization function.

    err_t expand8_init ( expand8_t *ctx, expand8_cfg_t *cfg );

Example key functions :

  • expand8_write_data Generic write data function.

    void expand8_write_data ( expand8_t *ctx, uint8_t addr, uint8_t tx_data );
  • expand8_read_data Generic read data function.

    uint8_t expand8_read_data ( expand8_t *ctx, uint8_t addr );
  • expand8_set_port Set port function.

    err_t expand8_set_port ( expand8_t *ctx, uint8_t sel_port, uint8_t sel_imped );

Example Description

This is an example that demonstrates the use of the Expand 8 Click board.

The demo application is composed of two sections :

Application Init

Initialization driver enables - SPI, also write log.


void application_init ( void )
{
    log_cfg_t log_cfg;  /**< Logger config object. */
    expand8_cfg_t expand8_cfg;  /**< 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 @b LOG_MAP_USB_UART macro definition for detailed explanation.
     */
    LOG_MAP_USB_UART( log_cfg );
    log_init( &logger, &log_cfg );
    log_info( &logger, " Application Init " );

    // Click initialization.

    expand8_cfg_setup( &expand8_cfg );
    EXPAND8_MAP_MIKROBUS( expand8_cfg, MIKROBUS_1 );
    err_t init_flag  = expand8_init( &expand8, &expand8_cfg );
    if ( SPI_MASTER_ERROR == init_flag ) {
        log_error( &logger, " Application Init Error. " );
        log_info( &logger, " Please, run program again... " );

        for ( ; ; );
    }

    log_info( &logger, " Application Task " );
    select_port = EXPAND8_ADDR_OUT_LVL_PORT_P0;
    Delay_ms ( 100 );
}

Application Task

This example is working by toggling each of 10 available ports every 1 second. Results are being sent to the Uart Terminal where you can track their changes.


void application_task ( void )
{
    expand8_set_port( &expand8, select_port, EXPAND8_SET_LOW_IMPEDANCE );

    log_printf( &logger, "     Port P%d - ON\r\n", ( uint16_t ) select_port );
    log_printf( &logger, "- - - - - - - - - - -\r\n" );
    Delay_ms ( 1000 );

    expand8_set_port( &expand8, select_port, EXPAND8_SET_HIGH_IMPEDANCE );

    log_printf( &logger, "     Port P%d - OFF\r\n", ( uint16_t ) select_port );
    log_printf( &logger, "---------------------\r\n" );
    Delay_ms ( 1000 );

    select_port++;

    if ( select_port > EXPAND8_ADDR_OUT_LVL_PORT_P9 ) {
        select_port = EXPAND8_ADDR_OUT_LVL_PORT_P0;
    }
}

The full application code, and ready to use projects can be installed directly from NECTO Studio Package Manager(recommended way), downloaded from our LibStock™ or found on Mikroe github account.

Other Mikroe Libraries used in the example:

  • MikroSDK.Board
  • MikroSDK.Log
  • Click.Expand8

Additional notes and informations

Depending on the development board you are using, you may need USB UART Click, USB UART 2 Click or RS232 Click to connect to your PC, for development systems with no UART to USB interface available on the board. The terminal available in all MikroElektronika compilers, or any other terminal application of your choice, can be used to read the message.


ALSO FROM THIS AUTHOR

iButton click

5

iButton click - is an iButton probe Click board. The iButton is a technology based on the one-wire communication protocol, and a chip usually packed in a robust stainless steel casing.

[Learn More]

eINK 2.13 inch display

0

eINK Click is an adapter Click board™, used to interface a compatible eINK display with the host MCU.

[Learn More]

RTC 17 Click

0

RTC 17 Click is a compact add-on board that accurately keeps the time of a day. This board features the RV5C387A, a CMOS real-time clock with a built-in interrupt generation function from Nisshinbo Micro Devices Inc, to perform serial transmission of time and calendar data to the MCU. The BU9873 provides information like year, month, day, weekday, hours, minutes, and seconds based on a 32.768kHz quartz crystal through an I2C serial interface to transmit time and calendar data to the MCU. It also has an alarm function that outputs an interrupt signal to the MCU when the day of the week, hour, or minute matches with the preset time.

[Learn More]