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mikroSDK Library

USB-C Sink Click

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Author: MIKROE

Last Updated: 2024-10-31

Package Version: 2.1.0.13

mikroSDK Library: 2.0.0.0

Category: USB-C PD

Downloaded: 306 times

Not followed.

License: MIT license  

USB-C Sink Click is a compact add-on board that contains a standalone autonomous USB power delivery controller. This board features the STUSB4500, a USB-C sink-only controller compatible with Power-Delivery (PD) from STMicroelectronics. It supports dead battery mode to allow a system to be powered from an external source directly, establishes a valid source-to-sink connection, and negotiates a USB power delivery (PD) contract with a PD capable source device.

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  • mikroSDK Library 1.0.0.0
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mikroSDK Library Blog


USB-C Sink Click

USB-C Sink Click is a compact add-on board that contains a standalone autonomous USB power delivery controller. This board features the STUSB4500, a USB-C sink-only controller compatible with Power-Delivery (PD) from STMicroelectronics. It supports dead battery mode to allow a system to be powered from an external source directly, establishes a valid source-to-sink connection, and negotiates a USB power delivery (PD) contract with a PD capable source device.

usbcsink_click.png

Click Product page


Click library

  • Author : Stefan Ilic
  • Date : Aug 2021.
  • Type : I2C type

Software Support

We provide a library for the USBCSink 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 USBCSink Click driver.

Standard key functions :

  • usbcsink_cfg_setup Config Object Initialization function.

    void usbcsink_cfg_setup ( usbcsink_cfg_t *cfg );
  • usbcsink_init Initialization function.

    err_t usbcsink_init ( usbcsink_t *ctx, usbcsink_cfg_t *cfg );

Example key functions :

  • usbcsink_hw_reset HW reset function.

    void usbcsink_hw_reset ( usbcsink_t *ctx );
  • usbcsink_get_pdo2 Get PO2 pin state function.

    uint8_t usbcsink_get_pdo2 ( usbcsink_t *ctx );
  • usbcsink_write_byte Write byte function.

    void usbcsink_write_byte ( usbcsink_t *ctx, uint8_t reg, uint8_t tx_data );

Example Description

This is an example which demonstrates the use of USB-C Sink Click board.

The demo application is composed of two sections :

Application Init

Initialization driver enables - I2C, set hw reset, set PDO2 profile and current value for PDO2 1.5A, upload new data and reset device to write NVM settings to the STUSB450, also write log.


void application_init ( void ) {
    log_cfg_t log_cfg;  /**< Logger config object. */
    usbcsink_cfg_t usbcsink_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.
    usbcsink_cfg_setup( &usbcsink_cfg );
    USBCSINK_MAP_MIKROBUS( usbcsink_cfg, MIKROBUS_1 );
    err_t init_flag = usbcsink_init( &usbcsink, &usbcsink_cfg );
    if ( I2C_MASTER_ERROR == init_flag ) {
        log_error( &logger, " Application Init Error. " );
        log_info( &logger, " Please, run program again... " );

        for ( ; ; );
    }

    usbcsink_hw_reset( &usbcsink );
    Delay_ms ( 1000 );

    usbcsink_set_pdo_num( USBCSINK_SET_PDO_2 );
    usbcsink_set_current( USBCSINK_SET_PDO_2, 1.5 );

    sel_profile = usbcsink_get_pdo_num( );
    log_printf( &logger , "- - - - - - - - - - - - \r\n" );
    log_printf( &logger , "   Setting PDO ~ PDO%d \r\n", ( uint16_t ) sel_profile );
    log_printf( &logger , "- - - - - - - - - - - - \r\n" );

    usbcsink_upload_new_data( &usbcsink, USBCSINK_UPLOAD_NEW_DATA_VAL );
    Delay_ms ( 1000 );

    usbcsink_hw_reset( &usbcsink );
    Delay_ms ( 1000 );

    log_info( &logger, " Application Task " );
}

Application Task

USB-C Sink Click board can be used to read the Power Data Objects (PDO) highest priority profile: PDO1 : 5V, PDO2 : 12V, PDO3 : 20V. All data logs write on USB uart changes for every 5 sec.


void application_task ( void ) {
    usbcsink_load_data( &usbcsink );

    log_printf( &logger , "     New Parameters     \r\n" );
    log_printf( &logger , "------------------------\r\n" );

    sel_profile = usbcsink_get_pdo_num( );

    log_printf( &logger , "    PDO Number ~ PDO%d\r\n", ( uint16_t ) sel_profile );
    log_printf( &logger , "- - - - - - - - - - - - \r\n" );

    demo_data = usbcsink_get_voltage( sel_profile );
    log_printf( &logger , " Voltage : %.2f V\r\n", demo_data );

    demo_data = usbcsink_get_current( sel_profile );
    log_printf( &logger , " Current :  %.2f A\r\n", demo_data );

    log_printf( &logger , "------------------------\r\n" );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
}

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.USBCSink

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. UART terminal is available in all MikroElektronika compilers.


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