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mikroSDK Library

USB-C Sink 3 Click

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Author: MIKROE

Last Updated: 2024-10-31

Package Version: 2.1.0.8

mikroSDK Library: 2.0.0.0

Category: USB-C PD

Downloaded: 162 times

Not followed.

License: MIT license  

USB C Sink 3 Click is a compact add-on board with a standalone autonomous USB power delivery controller. This board features the AP33771, a high-performance USB PD sink controller from Diodes Incorporated. 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. It also supports a flexible PD3.0 and PPS for applications that require direct voltage and current requests, with fine-tuning capabilities.

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mikroSDK Library Blog


USB-C Sink 3 Click

USB C Sink 3 Click is a compact add-on board with a standalone autonomous USB power delivery controller. This board features the AP33771, a high-performance USB PD sink controller from Diodes Incorporated. 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. It also supports a flexible PD3.0 and PPS for applications that require direct voltage and current requests, with fine-tuning capabilities.

usbcsink3_click.png

Click Product page


Click library

  • Author : Nenad Filipovic
  • Date : Jun 2023.
  • Type : I2C/SPI type

Software Support

We provide a library for the USB-C Sink 3 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 USB-C Sink 3 Click driver.

Standard key functions :

  • usbcsink3_cfg_setup Config Object Initialization function.

    void usbcsink3_cfg_setup ( usbcsink3_cfg_t *cfg );
  • usbcsink3_init Initialization function.

    err_t usbcsink3_init ( usbcsink3_t *ctx, usbcsink3_cfg_t *cfg );
  • usbcsink3_default_cfg Click Default Configuration function.

    err_t usbcsink3_default_cfg ( usbcsink3_t *ctx );

Example key functions :

  • usbcsink3_set_voltage USB-C Sink 3 set the voltage function.

    err_t usbcsink3_set_voltage ( usbcsink3_t *ctx, usbcsink3_vtg_sel_t voltage );
  • usbcsink3_set_power USB-C Sink 3 set the power function.

    err_t usbcsink3_set_power ( usbcsink3_t *ctx, usbcsink3_pwr_sel_t power );
  • usbcsink3_get_vbus USB-C Sink 3 get VBUS function.

    err_t usbcsink3_get_vbus ( usbcsink3_t *ctx, float *vbus );

Example Description

This example demonstrates the use of USB-C Sink 3 Click board™ by setting DC power requests and control for Type-C connector-equipped devices (TCD).

The demo application is composed of two sections :

Application Init

Initializes SPI, I2C and ADC modules and log UART. After driver initialization the app set default settings: Voltage Selection: 5 [V] and Power: 15.0 [W].

void application_init ( void )
{
    log_cfg_t log_cfg;  /**< Logger config object. */
    usbcsink3_cfg_t usbcsink3_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.
    usbcsink3_cfg_setup( &usbcsink3_cfg );
    USBCSINK3_MAP_MIKROBUS( usbcsink3_cfg, MIKROBUS_1 );
    err_t init_flag = usbcsink3_init( &usbcsink3, &usbcsink3_cfg );
    if ( ( I2C_MASTER_ERROR == init_flag ) || ( SPI_MASTER_ERROR == init_flag ) )
    {
        log_error( &logger, " Communication init." );
        for ( ; ; );
    }
    Delay_ms ( 100 );

    if ( USBCSINK3_ERROR == usbcsink3_default_cfg ( &usbcsink3 ) )
    {
        log_error( &logger, " Default configuration." );
        for ( ; ; );
    }
    Delay_ms ( 100 );

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

Application Task

In this example, the app configures Power Data Objects (PDO) highest priority profile and requests power from a standard USB PD source adapter. It interprets power input requirements (voltage/current and maximum power) from the TCD. The example uses two configurations:

  • Voltage 5 [V] and Power 15.0 [W]
  • Voltage 9 [V] and Power 18.0 [W] Results are being sent to the Usart Terminal where you can track their changes.
void application_task ( void )
{
    static float voltage = 0.0;
    if ( ( USBCSINK3_OK == usbcsink3_set_voltage( &usbcsink3, USBCSINK3_VTG_SEL_5V ) ) &&
         ( USBCSINK3_OK == usbcsink3_set_power( &usbcsink3, USBCSINK3_PWR_SEL_15W ) ) )
    {
        log_printf( &logger, " Output:\r\nVoltage: 5.0 [V]\r\nPower: 15.0 [W]\r\n" );
        log_printf( &logger, " - - - - - -  - - - - - -\r\n" );
        Delay_ms ( 1000 );
        usbcsink3_get_vbus ( &usbcsink3, &voltage );
        log_printf( &logger, " VBUS : %.1f [V]\r\n", voltage );
        log_printf( &logger, " ------------------------\r\n" );
        Delay_ms ( 1000 );
        Delay_ms ( 1000 );
        Delay_ms ( 1000 );
        Delay_ms ( 1000 );
        Delay_ms ( 1000 );
    }

    if ( ( USBCSINK3_OK == usbcsink3_set_voltage( &usbcsink3, USBCSINK3_VTG_SEL_9V ) ) &&
         ( USBCSINK3_OK == usbcsink3_set_power( &usbcsink3, USBCSINK3_PWR_SEL_18W ) ) )
    {
        log_printf( &logger, " Output:\r\nVoltage: 9.0 [V]\r\nPower: 18.0 [W]\r\n" );
        log_printf( &logger, " - - - - - -  - - - - - -\r\n" );
        Delay_ms ( 1000 );
        usbcsink3_get_vbus ( &usbcsink3, &voltage );
        log_printf( &logger, " VBUS : %.1f [V]\r\n", voltage );
        log_printf( &logger, " ------------------------\r\n" );
        Delay_ms ( 1000 );
        Delay_ms ( 1000 );
        Delay_ms ( 1000 );
        Delay_ms ( 1000 );
        Delay_ms ( 1000 );
    }
}

Note

FAULT LED flickering notified of the system status:

  • Charging: Breathing light (2 sec dimming), 1 cycle is 4 sec.
  • Fully charged: Continuously lit Charging current < 500mA.
  • Mismatch: 1s flicker Voltage or power mismatch. Non-PD power source, 1 cycle is 2sec.
  • Fault: 300ms flicker OVP, 1 cycle is 600ms.

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.USBCSink3

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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