用一款单个USB-C源充电器轻松给所有设备充电,让生活更简单。
A
A
硬件概览
它是如何工作的?
USB-C Source Click基于STUSB4700,这是一款独立的USB供电控制器,优化为向询问的消费设备协商提供给定数量的电源。它结合了高电压能力和低功耗,可安全地用于处理VBUS电源路径上的高电压的系统。该设备集成了CC引脚上的内部电路,能够耐受高电压,并确保在VBUS出现意外短路或连接到提供高电压的设备时的22V保护。此Click板基于外部电源供电,固定电压为24V。接下来,输入电源电压经过ST1S14,一款能够根据应用条件向负载提供高达3A DC电流的单片降压功率开关稳压器进行步进降压。该降压稳压器通过USB连接器与另一个Sink设备建立通信,表示
Power Delivery输出连接器。在源功率角色中,STUSB4700的VBUS_EN_SRC引脚在与Sink建立连接且VBUS处于有效操作范围内时启用输出的VBUS电源。开漏输出允许直接驱动PMOS晶体管。它还具有VBUS_SENSE引脚,用于检测VBUS存在、监视VBUS电压并在USB Type-C插座侧释放VBUS。STUSB4700通过标准的I2C接口与MCU通信,支持高达400kbit/s(快速模式)的传输,用于配置、控制和读取设备的状态。它还具有USB Power Delivery通信的可能性,通过CC1和CC2配置通道引脚用于连接和附件检测、插头方向确定以及USB Type-C电缆上的系统配置管理。根据
用户设置的STUSB4700的地址引脚ADDR0,它具有两个默认地址(0x28和0x29),确定从机地址的LSB,并可通过标有ADDR SEL的板上SMD跳线选择。提供了其他功能,如复位和“警报”中断,并通过mikroBUS™插座上的RST和INT引脚进行路由。RST引脚重置所有模拟信号、状态机并重新加载配置,而标有INT的中断输出表示警报输出。此Click板可以使用3.3V或5V逻辑电压级别运行,通过VCC SEL跳线选择。这样,既能够使3.3V和5V的MCU正常使用通信线路。此外,该Click板配备了包含易于使用的功能和示例代码的库,可用于进一步开发。
功能概述
开发板
Clicker 4 for STM32F3 是一款紧凑型开发板,作为完整的解决方案而设计,可帮助用户快速构建具备独特功能的定制设备。该板搭载 STMicroelectronics 的 STM32F302VCT6 微控制器,配备四个 mikroBUS™ 插槽用于连接 Click boards™、完善的电源管理功能以及其他实用资源,是快速开发各类应用的理想平台。其核心 MCU STM32F302VCT6 基于高性能
Arm® Cortex®-M4 32 位处理器,运行频率高达 168MHz,处理能力强大,能够满足各种高复杂度任务的需求,使 Clicker 4 能灵活适应多种应用场景。除了两个 1x20 引脚排针外,板载最显著的连接特性是四个增强型 mikroBUS™ 插槽,支持接入数量庞大的 Click boards™ 生态系统,该生态每日持续扩展。Clicker 4 各功能区域标识清晰,界面直观简洁,极大
提升使用便捷性和开发效率。Clicker 4 的价值不仅在于加速原型开发与应用构建阶段,更在于其作为独立完整方案可直接集成至实际项目中,无需额外硬件修改。四角各设有直径 4.2mm(0.165")的安装孔,便于通过螺丝轻松固定。对于多数应用,只需配套一个外壳,即可将 Clicker 4 开发板转化为完整、实用且外观精美的定制系统。
微控制器概述
MCU卡片 / MCU

建筑
ARM Cortex-M4
MCU 内存 (KB)
256
硅供应商
STMicroelectronics
引脚数
100
RAM (字节)
40960
使用的MCU引脚
mikroBUS™映射器
“仔细看看!”
Click board™ 原理图

一步一步来
项目组装
软件支持
库描述
该库包含 USB-C Source Click 驱动程序的 API。
关键功能:
usbcsource_hw_reset- 硬件复位功能。usbcsource_get_alert_status- 获取警报状态功能。usbcsource_set_pdo_config- 设置PDO配置功能。
开源
代码示例
完整的应用程序代码和一个现成的项目可以通过NECTO Studio包管理器直接安装到NECTO Studio。 应用程序代码也可以在MIKROE的GitHub账户中找到。
/*!
* @file main.c
* @brief USBCSource Click example
*
* # Description
* This is an example that demonstrates the use of the USB-C Source Click board.
*
* The demo application is composed of two sections :
*
* ## Application Init
* Initialization driver enables - I2C, set hardware reset and default configuration
* and display configuration of the five PDOs, also write log.
*
* ## Application Task
* In this example, we show port status, monitoring, and connections.
* All data logs write on USB uart changes every 5 sec.
*
* Additional Functions :
* - void display_port_status ( ) - Display port status info.
* - void display_monitoring_status ( ) - Display monitoring status info.
* - void display_connection_status ( ) - Display connection status info.
*
* @author Stefan Ilic
*
*/
#include "board.h"
#include "log.h"
#include "usbcsource.h"
static usbcsource_t usbcsource;
static log_t logger;
port_status_t port_status;
monitor_status_t monitor_status;
connection_status_t conn_status;
pdo_config_t pdo_data;
/**
* @brief USB-C Source display port status.
* @details This function is used for displaying port status.
*/
void display_port_status ( void );
/**
* @brief USB-C Source display monitoring status.
* @details This function is used for displaying monitoring status.
*/
void display_monitoring_status ( void );
/**
* @brief USB-C Source display connection status.
* @details This function is used for displaying connection status.
*/
void display_connection_status ( void );
void application_init ( void ) {
log_cfg_t log_cfg; /**< Logger config object. */
usbcsource_cfg_t usbcsource_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.
usbcsource_cfg_setup( &usbcsource_cfg );
USBCSOURCE_MAP_MIKROBUS( usbcsource_cfg, MIKROBUS_1 );
err_t init_flag = usbcsource_init( &usbcsource, &usbcsource_cfg );
if ( I2C_MASTER_ERROR == init_flag ) {
log_error( &logger, " Application Init Error. " );
log_info( &logger, " Please, run program again... " );
for ( ; ; );
}
usbcsource_hw_reset( &usbcsource );
Delay_ms ( 500 );
usbcsource_default_config( &usbcsource );
Delay_ms ( 500 );
log_printf( &logger, "- - - - - - - - - - - - - -\r\n" );
usbcsource_get_pdo_config( &usbcsource, USBCSOURCE_SEL_PDO1, &pdo_data );
log_printf( &logger, " PDO 1 - Voltage = %.2f V \r\n", pdo_data.vtg_data );
log_printf( &logger, " PDO 1 - Current = %.2f A \r\n", pdo_data.curr_data );
log_printf( &logger, "- - - - - - - - - - - - - -\r\n" );
usbcsource_get_pdo_config( &usbcsource, USBCSOURCE_SEL_PDO2, &pdo_data );
log_printf( &logger, " PDO 2 - Voltage = %.2f V \r\n", pdo_data.vtg_data );
log_printf( &logger, " PDO 2 - Current = %.2f A \r\n", pdo_data.curr_data );
log_printf( &logger, "- - - - - - - - - - - - - -\r\n" );
usbcsource_get_pdo_config( &usbcsource, USBCSOURCE_SEL_PDO3, &pdo_data );
log_printf( &logger, " PDO 3 - Voltage = %.2f V \r\n", pdo_data.vtg_data );
log_printf( &logger, " PDO 3 - Current = %.2f A \r\n", pdo_data.curr_data );
log_printf( &logger, "- - - - - - - - - - - - - -\r\n" );
usbcsource_get_pdo_config( &usbcsource, USBCSOURCE_SEL_PDO4, &pdo_data );
log_printf( &logger, " PDO 4 - Voltage = %.2f V \r\n", pdo_data.vtg_data );
log_printf( &logger, " PDO 4 - Current = %.2f A \r\n", pdo_data.curr_data );
log_printf( &logger, "- - - - - - - - - - - - - -\r\n" );
usbcsource_get_pdo_config( &usbcsource, USBCSOURCE_SEL_PDO5, &pdo_data );
log_printf( &logger, " PDO 5 - Voltage = %.2f V \r\n", pdo_data.vtg_data );
log_printf( &logger, " PDO 5 - Current = %.2f A \r\n", pdo_data.curr_data );
log_printf( &logger, "- - - - - - - - - - - - - -\r\n" );
log_info( &logger, " Application Task " );
}
void application_task ( void ) {
usbcsource_get_port_status( &usbcsource, &port_status );
display_port_status( );
Delay_ms ( 100 );
log_printf( &logger, "- - - - - - - - - - - - - - " );
log_printf( &logger, "- - - - - - - - - - - - - -\r\n" );
usbcsource_get_monitoring_status( &usbcsource, &monitor_status );
display_monitoring_status( );
Delay_ms ( 100 );
log_printf( &logger, "- - - - - - - - - - - - - - " );
log_printf( &logger, "- - - - - - - - - - - - - -\r\n" );
usbcsource_get_connection_status( &usbcsource, &conn_status );
display_connection_status( );
Delay_ms ( 100 );
log_printf( &logger, "- - - - - - - - - - - - - - " );
log_printf( &logger, "- - - - - - - - - - - - - -\r\n" );
Delay_ms ( 1000 );
Delay_ms ( 1000 );
Delay_ms ( 1000 );
Delay_ms ( 1000 );
Delay_ms ( 1000 );
}
int main ( void )
{
/* Do not remove this line or clock might not be set correctly. */
#ifdef PREINIT_SUPPORTED
preinit();
#endif
application_init( );
for ( ; ; )
{
application_task( );
}
return 0;
}
void display_port_status ( void ) {
log_printf( &logger, " Attached Device : " );
switch ( port_status.attached_device ) {
case USBCSOURCE_ATTACHED_DEVICE_NONE_ATT: {
log_printf( &logger, "No device connected\r\n" );
break;
}
case USBCSOURCE_ATTACHED_DEVICE_SNK_ATT: {
log_printf( &logger, "Sink device connected\r\n" );
break;
}
case USBCSOURCE_ATTACHED_DEVICE_SRC_ATT: {
log_printf( &logger, "Source device connected\r\n" );
break;
}
case USBCSOURCE_ATTACHED_DEVICE_DBG_ATT: {
log_printf( &logger, "Debug accessory device connected\r\n" );
break;
}
case USBCSOURCE_ATTACHED_DEVICE_AUD_ATT: {
log_printf( &logger, "Audio accessory device connected\r\n" );
break;
}
case USBCSOURCE_ATTACHED_DEVICE_POW_ACC_ATT: {
log_printf( &logger, "Power accessory device connected\r\n" );
break;
}
}
log_printf( &logger, " Low Power Standby :" );
if ( port_status.low_power_standby == USBCSOURCE_LOW_POWER_STANDBY_ON ) {
log_printf( &logger, " ON\r\n" );
} else {
log_printf( &logger, " OFF\r\n" );
}
log_printf( &logger, " Power Mode :" );
if ( port_status.power_mode == USBCSOURCE_POWER_MODE_SRC ) {
log_printf( &logger, " Source\r\n" );
} else {
log_printf( &logger, " Sink\r\n" );
}
log_printf( &logger, " Data Mode :" );
if ( port_status.data_mode == USBCSOURCE_DATA_MODE_DFP ) {
log_printf( &logger, " DFP\r\n" );
} else {
log_printf( &logger, " UFP\r\n" );
}
log_printf( &logger, " Attach :" );
if ( port_status.attach == USBCSOURCE_CONN_ATTACHED ) {
log_printf( &logger, " Attached\r\n" );
} else {
log_printf( &logger, " Unattached\r\n" );
}
}
void display_monitoring_status ( void ) {
log_printf( &logger, " VBUS Ready :" );
if ( monitor_status.vbus_ready == USBCSOURCE_VBUS_READY_CONNECTED ) {
log_printf( &logger, " Connected\r\n" );
} else {
log_printf( &logger, " Disconnected\r\n" );
}
log_printf( &logger, " VBUS Safe :" );
if ( monitor_status.vbus_vsafe0v == USBCSOURCE_VBUS_VSAFE0V_0_8V_LOWER ) {
log_printf( &logger, " Lower than 0.8V\r\n" );
} else {
log_printf( &logger, " Higher than 0.8V\r\n" );
}
log_printf( &logger, " VBUS Valid :" );
if ( monitor_status.vbus_valid == USBCSOURCE_VBUS_VALID_3_9V_HIGHER ) {
log_printf( &logger, " Lower than 3.9V\r\n" );
} else {
log_printf( &logger, " Higher than 3.9V\r\n" );
}
}
void display_connection_status ( void ) {
log_printf( &logger, " Conn. orientation :" );
if ( conn_status.cc_reverse == 1 ) {
log_printf( &logger, " Twisted\r\n" );
} else {
log_printf( &logger, " Straight\r\n" );
}
log_printf( &logger, " Sink Power Level :" );
if ( conn_status.snk_power_level == 0 ) {
log_printf( &logger, " Rp standard current is connected\r\n" );
} else if ( conn_status.snk_power_level == 1 ) {
log_printf( &logger, " Rp 1.5A is connected\r\n" );
} else {
log_printf( &logger, " Rp 3.0A is connected\r\n" );
}
}
// ------------------------------------------------------------------------ END
额外支持
资源
类别:USB-C 电力传输































