GD32E103 USB库和STM32是不兼容的,GD32E103是M4核,STM32F103是M3核.

在STM32 HAL库的基础上,如何加入GD32的USB库程序,This seems a bit cumbersome.

经过尝试,Thought of a lazy way.

将GD32的USB工程生成一个lib库文件,including initialization alreadyOUT事件,INJust provide the event.

目录

1.lib库配置

1.1、在libThe library is modified as neededGD的USB配置

1.2、封装lib接口函数

1.3、Event interrupt interface

生成lib文件

2、程序调用lib

2.1、添加lib库文件

 2.2、Associate interrupt callback function

2.3、初始化

2.4、收发测试

1.lib库配置

1.1、在libThe library is modified as neededGD的USB配置

1.2、封装lib接口函数

int ccid_usb_init(void) //int main()
{
    usb_rcu_config();
    usb_timer_init();
   // custom_hid_itfop_register(&custom_hid, &fop_handler);
    usbd_init (&custom_hid, USB_CORE_ENUM_FS, &custom_hid_desc, &usbd_custom_hid_cb);
    usb_intr_config();
    /* CTC peripheral clock enable */
    rcu_periph_clock_enable(RCU_CTC);
    /* CTC configure */
    ctc_config();
    return 0;  
}

        ccid_usb_init就是原来的mian函数,生成lib库之后main函数就不需要,启动文件*.s也不需要,所以libThe library will not actively associate the interrupt vector table,Interrupt needs to be calledlibassociated in the project.

//USBAccept the data callback interface function
extern void ccid_usb_command(uint8_t *request,int len);
 	
//提供USB数据发送接口															
void ccid_usb_respond(uint8_t *respond,int len)
{
	 usbd_ep_send(&custom_hid,CUSTOMHID_IN_EP,respond, len);
}

static uint8_t custom_hid_data_out (usb_dev *udev, uint8_t ep_num)
{
    custom_hid_handler *hid = (custom_hid_handler *)udev->dev.class_data[CUSTOM_HID_INTERFACE];
    int datalen = usbd_rxcount_get(udev,ep_num);
    ccid_usb_command(hid->data,datalen);
    usbd_ep_recev (udev, CUSTOMHID_OUT_EP, hid->data, 64);
    return USBD_OK;
}

1.3、Event interrupt interface

原来 gd32e10x_it.cAll interrupt events in are masked out,Reserve the required interrupt functions and rename them to provide external calls

void TIMER2_IRQHandler_lib(void)
{
    usb_timer_irq();
}
void  USBFS_IRQHandler_lib (void)
{
    usbd_isr (&custom_hid);
}
void USBFS_WKUP_IRQHandler_lib(void)
{
//....
}

生成lib文件

2、程序调用lib

        STM32Use your own project normally,I use it directly for testingSTM32CubeMx生成STM32F103C8T6的工程.

GD32E103是M4内核,USBPart of the vector configuration sumSTM32F103不一致,启动文件*.s就直接拷贝GD32E103库lib里面的文件

2.1、添加lib库文件

 2.2、Associate interrupt callback function

void TIMER2_IRQHandler(void)
{
    TIMER2_IRQHandler_lib();
}
void  USBFS_IRQHandler (void)
{
    USBFS_IRQHandler_lib();
}
void USBFS_WKUP_IRQHandler(void)
{
    USBFS_WKUP_IRQHandler_lib();
}

2.3、初始化

extern int ccid_usb_init(void);
int main(void)
{
    HAL_Init();
    SystemClock_Config();
    MX_GPIO_Init();
    MX_USART1_UART_Init();
    /* USER CODE BEGIN 2 */
    ccid_usb_init();
    print_x("main start\r\n");
    /* USER CODE END 2 */
    while(1)
    {
        LED_GPIO_Port->ODR ^= LED_Pin;
        HAL_Delay(200);   
    }
}

2.4、收发测试

extern void ccid_usb_respond(uint8_t *respond,int len);

void ccid_usb_command(uint8_t *request,int len)
{
	ccid_usb_respond(request,len);
}

所以,Join directly in the projectlib库,Just a few pieces of codeUSB串联起来,Send and receive so clearly.