"STM32F103VET6使用简单USB模块配置和源程序获取方法"

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STM32-USB usage involves the interaction between the host and the device. To avoid developing a driver program, the Windows built-in driver program is utilized. The device is enumerated as an HID class device, and a USB mouse is a standard USB-HID device. However, the operating system prevents direct access to the USB mouse report by the application program. Thus, the article introduces the use of the STM32 USB module through configuring clock initialization. The USB clock is set to 48MHz, derived from the PLL clock divided by 1.5. The article also mentions the use of custom HID devices to avoid driver development and allow free data transmission between the application program and the device. It focuses on the simple usage of the STM32F103 USB module and does not cover USB protocol. Those interested in the source program keil4-arm project and upper computer VB can inquire via the provided QQ. The specific STM32 development board mentioned is the "Fighting Mini Development Board" with the STM32F103VET6 chip.

/******************************************【端点 ERR】******************************************/

else

{

USART_send_str("出错！端点号是没有开启对端点。\r\n");

}

其他代码：

//设置 RX Valid .使端点继续接收

void USB_enable_ep0_rx(void)

{

u16 t = EP0REG;

// USART_send_str("EP0REG = ");USART_send_HEX(t>>8);USART_send_HEX(t&0xff);USART_send_str("\r\n");

t &= 0x8F8F;//1000 1111 1000 1111 把 t 位都设置为 0

t |= 0x8080;//1000 0000 1000 0000 把 w0 位都设置为 1

switch(EP0REG & 0x3000)

{

case 0x0000: t |= 0x3000;break;

case 0x1000: t |= 0x2000;break;

case 0x2000: t |= 0x1000;break;

case 0x3000: t |= 0x0000;break;

}

EP0REG = t;

// t = EP0REG;

// USART_send_str("EP0REG = ");USART_send_HEX(t>>8);USART_send_HEX(t&0xff);USART_send_str("\r\n");

}

//设置 RX Valid .使端点继续接收

void USB_enable_ep1_rx(void)

{

u16 t = EP1REG;

t &= 0x8F8F;//1000 1111 1000 1111 把 t 位都设置为 0

t |= 0x8080;//1000 0000 1000 0000 把 w0 位都设置为 1

switch(EP1REG & 0x3000)

{

case 0x0000: t |= 0x3000;break;

case 0x1000: t |= 0x2000;break;

case 0x2000: t |= 0x1000;break;

case 0x3000: t |= 0x0000;break;

}

EP1REG = t;

}

//读取端点 0 收到的数据

u8 USB_read_EP0_buf(u8 *buf, u32 *USB_buf)

{

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