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Chào mọi người, hiện tại e đang làm một project về Keyboard HID trên con Stm32f103c8t6.
Hiện tại thì khi e cắm kit với pc thì pc đã nhận kit là một keyboard
Nhưng khi bấm nút (giả sử kí tự A) thì lại ko được. em dùng Mikroc
còn đây là thư viện
Hiện tại thì khi e cắm kit với pc thì pc đã nhận kit là một keyboard
Nhưng khi bấm nút (giả sử kí tự A) thì lại ko được. em dùng Mikroc
Code:
#include "USB_DSC.c"
char readbuff[64];
char writebuff[64];
unsigned long int InterruptCount = 0;
void USB0Interrupt() iv IVT_INT_USB_LP_CAN_RX0
{
//GPIOB_ODR.B2 = 1;
USB_Interrupt_Proc();
InterruptCount++;
//GPIOB_ODR.B2 = 0;
}
void usb_init1()
{
GPIO_Digital_Output(&GPIOA_BASE, _GPIO_PINMASK_8); // USB Control
GPIOA_ODR.B8 = 1; // activate USB
HID_Enable(&readbuff,&writebuff);
}
void readKeyboard()
{
char modifier=0;
char keycode[6];
//Some Keyboard Buttons
keycode[0]=0;
if (InterruptCount > 10)
{
if (GPIOA_IDR.B0==1) keycode[0]=0x04; //A or a
if (GPIOB_IDR.B4==1) keycode[0]=0x16; //S or s
if (GPIOB_IDR.B5==1) keycode[0]=0x07; //D or d
if (GPIOB_IDR.B6==1) keycode[0]=0x09; //F or f
if (GPIOB_IDR.B7==1) keycode[0]=0x0A; //G or g
if (GPIOB_IDR.B8==1) keycode[0]=0x0B; //H or h
if (GPIOB_IDR.B9==1) keycode[0]=0x0D; //J or j
if (GPIOB_IDR.B10==1)keycode[0]=0x0E; //K or k
keycode[1]=0;
keycode[2]=0;
keycode[3]=0;
keycode[4]=0;
keycode[5]=0;
writebuff[0]=0x01;
writebuff[1]=0b00000000;
writebuff[2]=0x00;
writebuff[3]=keycode;
writebuff[4]=0;
writebuff[5]=0;
writebuff[6]=0;
while(!HID_Write(&writebuff, 7));
writebuff[1] = 0; // No modifiers now
writebuff[3] = 0; // No key pressed now
while(!HID_Write(&writebuff, 7)); // Copy to USB buffer and try to send
}
}
void main()
{
GPIO_digital_input(&GPIOB_BASE, _GPIO_PINMASK_ALL );
GPIO_digital_output(&GPIOB_BASE, _GPIO_PINMASK_2);
GPIO_digital_input(&GPIOA_BASE, _GPIO_PINMASK_0 );
usb_init1();
UART1_init(115200);
delay_ms(100);
while(1)
{
readKeyboard();
delay_ms(100);
}
}
Code:
const unsigned int USB_VENDOR_ID = 0x1234;
const unsigned int USB_PRODUCT_ID = 0x0001;
const char USB_SELF_POWER = 0x80; // Self powered 0xC0, 0x80 bus powered
const char USB_MAX_POWER = 50; // Bus power required in units of 2 mA
const char HID_INPUT_REPORT_BYTES = 64;
const char HID_OUTPUT_REPORT_BYTES = 64;
const char USB_TRANSFER_TYPE = 0x03; //0x03 Interrupt
const char EP_IN_INTERVAL = 1;
const char EP_OUT_INTERVAL = 1;
const char USB_INTERRUPT = 1;
const char USB_HID_EP = 1;
const char USB_HID_RPT_SIZE = 63;
/* Device Descriptor */
const struct {
char bLength; // bLength - Descriptor size in bytes (12h)
char bDescriptorType; // bDescriptorType - The constant DEVICE (01h)
unsigned int bcdUSB; // bcdUSB - USB specification release number (BCD)
char bDeviceClass; // bDeviceClass - Class Code
char bDeviceSubClass; // bDeviceSubClass - Subclass code
char bDeviceProtocol; // bDeviceProtocol - Protocol code
char bMaxPacketSize0; // bMaxPacketSize0 - Maximum packet size for endpoint 0
unsigned int idVendor; // idVendor - Vendor ID
unsigned int idProduct; // idProduct - Product ID
unsigned int bcdDevice; // bcdDevice - Device release number (BCD)
char iManufacturer; // iManufacturer - Index of string descriptor for the manufacturer
char iProduct; // iProduct - Index of string descriptor for the product.
char iSerialNumber; // iSerialNumber - Index of string descriptor for the serial number.
char bNumConfigurations; // bNumConfigurations - Number of possible configurations
} device_dsc = {
0x12, // bLength
0x01, // bDescriptorType
0x0200, // bcdUSB
0x00, // bDeviceClass
0x00, // bDeviceSubClass
0x00, // bDeviceProtocol
8, // bMaxPacketSize0
USB_VENDOR_ID, // idVendor
USB_PRODUCT_ID, // idProduct
0x0001, // bcdDevice
0x01, // iManufacturer
0x02, // iProduct
0x00, // iSerialNumber
0x01 // bNumConfigurations
};
/* Configuration 1 Descriptor */
const char configDescriptor1[]= {
// Configuration Descriptor
0x09, // bLength - Descriptor size in bytes
0x02, // bDescriptorType - The constant CONFIGURATION (02h)
0x29,0x00, // wTotalLength - The number of bytes in the configuration descriptor and all of its subordinate descriptors
1, // bNumInterfaces - Number of interfaces in the configuration
1, // bConfigurationValue - Identifier for Set Configuration and Get Configuration requests
0, // iConfiguration - Index of string descriptor for the configuration
USB_SELF_POWER, // bmAttributes - Self/bus power and remote wakeup settings
USB_MAX_POWER, // bMaxPower - Bus power required in units of 2 mA
// Interface Descriptor
0x09, // bLength - Descriptor size in bytes (09h)
0x04, // bDescriptorType - The constant Interface (04h)
0, // bInterfaceNumber - Number identifying this interface
0, // bAlternateSetting - A number that identifies a descriptor with alternate settings for this bInterfaceNumber.
2, // bNumEndpoint - Number of endpoints supported not counting endpoint zero
0x03, // bInterfaceClass - Class code
0, // bInterfaceSubclass - Subclass code
0, // bInterfaceProtocol - Protocol code
0, // iInterface - Interface string index
// HID Class-Specific Descriptor
0x09, // bLength - Descriptor size in bytes.
0x21, // bDescriptorType - This descriptor's type: 21h to indicate the HID class.
0x01,0x01, // bcdHID - HID specification release number (BCD).
0x00, // bCountryCode - Numeric expression identifying the country for localized hardware (BCD) or 00h.
1, // bNumDescriptors - Number of subordinate report and physical descriptors.
0x22, // bDescriptorType - The type of a class-specific descriptor that follows
USB_HID_RPT_SIZE,0x00, // wDescriptorLength - Total length of the descriptor identified above.
// Endpoint Descriptor
0x07, // bLength - Descriptor size in bytes (07h)
0x05, // bDescriptorType - The constant Endpoint (05h)
USB_HID_EP | 0x80, // bEndpointAddress - Endpoint number and direction
USB_TRANSFER_TYPE, // bmAttributes - Transfer type and supplementary information
0x40,0x00, // wMaxPacketSize - Maximum packet size supported
EP_IN_INTERVAL, // bInterval - Service interval or NAK rate
// Endpoint Descriptor
0x07, // bLength - Descriptor size in bytes (07h)
0x05, // bDescriptorType - The constant Endpoint (05h)
USB_HID_EP, // bEndpointAddress - Endpoint number and direction
USB_TRANSFER_TYPE, // bmAttributes - Transfer type and supplementary information
0x40,0x00, // wMaxPacketSize - Maximum packet size supported
EP_OUT_INTERVAL // bInterval - Service interval or NAK rate
};
const struct {
char report[];
}hid_rpt_desc =
{
0x05, 0x01, // USAGE_PAGE (Generic Desktop)
0x09, 0x06, // USAGE (Keyboard)
0xa1, 0x01, // COLLECTION (Application)
0x05, 0x07, // USAGE_PAGE (Keyboard)
0x19, 0xe0, // USAGE_MINIMUM 224(Keyboard LeftControl)
0x29, 0xe7, // USAGE_MAXIMUM 231(Keyboard Right GUI) (left and right: alt, shift, ctrl and win)
0x15, 0x00, // LOGICAL_MINIMUM (0)
0x25, 0x01, // LOGICAL_MAXIMUM (1)
0x75, 0x01, // REPORT_SIZE (1)
0x95, 0x08, // R EPORT_COUNT (8)
0x81, 0x02, // INPUT (Data,Var,Abs)
0x95, 0x01, // REPORT_COUNT (1)
0x75, 0x08, // REPORT_SIZE (8)
0x81, 0x03, // INPUT (Cnst,Var,Abs)
0x95, 0x05, // REPORT_COUNT (5)
0x75, 0x01, // REPORT_SIZE (1)
0x05, 0x08, // USAGE_PAGE (LEDs)
0x19, 0x01, // USAGE_MINIMUM (Num Lock)
0x29, 0x05, // USAGE_MAXIMUM (Kana)
0x91, 0x02, // OUTPUT (Data,Var,Abs)
0x95, 0x01, // REPORT_COUNT (1)
0x75, 0x03, // REPORT_SIZE (3)
0x91, 0x03, // OUTPUT (Cnst,Var,Abs)
0x95, 0x06, // REPORT_COUNT (6)
0x75, 0x08, // REPORT_SIZE (8)
0x15, 0x00, // LOGICAL_MINIMUM (0)
0x25, 0x65, // LOGICAL_MAXIMUM (101)
0x05, 0x07, // USAGE_PAGE (Keyboard)
0x19, 0x00, // USAGE_MINIMUM (Reserved (no event indicated))
0x29, 0x65, // USAGE_MAXIMUM (Keyboard Application)
0x81, 0x00, // INPUT (Data,Ary,Abs)
0xc0 // END_COLLECTION
};
//Language code string descriptor
const struct {
char bLength;
char bDscType;
unsigned int string[1];
} strd1 = {
4,
0x03,
{0x0409}
};
//Manufacturer string descriptor
const struct{
char bLength;
char bDscType;
unsigned int string[10];
}strd2={
22, //sizeof this descriptor string
0x03,
{'T','U',' ','G','a','b','r','o','v','o'}
};
//Product string descriptor
const struct{
char bLength;
char bDscType;
unsigned int string[15];
}strd3={
32, //sizeof this descriptor string
0x03,
{'U','S','B',' ','M','a','n','i','p','u','l','a','t','o','r'}
};
//Array of configuration descriptors
const char* USB_config_dsc_ptr[1];
//Array of string descriptors
const char* USB_string_dsc_ptr[3];
void USB_Init_Desc(){
USB_config_dsc_ptr[0] = &configDescriptor1;
USB_string_dsc_ptr[0] = (const char*)&strd1;
USB_string_dsc_ptr[1] = (const char*)&strd2;
USB_string_dsc_ptr[2] = (const char*)&strd3;
}
